Inlet air temperature control for an I.C. engine

Details Inlet air temperature control for an I.C. engine Inlet air temperature control for an I.C. engine

1977-06-13

1978-11-21

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123122H, F02M 3100

Patent

active

041261100

ABSTRACT:
The ratio of preheated inlet air to ambient inlet air supplied to an internal combustion engine is controlled by a proportioning valve operated by a vacuum motor. Operating pressure for the motor is controlled by valve means responsive to the inlet air temperature for normally preventing changes in the motor operating pressure, but which selectively connects the motor via a predetermined restriction with essentially atmospheric pressure, or with sub-atmospheric pressure in the engine inlet air induction passage downstream of the throttle valve, when said inlet temperature is correspondingly above or below a predetermined operating range, whereby the operating pressure for the vacuum motor and actuation of the proportioning valve are functions of an algebraic integration of the time intervals that the inlet air temperature varies from the predetermined operating range.

REFERENCES:
patent: 2470572 (1949-05-01), Miller
patent: 3830210 (1974-08-01), Muller
patent: 3918421 (1975-11-01), Berry
patent: 4026464 (1977-05-01), Doherty

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