Fuel-injection pump for internal combustion engines, in particul

Details Fuel-injection pump for internal combustion engines, in particul Fuel-injection pump for internal combustion engines, in particul

1988-12-07

1989-12-05

Miller, Carl Stuart

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123373, 123365, F02M 3900

Patent

active

048845426

ABSTRACT:
In a fuel injection pump for internal combustion engines for motor vehicles, a damping device is provided to eliminate so-called vehicle bucking. The device allows rapid adjusting movements of an rpm adjusting lever, which is connected to the driving lever, to affect the supply quantity setting of the fuel injection pump only with a delay. To this end, the damping device has a damping chamber defined by a damping cylinder and a damping piston displaceable therein. The damping chamber communicates with the pump interior via two parallel throttles and via counter-parallel check valves located in series with the parallel throttles. The damping piston is connected to a damper lever on which the rpm adjusting lever is supported via a pre-stressed drag spring. The damper lever is connected via a governor spring to a governor lever, which actuates a quantity adjusting device to determine the fuel metering, so that an adjusting motion of the rpm adjusting lever acts upon the quantity adjusting device only in a delayed manner.

REFERENCES:
patent: 3640258 (1972-02-01), Isobe
patent: 3797470 (1974-03-01), Beck
patent: 3886922 (1975-06-01), Frick
patent: 4180040 (1979-12-01), Hofer
patent: 4328777 (1982-05-01), Yasuhara
patent: 4368406 (1983-01-01), Yasqhara
patent: 4426971 (1984-01-01), Isoda
patent: 4498437 (1985-02-01), Ohkoshi
patent: 4505241 (1985-03-01), Eheim
patent: 4612891 (1986-09-01), Doveri
patent: 4664029 (1987-05-01), Sakuranaka

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