Heating systems – Heat and power plants – Vehicle
Patent
1980-11-06
1982-06-08
Tapolcai, Jr, William
Heating systems
Heat and power plants
Vehicle
165 16, 236 13, B60H 100
Patent
active
043336060
ABSTRACT:
An intake control system comprising a mode selector which receives a first control pressure and a second control pressure, and, according to the temperature inside and outside the vehicle, adapted to supply selectively a plurality of different combinations of the first and second control pressures to a pressure activated actuator to switch an air intake system between at least an outside air position and a recirculating air position. An air intake changeover switch receives the pressure output by an air control switch, a first reference pressure and a second reference pressure, and supplies a certain combination thereof as the first and second control pressures, when operated, to the mode selector, thereby causing the actuator to switch the air intake system to the recirculating air position, irrespective of the switching state of the mode selector.
REFERENCES:
patent: 3428115 (1969-02-01), Caldwell
patent: 3455505 (1969-07-01), Beatenbough et al.
patent: 3718281 (1973-02-01), Beatenbough et al.
patent: 3983930 (1976-10-01), Franz
patent: 4037651 (1977-07-01), Ito et al.
patent: 4134542 (1979-01-01), Sugiura
patent: 4240580 (1980-12-01), Fehr
patent: 4262738 (1981-04-01), Kato et al.
Inoshita Yasushi
Ohashi Toshio
Shimada Yukio
Suzuki Naoyoshi
Nissan Motor Company Limited
Tapolcai, Jr William
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