Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1979-08-02
1981-04-07
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123552, F02M 3100
Patent
active
042599369
ABSTRACT:
A device for electronically controlling the intake air temperature of an internal combustion engine, featuring a temperature sensor in the clean air space of the filter, the signal from the sensor controlling an electromagnetically driven oscillator pump whose vacuum output adjusts the flapper of an air flow proportioning valve by means of a pneumatic actuator, until the correct ratio of cold and preheated raw air is admitted into the intake system for the establishment of an optimal combustion air temperature. An automatic lowering of this temperature under full-load operation is achieved by utilizing the negative pressure in the air intake manifold as a control means to shift the oscillating armature of the oscillator pump away from its maximum output position. In an air intake system for fuel-injected engines, a similar result is achieved by means of an air flow sensor whose output signal is superimposed on the control signal from the temperature sensor.
REFERENCES:
patent: 2382365 (1945-08-01), Carssow
patent: 2414296 (1947-01-01), Gill
patent: 3787037 (1974-01-01), Motooka
patent: 3985112 (1976-10-01), Jordan
patent: 4078379 (1978-03-01), Minami
patent: 4144857 (1979-03-01), Bendig
patent: 4161930 (1979-07-01), Bendig
Bach Walter
Blumhardt Rainer
Fusser Rolf
Ruckert Karl-Heinz
Filterwerk Mann & Hummel GmbH
Geiger Joseph A.
Lazarus Ronald H.
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