Method and system for controlling capacity of variable capacity

Details Method and system for controlling capacity of variable capacity Method and system for controlling capacity of variable capacity

1988-02-25

1989-07-18

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

621963, 25112908, F25B 100

Patent

active

048481017

ABSTRACT:
A method of controlling the capacity of a variable capacity wobble plate compressor from an air conditioning system wherein the compressor capacity is controlled such that the degree of communication between a suction chamber and a crankcase is controlled by a pressure control valve to vary the crankcase pressure and hence the angularity of the wobble plate. The value of at least one parameter representing thermal load is detected, the magnitude of current to be supplied to an electromagnetic actuator of the pressure control valve is determined in response to the detected parameter value, and the opening of the pressure control valve is determined in response at least to the determined magnitude of current.

REFERENCES:
patent: 4102150 (1978-07-01), Kountz

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