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Патент USA US2404515

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July 2,3, 1946.
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|=1_ W_ MEYER
HYDRAULIC FLY' WHEEL
Filed June 16, 1944
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2,404,515
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2 Sheets-Sheet -1
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/A//E/vroß:
FRANK w. Mere/z,
Y.my 23, 1946.
F. w. .MEYERv
2,404,515
HYDRAULIC FLY WHEEL,
Filed June 1e, 1944`
2 sheets-sheet 2 '
Patented July 23, 1946
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2,404,515
UNITED- >STATES PATENT OFFICE
2,404,515
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HYDRAULIC FLYWHEEL
Frank W. Meyer, East St. Louis,«lll. .
Application June 1.6, 1944, Serial No. 540,719
2 Claims.
(Cl.~74-'572)
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This invention relates to hydraulic fly wheels.
An object of the invention is to provide an im
ported near the periphery instead of near the
proved hydraulic fly wheel having relatively thin
Fig. 5 is an enlarged sectional view showing
the relief valve and an expanding device for `in
creasing the aggregate cubical area of the interior
walls forming an annular chamber in the body
and around the hub of the wheel and arranged
hub of the fly wheel as in Fig. 1.
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of the fly Wheel, and thereby increasing the cubi
to be ñlled completely with liquid, and a hub at
cal content of liquid that may be retained therein.
tached to and supporting said thin walls of said
This application is a continuation in part of
body and formed with an annular compartment
therein provided with a port communicating with
my application Serial No. 447,173, filed June 15,
said chamber through which liquid may pass, 10
In each modification shown, the hubv of my
in combination with a valve device controlling
improved hydraulic fly Wheel comprises a body
an eñluent passage from said compartment which
I attached to a `driven rotary shaft 2 by a spline
will open to permit escape or discharge of liquid
3. The hub ends 4 are attached to the body I
whenV more liquid is delivered into the fly Wheel
under pressure than is required to lil1A the same, 15 by welding when said parts are composed of metal
and forming hermetic or leakproof joints.- The
and to provide an expansion device in communi
body I is hollow, having therein an annular com
cation with said chamber >which' will move under
partment 5, and a number of passages 6 from said
pressure of said liquid to ,permit an additional
compartment Ato the periphery of the hub..
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amount of liquid to be placed in said compart
Two relatively thin metallic radial Walls 1 and
ment and said chamber before said valve will 20
8 are rigidly attached to the ends of the hub I
open to'permit any discharge thereof.
by bolts 9. Said Walls 1 and 8 may also be welded
Another object of the invention is tov provide
an improved hydraulic ily wheel embodying the
_or otherwise attached to the ends of said hub
in order to form hermetic joints and prevent
structure mentioned and having a series of arcu
ate' vanes pivotally supported within the an 25 leakage of liquid from Within the fly wheel. The
walls 1 and 8 are of annular form, so that the
nular chamber for movement to positions ex
hub ends 4 may project through and beyond said
tending across said chamber and thereby prevent
walls, as shown (Fig. 2). The Wall 1 is formed
or’retard the movement or flow of liquid, par
with anV integral annular flange I0 abutting
ticularly when the speed of rotation of the fly
Wheel becomes suddenly reduced below the speed 30 against the edge of a complementary annular
flange II which is integral with the wall 8. The
of movement of said liquid in said chamber.
1942.
Another object of the invention is to provide
an expanding device for increasing the aggregate
cubical area within said chamber and said corn
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flanges I0 and II extend toward and into abut- ì
ting contact with each other. One of said ñanges
is formed with an integral annular bead I2 over
lappingand attached to the inner margin ofthe
35
other flange by welding or otherwise to form a
tent of liquid that may be retained therein be
leakproof and hermetic joint. The direct integral
fore any discharge of liquid is eifected through a
attachment of the lianges I0 and I I to each other
valve device provided for that purpose..
by welding or the like positively prevents the
Other objects will appear from the following
1 and 8 from spreading apart at their pe
description, reference being made to the annexed 40 walls
riphery and thus prevents leakage of any of the
drawings, in which-~
liquid content of the ily Wheel between the ñanges
Fig. 1- is a cross-sectional view transversely of
I0 and II. The hub'l, the, walls 'I and 8, and
the axis of my improved ily wheel on the line
'the flanges I0 and I I cooperate to form an annu
I-I ofA Fig. 2, showing a modification in which
lar chamber I3 in the fly wheel. The chamber
the vanes are pivotally supported near the hub. 45 I3 has direct communication with the compart
Fig. v2 is a longitudinal sectional view through
ment 5 through ports -6 through which liquid may
and parallel with the axis of my improved fly
pass freely from the chamber I3 into the com
wheel on the line 2_2 of Fig. 1.
partment 5, and -vice versa.
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partment and thereby increasing the cubical con
Fig. 3 is a side elevation showing a preferred
construction of the hub of my improved hydraulic
ily Wheel in the modiñcation of Figs. 1 and 2.
Fig.»4- is a eros-sectional view transversely of
the axisfshowing» a modification of my improved
lly’wheelvin -which the vvanes are pivotally sup 55
In the-modification shown in Fig. 1, a vane I4
is pivoted on each bolt 9 for inward and outward
swinging movements. These vanes preferably
have a curvature nearly concentric with'the-` pe
riphery of the hub `I and with the axis Vof the
shaft-2'; Said vanes'may’swing from `positions
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of said cylinder. In order to provide a leakproof
joint between the cylinder 23 and the piston 26,
adjacent to the periphery of the hub I, as shown
by solid lines at the top and at the left of Fig. 1,
to outwardly extended positions in'which the free
any known or appropriate gasket or sealing de
vice (not shown) may be provided on said piston.
The inner end of the cylinder 23 supports an
abutment 2'I for limiting inward movement of the
piston 26 and leaving said piston free for outward
movement. A spring 28 is mounted within the
cylinder 23 between the end wall 25 and the pis
ends of said vanes engage or are close to the in
ner periphery of the flanges I0-I I or the ribfIZ,
as shown by solid lines at the bottom of Fig. 1
and bysolid lines at the top. When the ily wheel
is stationary, these vanes may move freely to the
position to which they are impelled by gravity, as
shown by solid llines in: Fig, l. Thus, the varies 10 ton 26,1and yieldinglyholds said piston` Yagainst
the abutment `2`I.` The spring 2I is much stronger
which are impelled by gravity to positions in
than the spring 28 and will only yield under pre
which they extend across the chamber I3 will
determined pressure largely in excess of that re
remain or will move Ydownwardly to the positions'quired to operate the spring 28 but less than that
in which two of said vanes are shown at the lower
side of Fig. 1. ‘I'he other vanes will be impelled 15 required to damage, distort or burst the walls 'IY
and 8 of-v theV fly- wheel. When the pressure in the
by gravity to positions adjacent tothe periphery
ofthe hub I. When the fly wheel'is started, the » fly wheel increases by increase in the volume of
the cubical content of the liquid therein from any
liquid therein may be caused to rotate or move
cause, the piston 26will be moved outwardly in
' with the vfly wheel. In order to permit passage
of liquid under the vanes lI 4 and prevent adhesion 20 the cylinder 23 to increase the aggregate cubical
content within the flyfrwheel and compensate for`
. of said varies totheperiphery of the hubjwhile
increase in the volumeofwthe cubical contentA Vof
the liquid therein. Continued increase' ofnthe
pressure in the fly wheel beyond a» predetermined
hub I'.
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As vshown in Fig. 5, a. device is provided'to per 25 maximum, that is, when the-pressure in thejiiy
wheel becomes excessive, the valve 28v willïbe
mitpdischarge of> liquid >fromthe fly wheel when
opened by such- pressure and permit outiiow‘rof
the pressure of the liquidV contained therein .ap
a part of the liquid from the iiy wheel; This oc.-`
proximates, but is less than thepressure required
curs before the pressure causes damageto,> or
to distort orburst the fly, wheel. Said device
comprises a valve cage I6 detachably secured in 30 bursting or distortion of the> wheel, Thepiston 26
impelled by the springV 28 functionsV to eject or
the Vcompartment 5 and having a valve seat I'I
cause outflow >of a part of the liquid when the
mounted' in'` its innerend and formed with a port
valve 20 is opened as described. » That Yis,- the
I8 in communication with the lcompartment 5,
Aspring 28 moves the pistonlö towardßthe'abut-y
and alsofhaving'a port`V lggformedin its outer end.
Said* device also- comprisesV aY valve 20 » mountedy 35 ment 2_1 as the amount Vof liquid in the ñy wheel »
in. the/cage* I6 for movement to and from the
In the modiñcationlshcwn inA Fig. Ltime venes l
valve seat I'I,~and1yieldingly held: against »said
Iii arepomitted land. vanes 29 are substituted Y
valve'seat by a spring 1ZI mounted inthe valve
therefor. The said?vanes 28 are Vmounted on 'pive
cage betwreen‘thev valveZß and anrannular flange
22 in theïouter'endv of said cage. The spri-ng’ZI 40 ots 3B supported by the wallsm'lv and‘gß parallel with
the axis of the shaft »2 and adjacent'tozthe flanges.
will yield Vunder predetermined pressure less _than
IQ and Il. The freeends iofthevanes 294may`
that required to distort or :burst the walls 'I and‘ß
move Vinto contact with the periphery ofitheîhub
ofthe fly wheel. When-*the pressure of the liquid
l whenr the fly wheel' is rotating in the direction
inthe ily> wheellbecomes'excessive or increases
beyond the desired maxi-mum less thanrthe pres 45 of the arrow 3i, asshown; in Figui: Whenithefñy.
leaving said varies freely movable„a number of
grooves I5 are formed in the periphery of the
diminishes.
thefvalve 20 will move said valve to open position j
awayd?rom the valve seat I‘IV in- opposition to the
spring* 2I, thereby opening the port I8 and per
mating outflow of a part of the liquid from withinl
the iiygwheel. When the volumeand pressurevofv
Vtheliquid in the ily wheel becomes reduced in this
>manner belowthe predetermined, maximum; the
springfll will automatically move'theV valve 2a 55
preventing outflow of any further amount of liq
uid from the ñy wheel.'VV
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wheel is at rest, the varies ZSvmay.` move freely
on their pivotsäiû just- as=the vanes I4-^move freely
ouV their pivots 9; In this: modificationI ofthe ¿in
suretthat will ‘distort or- burst the walls 1 and 8,
such pressureacting-againstthe inner sidev of
against the seat I'I, thereby closing. saidvalve and
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vention, the grooves .I5"are'omit'ted.»` Otherwise;VV
the ñy wheel of Fig. .4 'embodies all.- of! the ¿par-ts
before described,'and vlike reference numeráj-ls'r'are
applied tofsaid'parts, as in the Yfirst'modification.
After the fly wheel" of ’eitherinodificationfhas'
been assembled, the chamber I3,- p'orts‘ï ‘B2i andV
compartment 5 are completely'ñlledïfwithï'liquid
throught an inlet lport provi'ded'vfo'r thatY purpose;
Two such; ports are shown in: Fig.fï2,`~ and' each`r is
provided vwith-_a removable andëreplaceable‘îplug
A deviceY forY varying the .aggregatel cubical
32 which may be screwedv intoits portlandfthem
area >of the» compartment 5 and chamber I3.; in 60 may be welded or otherwise-'sealed when: secured
clu'ding the ports iiyforms apart of ’either modifi-f
in position to provide leakproofi ~and hermetic
cation >of my_»invention Said device operates'to
joints. VWhen the'ñy’whe'el is-to bel intiallyfiill'ed
increase saidag'gregate cubical area. As shown in
with liquid, at least one, and; preferably both, of
Fig..5, a cylinder 23 is detachably mountedin one
the plugs 32 are removed to admit liquid‘int-o said
end of; the _hub I and~ opens into thefcompart-> 65
chamber and permit air 4to pass therefrom;` After
ment 5.y Preferably, `for balancing .purposes the
Y T V*cylinder 23 is in the oppositel end Vofthe hub4 I
from theïvalve devicefthat permits discharge-of
' liquid from the iiy Vwheelunder conditions of ex
cessive pressure Vlerssrthan Vthe'pressurefthatV will
distort or burst the wheel, The cylinder 23V has
anY open inner end, and has Ya: port 24 thro'uglfiY its
outer end wall=25.- A» piston 2t 'mounted for
Vthe iiy wheel is completelyñlledwith liquid„„that
is, after> the chamber I3,- compartment 5, and '
ports'ö -are completelyñlled with-said'liquìdafthe Y
plugsr 36 are securedV in> positienetol closeY their
respective ports inî order tio- form v`lealqímooff.and
Y hermetic joints. Completefflll-ing of- the ily. wheel
’sliding movements' withinV Ythey cylinder 23 andY
with- liquid in the manner described, includinggthe
chamber I 3, compartment -äìfand-ïportsïïàwill not
Vforms aleakproof- joint >with theV inner peripheryl
move ` the , piston- -1 26,» v¿but «will ïleave «salda piston
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against the abutment 21 for operation as above
described.
It should now be apparent that this invention
attains all of its intended ob-jects and purposes in
liquid therefrom under pressure greater than the
pressure that operates said expanding device.
a desirable manner.
It saves a considerable
driven rotary shaft for rotation thereby and Walls
amount of metal and provides a. ñy wheel that
can practicably be dismantled or separated for
purposes of repair or replacement of parts, or for
other needed purposes. The construction of the
device may be varied otherwise than in the par
attached to the ends of said hub forming an an
nular chamber about the hub adapted to receive
a quantity of liquid, the improvement compris
ing a compartment Within the hub, ports from
said compartment tothe chamber, a valve regu
of liquid in said compartment for discharging
2. In a fly Wheel having a hub attached to a
iI
ticulars speciñcally mentioned and shown with
lating discharge of liquid from said compartment,
out departure from the nature and principle of '
a spring for holding said valve closed and yield
ing by pressure of liquid against said valve to dis
the invention.
I claim:
,f
1. In a fly wheel having a hub attached toa
charge liquid from said compartment under
pressure less than the pressure required .to dis
tort said walls, an expanding device for increas
ing the aggregate cubical area within said com
partment operating under pressure of liquidV
driven rotary shaft for rotation thereby and walls
attached to the ends of said hub forming an an
nular chamber about the hub adapted to receive
a quantity of liquid, the improvement compris
therein, and a spring yieldingly kholding said de
ing an annular compartment in the hub, ports 20 vice in position for operation by pressure of said
liquid and arranged to yield under less ipressure
opening from said compartment to the periphery
of said liquid than the îpressure required to
of the hub, an expanding device for increasing
operate said ñrst springand open said valve.
the aggregate cubical area within said compart
FRANK W. MEYER.
ment operating under pressure of liquid there
in, and al valve device operating under pressure 25
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