VARIABLE CAPACITY COMPRESSOR

摘要

A suction chamber is provided for refrigerant before compression with a discharge chamber for a compressed refrigerant, also suction and compression cylinder bores. Pistons are reciprocated by the wobble plate within the cylinder bores for compressing the refrigerant. A crank case has a chamber to receive a drive, with a wobble plate mechanism mounted about a drive shaft connectable to a rotary drive source. A passageway provides a fluid communication between the crankcase and the discharge chamber. A control valve closes and opens the passageway in response to a change in a fluid pressure indicative of a load change. Another communication passageway permits the evacuation of a blow by gas from the crankcase chamber to the suction chamber.