Variable capacity compressor

Details Variable capacity compressor Variable capacity compressor

1989-01-30

1990-05-29

Smith, Leonard E.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417310, F04C 2908, F04B 4902

Patent

active

049291564

ABSTRACT:
A variable capacity compressor has first and second discharge pressure chambers provided, respectively, on opposite sides of a cylinder. A first communication passage communicates the first and second discharge pressure chambers with each other. A discharge port directly communicates with the first discharge pressure chamber. A capacity control device is operable in response to control pressure for controlling the capacity of the compressor and has a control pressure chamber in which the control pressure prevails. A second communication passage communicates the second discharge pressure chamber with the control pressure chamber. The second discharge pressure chamber is formed of an oil sump section communicating with the first discharge pressure chamber through the first communication passage, and a high pressure-introducing section supplied with compression medium delivered from the cylinder, wherein partition walls are provided which isolate the high pressure-introducing section from the oil sump section.

REFERENCES:
patent: 4726740 (1988-02-01), Suzuki et al.
patent: 4737081 (1988-04-01), Nakajima et al.
patent: 4801251 (1989-01-01), Nakajima et al.

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