Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1979-04-17
1980-11-04
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123552, 236 13, F02M 3100
Patent
active
042313430
ABSTRACT:
A device for adjusting the intake air temperature of a carburetor-equipped internal combustion engine whose air intake system has 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 temperature, the flapper valve position being controlled by a pneumatic membrane actuator which receives 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, the effective length of the drive connection being further adjustable by means of a threaded connection which is arranged between the membrane support body of the actuator and the wax thermostat.
REFERENCES:
patent: 3830210 (1974-08-01), Muller
patent: 4144857 (1979-03-01), Bendig
patent: 4161930 (1979-07-01), Bendig
Alf Herbert
Ernst Volker
Hainle Rudi
Leipelt Rudolf
Filterwerke Mann & Hummel GmbH
Geiger Joseph A.
Lazarus Ronald H.
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