Process for the control of a refrigeration system as well as a r

Details Process for the control of a refrigeration system as well as a r Process for the control of a refrigeration system as well as a r

1997-11-17

1999-07-13

Tapolcai, William E.

Refrigeration

Automatic control

Refrigeration producer

62225, G05D 2330

Patent

active

059210982

ABSTRACT:
A process for controlling a refrigeration system, as well as the refrigeration system and a new expansion valve for the refrigeration system. An electronic regulator is used to operate a sensor system having a device for applying heat power to the sensor system in direct dependence on sensed superheat of the refrigerant leaving the evaporator. By locating the sensing system in communication with liquid refrigerant upstream of the evaporator, heat transfer to the liquid refrigerant is utilized for operation of the sensor system rather than heat transfer to the superheat, resulting in a far more stable and efficient refrigeration control.

REFERENCES:
patent: 2754661 (1956-07-01), Coyne
patent: 4467613 (1984-08-01), Behr et al.
patent: 4879879 (1989-11-01), Marsala et al.
patent: 5148978 (1992-09-01), Stapelbroek

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