Scroll fluid apparatus with displaced centers for the scroll mem

Details Scroll fluid apparatus with displaced centers for the scroll mem Scroll fluid apparatus with displaced centers for the scroll mem

1983-04-01

1985-01-22

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F01C 102

Patent

active

044949146

ABSTRACT:
A scroll fluid apparatus including a stationary scroll member having an end plate of a disc shape and a spiral wrap disposed in upright position on the end plate and formed with a suction chamber defined by an arcuate wall of an outer peripheral portion of the wrap, and an orbiting scroll member having an end plate of a disc shape and a spiral wrap disposed in upright position on the end plate. The stationary scroll member and the orbiting scroll member mesh with each other to allow the orbiting scroll member to move in orbiting movement with respect to the stationary scroll member. The stationary member is formed with an exhaust port opening and a suction port so that gas is drawn by suction through the suction port and compressed in compression spaces defined by the two scroll members to thereby be discharged as compressed gas through the exhaust port. The orbiting scroll member and the stationary scroll member have the centers of their disc-shaped end plates displaced from the centers of base circles of the respective spiral wraps toward outer end edge portions of the wrap by .pi.a/2 where .pi. is the ratio of the circumference of a circle to its diameter and a is the radius of the base circles of the spiral wraps.

REFERENCES:
patent: 3884599 (1975-05-01), Young et al.

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