F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 1/04 (2006.01) F04C 18/02 (2006.01) F04C 23/00 (2006.01) F04C 27/00 (2006.01)
Patent
CA 2353045
In a scroll compressor that can switch between an internal high-pressure operation and an internal low-pressure operation, in order to provide proper back pressure for an orbiting scroll during either operation, a back pressure chamber of the orbiting scroll is divided by means of a first and a second thrust rings into a first back pressure chamber in communication with a driving chamber and an independent second back pressure chamber, and the pressure in the second back pressure chamber is set at discharge pressure or suction pressure depending on an operation mode.
Fujitsu General Limited
Gowling Lafleur Henderson Llp
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