DE3364046D1 - Electro-hydraulic timing control system for injection pumps of fuel injection internal-combustion engines - Google Patents
Electro-hydraulic timing control system for injection pumps of fuel injection internal-combustion enginesInfo
- Publication number
- DE3364046D1 DE3364046D1 DE8383890050T DE3364046T DE3364046D1 DE 3364046 D1 DE3364046 D1 DE 3364046D1 DE 8383890050 T DE8383890050 T DE 8383890050T DE 3364046 T DE3364046 T DE 3364046T DE 3364046 D1 DE3364046 D1 DE 3364046D1
- Authority
- DE
- Germany
- Prior art keywords
- solenoid valve
- actuator
- pressure source
- fuel injection
- return pipe
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
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.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT135182 | 1982-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3364046D1 true DE3364046D1 (en) | 1986-07-17 |
Family
ID=3512011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383890050T Expired DE3364046D1 (en) | 1982-04-05 | 1983-03-30 | Electro-hydraulic timing control system for injection pumps of fuel injection internal-combustion engines |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0090797B1 (en) |
AT (1) | ATE20377T1 (en) |
DE (1) | DE3364046D1 (en) |
Families Citing this family (2)
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)
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 |
-
1983
- 1983-03-30 EP EP83890050A patent/EP0090797B1/en not_active Expired
- 1983-03-30 AT AT83890050T patent/ATE20377T1/en active
- 1983-03-30 DE DE8383890050T patent/DE3364046D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0090797B1 (en) | 1986-06-11 |
EP0090797A1 (en) | 1983-10-05 |
ATE20377T1 (en) | 1986-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |