EP0375523B1 - Actionneur de levier de pompe d'injection - Google Patents

Actionneur de levier de pompe d'injection Download PDF

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Publication number
EP0375523B1
EP0375523B1 EP89403503A EP89403503A EP0375523B1 EP 0375523 B1 EP0375523 B1 EP 0375523B1 EP 89403503 A EP89403503 A EP 89403503A EP 89403503 A EP89403503 A EP 89403503A EP 0375523 B1 EP0375523 B1 EP 0375523B1
Authority
EP
European Patent Office
Prior art keywords
lever
injection pump
jack
pump
injection
Prior art date
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 - Lifetime
Application number
EP89403503A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0375523A1 (fr
Inventor
Michel Douillet
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.)
Renault Trucks SAS
Original Assignee
Renault Vehicules Industriels SA
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.)
Filing date
Publication date
Application filed by Renault Vehicules Industriels SA filed Critical Renault Vehicules Industriels SA
Publication of EP0375523A1 publication Critical patent/EP0375523A1/fr
Application granted granted Critical
Publication of EP0375523B1 publication Critical patent/EP0375523B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
    • F02D1/12—Transmission of control impulse to pump control, e.g. with power drive or power assistance non-mechanical, e.g. hydraulic
    • 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
    • F02M63/022—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 by acting on fuel control mechanism

Definitions

  • the present invention relates to the field of injection. It relates more particularly to an injection pump lever actuator, for example a cut-off device for an in-line injection pump intended to equip a diesel engine.
  • the object of the invention is to provide the simplest possible mounting of this system for actuating an injection pump lever, while presenting increased reliability and reduced implementation cost.
  • GB-A-2029512 describes a device for mounting an injection pump lever actuator which device is integrated into this pump.
  • the injection pump lever actuator is fixed to the pump body, integral with the lever, on a machined boss of the pump body.
  • connection between the actuator and the lever being permanent.
  • an in-line injection pump 0 is provided with a conventional device for mounting a jack 10 used to actuate a stop lever 11 by means of a support 8 made of sheet metal and of a sheet metal adapter piece 9. This part 9 is used to maintain contact between the jack 10 and the lever 11, by the very non-modifiable design of this pump equipped with this lever.
  • the cylinder 1 is fixed directly to a boss 12 of the body of the injection pump O by a 13 of its ends. This fixing is carried out by means of a silent block 2 mounted hard in the rear bearing of the jack 1.
  • a fixing screw 7 immobilizes the ring 15 and the spacer 3 against the boss 12.
  • the elasticity of the silentbloc 2 allows the angular movement of the jack 1 generated by the stroke of the stop lever 4.
  • the end 14 of the rod of the jack 1 is connected to this injection pump lever by means of a ball joint 5.
  • This pump is equipped with an adjustable stop 6 installed on the regulator body, against the thrust of the jack.
  • the length of the cylinder rod is defined so that a residual stroke towards the rest position remains when the stop lever 4 is in the "on" position of the pump.
  • the effective stroke of the jack is chosen to be greater than the stroke necessary for the movement of the stop lever 4 to bring the latter into the injection cut-off position, and to be able to ensure the stroke limitation usually provided on the pump by the adjustable stop 6.
  • the cylinder can be pneumatic, hydraulic, electric, ...
  • the cylinder is connected to the cut-off lever by a yoke or other means of articulation.
  • the cylinder is fixed to the injection pump via a stepped axis ensuring its alignment with the stop lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
EP89403503A 1988-12-23 1989-12-15 Actionneur de levier de pompe d'injection Expired - Lifetime EP0375523B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817074A FR2641034B1 (enrdf_load_stackoverflow) 1988-12-23 1988-12-23
FR8817074 1988-12-23

Publications (2)

Publication Number Publication Date
EP0375523A1 EP0375523A1 (fr) 1990-06-27
EP0375523B1 true EP0375523B1 (fr) 1992-07-29

Family

ID=9373339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403503A Expired - Lifetime EP0375523B1 (fr) 1988-12-23 1989-12-15 Actionneur de levier de pompe d'injection

Country Status (3)

Country Link
EP (1) EP0375523B1 (enrdf_load_stackoverflow)
DE (1) DE68902308T2 (enrdf_load_stackoverflow)
FR (1) FR2641034B1 (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004360A1 (en) * 1986-12-12 1988-06-16 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gm Regulating device with a lever for a fuel injection pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351293A (en) * 1979-06-04 1982-09-28 Hewitt John T Diesel vehicle speed control system
GB2029512B (en) * 1979-08-30 1983-03-02 Bosch Gmbh Robert A control device for fuel injection pump
DE8714006U1 (de) * 1987-10-19 1987-12-03 Klöckner-Humboldt-Deutz AG, 5000 Köln Befestigungsflansch für die Abstellvorrichtung an einer Einspritzpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004360A1 (en) * 1986-12-12 1988-06-16 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gm Regulating device with a lever for a fuel injection pump

Also Published As

Publication number Publication date
FR2641034B1 (enrdf_load_stackoverflow) 1991-03-01
DE68902308D1 (de) 1992-09-03
FR2641034A1 (enrdf_load_stackoverflow) 1990-06-29
DE68902308T2 (de) 1993-04-08
EP0375523A1 (fr) 1990-06-27

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