Device for automatically controlling the intake air temperature

Details Device for automatically controlling the intake air temperature Device for automatically controlling the intake air temperature

1977-10-17

1979-03-20

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123122H, 236 13, F02M 3100

Patent

active

041448570

ABSTRACT:
A device for adjusting the intake air temperature of carburetor-equipped internal combustion engines having an air intake system with a flapper valve in a duct junction admitting cold raw air and/or preheated raw air to the intake filter, depending on the raw air temperatures, the flapper valve position being controlled by a pneumatic membrane actuator receiving negative pressure from the intake manifold, via a vacuum line with a thermostat-controlled relief valve responsive to the temperature of the air mixture. In the drive connection between the membrane actuator and the flapper is arranged a wax thermostat which increases or decreases the effective length of the connection in response to the ambient air temperature, thereby adding the thermostat displacements to the actuator displacements.

REFERENCES:
patent: 3450119 (1969-06-01), Sendebach
patent: 3563007 (1971-02-01), Clarke
patent: 3830210 (1974-08-01), Muller

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