Variable capacity compressor

Details Variable capacity compressor Variable capacity compressor

1987-10-22

1990-01-02

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417310, F04B 4902, F04C 2908

Patent

active

048909866

ABSTRACT:
In a variable capacity compressor having a rotary type cylinder compartment (24a), plural return ports (33) formed in a volume-decrease-step space in the cylinder compartment (24a), an exit (34) formed in a volume-increase-step space in the cylinder compartment (24a), a C-shaped guide passage (35) for connecting the plural return ports (33) and the exit (34), an arc-shaped slider (36) provided slidably for gradually opening and closing the plural return ports (33), a spring (37) for pushing the arc-shaped slider (36), and a pressure control valve (42) for pushing the arc-shaped slider (36) in opposite direction to the pushing of the spring are provided; and thereby a wide variable capacity range is realized with compact size and high efficiency.

REFERENCES:
patent: 3026809 (1962-03-01), Anderson et al.
patent: 4557670 (1985-12-01), Inagaki et al.
Patent Abstract of Japan, vol. 12, No. 64 (M-672)[2911], published Feb. 26, 1988, re JP-A-62 210 286, (Matsushita Elec. Ind.), 16-09-87.

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