Scroll compressor improved in function of oil circulation...

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

Reexamination Certificate

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Details

C418S055600, C418S057000, C418S094000, C418S270000, C418SDIG001

Reexamination Certificate

active

08075291

ABSTRACT:
Provided is a scroll compressor having an improved function of oil circulation and back pressure control. The scroll compressor includes: a housing; a drive part for generating a rotational force; a drive shaft driven by the drive part; and a scroll compression part including a stationary scroll fixed regardless of rotation of the drive shaft and having a scroll wrap for compressing sucked fluid and a discharge port for supplying coolant into a discharge chamber, and an orbiting scroll orbited depending on rotation of the drive shaft and having a scroll wrap, characterized in that the coolant compressed by the scroll compression part is conveyed to the discharge chamber, the coolant of the discharge chamber is separated into oil and gas in an oil separator, the gas being discharged through a discharge hole and the oil being supplied into a back pressure chamber through a return path formed in the stationary scroll, and the oil is returned into a suction chamber through a back pressure adjustment valve.

REFERENCES:
patent: 6152713 (2000-11-01), Hisanaga et al.
patent: 62126282 (1987-06-01), None
patent: 64000382 (1989-01-01), None
patent: 04143489 (1992-05-01), None
patent: 06235387 (1994-08-01), None
patent: 10-196562 (1998-07-01), None
patent: 2006-29185 (2006-02-01), None
patent: 2006-118511 (2006-05-01), None
patent: 10-1998-050613 (1998-09-01), None
patent: 10-0141079 (2003-12-01), None
patent: 10-2005-0073143 (2005-07-01), None
International Search Report of PCT/KR2007/002845, dated Jul. 30, 2007.

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