Warm air intake system for an internal combustion engine

Details Warm air intake system for an internal combustion engine Warm air intake system for an internal combustion engine

1978-06-20

1980-07-01

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123552, 236101C, F02M 3100

Patent

active

042101158

ABSTRACT:
A warm air intake system for an internal combustion engine having a change-over valve which selectively connects an air intake passage of the engine to a cold air source or to a warm air source, diaphragm means supplied with intake manifold vacuum by a vacuum passage so as to change-over the change-over valve in accordance with supply or relief of vacuum to its diaphragm chamber, and a snap action thermostat control valve which involves a temperature hysteresis between its on and off operations and which selectively opens a middle portion of the vacuum passage to the atmosphere in accordance with the temperature of the air flowing through the air intake passage.

REFERENCES:
patent: 2054997 (1936-09-01), Vang
patent: 3913544 (1975-10-01), Fyie
patent: 3918421 (1975-11-01), Berry
patent: 4068800 (1978-01-01), Doherty
patent: 4126109 (1978-11-01), Akado
patent: 4126110 (1978-11-01), Simmons

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