Air-conditioning equipment for vehicle

Details Air-conditioning equipment for vehicle Air-conditioning equipment for vehicle

1988-05-24

1989-10-03

Ford, John

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 24, 165 43, 98 201, 98 206, 98 211, 236 493, 318 15, 318641, 318666, 622285, 623234, F25B 2900, B60H 100, G05D 2324

Patent

active

048710113

ABSTRACT:
An air-conditioning equipment for a vehicle includes first and second local shutter control units each having a motor for moving a shutter, a drive circuit for driving the motor, a controlling device responsive to a heat load signal to control the drive circuit to thereby control the shutter in accordance with the heat load signal, and a blower control unit responsive to changes in opening of the shutter to control the rate of an air flow. Since separate shutter control units are provided, each shutter can be controlled independently, thus preventing all the air-conditioning functions from halting simutaneously otherwise occurred in conventional air-conditioning equipment having a central control unit or microcomputer.

REFERENCES:
patent: 3934642 (1976-01-01), Coulson et al.
patent: 3948312 (1976-04-01), Nisbet
patent: 4070610 (1978-01-01), Rudich, Jr.
patent: 4289195 (1981-09-01), Bellot et al.
patent: 4352452 (1982-10-01), Shimada et al.
patent: 4418743 (1983-12-01), Dietzsch et al.
patent: 4442885 (1984-04-01), Matsuzaki
patent: 4566528 (1986-01-01), Helmle et al.
patent: 4580620 (1986-04-01), Fukumoto et al.
patent: 4616164 (1986-10-01), Kenny et al.

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