Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Reexamination Certificate
2007-04-17
2007-04-17
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
C418S055100, C418S094000, C184S006180
Reexamination Certificate
active
11013443
ABSTRACT:
An oil supply device of a scroll compressor includes a pumping unit mounted at a lower side of a rotating shaft and pumping oil stored at a lower portion of a casing according to rotation of the rotating shaft; an oil supply passage formed in a longitudinal direction of the rotating shaft and supplying oil pumped by the pumping unit to each friction portion; an oil channel formed at an upper surface of the main frame and connecting an oil groove formed at the upper surface of the main frame and a pocket formed at the center of the main frame; and an oil guide recess formed to connect the oil groove and the key hole formed at the main frame and guiding oil introduced into the oil groove to the key hole. By supplying oil to the key hole, abrasion between an oldhamring key and the key hold is prevented and noise is reduced, enhancing reliability of the compressor.
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Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Trieu Theresa
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