Vapor pressure-adjusting valve and refrigeration system using sa

Details Vapor pressure-adjusting valve and refrigeration system using sa Vapor pressure-adjusting valve and refrigeration system using sa

1988-05-27

1989-10-03

Tapolcai, William E.

Refrigeration

Automatic control

Refrigeration producer

62217, F25B 4104

Patent

active

048708348

ABSTRACT:
A refrigeration system for use in an automotive air conditioner comprises a compressor for compressing vapor-phase refrigerant, a condenser connected to the outlet of the compressor, an expansion valve connected to the outlet of the valve, and a vapor pressure-adjusting valve mounted in the passage extending from the evaporator to the compressor. When the vapor pressure inside this passage is less than a certain value, the adjusting valve reduces the flow of refrigerant from the evaporator to the compressor to maintain the vapor pressure constant. A part of the liquid-phase refrigerant on the downstream side of the condenser is added to the refrigerant evaporated by the evaporator, by means of the adjusting valve.

REFERENCES:
patent: 2363273 (1944-11-01), Waterfill
patent: 3227659 (1966-10-01), Sylvan et al.
patent: 3369374 (1968-02-01), Miller
patent: 3498074 (1970-03-01), Fineblum
patent: 3807192 (1974-04-01), Porter
patent: 3818717 (1974-06-01), Perughia
patent: 4129995 (1978-12-01), Usami

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