ATE20377T1 - ELECTRONIC-HYDRAULIC ADJUSTMENT SYSTEM FOR ADJUSTING THE START OF DELIVERY OF INJECTION PUMPS FOR INJECTION COMBUSTION ENGINES. - Google Patents

ELECTRONIC-HYDRAULIC ADJUSTMENT SYSTEM FOR ADJUSTING THE START OF DELIVERY OF INJECTION PUMPS FOR INJECTION COMBUSTION ENGINES.

Info

Publication number
ATE20377T1
ATE20377T1 AT83890050T AT83890050T ATE20377T1 AT E20377 T1 ATE20377 T1 AT E20377T1 AT 83890050 T AT83890050 T AT 83890050T AT 83890050 T AT83890050 T AT 83890050T AT E20377 T1 ATE20377 T1 AT E20377T1
Authority
AT
Austria
Prior art keywords
solenoid valve
injection
actuator
pressure source
return pipe
Prior art date
Application number
AT83890050T
Other languages
German (de)
Inventor
Jaroslaw Dipl-Ing Hlousek
Original Assignee
Friedmann & Maier Ag
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 Friedmann & Maier Ag filed Critical Friedmann & Maier Ag
Application granted granted Critical
Publication of ATE20377T1 publication Critical patent/ATE20377T1/en

Links

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
    • F02D1/16—Adjustment of injection timing
    • F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
    • F02D1/183—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Abstract

1. Electronic-hydraulic timing control system for injection pumps (2) of fuel injection internal-combustion engines, particularly for fuel injection in diesel engines, comprising a processor (54) having a memory for the programme to be performed and data inputs (55) to which are connected sensors for the rpm command or accelerator pedal position, resp., and for operating data of the engine such as temperatures and pressures as well as engine speed and optionally engine torque, and outputs, to which are connected solenoid valves for a hydraulic actuator (4, 17) in the form of a single-acting cylinder to be fed from a pressure source comprising a pump driven by the internal-combustion engine, said actuator engaging the transmission mechanism (3, 9-12) for driving the injection pump(s) (2) against spring action (13), the working chamber of said actuator being connectable to the pressure source or to a return pipe (32, 34) via a solenoid valve arrangement (23, 24, 56, 57), and a pressure reservoir (47) being connected to the pressure source via a check valve (46) opening to the pressure reservoir (47), characterised in that the working chamber of the actuator (4, 17) is connectable via at least one solenoid valve (23, 56, 57) either through a throttle (48) to the pressure source or to the pressure reservoir, and via a further solenoid valve (24) to the return pipe (32, 34), whereat all of the solenoid valves (23, 24, 56, 57) are controllable separately and in the electrical power-off condition the solenoid valve (23, 57) providing the connection to the throttle (48) is open and the solenoid valve (24) providing the connection to the return pipe (32, 34) is closed.
AT83890050T 1982-04-05 1983-03-30 ELECTRONIC-HYDRAULIC ADJUSTMENT SYSTEM FOR ADJUSTING THE START OF DELIVERY OF INJECTION PUMPS FOR INJECTION COMBUSTION ENGINES. ATE20377T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT135182 1982-04-05

Publications (1)

Publication Number Publication Date
ATE20377T1 true ATE20377T1 (en) 1986-06-15

Family

ID=3512011

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83890050T ATE20377T1 (en) 1982-04-05 1983-03-30 ELECTRONIC-HYDRAULIC ADJUSTMENT SYSTEM FOR ADJUSTING THE START OF DELIVERY OF INJECTION PUMPS FOR INJECTION COMBUSTION ENGINES.

Country Status (3)

Country Link
EP (1) EP0090797B1 (en)
AT (1) ATE20377T1 (en)
DE (1) DE3364046D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567577B1 (en) * 1984-07-12 1989-03-03 Cav Roto Diesel IMPROVEMENTS ON FUEL INJECTION PUMPS FOR INTERNAL COMBUSTION ENGINES
FR2972493A1 (en) * 2011-03-11 2012-09-14 Manitou Bf Device for controlling speed of diesel engine of aerial basket lifting device, has electrohydraulic unit acting on fuel supply unit, where hydraulic unit is connected to pressure source and fluid tank

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB579504A (en) * 1943-05-14 1946-08-06 Bendix Aviat Corp Coupling means for shafts and like torque-transmitting members
DE1932600C3 (en) * 1969-06-27 1978-07-27 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system for compression ignition engines with a change in the start of injection
JPS5339528B1 (en) * 1971-03-06 1978-10-21
DE2932672A1 (en) * 1979-08-11 1981-02-26 Daimler Benz Ag HYDRAULIC SPRAY ADJUSTER FOR HIGH PRESSURE INJECTION SYSTEMS FOR SELF-IGNITIONING INTERNAL COMBUSTION ENGINES

Also Published As

Publication number Publication date
DE3364046D1 (en) 1986-07-17
EP0090797B1 (en) 1986-06-11
EP0090797A1 (en) 1983-10-05

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