Device for detecting overcharge of refrigerant in air conditione

Details Device for detecting overcharge of refrigerant in air conditione Device for detecting overcharge of refrigerant in air conditione

1984-06-20

1986-03-25

Wayner, William E.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62133, 62509, F25B 4900

Patent

active

045774692

ABSTRACT:
Provided in this invention is a device for detecting overcharge of refrigerant in the cooling cycle in an air-conditioner for automobiles, featuring the provision of a sensor for detecting the liquid level in the receiver tank in the cooling cycle. Means are provided for preventing misoperation of the liquid level sensor due to the rotational speed of the compressor drive system and the transient response immediately after start of the compressor, thereby allowing correct detection of overcharge of refrigerant in the cooling cycle.

REFERENCES:
patent: 4096706 (1978-06-01), Beckwith
patent: 4167858 (1979-09-01), Kojima et al.
patent: 4522037 (1985-06-01), Ares et al.

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