Automotive air conditioner

Details Automotive air conditioner Automotive air conditioner

1988-08-02

1990-04-03

Tanner, Harry B.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62114, 62174, 62502, F25B 100

Patent

active

049137140

ABSTRACT:
The automotive air conditioner uses a plurality of groups of coolant having different boiling points. The air conditioner uses both the lower boiling point coolant and the higher boiling point coolant when the air conditioner requires high cooling efficiency. The air conditioner separates the lower boiling point coolant from the higher boiling point coolant when the air conditioner does not require high cooling efficiency. In order to separate the lower boiling point coolant, the air conditioner has a rectifying circuit on which a controlling valve, a first pressure reducing means, a rectifying means, a second pressure reducing means and a heat exchanger is provided. The amount of coolant passing through the rectifying circuit is controlled in accordance with the temperature of the coolant downstream of the heat exchanger.

REFERENCES:
patent: 2794322 (1957-06-01), Etherington
patent: 2938362 (1960-05-01), Schwind
patent: 3487653 (1970-01-01), Myre
patent: 4580415 (1986-04-01), Sakuma et al.
patent: 4722195 (1988-02-01), Suzuki et al.

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