Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1990-03-05
1991-05-21
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 88, 418 94, 418171, 417205, 184 618, F04C 1804, F04C 2902, F04B 2312
Patent
active
050171089
ABSTRACT:
A scroll compressor comprises an orbiting scroll and a fixed scroll, each of which has a wrap formed on an end plate in upstanding position. These orbiting and fixed scrolls are assembled together with the wraps facing inwardly to each other so as to define a plurality of spaces by the wraps and the end plates of both scrolls. These spaces move toward the center of both scrolls during the orbiting movement of the orbiting scroll so as to reduce the respective capacities of the spaces. Thus, compression of a fluid is carried out. This compressor also includes a motor for driving the orbiting scroll and a driving shaft for connecting the orbiting scroll and the motor. At the end of the driving shaft on the motor side, a first oil supply pump is provided with its suction port communicating to an oil sump of the compressor. Also, a second oil supply pump communicating with the discharge side of the second oil supply pump is provided at the end of the driving shaft on the compressor section side, whereby the oil supply pump of the compressor is made of a multistage type.
REFERENCES:
patent: 3317123 (1967-05-01), Funke
patent: 3583371 (1971-06-01), King
patent: 4403927 (1983-09-01), Butterworth et al.
patent: 4462772 (1984-07-01), Hazaki et al.
patent: 4609334 (1986-09-01), Muir et al.
patent: 4623306 (1986-11-01), Nakamura et al.
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patent: 4792296 (1988-12-01), Kobayashi et al.
Mizuno Takao
Murayama Akira
Sakurai Kazuo
Tamura Takahiro
Uchikawa Naoshi
Hitachi , Ltd.
Vrablik John J.
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