Automatic car-cooler clutch control apparatus

Details Automatic car-cooler clutch control apparatus Automatic car-cooler clutch control apparatus

1980-12-12

1982-10-26

Makay, Albert J.

Refrigeration

Automatic control

Responsive to vehicle body motion or traction

62230, 623234, B60H 304, F25B 2700

Patent

active

043555233

ABSTRACT:
An automatic car-cooler clutch control apparatus such that the compressor can forcedly be engaged with the engine when a predetermined period of time has elapsed after the compressor is disengaged or when the vehicle speed reaches a predetermined value, in addition to when a vacuum pressure within the intake manifold is more than a predetermined value, that is, a relatively light load is applied to the engine. The automatic car-cooler clutch control apparatus of the present invention comprises a timer or a speed indicator including one or two switch circuits for energizing the clutch relay to engage the compressor with the engine, regardless of a vacuum pressure within the intake manifold, in addition to a vacuum pressure switch and a vacuum pressure chamber communicated with the intake manifold.

REFERENCES:
patent: 3606764 (1971-09-01), Yokouchi et al.
patent: 4135368 (1979-01-01), Mohr et al.
patent: 4226090 (1980-10-01), Horian

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