EP0327547A1 - Regulating arrangement for a fuel injection system of an internal combustion engine. - Google Patents
Regulating arrangement for a fuel injection system of an internal combustion engine.Info
- Publication number
- EP0327547A1 EP0327547A1 EP87906736A EP87906736A EP0327547A1 EP 0327547 A1 EP0327547 A1 EP 0327547A1 EP 87906736 A EP87906736 A EP 87906736A EP 87906736 A EP87906736 A EP 87906736A EP 0327547 A1 EP0327547 A1 EP 0327547A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- control arrangement
- stop
- arrangement according
- control
- 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.)
- Granted
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
- F02D1/02—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
- F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
-
- 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
-
- 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
- F02D1/025—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 by means dependent on engine working temperature
-
- 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
- F02D1/04—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 by mechanical means dependent on engine speed, e.g. using centrifugal governors
-
- 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
- F02D1/06—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 by means dependent on pressure of engine working fluid
- F02D1/065—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 by means dependent on pressure of engine working fluid of intake of air
Definitions
- Control arrangement for a fuel injection system of an internal combustion engine :
- Control arrangements for fuel injection systems which regulate the start of fuel delivery and the amount of fuel in a speed-dependent manner are known. These are (usually) separate units, the injection quantity being varied via a centrifugal governor driven by the injection pump camshaft, while the start of injection can be changed relative to its drive by rotating the injection pump camshaft. These devices build relatively large, what u. For installation in the engine compartment of a motor vehicle U. of disadvantage is.
- the object of the invention is to provide a small-sized control arrangement which should preferably be able to be integrated into the cylinder head of an internal combustion engine and which nevertheless controls all parameters relevant to operation in an uncomplicated manner, preferably only with mechanical aids.
- the regulator shaft (2) can be rotated in a regulator frame (1) and the adjusting rods for the narrow fuel adjustment Qe (3) and the start of fuel delivery FB (4) are slidably mounted.
- the arrows on the control rods indicate the direction of shift for zero delivery or the earlier start of fuel delivery. How the actuating rods act on the injection elements is not to be explained here, since it is of no importance for the control arrangement and is therefore not the subject of this invention.
- the free end of the control shaft (2) is driven by a shaft gear (36) via an idler gear from the camshaft of the engine to be controlled, which runs parallel to the control shaft and is not shown in the drawing for the sake of clarity. This intermediate gear enables a gear ratio, preferably in a rapid manner, between the two shafts.
- centrifugal force adjusters (5a and 5b) are mounted on the regulator shaft (2), the centrifugal weights (6) of which exert a force which increases with increasing speed in the direction of the arrow on the sliding sleeves (7).
- the FB lever (8) which is pressed against the sleeve (7) by the tension spring (9), is in turn pushed away in the direction of the arrow and thus moves the actuating rod for the fuel delivery start (4) via a stop attached to it (10) against a compression spring (11) in the direction of an earlier start of fuel delivery.
- the Qe lever (12) is pressed in the direction of the arrow and moves the adjusting rod for the fuel quantity adjustment (3.) via a stop (13) attached to it against the compression spring (14), thereby reducing the amount of fuel injected.
- a force also acts on the other end of the Qe lever (12), which is dependent on the position of the throttle lever (15), which is shown in the idle position and via a spring assembly comprising an idle spring (16) and a regulating spring (17). is connected to the Qe lever (12).
- the idle spring (16) is dimensioned such that it only works in the range of the idle speed. At higher speeds, which can be achieved by adjusting the throttle lever (15) in the direction of the arrow, it is compressed to the stop.
- the locking spring (17) is preloaded and is only pressed further together when the centrifugal force adjuster (5a) can overcome this preload.
- the preload is dimensioned such that this is only the case in the de-energizing area when the maximum speed is reached; ie the controller works in the area between idle and shutdown as a charge controller, the charge depending on the throttle position.
- the spring (1) is not preloaded for applications which require pure speed control.
- the maximum speed is limited by an adjustable stop (18).
- the idle speed is determined by a stop lever (19).
- An automatic idle boost (ALA) is achieved by an expansion thermostat (20), which contracts at low temperatures, whereby the tension spring (21) adjusts the stop in the direction of "higher speed". At higher temperatures, however, the expansion thermostat is no longer used for control; a stop set with screws (31) prevents the idling speed from dropping.
- ASA automatic start quantity increase
- Increasing the fuel quantity during the starting phase of the engine is effected as follows: If the adjusting rod for the fuel quantity adjustment (3) has reached its zero position (spring 14 on block) and the lever (22) is moved further in the direction of the arrow when the engine is switched off, then turns the stop lever (24) pretensioned by the tension spring (25) from its oblique position to the position shown in dashed lines and thus enables the adjusting rod for the fuel quantity adjustment (3) to move a larger distance when the engine is restarted before the lever (22) with its device known as the compensation curve (32) strikes a pin (26) which is attached to the lever (8).
- thermo ⁇ statteiler cold start accelerator ensures that the fuel feed is set previously ⁇ at low rotational speeds.
- the piston (28) presses the actuating rod for the fuel delivery start (4) in the direction of the arrow to an earlier start of delivery via lever (29) and stop pin (30).
- the engine can also be switched off mechanically using levers (34).
- the stop (35) also acts as a full load limit for the special case that the adjustment curve (32) is not required, such as. B. in generator operation.
- PAB pneumatic stop
- Fig. 2 indicates a possible installation of the control arrangement in the cylinder head (1a) and cylinder head cover (37) of an internal combustion engine.
- the regulator frame is then identical to the 'walls of the cylinder head
- the regulator shaft is driven via the shaft wheel and the intermediate wheel (36a).
- Throttle lever (12a) is continued in the cover (37) in (15b) and outside in (15c).
- the expansion thermostat (20a) and the vacuum box (23a) are located on the cylinder head cover; the latter acts via the pin (23b) on the adjuster (23c), which is housed in the cylinder head, etc. It is indicated here that a control arrangement is installed in the cylinder head of an internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
Un agencement de régulation pour le début d'amenée de carburant et son débit dans un moteur à combustion interne à injection se compose de deux régulateurs centrifuges (5b, 5a) et de deux tiges de réglage (4, 3). Tous les paramètres liés au fonctionnement sont transmis à la ou aux pompes par cet agencement à l'aide des tiges de réglage. L'agencement est conçu de telle manière qu'il se loge sous un très faible encombrement et s'intègre même dans le moteur.A regulating arrangement for the start of fuel supply and its flow in an internal combustion injection engine consists of two centrifugal regulators (5b, 5a) and two regulating rods (4, 3). All the operating parameters are transmitted to the pump (s) by this arrangement using the adjustment rods. The arrangement is designed in such a way that it fits in a very small footprint and even fits into the engine.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3635557 | 1986-10-20 | ||
DE3635557 | 1986-10-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0327547A1 true EP0327547A1 (en) | 1989-08-16 |
EP0327547B1 EP0327547B1 (en) | 1992-07-22 |
Family
ID=6312021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87906736A Expired - Lifetime EP0327547B1 (en) | 1986-10-20 | 1987-10-20 | Regulating arrangement for a fuel injection system of an internal combustion engine |
Country Status (10)
Country | Link |
---|---|
US (1) | US4813389A (en) |
EP (1) | EP0327547B1 (en) |
JP (1) | JPH02500765A (en) |
AR (1) | AR240079A1 (en) |
AU (1) | AU8078387A (en) |
BR (1) | BR8705837A (en) |
DE (1) | DE3780643D1 (en) |
MX (1) | MX160221A (en) |
RU (1) | RU2070296C1 (en) |
WO (1) | WO1988002810A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2512948Y2 (en) * | 1987-06-18 | 1996-10-02 | 株式会社小松製作所 | Fuel injection amount control device for V-type engine |
DE4110493C2 (en) * | 1991-03-30 | 1994-08-04 | Elsbett L | Method and device for regulating the speed of engines |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2123433A (en) * | 1933-12-09 | 1938-07-12 | Caterpillar Tractor Co | Engine |
US2117248A (en) * | 1934-09-25 | 1938-05-10 | Bosch Gmbh Robert | Apparatus for controlling the amount of fuel delivered by an injection pump |
US2868184A (en) * | 1957-04-22 | 1959-01-13 | Curtiss Wright Corp | Engine load limiting controls |
US2965089A (en) * | 1957-05-27 | 1960-12-20 | Holley Carburetor Co | Cold start means for an internal combustion engine |
US3230946A (en) * | 1963-05-08 | 1966-01-25 | Kugelfischer G Schaefer & Co | Device for controlling the amount of fuel injected into an internal combustion engine as a function of engine speed |
DE2003927A1 (en) * | 1970-01-29 | 1971-08-12 | Bosch Gmbh Robert | Control device for the fuel-air mixture in internal combustion engines working with external ignition |
DE2145036C3 (en) * | 1971-09-09 | 1980-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | Control device for injection pumps of internal combustion engines |
JPS5257295Y2 (en) * | 1973-03-05 | 1977-12-26 | ||
DE2639961A1 (en) * | 1976-09-04 | 1978-03-09 | Bosch Gmbh Robert | SPEED CONTROLLER FOR INJECTION COMBUSTION ENGINES |
DE2747083A1 (en) * | 1977-10-20 | 1979-05-03 | Bosch Gmbh Robert | DEVICE FOR LIMITING THE FULL-LOAD INJECTION QUANTITY IN A CHARGED AIR-COMPRESSING INJECTION COMBUSTION ENGINE |
EP0009475B1 (en) * | 1978-09-21 | 1982-12-29 | Friedmann & Maier Aktiengesellschaft | Control apparatus for diesel engines |
DE2909555A1 (en) * | 1979-03-10 | 1980-09-18 | Bosch Gmbh Robert | FUEL INJECTION PUMP |
DE2909559A1 (en) * | 1979-03-10 | 1980-09-11 | Bosch Gmbh Robert | FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
JPS5617530A (en) * | 1979-07-20 | 1981-02-19 | Nec Corp | Adaptive signal discriminator |
AT369138B (en) * | 1979-10-16 | 1982-12-10 | Friedmann & Maier Ag | CONTROL DEVICE, IN PARTICULAR FOR INTERNAL COMBUSTION ENGINES |
DE2947631A1 (en) * | 1979-11-27 | 1981-07-23 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Fuel pump for IC engine - has two centrifugal governors linked to vary characteristic curve with speed |
AT370213B (en) * | 1980-06-11 | 1983-03-10 | Friedmann & Maier Ag | CONTROL OF AN INJECTION DEVICE FOR MULTI-CYLINDER INJECTION INTERNAL COMBUSTION ENGINES |
AT367170B (en) * | 1980-10-24 | 1982-06-11 | Friedmann & Maier Ag | DEVICE FOR ADJUSTING THE START OF INJECTION AND THE INJECTION AMOUNT OF A FUEL INJECTION PUMP FOR CHARGED COMBUSTION ENGINES |
GB2090911B (en) * | 1980-11-28 | 1984-06-27 | Yanmar Diesel Engine Co | Overhead cam type diesel engine |
JPS59131730A (en) * | 1983-01-18 | 1984-07-28 | Nissan Motor Co Ltd | Idling-speed controlling apparatus |
DE3307265A1 (en) * | 1983-03-02 | 1984-09-06 | Volkswagenwerk Ag, 3180 Wolfsburg | Control device for injection pumps |
US4625900A (en) * | 1984-05-30 | 1986-12-02 | Darryl Lawson | Outboard motor mounts for vehicles |
-
1987
- 1987-10-19 MX MX8895A patent/MX160221A/en unknown
- 1987-10-19 US US07/110,287 patent/US4813389A/en not_active Expired - Fee Related
- 1987-10-20 AR AR309034A patent/AR240079A1/en active
- 1987-10-20 JP JP62506051A patent/JPH02500765A/en active Pending
- 1987-10-20 RU SU874614028A patent/RU2070296C1/en active
- 1987-10-20 AU AU80783/87A patent/AU8078387A/en not_active Abandoned
- 1987-10-20 DE DE8787906736T patent/DE3780643D1/en not_active Expired - Lifetime
- 1987-10-20 EP EP87906736A patent/EP0327547B1/en not_active Expired - Lifetime
- 1987-10-20 BR BR8705837A patent/BR8705837A/en not_active IP Right Cessation
- 1987-10-20 WO PCT/DE1987/000471 patent/WO1988002810A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO8802810A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU8078387A (en) | 1988-05-06 |
MX160221A (en) | 1990-01-09 |
WO1988002810A1 (en) | 1988-04-21 |
RU2070296C1 (en) | 1996-12-10 |
DE3780643D1 (en) | 1992-08-27 |
AR240079A1 (en) | 1990-01-31 |
JPH02500765A (en) | 1990-03-15 |
BR8705837A (en) | 1988-05-31 |
EP0327547B1 (en) | 1992-07-22 |
US4813389A (en) | 1989-03-21 |
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