close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2404822

код для вставки
A. P. ADNEY
EAM?ZZ
FLUID ACTUATED CLUTCH
Filed Aug. 16, 1943
10""
'
5 Sheets-sheet 2
y
ENE/EN
RY
4
July 30,, 1946.
2,404,822
A. P. ADNEY
FLUID ACTUA‘I'ED CLUTCH
Filed Aug. 16, 1943
5 Sheets-Sheet 5 ’
[.Il-i
‘ 17.5? I
_
v
INVENTOR.
Adria/2 P'AJney
BY
‘
‘
Y
ATTOPNEYCY
Patented July 30, 1946
2,404,822
UNITED STATES PATENT OFFlCEa
FLUID ACTUATED CLUTCH
Adrian P. Adney, Battle Creek, Mich., assignor to
American-Marsh Pumps, Inc., Battle Creek,
Mich., a corporation‘of Michigan
Application August 16, 1943, Serial No. 498,785
31 Claims. (01. 192-85)
1
,
This invention relates to improvements in ?uid
actuated clutches.
2
.
-
_
.
matic closing and opening‘ discharge valve. for
‘
the actuating ?uid.
The main objects of this invention are:
'
‘
'
Fig. 5 is a fragmentary longitudinal section of
First, to provide a ?uid actuated clutch, the
actuation of which is subject to manual control,
to be engaged when predetermined speeds are at
tained and to be automatically disengaged on
a modi?ed form or embodiment of the invention,
the modi?cation being in the means for manually
delivering the liquid to the clutch and a modi?ca
tion in the form of the discharge valves.
Fig.6 is a fragmentary view partially in‘section
the stopping of the prime mover or when the
speed of the prime mover falls below a prede
of a further modi?cation or embodiment ‘of my.
termined R. P. M.
10 invention in which the return of the liquid to the
Second, to provide a fluid actuated clutch
clutch is pressure controlled.
'
which is highly desirable for use in motorized
Fig. 7 is a fragmentary view partially in‘ sec
?re ?ghting apparatus of the type utilizing an
tion on line l—'! of Fig. 8 showing a further
internal combustion engine of the motor vehicle
modi?cation or embodiment of my invention in
as the prime mover for the pump.
which the return of the liquid is vacuum con
Third, to provide a clutch of the character de
trolled.
‘
scribed which is e?icient and may be operated
Fig. 8 is a fragmentary view partially in trans
from a source of vacuum or a source of pressure.
verse section on line 8-8 of Fig. '7.
Fourth, to provide a fluid actuated clutch in
In the preferred embodiment of the invention
which the delivery of ?uid to the clutch is man
illustrated in Figs. 1 to 4 inclusive, the invention
ually controlled, the discharge of ?uid from op
is shown adapted for use either with manually
erative relation to the clutch elements being auto
controlled suction or manually controlled air un
matic when the speed of rotation of the driven
der pressure, thus adapting the structure for
element of the clutch falls below a predeter
various uses where air under pressure is available
25 and various‘uses where a vacuum is available.
mined R. P. M.
Fifth, to provide a ?uid actuated clutch with
In Fig. 5 an embodiment of the invention is illus
simple means for manually controlling the de
trated for use where neither vacuum. nor air
livery of ?uid to the clutch, permitting the use
under pressure is available,
'
of the prime mover, as the motor of a motor
Reference being had to the drawings, I repre
Vehicle, for propelling the vehicle or for deliver- ‘ sents the ‘power shaft which is provided with a
ing power through the clutch.
.
coupling member 2 designed to be connected to a
Sixth, to provide a clutch having these several
source of power, for instance, the crankshaft of
advantages which is very simple and compact in
an internal combustion engine. The key to this
structure.
shaft is a chambered driving clutch element 3
Further objects relating to details and econo 15.3 within which is arranged a driven clutch element
mies of construction and operation will appear
It, the driven clutch element being secured to
from the description to follow. The invention is
the driven shaft 5 which is provided with a cou
clearly de?ned in the claims.
A structure embodying the features of the in
vention is clearly illustrated in the accompany
ing drawings, in which:
pling member 6 through which the driven mem
ber is connected to the machine, as for example,
a centrifugal pump, not illustrated.
The shafts l and 5 are supported in suitable
Fig. 1 is an end elevation of a clutch embodying
bearings, designated, generally by the numerals
the features of the invention, viewed from the
power end, parts being broken away and other
l, in a housing 8. This housing is made up of
a pair of members 9 and IE] having ?anges ii
parts partially in vertical transverse section on ‘
and [2‘ respectively and secured together by
line I—! of Fig. 3.
Fig. 2 is a fragmentary view partially in verti
cal section showing one of the valve elements in
open position, it being shown in actuated posi
means of suitable bolts or screws l3. This casing
or housing is of the liquid type periphery so that
liquid discharged therein is thrown out by cen
tion in Fig. 1.
trifugal force through the discharge ports M of
the member 3, drains down the walls thereof, and
I
Fig. 3 is a longitudinal section on line 3—-3 of
' into the sump I5 through the drain holes i6.
Fig. 1, parts being shown in full line for con
venience in illustration.
~
'
'Fig. 4 is an enlarged fragmentary section on
line 4-4 of Fig. 3 showing details of the “auto! .55
The chamber of member 3 is adapted to periph
erally retain liquid except as it is discharged
through the ports l4.
‘
.
The driving member 3 has internallugs I‘! be
2,404,822
4'
3
tween which are engaged a series of movable
clutch members l3 so that while these clutch
members may be connected to rotate with the '
i
a centrifugal pump. Neither the pump nor th
internal combustion engine manifold are illus
trated, but the advantage of this source of vac
uum will be appreciated when, it is understood
that the centrifugal pumps may be mounted on
the chassis of a motor vehicle and driven from
driven member, they are free to move radially
thereof into and out of clutching engagement
with the periphery of the member 4, which has
the motor of the vehicle, this providing» highly
suitable cylindrical friction face. The movable
desirable ?re ?ghting equipment, utilizing trucks
clutch members '18 are actuated to clutching po
and even pleasure vehicles.
sition by means of a liquid within the driving
member 3 under the action of centrifugal force 10 _ When vacuum is used the Valve 39 is adjusted to
connect the reservoir 36 to the source of suction
in the liquid, desirably mercury on account of its
and this results in the raising or drawing of liquid
speci?c gravity.
‘
from the sump into the reservoir 35. The reser
.The ports l4 are provided with valves l9 dis
voir is provided with an outwardly opening dis
posed radially and reciprocating in guide mem
bers 20, the valves being provided with weights
2| reciprocating and supported in the radial bores
’ charge valve 4!, normally seated by means of the
spring 42. As long as the vacuum is maintained
22 in the casing (Figs, 3 and 4). The springs 23
in the reservoir 36 the discharge valve remains
are of such strength as to normally unseat or
seated or closed.
However, as soon as the valve
39>is adjusted to cut off the vacuum and connect
rest or when its speed is below a predetermined 20 the reserVoir to the atmosphere, the weight of the
liquid opens the valve 4| and the liquid is dis
R. P, M. However, when its speed reaches or- ex
charged into the auxiliary reservoir or chamber
ceeds this rate the valves are closed, closing the
ports or passages [4. It will be noted by reference
43- and from thence through the pipe or conduit
to Fig. 4 that the discharge M is angled, its out
44 into the chambered clutch member 3. This
provides effective manual control of the clutch.
let facing rearwardly relative to the direction of
The ?uid is delivered to the clutch while the
rotation of the clutch member 3, so that the es
driving member is rotating and after it has
cape therefrom of the liquid is by gravity and it
is not thrown outwardly with force that would
reached such a speed as to close the valves 19.
result in undesirable turning action or atomizing
The liquid being retained in the clutch member 3
open the valves when the driving member 3 is at
action on the liquid.
The pin 24 in the valve 30 is subjected to centrifugal action and actuates
the clutch engaging members Hi. When the
casing limits the inward movement or opening
driven member is stopped or when the speed falls
movement of the valve members under the ten
below a predetermined rate, the valves l9 auto- ‘
sion of the springs.
matically open and the liquid is discharged. This
With this arrangement the mercury or other
liquid introduced into the clutch is retained while 35 insures that the prime mover has attained the
the driving clutch member is rotating at prede
desired speed before the clutch is engaged, and
termined speed or when it is desired .to'engage the
this is particularly desirable where electric motors
clutch and retain it in engagement.
are used.
'
With this arrangement of parts a very simple
As stated, the mercury drains from the casing
into the sump I5 through the port 16. This drain
and effective control is provided and it has a wide
opening I6 is controlled by a plunger valve 25 re
application. It will be understood that the con
ciprocating in a suitable bore-like casing 26 and
trol valves 33, When pressure is used, and 33,
held in normally open position by the spring 21
(Fig. 2). It will be understood that in Fig. 1 the
valve is shown in its closed position which, how
ever, is not its normal position. The movement
of the valve is controlled by the stop 28 engaging
a slot 29 inv the valve, the ends of the slot con
when vacuum is used, may be located as desired
or remote controls may be employed.
‘
The embodiment of the invention shown in Fig.
5 is designed for use where vacuum or air under
pressure is not available or where installations
are such that connections are not conveniently
made or where economy is an important factor.
stituting stop members. This stop is accessible
through the closure plug 30. The closure 3! for 50 In that structure the casing 45 is provided with
the valve bore is removable to permit the remov
an outwardly opening drain valve 46, held against
ing and assembling of the valve.
the seat 41 by spring 48., this spring, however, be
A pipe or conduit 32 is connected to the 0p
ing such that the weight of the mercury or other
posite end of the bore 26, this being adapted to
liquid is sui?cient to open the valve and permit
supply air under pressure. A manually controlled
the liquid to discharge into sump 49. At one side
valve 33 is provided, it being understood that in
of the sump is a plunger barrel 56 receiving the
practice this is located in some convenient place.
displacement plunger 51 which is normally re
When pressure is turned on the valve 25 is moved
tracted to permit the liquid to flow into the sump
to its position to close the drain opening [6 and
49. When the plunger is advanced into the sump
to deliver air through the passage 34 into the
a su?‘icient quantity ‘of liquid is displaced or
60
sump. This forces the liquid in the sump through
poured therefrom through the pipe 52 into the
the pipe or conduit 35 into the reservoir 36.
chambered driving member 53 ‘of the clutch, the
The structure illustrated in Fig. 1 is designed
coacting driven member being shown at 54 and
for use either with air under pressure or with
the clutch engaging member being shown at 55.
‘vacuum, the vacuum connections being shown at 65
In this structure the discharge valves 56 coact
31, the conduit opening into the reservoir 36 at
with ports 51 in the periphery of the member 53,
38. This vacuum connection is provided with a
the stems of the valves reciprocating in guides 58
and being urged to the open position by spring
valve 39, the valve being a two-way valve adapted
59. The valves here are seated by the centrifugal
to connect the reservoir to a source of vacuum or
to the atmosphere, the atmosphere port being 70 action when the R. P. M. of the member 53 reaches
a predetermined rate. The plunger rod 60 may
shown at~40.
‘
The ‘source of vacuum may be the intake mani
fold of an internal combustion engine.
.The
structure illustrated is adaptedfor use as ‘a ‘con
be connected to a suitable remote control or pro
vided with a‘ hand piece, not shown. This
plunger rod is provided with a packing 6i seated
trol clutch for an ‘internal combustion engine to 75 against the ring 62, the packing gland 63 being
2,404,822‘
adjustable to properly seal the plungerrod. When
provided with a valve seated by the combined
the plunger is moved into the sump the pressure
on the liquid insures the seating of the valve 46.
In the embodiment of the invention shown in
Fig. 6, the parts are the same as shown in Fig. 5
voir,‘ the spring being ofinsuf?cient tension to
action of a spring and. vacuum within said reser
, seat the valve against the‘ weight .of the liquid
when the source of vacuum is cut-o? and the
with the exception‘ that the cylinder and plunger
reservoir vented to the atmosphere.
are omitted and an air conduit 64 is connected
to the sump 65. This conduit 64 is connected to
3. In a clutch, the combination .of driving and
driven clutch members, one of said members be_
ing chambered and adapted to receive :a liquid, a
the air pressure tank 66 and is controlled by the
valve 61. Air is supplied to the tank through the
conduit 58. This structure is somewhatsimilar
to theiembodiment shown in Figs. 1 and 2, which
is adapted either for air pressure or vacuum.
The modi?cation shown in Fig. 7 is an adapta
tion for vacuum control only. Here the sump 69'
is connected by conduit 10 to the reservoir ‘H,
the reservoir being connected to a. source of.
vacuum ‘[2 controlled by the valve'l3, to connect
it either to the source of vacuum or the atmos
discharge valve for said chamber actuated to
closed position by, centrifugal force resulting from
the rotation of said clutch member and auto
matically opening when not subject to such force,
a liquid actuated clutch engaging element oper
' atively associated with said clutch members to be
actuated by the liquid within said chamber when
it is subjected to centrifugal force, a ?xed casing
for said clutch members into which the liquid is
discharged from said chambered clutch chamber,
phere. The discharge is through the valve." and 20' a sump having a return check valve connection
conduit 15.
'
to said casing, and manually controlled air pres
In Fig. 8 is illustrated the arrangement of
sure means for returning the liquid from said
valves and relationship of the driving anddriven
sump to said chambered clutch member.
clutch members and the clutch‘ engaging mem
4. In a clutch, the combination of driving and
bers. Here the clutch engaging members 16 have
driven clutch members, one of said members hav
driving connection to the driven clutch member
ing a liquid chamber therein, a discharge valve
Tl through the lugs 18.
‘
.
for said liquid chamber actuated to closed posi
tion by centrifugal force resulting from the ro
I have illustrated and described the invention
in a highly satisfactory embodiment thereof. I
tation of said clutch member, a liquid actuated
have not attempted to illustrate various other 30 clutch engaging element operatively associated
adaptations and embodiments which I contem
with said'clutch members to be actuated by the
plate, as it is believed this disclosure will enable
liquid within said ‘chamber when it is subjected
those skilled in the art to embody or adapt the
to centrifugal force, a casing into which the liquid
improvements as may be desired.
is discharged from said chambered‘clutch mem
.- Having thus described my invention, what I
claim' as new and desire to secure by Letters
Patent, is:
ber, a sump associated with said casing, a reser
voir having-an inlet connection to said sump and
a discharge connection to said chambered clutch
1. In a clutch, the combination of a casing hav
member, and a gaseous pressure differential
means for transferring the liquid from said sump
ing a sump associated therewith, a chambered
driving member. adapted to receive a ?uent mate 40 to said reservoir including means for manually
rial and provided with discharge ports discharging
into said casing, normally open valves coacting
controlling. the gaseous pressure differential
means and the discharge of the liquid from said
with said ports, said valves being seated by rota- 7
tion of said driving member, a driven member
reservoir to said chambered clutch member.
>
5. In a ‘clutch, the combination of a clutch
disposed within said driving member, a plurality 45 member having a liquidchamber therein, said
chamber having a discharge valve adapted to be
of clutch elements radially movable relative to
actuated to closed position by centrifugal force
both members and rotatably connected with one
member and drivingly engageable with the other,
and to open when not subjected to such force, a
coacting clutch member disposed within said
a reservoir having a suction connection to said
sump and a valved connection to a source of 50 chambered member, a clutch element disposed
vacuum, and a discharge connection for said
within ‘said chambered member to be actuated by
the liquid therein when the liquid is subjected
reservoir for delivering fluent material into said
driving member chamber.
‘
to centrifugal action, said clutch element being
rotatable with one of said members and driving
2. In a clutch, the combination of an outer
chambered clutchmember adapted to receive a 55 ly engageable with the other when so actuated, a
liquid and provided with peripheral discharge
casing into which said clutch member chamber
ports, an inner clutch member disposed within
discharges having a sump associated therewith, a
reservoir connected to said sump and connectable
said chambered member, clutch elements dis
to a source of vacuum whereby the liquid may be
posed within said chambered member to be
actuated by the liquid when the liquid is sub 60 transferred from said sump to said reservoir, said
reservoir being also veritable to the atmosphere,
jeoted to centrifugal action, said clutch elements
being rotatable with one of said members and
and a discharge connection for said reservoir to
clutchingly engageable with the other when so
said clutch member chamber, said discharge be
ing provided with a valve which remains closed
actuated, valves for said ports adapted to be
actuated to closed position by centrifugal force 65 when the reservoir is subject to vacuum and‘ is
opened by the weight of the liquid when the res
and to open when not subjected to such force, a
casing for said clutch members into which the
liquid is discharged when the valves are open hav
ing a sump associatedtherewith, a reservoir con
nected to said sump and connectable to a source
of vacuum whereby the liquid may be transferred
from said sump to said reservoir, said reservoir
being also ventable to the atmosphere,- and a
discharge connection for said reservoir to said
ervoir is vented to the atmosphere.
‘
'
‘
6. In a clutch, the combination of a clutch
member having a liquid chamber therein, said
chamber having a discharge valve adapted to be
actuated to closed position by centrifugal force
and to open when not subjected to such force, a
coacting clutch member disposed within said
chambered‘member, a clutch ‘element disposed
chambered clutch ‘member, said discharge being 75 Within said chambered member to be actuated by
2,404,822
the liquid therein when the liquid is subjected to
centrifugal action,.said clutch element being ,ro
tatable with one of said members and drivingly
member is rotating, a sump into which the dis
charged liquid is collected, a reservoir connected
to said sump, vacuum means for transferring
the liquid from said sump to said reservoir, and
casing into which said clutch memberchamber 5 means whereby said liquid is transferred from
discharges having .a sump associated therewith,
said reservoir to operative relation to said clutch
members and element by gravity.
a reservoir connected to said sump, air pressure
means for transferring liquid from said sump to
11. In a clutch, the combination of driving
said reservoir, and a discharge connection for
and driven clutch members, and a cooperating
10 liquid actuated clutch engaging element as
said reservoir to said clutch member chamber.
7. In a clutch, the combination of driving .and
sociated with said clutch members to be actuated
by centrifugal action resulting from the rotation
driven clutch members, one of said members hav
ing a liquid chamber therein, a liquid actuated
of the driving clutch element, means being pro
vided for discharging the liquid from cooperatingv
clutchengaging element operatively associated
vwith said clutch .members to be actuated by the 15 relation to the clutch members and clutch engag
liquid within said chamber when it is subjected
ing element when the driving member of the
to centrifugal force, a discharge valve for said liq
clutch is at rest and retaining it while the driv
ing clutch member is rotating, a sump in which
uid chamber actuated to closed position by the
the discharged liquid is collected, a reservoir
rotation of said clutch members, a non-rotatable
casing into which the liquid is discharged from 20 connected to said sump, variable pressure means
said chambered clutch member, said casing havfor transferring the liquid from said sump to said
ing a sump associated therewith to receive the
reservoir, and means whereby said liquid is trans
liquid, and variable airpressure means for trans
ferred from said reservoir to operative relation to
ferring the liquid from said sump to said cham
said clutchrmembers.
V
,
‘
25
bered clutch member. _
12. In a clutch, ‘the combination of driving
8. In a clutch, the combination of driving and
and driven clutch members, and a cooperating
driven clutch members, one of said members hav
liquid actuated clutch engaging element associ
ing a liquid chamber therein, a liquid actuated
ated with said clutch members to be actuated
clutch engaging element operatively associated,
by centrifugal action resulting from the rotation
with said clutch members to be actuated to clutch 30 of the driving clutch element, means being pro
engaging position ‘by the liquid Within said cham
vided for discharging the liquid from cooperating
ber when the liquid is subjected to centrifugal
relation to the :clutch members and clutch en
engageable with the other when so actuated, a
force, means for retaining liquid Within said
gaging element when the driving member of the
chamber while the liquid is subject to such cen
clutch is at rest and retaining it while the driv
trifugal force as to distribute it annularly within ,. ing clutch member is rotating, a sump into which
the chamber, a casing into which the liquid is dis
the discharged liquid is collected, and manually
charged from said chambered clutch member, a
controlled air pressure means for transferring
sump associated with said casing, and manually
the liquid from said sump to said clutch.
controlled means for transferring the liquid from
,13. In a clutch, the combination of driving
said sump to said chambered clutch member com 40 and driven clutch members, and a cooperating
prising a gaseous pressure medium.
liquid actuated clutch engaging element asso
9. In a clutch, thecombination of driving and
ciated with said clutch members to be actuated
driven clutch members, and a cooperating liquid
by centrifugal action resulting from‘ the rotation
actuated clutch engaging element associated with
of the driving clutch element, means being pro
said clutch members to be actuated by centrifu
-‘ vided for discharging the liquid from cooperating
gal action resulting from the rotation of the driv
relation to the clutch members and clutch en
ing clutch'element, means being provided for dis~
gaging element when the driving member of the
charging the liquid from cooperating relation to
clutch is at rest and retaining it while the driv
the clutch members and clutch engaging element
ing clutch member is rotating, a sump into which
when the driving member of the clutch is at rest
the discharged liquid is collected, a reservoir, air
and retaining it While the driving clutch mem
pressure means for transferring liquid from said
ber is rotating, a sump into which the discharged
sump to said reservoir, and connections where
liquid is collected, a reservoir connected to said
by liquid is delivered from said reservoir to the
sump and connectable to ‘a source of vacuum
driven clutch member.
whereby the liquid may be transferred from said 55
14. A clutch comprising a driving member, a
sump to said reservoir, said reservoir being .also
driven member, and a ?uid actuated element
ventable to the atmosphere, and a discharge con
operatively associated with said driving and
nection for said reservoir vto said chambered
driven members, the driving member being
clutch member, said discharge being provided
chambered to receive ?uid by which the ?uid
with a valve seated by the combined action of a 60 actuated clutch element is actuated when the
spring and vacuum Within ‘said reservoir, the
?uid is subjected to centrifugal force resulting
spring being ‘of insuflicient tension to seat ‘the
from the rotation of the driving member, said
valve against the weight of the liquid when the
driving member being provided with a ?uid dis
source of vacuum is cut off and the reservoir
charge normally open when the driving mem
65 ber is at rest or its rotation is below a prede
vented to the atmosphere.
10. In a clutch, the combination of driving
termined rate and closed when the rotation of
and driven clutch members, and a cooperating
said driving member exceeds such predetermined
liquid actuated clutch ‘engaging element associ
rate,‘ a sump receiving the ?uid discharged from
ated ‘with said clutch member to be actuated by
said driving member through a return check
centrifugal action resulting from the rotation of 70 valve, and a manually controlled means for. dis
the driving clutchelement. means being provided
placing ?uid in said sump for returning it to said
for discharging the liquid from cooperating :rela
driving member.
'
tion to the clutch members and clutch engaging
15. A clutch comprising a driving and driven
element when the driving member of the clutch
clutch members, the driving clutch member hav
is at .rest'and retaining it while the driving clutch 75 ing a ?uidchamber therein with a valved (111$.
2,404,822
.charge opening openwwhen the member is at
rest‘ and closed by centrifugal action resulting
from the rotation of said member above a pre
determined rate, a casing into which the ?uid
is discharged from said discharge opening, a
sump having a check valved drain connection
‘to said casing, a return connection for said sump
to said chambered clutch member, and means
for delivering air under pressure to said sump
for delivering ?uid therefrom to said chambered 10
clutch member.
.
16. A clutch comprising a driving and driven
clutch members, the driving clutch member hav
ing a ?uid chamber therein with a valved dis
10
‘turning the liquid from said sump to said cham
ber independently of the rotation of either of
said driving or driven clutch members.
1
20. In a clutch, the combination of driving and
driven clutch‘ members, one of which has a liquid
chamber therein, a discharge for said liquid
chamber which is closed by the rotation‘of the
clutch member having the liquid chamber, 3, cas
ing into which the liquid is discharged from said
chamber when the speed of the chambered clutch
member falls below a predetermined rate, a
clutch engaging element movably engaged with
one of said clutch members for rotation therewith
and actuated into engagement with the other
charge opening open when the member is at
clutch member by liquid within said chamber
‘rest and closed by centrifugal action resulting
when it is subject to centrifugal force, a sump
associated with said chambered clutch member
to receive the liquid therefrom, the sump being
from the rotation of said member above a pre
determined rate, a easing into which the ?uid
is discharged from said discharge‘ opening, a
' so positioned and of such capacity that the level
sump having a check valved drain connection 20 of the discharged liquid is below the clutch mem
to said casing, a return connection for said sump
bers, and means independent of the rotation of
said clutch members for returning the liquid from
to said chambered clutch member, and means
manually controlled for applying pressure to the
said‘sump to said chamber within said clutch
member.
?uid in said sump for returning ?uid to said
21. In a clutch, the combination of driving and
chambered clutch member.
‘
25
17. A clutch comprising driving and driven
driven clutch members, one of which has a liquid
chamber therein and a discharge for said liquid
clutch‘ members, the driving clutch member being
chambered to receive a ?uid and having a periph
chamber which is closed by the rotation of the
erally positioned ?uid discharge passage, valve
clutch member, a clutch engaging element mov
' means for said passage carried by said driving 30 ably engaged with one of said clutch members
for rotation therewith and actuated into engage
‘ clutch member and adapted to be closed by the
action of centrifugal force when the speed or
ment with‘ the other clutch member by liquid
within said chamber when it is subject to cen
rotation of the driving member is above a prede
‘ terminedrspeed and to open automatically when
trifugal force, a sump associated with said cham
the speed of rotation of the driving member is 35 bered clutch member to receive the liquid dis
below said predetermined speed, a sump for re
ceiving the discharged fluid, and manually con
charged therefrom, the sump being so positioned
and of such capacity that the level of the fully
discharged liquid is below the clutch members,
and manually controlled means independent of
trolled means for subjecting the ?uid in said
sump to air pressure for returning it to said
40 the rotation of said clutch members for returning
chambered clutch member.
the liquid from said sump to said chamber within
18. In a clutch, the combination of driving and
said clutch member.
‘ driven clutch members, one of said members hav
22. In a clutch, the combination of driving and
ing a liquid chamber therein, a discharge for said
driven clutch members, one of which has a liquid
liquid chamber which is closed by the rotation
of-the clutch member having the liquid chamber, 45 chamber therein and a discharge for said liquid
chamber which is closed by the rotation of the
a liquid actuated clutch engaging element op
clutch member, a clutch engaging element mov
eratively associated with and movable relative
ably engaged with one of said clutch members '
to both of said clutch members to be actuated
for rotation therewith and actuated into engage
to engaged position by the liquid within said
ment with the other clutch member by liquid
chamber when it is subject to centrifugal force,
within said chamber when it is subject to cen
a non-rotatable easing into which the liquid is
trifugal force, centrifugal force in the absence of
discharged from said chambered clutch member
liquid acting to move said clutch engaging ele
when the‘ speed thereof falls below a predeter
ment to clutch disengaging position, a sump as
mined rate, a sump associated with said casing
to receive the liquid therefrom, and means for 55 sociated with said chambered clutch member to
receive the liquid discharged therefrom, the sump
returning the liquid from said sump to said
being so positioned and of such capacity that the
chamber independently of the rotation thereof.
level of the fully discharged liquid is below the
_l9. In a clutch, the combination of driving and‘
clutch members, and means independent of the
‘ driven clutch members, one of said clutch-J mem
rotation of said clutch members for returning the
bers having a liquid chamber therein, a dis
liquid from said sump to‘ said chamber within
~ charge for said liquid chamber which is closed
said clutch member.
by ‘the rotation of said clutch member having
23. In a clutch, the combination of driving and
the liquid chamber therein, a clutch‘ engaging
driven clutch members, one of said members hav
elementpperatively associated with both of said
ing a chamber therein, said chamber being pro
clutch ‘members, said clutch engaging element
vided with a discharge which is closed by the
being movably associated with one of said clutch
rotation of said clutch member when its speed
members for rotation therewith and to be en
exceeds a predetermined rate, a liquid actuated
gaged with the other clutch member by liquid
clutch engaging member operatively associated
within said chamber when it is subject to such
centrifugal force, a non-rotatable easing into
with and movable relative to both of said clutch
which‘ the liquid is discharged from said cham
members and having driving engagement with
bered clutch member when the speed thereof
one of them for rotation therewith and actuated
falls below a predetermined rate, a sump asso
to engaged position with the other clutch mem
ciated with said casing to receive the liquid there
ber by liquid within the chamber when it is sub
from, and manually controlled means for re-“" ject to centrifugal force, a sump associated with
“2,404,822
" i1
said’ chambered‘lclutch member to receive liquid
eating with the reservoir, valve means for said
discharged‘ therefronr-Vand means for returning
passage means mounted on one of the members
' constructed and arranged to be maintained closed
~ the liquid from said sump‘ to said chamber inde
by the action of centrifugal force when the speed
members.
5 of rotation of the driving member is above a pre
. determinedv speed and to open automatically when
24. A clutch comprising driving and driven
the speed of rotation of the driving member is
clutch members, the driving clutch member hav
reduced to said predetermined speed, and means
ing a ?uid chamber therein and being provided
for‘ transferring liquid from the reservoir to said
' with an angular‘ discharge passage for said cham
liquid driving chamber including a piston mount
ber, the discharge end of the passage being di
pendently of the rotation of either of said clutch
rected rearwardly relative to the direction of ro
ed for movement in the reservoir, and a pipe con
tation of said driving clutch member whereby
the discharge of the ?uid under centrifugal force
resulting from the rotation of said member is
checked, a casing enclosing said driving clutch
nected with the reservoir anddischarging into
the interior of the clutch.
member and into which its said passage dis
charges, a valve provided with means acting to
automatically open it when the speed of rotation
of said driving clutch member falls below a pre
determined rate, said valve being closed by cenn
trifugal force and maintained in closed position
when thespeed of rotation in said chambered
clutch member exceeds such predetermined rate,
a sump for receiving the discharged fluid from
28. In combination with a mercury actuated
clutch wherein driving engagement between driv
ing and drivenmembers is established upon rota
tion of the driving member by mercury thrown
centrifugally outwardly into a driving chamber
formed in the driving member, walls forming pas
sage means leading from said chamber and com
municating with a, reservoir, means rendered op
erative by reducing the speed of rotation of the
driving member to a predetermined minimum
speed to drain mercury from said chamber into
said casing, and means for returning the dis- ~ said reservoir, and means for transferring mer
cury from the reservoir to said driving chamber.
charged ?uid to said chambered clutch member
29. In combination with a liquid actuated
independently of the rotation of either of said
clutch wherein driving engagement between driv
clutch members.
ing and driven members is established upon rota
25. In combination with a liquid actuated
clutch wherein driving engagement between driv 30 tion of one of the members by liquid thrown cen
trifugally outwardly into a liquid driving cham
ing and driven members is established upon ro~
ber formed in one of the members, walls forming
tation of one of the members by liquid thrown
centrifugally outwardly into a liquid driving
passage means leading from said chamber and
communicating with a reservoir, valve means for
chamber formed in one of the members, walls
forming passage means leading from said cham~
said passage means mounted on one of the mem
bers, means maintaining said valve means open
her and communicating with a reservoir, valve
when the clutch is at rest and until the speed of
means for said passage means mounted on one of
rotation of the driving member reaches a pre
the‘ members constructed and arranged to be
determined minimum speed, means operated by
maintained closed by the action of centrifugal
the action of centrifugal force when the speed of
force when the speed of rotation of the driving
member is above a predetermined minimum speed
rotation of the driving member is above said pre
and to open automatically when the speed of ro
determined minimum speed to close said valve
tation of the driving member is reduced to said
means and maintain the valve means closed while
‘ predetermined minimum speed, and means for
the driving member rotates at a speed'above said
transferring liquid from the reservoir to said liq
predetermined speed, and means for transferring
uiddriving chamber.
.liquid from the reservoir to said liquid driving
26. In combination with a liquid actuated
clutch wherein driving engagement between driv
ing and driven members is establishediupon ro
tation of one of the members by liquid thrown ,
chamber.
*
,
30. In a clutch, the combination of driving
and driven clutch members, one of said members
having a chamber therein, said chamber being
centrifugally' outwardly into a. liquid driving
provided with a discharge which is closed by the '
chamber'formed in one of the members, ‘an’ outer
rotation of said clutch member-When its speed
exceeds a predetermined rate, a liquid actuated
casing having‘a reservoir therein, means jour
naling the clutch in the casing, walls forming
passage means leading from said chamber and
communicating with the reservoir, valve means
clutch engaging member operatively associated
with and movable relative to both of said clutch
members and having driving engagement with '
for said passage means mounted on one of the
one of them for rotation therewith and actuated
members constructed and arranged to be main
tained closed by the action of centrifugal force
when the speed‘ of rotation of the driving member
to engaged position with the other clutch member
by liquid within the chamber when it is subject
to centrifugal force, a sump associated with said
chambered clutch member to receive liquid dis
charged therefrom, and means for'transferring
the liquid from said sump to said clutch member
is above a predetermined minimum speed and to
open automatically when the speed of' rotation
of the driving member is reduced to said prede
termined speed, and means for transferring liquid
chamber independently of the rotation, of either
from the reservoir directly to the interior of the 65 of said clutch members including a piston mount
clutch.
ed to be projected into said sump to displace
27. In combination with a liquid actuated
clutch wherein driving engagement between driv
ing vand driven members is established upon rota
liquid therein and a pipe connected to said sump
and discharging to said chamber.
_
31. In a clutch, the combination ofdriving and
tion of one of the‘members by liquid thrown cen 70 driven clutch members, one of said members hav
trifugally outwardly into a liquid driving cham
ing a chamber therein, said chamber being pro
ber formed’ in one of the members, an outer cas
vided with a discharge which is closed by the
ing having a reservoir therein, means journaling
rotation of said clutch member when its speed
the clutch in the casing, walls forming passage
exceeds a predetermined rate, a liquid'actuated
means leading from said chamber and communi 75 clutch engaging member operatively associated
.
'
2,404,822
13
with and movable relative to both of said clutch
members and having driving engagement with
one of them for rotation therewith and actuated
to engaged ‘position with the other clutch member
by liquid within the chamber when it is subject 5
to centrifugal force, a sump associated with said
14
chambered clutch member to receive liquid dis
charged therefrom comprising a displacement
plunger operatively associated with said sump,
said sump having a return pipe connection to said
chamber.
ADRIAN P. ADNEY.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 464 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа