Variable capacity rotary compressor

Details Variable capacity rotary compressor Variable capacity rotary compressor

2007-06-19

2007-06-19

Koczo, Jr., Michael (Department: 3746)

Pumps

With condition responsive pumped fluid control

Expansible chamber pump distributor operation modified

C418S063000

Reexamination Certificate

active

10671597

ABSTRACT:
A variable capacity rotary compressor to reduce an electric power loss thereof and includes a drive unit to generate a rotating force, a rotating shaft connected to the drive unit to rotate thereby, and a compressing cylinder through which the rotating shaft passes. A compressing chamber is defined in the compressing cylinder to compress refrigerant therein, with a first refrigerant inlet port provided at the compressing chamber to introduce the refrigerant into the compressing chamber. A capacity control unit controls an operation of the rotary compressor, so that the rotary compressor performs one of a normal-mode operation wherein the first refrigerant inlet port is maintained at an open state thereof, and the variable capacity-mode operation wherein the first refrigerant inlet port is periodically opened and closed.

REFERENCES:
patent: 4432698 (1984-02-01), Shirakuma et al.
patent: 4558993 (1985-12-01), Hori et al.
patent: 6206652 (2001-03-01), Caillat
patent: 9-4548 (1997-01-01), None
patent: 2001-280253 (2001-10-01), None

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