Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1979-10-03
1981-12-08
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
F04C 1802
Patent
active
043045359
ABSTRACT:
A scroll-type compressor unit including fixed and orbiting scroll members contained within a cylindrical housing. Each scroll member has an end plate and a spiral element.
In order to reduce the radius of the cylindrical housing, the end plate of the orbiting scroll member is a circular plate having a radius of (a+R/2) at a minimum, and the center of the spiral element of the orbiting scroll member is offset from the center of the end plate by R/2 towards the terminal end of the spiral element, where the radius of the orbital motion of the orbiting scroll member is R, and the distance between the center and the terminal end of each spiral element is a. The fixed scroll member is disposed in the cylindrical housing so that the center of the cylindrical housing is offset from the center of the spiral element towards the terminal end of the spiral element thereof by R/2. In this arrangement, the inner radius of the cylindrical compressor housing is reduced to (a+3R/2) at a minimum.
REFERENCES:
patent: 801182 (1905-10-01), Creux
patent: 3560119 (1971-02-01), Busch et al.
patent: 3884599 (1975-05-01), Young et al.
patent: 3924977 (1975-12-01), McCullough
patent: 4065279 (1977-12-01), McCullough
Sankyo Electric Company Limited
Vrablik John J.
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