Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1997-06-04
1999-08-03
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 554, 418 556, 418 94, 418 99, F04C 1804, F04C 2902
Patent
active
059316500
ABSTRACT:
A hermetic electric scroll compressor includes a fixed scroll and an orbiting scroll which define therebetween a plurality of compression spaces for compressing fluid introduced via a suction port. The orbiting scroll has a base plate and a shaft portion extending from the base plate toward a crankshaft rotatably supported by a support member. A seal member is disposed between the base plate and the support member to define an inner region and an outer region. The shaft portion is exposed to the inner region, while the outer region communicates with the suction port. The shaft portion is formed with an axial hole open to the inner region, while the base plate is formed with a radial hole open to the outer region. Communication is established between the axial and radial holes via a small-diameter hole so that lubricating oil supplied to the inner region is introduced into the outer region via the small-diameter hole for feeding to the compression spaces via the suction port.
REFERENCES:
patent: 5178527 (1993-01-01), Jung
patent: 5217359 (1993-06-01), Kawahara et al.
patent: 5645408 (1997-07-01), Fujio et al.
Aburaya Kiyoji
Aoshika Shoji
Narita Tsutayoshi
Sakai Manabu
Takeuchi Yoshiharu
Matsushita Electric - Industrial Co., Ltd.
Vrablik John J.
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