GB1565507A – Control device for a fuel pump of a vehicle engine
– Google Patents
GB1565507A – Control device for a fuel pump of a vehicle engine
– Google Patents
Control device for a fuel pump of a vehicle engine
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Publication number
GB1565507A
GB1565507A
GB4559975A
GB4559975A
GB1565507A
GB 1565507 A
GB1565507 A
GB 1565507A
GB 4559975 A
GB4559975 A
GB 4559975A
GB 4559975 A
GB4559975 A
GB 4559975A
GB 1565507 A
GB1565507 A
GB 1565507A
Authority
GB
United Kingdom
Prior art keywords
lever
movement
fuel
engine
solenoid
Prior art date
1975-11-01
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4559975A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1975-11-01
Filing date
1975-11-01
Publication date
1980-04-23
1975-11-01
Application filed by Lucas Industries Ltd
filed
Critical
Lucas Industries Ltd
1975-11-01
Priority to GB4559975A
priority
Critical
patent/GB1565507A/en
1976-10-29
Priority to FR7632913A
priority
patent/FR2329863A1/en
1980-04-23
Publication of GB1565507A
publication
Critical
patent/GB1565507A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 – F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 – F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
B60K26/04—Arrangements or mounting of propulsion unit control devices in vehicles of means connecting initiating means or elements to propulsion unit
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02D—CONTROLLING COMBUSTION ENGINES
F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
Description
(54) CONTROL DEVICE FOR A FUEL PUMP OF A VEHICLE ENGINE
(71) We, LUCAS INDUSTRIES LIMITED, a
British Company of Great King Street,
Birmingham, B19 2XF, do hereby declare the invention for which we pray that a patent maybe granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to a control device for controlling the operation of the fuel pump of a vehicle engine and has for its object to provide such a device in a simple and convenient form.
According to the invention, a control device for controlling the operation of the fuel pump of a vehicle engine comrpises a support member, a first lever pivotally mounted on the support member said first lever being movable by an actuating member coupled thereto, a second lever, said second lever being pivotally mounted on a first slidable member carried by and slidable with support to said support member, said second lever having pivotal connection with a second slidable member carried by and slidable with respect to said support member, an output member coupled to said second slidable member, a solenoid carried by said support member, a pair of armatures mounted on said slidable members respectively and abutment means mounted on one of said levers and engageable with its other of said levers whereby when said solenoid is energised the first slidable member will be held against movement by the solenoid and movement of said actuating member in one direction will cause said second lever to pivot about its connection with the first slidable member, thereby moving the second slidable member to a position in which its armature is retained by the solenoid, said actuating member then being movable in the opposite direction without movement of the second lever and second slidable member.
One example of a control device in accordance with the invention will now be described with reference to the accompanying drawing, which shows the device in side elevation.
Referring to the drawing, thedeviceincludes a support member 10. Mounted on the support member is a first lever 11 this being mounted about a pivot 12 disposed at one end of the lever. The first lever is movable angularly in one direction by an actuating member 13 which engages an abutment 14 in the form of a pin mounted at the opposite end of the lever to the pivot 12. The actuating member 13 is defined by a plate which serves as an abutment for a coiled compression spring 15 the other end of which is located by an abutment 16 secured to the inner member 17 of a
Bowden cable. The outer member of the
Bowden cable is divided, the presented ends being secured within clamps 18 secured to the support member 10. Moreover, the inner member 17 of the cable passes through an aperture in the abutment 14 and conveniently the inner member carries a further abutment
19 whereby the coiled compression spring 15 can be preloaded.
The support member 10 carries a pair of slidable members the first of which is referenced 20 and the second of which is referenced 21. Each slidable member has located at one end, an armature 22 for co-operation with the outer and part of the central limb of an core 23 of a solenoid 24. The slidable member 20 is biased by means of a coiled compression spring 25, to a position in which the armature 22 mounted on the member 20 is in engagement with the core 23.
The second slidable member 21 is biased by means exterior of the device conveniently a coiled tension spring illustrated at 26, to a position in which its armature 22 is spaced from the core 23.
Also provided is a second lever 27 which is pivotally mounted intermediate its ends, on the first slidable member 20 and is also pivot- ally connected at one of its ends, to the second slidable member 21. The opposite end of the second lever 27 is engageable by an abutmentmeans in the form of a peg 28 carried by the first lever.
The inner member 17 of the Bowden cable forms the connection between the throttle pedal of a vehicle and the fuel quantity controller of the fuel injection pump and movement of the inner member 17 in the direction of the arrow results in an increase in the quantity of fuel supplied to the engine. The member 17 is shown in the position of minimum fuel. The second slidable member 21 is coupled by means of a further Bowden cable 29 to a stop lever 30 of the fuel pump. The position of the stop lever 30 in the drawing corresponds to the «no fuel» position and in order for the pump to supply fuel, the lever 30 must be moved in the clockwise direction against the action of the spring 26. The winding of the solenoid 24 is arranged to be energised from the vehicle electrical system upon closure of the master switch which also controls the supply of power to the vehicle electrical accessories.
When the solenoid is energised the armature 22 on the member 20 will be held against the core as shown in the drawing, and movement of the throttle pedal of the vehicle in a direction to increase the amount of fuel supplied to the engine, will cause the peg 28 to engage the lever 27 resulting in pivotal movement of the lever about its pivot with the member 20. Such pivotal movement will result in movement of the member 21 towards the left as seen in the drawing and corresponding movement of the stop control lever will take place. The member 21 will when the armature engages the core 23, be retained in this position, by the solenoid. In this position, therefore, the stop lever 30 has been moved to a position in which fuel can be supplied by the pump and the operator can then release the throttle pedal which will result in movement of the lever 11 towards the position in which it is shown. No movement of the lever 27 will take place. If, in use, the throttle pedal is depressed fully then the spring 15 will be compressed when the movement of the first lever 11 is arrested by the second lever 27.
When the operator of the vehicle requires to stop the engine then the master switch is opened and the solenoid de-energised. The armatures are then no longer held by the core and the member 21 is moved by the action of the spring 26 to the position in which it is shown, the stop lever being moved thereby to cut off the supply of fuel to the engine. Such movement can take place irrespective of the setting of the throttle pedal since even if the throttle is set to demand maximum fuel, the force exerted by the spring 26 will be sufficient to overcome the force exerted by the spring 25 and both members 20 and 21 will be moved towards the right as seen in the drawing. If an attempt is made to start the engine without energising the solenoid then upon depressing the throttle pedal the member 20 will merely be moved against the action of the spring 25 and no movement of the member 21 will occur so that the stop control lever will remain in the position shown.
The device can be used to provide protection for the engine by connecting in series with the winding of the solenoid, sensing devices which become open circuit when various engine operating parameters are exceeded.
Moreover, in order to provide for smoother shut-down of the engine, the Bowden cable 29 may be arranged to operate a butterfly valve in the inlet manifold of the engine, the butterfly valve being closed when the stop lever is moved to cut off the supply of fuel to the engine.
WHAT WE CLAIM IS:
1. A control device for controlling the operation of the fuel pump of a vehicle engine comprising a support member, a first lever pivotally mounted on the support member said first lever being movable by an actuating member coupled thereto, a second lever, said second lever being pivotally mounted on a first slidable member carried by and slidable with respect to said support member, said second lever having pivotal connection with a second slidable member carried by and slidable with respect to said support member, an output member coupled to said second slidable member, a solenoid carried by said support member, a pair of armatures mounted on said slidable members respectively and abutment means mounted on one of said levers and engageable with the other of said levers whereby when said solenoid is energised the first slidable member will be held against movement by the solenoid and movement of said actuating member in one direction will cause said second lever to pivot about its connection with the first slidable member, thereby moving the second slidable member to a position in which its armature is retained by the solenoid, said actuating member then being movable in the opposite direction without movement of the second lever and second slidable member.
2. A device according to claim 1 in which said actuating member is operatively coupled to the inner member of a Bowden cable.
3. A device according to claim 2 including a coiled compression spring acting intermediate the actuating member and a member rigidly secured to the inner member of said cable, said spring acting to transmit from the inner member of the cable, movement of the actuating member in said one direction.
4. A device according to any one of the preceding claims in which said abutment means comprises a peg secured to said second lever.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
**WARNING** start of CLMS field may overlap end of DESC **. of the second lever 27 is engageable by an abutmentmeans in the form of a peg 28 carried by the first lever. The inner member 17 of the Bowden cable forms the connection between the throttle pedal of a vehicle and the fuel quantity controller of the fuel injection pump and movement of the inner member 17 in the direction of the arrow results in an increase in the quantity of fuel supplied to the engine. The member 17 is shown in the position of minimum fuel. The second slidable member 21 is coupled by means of a further Bowden cable 29 to a stop lever 30 of the fuel pump. The position of the stop lever 30 in the drawing corresponds to the «no fuel» position and in order for the pump to supply fuel, the lever 30 must be moved in the clockwise direction against the action of the spring 26. The winding of the solenoid 24 is arranged to be energised from the vehicle electrical system upon closure of the master switch which also controls the supply of power to the vehicle electrical accessories. When the solenoid is energised the armature 22 on the member 20 will be held against the core as shown in the drawing, and movement of the throttle pedal of the vehicle in a direction to increase the amount of fuel supplied to the engine, will cause the peg 28 to engage the lever 27 resulting in pivotal movement of the lever about its pivot with the member 20. Such pivotal movement will result in movement of the member 21 towards the left as seen in the drawing and corresponding movement of the stop control lever will take place. The member 21 will when the armature engages the core 23, be retained in this position, by the solenoid. In this position, therefore, the stop lever 30 has been moved to a position in which fuel can be supplied by the pump and the operator can then release the throttle pedal which will result in movement of the lever 11 towards the position in which it is shown. No movement of the lever 27 will take place. If, in use, the throttle pedal is depressed fully then the spring 15 will be compressed when the movement of the first lever 11 is arrested by the second lever 27. When the operator of the vehicle requires to stop the engine then the master switch is opened and the solenoid de-energised. The armatures are then no longer held by the core and the member 21 is moved by the action of the spring 26 to the position in which it is shown, the stop lever being moved thereby to cut off the supply of fuel to the engine. Such movement can take place irrespective of the setting of the throttle pedal since even if the throttle is set to demand maximum fuel, the force exerted by the spring 26 will be sufficient to overcome the force exerted by the spring 25 and both members 20 and 21 will be moved towards the right as seen in the drawing. If an attempt is made to start the engine without energising the solenoid then upon depressing the throttle pedal the member 20 will merely be moved against the action of the spring 25 and no movement of the member 21 will occur so that the stop control lever will remain in the position shown. The device can be used to provide protection for the engine by connecting in series with the winding of the solenoid, sensing devices which become open circuit when various engine operating parameters are exceeded. Moreover, in order to provide for smoother shut-down of the engine, the Bowden cable 29 may be arranged to operate a butterfly valve in the inlet manifold of the engine, the butterfly valve being closed when the stop lever is moved to cut off the supply of fuel to the engine. WHAT WE CLAIM IS:
1. A control device for controlling the operation of the fuel pump of a vehicle engine comprising a support member, a first lever pivotally mounted on the support member said first lever being movable by an actuating member coupled thereto, a second lever, said second lever being pivotally mounted on a first slidable member carried by and slidable with respect to said support member, said second lever having pivotal connection with a second slidable member carried by and slidable with respect to said support member, an output member coupled to said second slidable member, a solenoid carried by said support member, a pair of armatures mounted on said slidable members respectively and abutment means mounted on one of said levers and engageable with the other of said levers whereby when said solenoid is energised the first slidable member will be held against movement by the solenoid and movement of said actuating member in one direction will cause said second lever to pivot about its connection with the first slidable member, thereby moving the second slidable member to a position in which its armature is retained by the solenoid, said actuating member then being movable in the opposite direction without movement of the second lever and second slidable member.
2. A device according to claim 1 in which said actuating member is operatively coupled to the inner member of a Bowden cable.
3. A device according to claim 2 including a coiled compression spring acting intermediate the actuating member and a member rigidly secured to the inner member of said cable, said spring acting to transmit from the inner member of the cable, movement of the actuating member in said one direction.
4. A device according to any one of the preceding claims in which said abutment means comprises a peg secured to said second lever.
5. A device according to any one of the
preceding claims in which said solenoid includes an «E» core, each armature cooperating with an outer limb and a part of the central limb of the core.
6. A device according to claim 5 including resilient means biasing said second slid able member in a direction away from said solen
oid.
7. A control device for controlling the operation of the fuel pump of a vehicle engine comprising the combination and arrangement of parts substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
GB4559975A
1975-11-01
1975-11-01
Control device for a fuel pump of a vehicle engine
Expired
GB1565507A
(en)
Priority Applications (2)
Application Number
Priority Date
Filing Date
Title
GB4559975A
GB1565507A
(en)
1975-11-01
1975-11-01
Control device for a fuel pump of a vehicle engine
FR7632913A
FR2329863A1
(en)
1975-11-01
1976-10-29
FUEL PUMP CONTROL DEVICE
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4559975A
GB1565507A
(en)
1975-11-01
1975-11-01
Control device for a fuel pump of a vehicle engine
Publications (1)
Publication Number
Publication Date
GB1565507A
true
GB1565507A
(en)
1980-04-23
Family
ID=10437836
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4559975A
Expired
GB1565507A
(en)
1975-11-01
1975-11-01
Control device for a fuel pump of a vehicle engine
Country Status (2)
Country
Link
FR
(1)
FR2329863A1
(en)
GB
(1)
GB1565507A
(en)
1975
1975-11-01
GB
GB4559975A
patent/GB1565507A/en
not_active
Expired
1976
1976-10-29
FR
FR7632913A
patent/FR2329863A1/en
active
Granted
Also Published As
Publication number
Publication date
FR2329863B1
(en)
1979-02-23
FR2329863A1
(en)
1977-05-27
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Legal Events
Date
Code
Title
Description
1981-01-07
CSNS
Application of which complete specification have been accepted and published, but patent is not sealed
