Refrigerant circulating system

Details Refrigerant circulating system Refrigerant circulating system

1996-06-21

1998-04-14

Wayner, William E.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62204, 62502, F25B 100, F25B 4104

Patent

active

057379319

ABSTRACT:
A refrigerant circulating system using non-azeothropic mixture as refrigerant, which comprises: a main refrigerant circuit connected by a compressor, a fore-way valve, an outdoor heat-exchanger, a first throttling device, a plurality of indoor heat-exchangers, and a low-pressure receiver; a bypass circuit diverging from the discharge portion of the compressor, and extending through a composition detecting heat-exchanger and a second throttling device to a low-pressure portion; an outdoor fun attendant of the outdoor heat-exchanger; first temperature detector to detect a refrigerant temperature at the upstream of the second throttling device; second temperature detector to detect a refrigerant temperature at the downstream of the second throttling device; first pressure detector to detect a pressure at the downstream of the second throttling device; third temperature detector to detect temperature in the main circuit between the first throttling device and the indoor heat-exchanger; forth temperature detector to detect temperature at the low-pressure portion; second pressure detector to detect the pressure at the high-pressure portion; a composition calculating device for calculating the composition of the mixture refrigerant; a main controller for controlling the number of rotation of the compressor and the number of rotation of an outdoor fun; a throttle controller for controlling the opening of the first throttling device.

REFERENCES:
patent: 5353604 (1994-10-01), Oguni et al.
patent: 5410887 (1995-05-01), Urata et al.

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