Apparatus and method for controlling the composition of the oper

Details Apparatus and method for controlling the composition of the oper Apparatus and method for controlling the composition of the oper

1979-10-15

1982-05-04

Lazarus, Ira S.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123452, F02D 902

Patent

active

043276830

ABSTRACT:
An apparatus for controlling the composition of the operational mixture in internal combustion engines. Air quantity is controlled to correspond to an arbitrarily settable fuel quantity, by creating a set-point fuel quantity signal from an actual value air quantity signal, via a performance graph, the fuel signal taking the form of a correspondingly set metering cross section in a fuel supply line. A differential pressure valve, connected across the metering cross section, creates a hydraulic control pressure for actuating an air throttle valve in accordance with the deviation of the pressure drop across the metering cross section from a set-point value which is kept constant. During overrunning, the pressure drop becomes zero and the throttle valve is fully opened by hydraulic control pressure supplied through a pressure-actuated valve which opens when the pressure downstream of the metering cross section rises to a value indicating an overrunning condition.

REFERENCES:
patent: 2395748 (1946-02-01), Mallory
patent: 3491732 (1970-01-01), Dahm et al.
patent: 3996904 (1976-12-01), Kobuki et al.
patent: 3999524 (1976-12-01), Kobayashi et al.
patent: 4084558 (1978-04-01), Hattori et al.
patent: 4178890 (1979-12-01), Yamabe et al.
patent: 4205645 (1980-06-01), Eheim

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