Compressor

Details Compressor Compressor

2007-05-31

2010-12-28

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

With means purging, cleaning or separating undesirables from...

C062S470000, C418S089000

Reexamination Certificate

active

07856818

ABSTRACT:
A compressor having a discharge chamber into which compressed refrigerant gas is discharged, a discharge passage connected to the discharge chamber, an oil separation device that centrifugally separate oil from the refrigerant gas, an oil reservoir chamber that communicates with a separation chamber through an oil passage and retains the oil separated from the refrigerant gas, and a filter provided between the separation chamber and the oil passage is disclosed. The oil reservoir chamber communicates with a low pressure zone in the compressor the pressure of which is lower than the pressure in the discharge chamber. The oil reservoir chamber thus supplies the separated oil to the low pressure zone. The oil separation device is arranged in the discharge passage in such a manner as to define the separation chamber. The oil separation device centrifugally separate the oil from the refrigerant gas by causing swirling of the refrigerant gas that has been sent to the separation chamber. The filter extends in a swirling direction of the refrigerant gas in the separation chamber.

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PCT International Search Report (PCT/2007/061076) mailed Jul. 10, 2007.
International Preliminary Report on Patentability mailed on Jan. 22, 2009 for International Application No. PCT/JP2007/061076.

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