Sliding vane type rotary compressor

Details Sliding vane type rotary compressor Sliding vane type rotary compressor

1985-03-19

1986-04-08

Gluck, Richard E.

Pumps

With condition responsive pumped fluid control

Pumped fluid temperature responsive

417295, 417505, 418 15, F04B 4902

Patent

active

045809496

ABSTRACT:
A sliding vane type rotary compressor has at least two suction ports through which a refrigerant is sucked into the vane chamber. A combination of a spring made of a shape memory alloy adapted to expand and contract when supplied with an electric current and a spool operative by the spring is disposed in a flow passage through which the source of the refrigerant is connected to one of the suction ports leading to a region of higher magnitude of compression. The flow passage is opened and closed by the spool which is moved by the expansion and contraction of the spring of the shape memory alloy in response to the heat produced by the self heat build-up action when supplied with an electric current and also to the cooling function of the refrigerant of low temperature, thus attaining a variable capacity control of the compressor with a simple and compact construction.

REFERENCES:
patent: 4407639 (1983-10-01), Maruyama

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