Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1990-01-17
1991-09-03
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 554, 295251, 29888022, 403378, F04C 1804, F04C 2700, F16B 902, F16B 1700
Patent
active
050449044
ABSTRACT:
A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member assembly, an orbiting scroll member assembly, a frame member, and a crankshaft. The fixed and orbiting scroll member assemblies each include a separately formed involute wrap member interconnected with a plate member by means of a plurality of pin members received within corresponding axial bores in the wrap member and plate member, respectively. The plate member of the fixed scroll member assembly is mounted to the frame member, while the plate member of the orbiting scroll member assembly is mounted to a drive hub member operably coupled to the crankshaft. In one embodiment, the interconnecting pin members fit loosely within the bores in the wrap member such that the wrap member is movable with respect to the plate member, thereby providing radial compliance between the fixed and orbiting scroll member assemblies during compressor operation.
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Tecumseh Products Company
Vrablik John J.
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