Pumps – With condition responsive pumped fluid control – Inlet throttle or stop valve
Patent
1988-02-19
1989-03-28
Freeh, William L.
Pumps
With condition responsive pumped fluid control
Inlet throttle or stop valve
417310, F04B 4902, F04C 2908
Patent
active
048159441
ABSTRACT:
In a variable capacity compressor having a capacity control mechanism so as to keep a suction pressure constant by detecting the suction pressure, plural return ports (18), a return passage (10) and an exit (19) are provided for bypassing refrigerant gas from a volume-decrease-step space in a cylinder compartment (5a) to a volume-increase-step space in that, and a guide passage (8) wherein a slider slides by a pressure of refrigerant gas is provided for controlling an amount of bypassing gas; and thereby it is possible to control capacity correctly and stably.
REFERENCES:
patent: 4557670 (1985-12-01), Inagadi et al.
patent: 4744732 (1988-05-01), Wakajima et al.
Abe Yoshikazu
Maruyama Teruo
Taguti Tatuhisa
Freeh William L.
Matsushita Electric - Industrial Co., Ltd.
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