Scroll compressor with improved bearing

Details Scroll compressor with improved bearing Scroll compressor with improved bearing

1991-01-08

1992-08-11

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 553, 418151, 384209, F04C 1804, F04C 2900, F16C 2304

Patent

active

051374374

ABSTRACT:
A scroll compressor has an orbiting scroll which operatively meshes with a stationary scroll to define compression chambers therebetween. This orbiting scroll is driven by an electric motor through a crank-shaft, and makes an orbiting movement while being prevented from rotating about its own axis by a rotation preventing member. The crankshaft is journalled by at least two sliding bearings which are arranged respectively on the both sides of the electric motor, and the mast remotely distanced bearing from the orbiting scroll has a self-aligning function which enables it to change its attitude in accordance with any inclination of the crankshaft. Further, a balance and a counter weight are provided on the crankshaft to counterbalance the centrifugal force produced by the orbiting scroll and the inertial force produced by the rotation preventing member.

REFERENCES:
patent: 1276613 (1918-08-01), Bergman
patent: 4201521 (1980-05-01), Carlson
patent: 4449891 (1984-05-01), Kemmner
patent: 4666381 (1987-05-01), Butterworth
patent: 4834623 (1989-05-01), Triolo et al.
patent: 4898520 (1990-02-01), Nieter et al.

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