Apparatus to control the composition of the operating mixture of

Details Apparatus to control the composition of the operating mixture of Apparatus to control the composition of the operating mixture of

1977-09-12

1979-07-24

Geoghegan, Edgar W.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139BG, 123119R, F02M 3900

Patent

active

041619340

ABSTRACT:
An apparatus to control the composition of the operating mixture of an internal combustion engine in which the fuel is apportioned by means of a variable cross-sectional apportionment area where the pressure drop is kept constant by a differential pressure valve. The uncontrolled pressure chamber (reference pressure chamber) of the differential pressure valve lies downstream of an apportioning recessed area. A given fuel discharge quantity from the controlled pressure chamber of the differential pressure valve is determined in accordance with the fluctuations of the pressure in the reference pressure chamber, and a positioning motor provided for the correction of the magnitude effecting the deviation of the reference pressure is further actuated in accordance with the discharge quantity. The controlled pressure chamber lies upstream of the apportioning recessed area within a fuel supply line connected to a fuel feed pump, and a storage chamber having a wall displaceable against a restoring force as well as a pressure control valve that is connected to the fuel supply line.

REFERENCES:
patent: 3730155 (1973-05-01), Knapp
patent: 3983856 (1976-10-01), Stumpp et al.

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