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Патент USA US2123515

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July 12, 1938.
1..‘ H. MESSINGER, JR
" 2,123,515
ATTACHMENT FOR INTERNAL COMBUSTION ENGINES
Filed April 8, 1936
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INVENTOR_
I
HMessmger Jr
v.
July 12, 1938.
1.. H. MESSINGER, JR
2,123,515
ATTACHMENT FOR INTERNAL COMBUSTION ENGINES
Filed April 8, 1936 -
_2 Sheets-Sheet 2
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lNVENTOR'
lasz‘er f1? Mess/09a J7:
BY
Patented July 1a, 1938
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2,123,515
UNITED ‘STATES PATENT OFFICE
2.123.515 '
.
ATTACHMENT FOR INTERNAL ‘COMBUS
'
TION ENGINES
Lester H. Messlnger, Jr., Trumbull, Conn., as
signor to Messinger Devices, Incorporated,
Bridgeport, Conn., a corporation or Connecti
out
'
'
Application April 8, 1936, Serial No. 73,232
12 Claims. (Cl. 123-124)
This invention relates to new and useful im-
provements in internal combustion engine driven
motor- vehicles.
'
rod and accelerator pedal to their full line posi
tions when moved therefrom.
The mechanism thus far described may be
'
The objects and advantages of the invention either in the‘form shown-or may be of any other
5 will become apparent from a consideration of the desired or conventional construction. It is sim- 5
following detailed description taken in connection ply illustrated as a conventional arrangement in
with the accompanying drawings wherein a sat- order that the’construction and operation of the ~
islactory embodiment oi’ the invention is shown. -means of the invention may be fully described
However, it is to be understood that the invention
10 is not limited to the details disclosed but includes
all such variations and modi?cations as fall with-
in the spirit 0! the invention and the scope of
the appended claims.
In the drawings;._
15
Fig‘. 1 is a side elevational view illustrating an
embodiment of the invention as applied to an
automobile;
Fig. 2 is aview showing certain parts uncovered
and in their normal relative positions and the
20 view also shows the wiring diagram;
Fig. 3 is a view of the main control switch of
Fig. 2 in another position;
Fig. 4 is a view similar to Fig. 3 but showing the
parts of the maincontrol switch in yet another
25 position;
Bolted or otherwise secured in any desired posi
tion on the automobile as, for example, ,on_th'e 10
dash i0 is a housing 24 containing a'main switch- a
ing mechanism generally designated 25and a de
tailed description of the construction and opera-. V‘
tion 01’ which will later be given.
This switching mechanism amongst its other l5 .
functions controlsa circuit to coils 26 0! a sole
noid magnet mounted within ahousing 21 and
the cores of said coils are shown at 28 as being
Secured (See Flg- 6) t0 the Walls Of the housing
21 by means of screws 29. The coils 26 may be 20
held in place about thecores 28 by any suitable
means as. for example. by being driven thereon.
It is to'be understood that while the coils 26 are
shown as connected in series they may be 6011
nected in parallel.
25
Fig, 5 is a sectional view taken substantially
Housing 21 is connected with the intake mani
along the line 5-5 of Fig. 2;
_ fold it of the engine and in its lower portion the
Fig. 6 is a sectional view through the valve housing includes apcrt 3| through which air may
30
35
’
40
.
)
operating means of the invention;
"
F1; 7 1s a plan View of a, pressure operated,
be admitted directly to the manifold instead of
through the fuel supply, means or carburetor i3. 30
switch means employed; and
Fig, 8 is a. sectional view-through said switch
means.
Referring in detail to the drawings, in Fig. 1
Arranged in the Port 01‘ Opening 31 is a valve 32
the stem 33 Of which extends through the lower
end of the housing as clearly shown in Fig. 6
and the upper end Portion Ofwhleh extends into
is shown a portion of an automobile including a ' the Space between the ‘magnet cells 26.
35
dash in and the usual ?oor boards ii. In front '
To this upper portion of the stem there is
of the dash there is shown a portion of a, motor secured an armature“ adapted to be attracted
i2 to which fuel is fed as from a carburetor i3 by the electrc-masnets and when so attracted
through an intake manifold is, The supply Of adapted to turn the valve stem 33 and conse
fuel is controlled in the usual manner by a throt- quently the Valve 32 shifting the valve to Open 40
me valve |5 the Stem of which is shown at |5a position whereupon air will be admitted through
connected with an operating arm l5 extending to port 3' to the manifold M between the engine
each side of the stem and at one end connected and the carburetor‘. A spring 35 above the arm‘
with a spring n the tendency of which is to re_ ture 34 has one of its ends anchored to the hous
ing as at 36 and has its other end portion ‘4:.
turn the
throttle valve to closed position when‘ wrapped repeatedly around the upper end por
moved
therefrom
TodConnected
'8 the connection
with the other
beingend
formed
of theasarm
by I69' is
pma
50 '9 on the arm and an elongated ‘510i? 2" m the
> end of the rod. At its forward end this red It!
is pivotally connected with an accelerator or
throttle pedal 2|, and a coil spring 22 is anchored
38313233‘;
stant pressure
2112;381:1122}!
and the spring83kg:
tends
tipgigitii
to retain the
valve in closed position and to return it to such 50
position when moved therefrgm.
Mounted ‘on the housing 24 or otherwise suit
ably located are binding posts 31, 38, 39 and 40
at one end to the rod and at its other end to a ' respectively. These posts are insulated from the
55 stationary bracket 23 and serves to return the
housing and from one another. Within the hous- 65
2
8,188,818
ing is a shaft 4|. rotatably mounting a bushing
38 on which is pivotally mounted a plate-like
member 42 having up-tumed ears 48 pivotally
connecting it with the bushing. Also within the
housing and pivotally mounted on the bushing
88 is a second plate-like member or-an armature
44 bent or off-set intermediate its ends, as at 48
(see Figs. 3 and 4) and this off-set intermediate
portion embraces the bushing.
.
A member 48 has an end portion 41 extending
between and guided by the upper portions of the
ears 43 and extending over the off-set portion of
the member 44 and beyond one end of said mem
ber. Passing through the member 48 and an
end portion of the member 44 is a bolt 48 sur-f
rounded by a spring 48 constantly tending to
keep the member 48 against the‘member 44 but
permitting said members to be pressed apart as
shown in Fig. 3.
The member 48 carries a contact element.“
connected with the binding post 38 as by a wire
8' and the plate-like member 42 carries a con
tact element 82 connected with the binding post
48 as by a wire 53. Further member 42 carries
a contact member 84 connected with the binding
. post 88 as by a wire 85 and the armature mem
her 44 carries a contact member 88 connected
with the binding post 38 by a wire 81. Within
one end portion of the housing’ 24 there is ar
30 ranged an electro-magnet 88, the coil of which
is connected with the binding posts 31 and 38 by
wires 88 and 88.
A lead 8| connects the binding post -88 with
the positive side of a battery 82, which may be
the usual automobile battery, while a lead 88
connects binding post 48 with a binding post 84
on the housing 21. Binding post 84 is connected
with one of the coils 28 by a wire 88, the coils
being connected by a wire 86 while the lead from
the coils is shown at8'i connected with a bind
ing post 88 from which a lead 88 extends to a
ground. ‘From the binding post 38 a lead 18
extends to the ignition coil 1| of the automobile.
Binding post 81 is connected with a pressure
operated switch 12 by a wire 18 and a ground
connection for said switch is shown at 14. Switch
12 is shown in detail in Figs. '7 and 8 and the
relation of the switch to the engine is shown more
particularly in Fig. 1. This switch comprises
an outer casing in the ‘form of a cast metal cov
ering including a cup-like body portion 18 and a
closure portion 18.
Closure 18 carries a tubular extension "pro
Jecting into the body 18 and at, preferably four,
equally spaced points about its inner end such
extension is provided with recesses 18 each re
ceiving a small coil spring 18 and partially re
ceiving a plug 88 resting on or engaging said
springs and having sliding fit in the respective re
60 cesses.’ The wall 8| of the body has a tapped
opening 82 therein the purpose of which will
later be fully described. On its inner side such
wall is provided with spaced lugs 83. A bellows
84 is disposed in the body '18 and its inner end
wall 85 is normally against the lugs 88 while its
outer end portion is folded about and soldered
or otherwise secured to an annulus 88 clamped
between the open end‘ of the body and the clo
sure '18.
It is noted that the extension 11 of ‘the closure
together with the parts carried thereby are lo
cated within the bellows and therefor when the
closure is in place the interior of the bellows is
sealed with respect to the exterior thereof. The
springs 19 may keep the plugs 88 against the
inner wall of the bellows or Just short of such
wall in which later case the resiliency of the bel
lows will be depended on to keep its inner wall
against or in close relation to the lugs 88.
Threaded into the closure 18 and its tubular 6
extension TI is a plug 88 locked in place as by
a Jamb nut 88 and extending through such plug
88 is a long binding post 88 having a laminated
contact head 8| at its inner end. A nut 82 on
the outer end portion of the binding post 88 is 10
adapted to draw the head 8| toward the tubular
extension 11 whereby to clamp insulation 88
against the outer and inner ends of said extension
to insulate the post 98 therefrom. From Fig. 8
it will be clear that the contact head 8| is ar- 15
ranged in opposing relation to a contact 84 car
ried on the inner side of the end wall 88 of the
bellows, but thatthe bellows andthe springs 18
with their plugs 88 tend to keep such contacts
spaced apart. Lug 88 or other suitable means 20
may be provided for mounting the switch 12 in
the desired position. The lead wire ‘I3 is con
nected with the binding post 88 as by a clamp nut
98 on the binding post at-the outer side of the
nut 82.
25
Switch 12 (see Fig. 1) is connected to be respon
sive to the pressure of the water being circulated
in the cooling system of the engine |2. A water
pump 81 is driven from the engine as through
gears (not shown) and through a connection 88 30
draws water from the lower end of a radiator 89a.
Through a pipe line I88 the pump discharges into
the water jacket of the engine.
A nipple. |82
connects an elbow |8| with the tapped opening 82
in the switch body. Therefore the pressure of 35
the coolant being circulated by pump 91 is act
ing on the bellows and owing to the particular
hook-up shown the velocity pressure of the cool
ant is acting directly on the bellows.
It will be understood that the plate-like mem- 40.
bers 42 and 44 are mounted for pivotal move
ment together and separately about the shaft 4|,
such members moving with the bushing 88 about
the shaft. To one side of said shaft between
the plate-like members there is arranged a spring 45
I88 having one of its arms connected with each
of the members. The normal tendency of this
spring is to move said members apart and to
keep the contacts 88 and 82 separated. A spring
I84 is arranged between the other end portion of 50
member 42 and the bottom wall of the. housing.
24 and serves to prevent the members 42 and
44 pivoting freely around the shaft 4| in a direc- '
tion to bring the contact 88 into engagement with
the upper wall of the housing and to prevent the 55
contact 84 or an end portion of member 44 com
ing into engagement with the lower wall of the
housing.
'
Thespring I88 causes the off-set portion 48
of member 44 to press against the bushing 88 and 60
forcing downwardly on the member 42 causes
the upper ends of openings 43a of the ears.43 of
member 42 to bear downwardly, on the bushing.
Thus the spring causes the members 42 and 44
to lock themselves about the bushing 88. How- 65
ever, the bushing is free to turn about the shaft
4| so that at the proper times, as will later be
described, the members 42 and 44 may rock to
' gether or relatively about the shaft without un
due friction. If desired the openings 43a in the 70
cars 43 may be elongated as and for the purpose
set forth in my application Serial No. 13,019, filed
March 26th, 1935.
'
Extending through a wall of the housing 24
in allgnmentwith one end portion of the member 78
3
2,128,515
42 is a push rod or member I05 shown as in the
ing circulated then the bellows 64 will expand
form of a bolt. This push rod is slidable through
the wall of the housing and normally is disposed
carrying contact 94 away from contact 9| open- -
with its inner end in spaced relation'to the .mem
ber 42. A bell-crank I06 is arranged at the outer
side of the housing being pivoted at I01 and con
nected at one end of this bell-crank is a rod
I08, the said rod at its other end being connected
to the rod l8 at I09.
In operation the throttle lever 2| is depressed
10
in the usual manner against the action of the
‘spring 22 to open the throttle valve and the valve
32 in the air port 3| remains closed so that there
is no change in the normal operation of the cue
gine while it is under load or with open throttle.
As long as the engine is being operated at ‘a speed
su?lcient to cause the pump 91 to maintain, on
the ?uid being circulated, that degree of pressure
necessary to keep the bellows 84 compressed with
the contact 94 in engagement with the contact»
head 9| the electro-magnet 58 is energized from
the battery and is attracting the end portion of
the plate-like member 44 so that the switch parts
25
armature 44 will be released and will rock about
the pivot 4| in a direction to bring contact 56
into engagement with contact 54, thereby clos
ing the engine ignition. circuit, and carrying the
contact 50 out of engagement with contact 52
opening the circuit to the coils 26.
that is, with the ignition circuit open, the throttle
mechanism retarded and the valve 32 open, should
the throttle mechanism be advanced the bell
crank I06 will be carried away from the push rod
I05 and the latter will move out of the housing 24
permitting the parts to return to the positions in
which they are shown in Fig. 2. This return
movement of the parts will be accomplished by
the spring I04. It will be understood that when
the throttle is advanced the engine will be speeded
are held inthe positions in which .they are shown
the magnet is from ‘the battery 62 through line
again closing the circuit to the magnet 59.
in Fig. '2 provided the engine'is operating under .will be partly collapsed to bring the contact 94
load or with advanced throttle. The circuit of into engagement with the contact head 9|, thus
magnet through wire 59, binding post 31, wire ‘I3
to binding post 90 of the switch ‘I2 and the ground
wire ‘I4 of the switch.
'
It will be noted in Fig. 2 that the contacts 54
and 56 are in engagement and that the circuit
between the ignition means ‘II and the battery is
35 closed. Further, contacts 50 and 52 are sepa-'
rated so that the circuit to the coils 26 controlling
the air valve 32 is open and such valve is there
fore closed. If the throttle mechanism is now
10
‘ While the parts are in the positions of Fig. 3,
up so that the pump will be operating at in
creased speed and the pressure of the ?uid being
circulated will be raised whereby the bellows 94
‘ 6|, binding post 39, wire 60, from the coil of the
40
ing the circuit to the magnet 58. Such magnet
being deenergized the plate-like member or
25
When the throttle is retarded the speed of the ,
engine drops and should the engine drop to a
predetermined low speed (either while idling or 30
while operating slowly under load) the ?uid being
circulated by pump 91 will not be under su?icient
pressure to keep contacts 9| and 94 in engage;
ment so that the circuit to magnet 58 will be open -
and the magnet will not be energized. Under 35
such conditions retarding of the throttle lever
will shift the push rod I05 inwardly and the
entire switch mechanism 25 will rock about the
released or retarded while thevengine maintains ‘ shaft 4| into the position shown in Fig. 4. There
the predetermined speed as, for example, if the it will be noted that contacts 54 and 56 are in 40
automobile is coasting in gear and the engine is engagement so that the engine ignition circuit
operating above a predetermined speed as when
the vehicle wheels are driving the engine, the
bell-crank I06 engages and pushes the rod I05
inwardly and it engages an end portion of the
plate-like member 42 and rocks said member
about its pivot shaft 4| in opposition to the
spring I03.
'
is. closed but that-the contacts 50 and 52 are
spaced apart so that the circuit to the coils 26
of. the magnet controlling the valve 32 is open.
Therefore, the valve 32 will be closed and the 45
engine may idle in the usual manner.
Owing to the mounting of the contact carry
ing member 46 the push rod I05 may operate to
Since the plate-like member 44 is being held - rock the member 42 and bring the contact 52 into
against movement by the charged magnet 53 engagement with the contact 50 without applying
rocking of the member 42 will serve to separate
the contacts 54 and 56 to open the ignition cir
cuit and to bring contacts 50 and 52 into engage
ment closing the circuit to the coils 26 with the
result that the armature 34 is attracted and
against the action of spring 35 the valve 32 is
swung to open position. This admits air to the
manifold between the engine and the carburetor
and relieves any vacuum in the manifold.
The
60 air port 3| is large so as to admit su?icient air
to supply the engine requirements and therefore
fuel will not be drawn into the engine and ‘there
will be a free intake and exhaust of air by the
engine.
sufficient pressure to the armature or member 44
to force said member away from the magnet 58.
That is, when the contact 52 engages contact 50
it may push the same upward slightly tensioning
the‘ spring 49 which will yield as indicated in
Fig. 3.
From the foregoing it will be understood that
50
Li
with the disclosed means the valve 32 will open
whenever‘ the throttle lever 2| is retardedand
the engine is being driven at a speed su?icient 60
to have the pump 91 force the pressure of the
?uid it is' circulating up to the point necessary
to have the bellows collapsed to cause contact 94
to engage contact 9|.
Thus the valve may open
No appreciable amount of vacuum is needed to while the automobile is coasting in gear or when
65
take air into the engine through the port 3| and the throttle lever is advanced and suddenly re
the opening of the valve 32 gives a “free wheel ' leased as when shifting gears.
Obviously by loosening the jamb nut 89 and
ing” effect since the pistons of the engine do
adjusting the plug 88 the position of the con
not have to work against vacuum. As air, .sub
stantially free of fuel is drawn into the engine tact head 9| may be adjusted relative to the 70
when the valve 32 is open it will be clear that a contact 94 so that greater or less movement of
considerablesavings in fuel results.
,
'
Should the speed of the engine drop below that
necessary to operate the pump in a manner to
maintain the necessary pressure on the ?uid be
the bellows will be necessary to bring the con
tact 94 into engagement with the contact head
9|. It is preferred that the mentioned adjust
ment be such that the pressure of the ?uid being
75.
groans
' 4
circulated will act on the bellows _to cause contact
94 to engage contact 8| whenever the engine is
operating above idling speed and will be insu?i
cient for the stated purpose when the engine
idling.
'
speed contacts II and 94 separate and the valve
32 closes. Also such valve closes immediately the
10 throttle is advanced as this permits the push rod
I" to move outward or drop downward away
from the member 42. It will now be clear that
the device is automatic in its operation and re
quires no special attention on the part of the
15 operator and that the device will not cause stall
ing of the engine when the latter is operating at
‘
While the present device provides for the sav
ing of fuel as above noted attention is directed
20 to the fact that with the throttle closed and the
engine being driven by the vehicle at a speed
or speeds above idling speed, should the valve 32
be closed or not provided fuel would be drawn
into the engine and cracked on coming into con
25 tact with hot parts thereof and then discharged
in the form of obnoxious gases. With the pres
ent arrangement this is largely prevented.
It
is also noted that the coils 26 as well as the
coils 58 operate oil the battery and by a constant
30 voltage so that said coils do not have to be built
to withstand the ?uctuating voltages delivered
from the automobile generator. ‘
1. The combination in an internal combustion
engine, means?" including an electrically operated
The engine may idle :in the usual manner since
on the engine dropping below a predetermined
low speed.
Having thus set forth the nature of .my in
vention, what I claim is:—
*
.
The energizing of coils 26 and 58 by a con
stant current is very desirable‘so as to have a
35 constant magnetic pull and to obtain the con
valve for stopping the ?ow of fuel to the engine,
a constant voltage circuit to operate said valve,
means controlling said circuit, a second constant
voltage circuit included in said last means, and‘
other means controlled by the engine speed and
controlling the second mentioned circuit.
10
2. The combination with an internal combus
tion engine including a fuel supply means, an
air port to admit air to the engine independent
of the fuel supply means, an electrically operated
valve normally closing said airport and adapted 15
on being energized to open the port, a constant
voltage circuit to operate said valve, means con
trolling said circuit, a second constant voltage
circuit included in said last means, and other
means controlled by the engine speed and con 20
trolling the second mentioned circuit.
3. The combination with an internal combus
tion engine including a throttle lever, means
including an electrically operated valve for
stopping the ?ow of fuel to the engine, a con 25
stant voltage circuit to operate said valve, a
second constant voltage circuit, magnetic means
in the second constant voltage circuit and con
trolling the ,flrst constant voltage circuit, other
means controlled by engine speed and control 30
ling the second mentioned constant voltage cir
cuit, and means controlled by the position of said
throttle lever which also controls'said ?rst con
stant voltage circuit.
4. The combination with an internal combus 35
stant current it is necessary to have constant’ tion engine including a fuel supply means and a
voltage. Therefore in the present case the said throttle lever controlling said means, means in
coils are energized from the battery 62. While cluding an air port to admit air to the engine
' the pressure switch ‘I2 is described as responsive independent of the fuel supply means, an elec
to the pressure of the ?uid being circulated in trically operated valve normally closing said air
the engine cooling system it will be clear that port and adapted on being energized to open the 40
the pump might be the oil pump of the engine port, a constant voltage circuit to operate said
or might be a pump entirely distinct from .either valve,va second constant voltage circuit, mag
the water or oil pump of the automobile.
netic means in the second constant voltage cir
In connection with the operation of the device cuit and controlling the ?rst constant voltage
45
it will be noted in Fig. 3 that the magnet 58 is circuit, other means controlled by‘ the engine 45
energized and that the contacts 54 and it are speed and controlling the second mentioned con
spaced so that the ignition circuit is open and stant voltage circuit, and means controlled by
that the contacts 50 and 52 are in engagement so ' the position of said throttle lever which also con‘
50 that the circuit to the valve actuating coils 26 is trols said ?rst constant voltage circuit.
50
closed. Now if the pressure of the ?uid being
5. 'The combination in an internal combustion
circulated by the pump 91 drops below a prede
termined point the parts of switch 25 will move
into the relative positions of Fig. 4 and the
55 circuits will be reversed. That is, the ignition
circuit will be closed and the circuit to the coils
' 2i will be opened‘ so that the valve 32 will be
engine, a ?uid circulating pump actuated by said
engine, means including an electrically operated
valve for admitting air to the engine substan
tially to the exclusion of fuel, and means re
sponsive to the pressure of the ?uid being circu
lated which means controls a circuit to operate
closed and the engine will be idling._
said valve.
When the parts are positioned as in Fig. 4
should the pressure of the ?uid being circulated
be increased the circuits will again be reversed
as the parts will be drawn into the relative po
sitions in which they are shown in Fig. 3. While
6. The combination in an internal combustion
engine, a throttle lever, a fluid circulating pump 60
actuated by the engine, means including an elec
the parts are as shown in Fig.4 should the en
gine be speeded up without depressing the throt
tle lever as when the automobile starts down a
grade the ignition circuit would be opened and
the circuit to the coils 26 closed so that the valve
70 12 would be opened. However, should the throt
tle be advanced when the parts are positioned
as shown ‘in Fig. 4 the parts would shift into
the positions in which they are shown in Fig. 2
vand the valve 32 would be closed to have the
75 engine operate in the usual manner.
.
trically operated valve for stopping the ?ow of
fuel to the engine, a constant voltage circuit to
operate said valve, ~switching means controlled
by the position of said throttle lever and con 65
trolling said circuit, and means responsive to the
pressure of the fluid being circulated which
means also is adapted to render said switching
means operative and inoperative.
7. The combination in an internal combustion 70
engine including a. throttle lever, a ?uid circu
lating pump actuated by the engine, means in
cluding an electrically operated valve for ad
mitting air to the engine substantially to the
exclusion of fuel, a constant voltage circuit to 76
5
2,123,015
circuit, an electrically operated valve adapt
operate said valve, switching means controlled tion
ed to open on being'energized and admit air to
by the position of said throttle lever and con
engine substantially to the exclusion of fuel,
trolling said circuit, and means responsive to the the
pressure of the fluid being circulated which a ?uid circulating pump‘ actuated by the engine,
means also is adapted to render said switching means adapted to cause energizing of said valve
and disruption of said ignition circuit, and
means operative and inoperative.
means controlling said ?rst ‘mentioned means
8. The combination with an internal combus
tion engine including a fuel supply means and and responsive to the pressure of the ?uid be
an ignition circuit, an air port to admit air to ing circulated by said pump.
11. The combination with an internal combus 10
the
engine independent of the fuel supply means, tion
10
engine including a fuel supply and an igni
an electrically operated valve normally closing
said air port and adapted on being energized to tion circuit, an air port to admit air to the en
gine independent of the fuel supply, a valve nor
open the portfa ?uid circulating pump actuated mally
closing said airport, a ?uid circulating
by the engine, means adapted to cause energiz
pump actuated by the engine, means to cause
ing
of
said
valve
and
disruption
of
said
ignition
15
opening of said valve and disruption of said
circuit, and means responsive to the pressure of ignition circuit, and means controlling the ?rst
the ?uid being circulated which means controls .
mentioned means and responsive to the pressure
the second mentioned means when the engine is
of the ?uid being circulated by said pump.
being driven.
.
12. The combination with an internal combus 20
9.
The
combination
with
an
internal
combus
20
tion engine including a fuel'supply and an igni
tion engine including a fuel supply means and
circuit, means to cause stopping of the flow
an ignition circuit, an electrically operated valve tion
of fuel to the engine, a fluid circulating pump
adapted when energized to cause stopping of the '
flow of fuel to the engine, a ?uid circulating actuated by the engine, means to cause actua
tion of said ?rst means to stop the ?ow of fuel
25 pump actuated by the engine, means adapted to the engine and to cause disruption of said
to cause energizing of said valve and disruption
ignition circuit, and means responsive to the
of said ignition circuit, and means responsive to pressure of the fluid being circulated by said
the pressure of the ?uid being circulated which pump and controlling the second mentioned
means controls the second mentioned means
30 when the engine is being driven. ,
'
10. In combination with an internal combus
tion engine including a fuel, supply and an igni
30
means.
,
LESTER H. MESSINGER, JR.
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