Scroll-type fluid machine with eccentric ring drive mechanism

Details Scroll-type fluid machine with eccentric ring drive mechanism Scroll-type fluid machine with eccentric ring drive mechanism

1984-03-22

1986-04-29

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 94, F04C 1804, F04C 2900

Patent

active

045854025

ABSTRACT:
A scroll-type fluid machine, preferably, a scroll-type compressor, having a small size and improved sealing between scroll members. An orbiting scroll is interleaved with a stationary scroll. A crank mechanism is provided for causing the orbiting scroll to undergo an orbiting motion. The crank mechanism includes a crankshaft and an eccentric ring rotated in an eccentric pattern by the crankshaft. Orbital movement of the orbiting scroll is transmitted from the eccentric ring to a shaft of the orbiting scroll. The distance between the center of rotation of the crankshaft and the center of the orbiting scroll shaft is made substantially equal to the radius of orbit when the center of rotation of the crankshaft, the center of the orbiting scroll shaft, and the center of rotation of the eccentric ring are arranged along a straight line in the stated order.

REFERENCES:
patent: 4065279 (1977-12-01), McCullough
patent: 4403927 (1983-09-01), Butterworth et al.
patent: 4468181 (1984-08-01), Sakamoto

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