Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent
1996-04-05
1998-09-08
Thorpe, Timothy
Pumps
With condition responsive pumped fluid control
Pressure responsive relief or bypass valve
417440, F04B 4900
Patent
active
058037160
ABSTRACT:
A scroll machine has an intermediate pressure cavity which is operable to open and close a leakage path between the discharge zone and the suction zone of the scroll machine. The leakage path is closed when intermediate pressurized fluid is supplied to the cavity and the leakage path is open when the cavity is open to the suction zone of the compressor. A valve (102) which can be mechanical or electrical is used to open and close a passageway extending between the cavity and the suction zone of the machine. A high pressure relief valve is incorporated into the design of the compressor to prevent slugging. The high pressure relief valve will release the intermediate pressurized fluid to suction and/or discharge when the pressure within the intermediate pressure cavity exceeds a predetermined value.
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Anderson Gary J.
Beck Norman G.
Caillat Jean-Luc
Rode Donald W.
Simpson Francis M.
Copeland Corporation
Kim Ted
Thorpe Timothy
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