Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1988-05-12
1989-10-24
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 88, 418 94, 184 618, F04C 1804, F04C 2902, F01M 1102
Patent
active
048758400
ABSTRACT:
A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, a main bearing frame member, and a crankshaft. An oil sump is located in a discharge pressure chamber in the housing. The crankshaft is journalled by bearings in the frame member and the orbiting scroll member. A centrifugal oil pump supplies lubricating oil from the sump to the bearings through an axial passageway in the crankshaft. A vent allows the pumped oil to return to the sump to reduce leakage of oil and refrigerant into regions at suction pressure.
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Barito Thomas R.
Johnson William C.
Richardson, Jr. Hubert
Ahlersmeyer David L.
Hoffman John F.
Jeffers Albert L.
Tecumseh Products Company
Vrablik John J.
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