Rotation preventing device for an orbiting member of a fluid dis

Details Rotation preventing device for an orbiting member of a fluid dis Rotation preventing device for an orbiting member of a fluid dis

1986-04-23

1987-02-24

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

384614, 464103, F01C 104, F01C 2102, F16C 1916, F16D 304

Patent

active

046454357

ABSTRACT:
A rotation preventing/thrust bearing device for a scroll type fluid displacement apparatus is disclosed. The rotation preventing/thrust bearing device includes a fixed portion, an orbital portion and balls. The fixed and orbital portions each include an annular race and a ring which covers the end surface of the race. Both rings have a plurality of holes or pockets in an axial direction. The balls are placed between the facing holes in the ring, and are in contact with both races to carry the thrust load from the orbiting scroll member. All balls are rotatably held on a retainer which is disposed in an axial clearance between the facing rings.

REFERENCES:
patent: 801182 (1905-10-01), Creux
patent: 847069 (1907-03-01), Hawkins
patent: 1907447 (1933-05-01), Schiltz
patent: 2072515 (1937-03-01), Delaval-Crow
patent: 2883244 (1959-04-01), Berger
patent: 4160629 (1979-07-01), Hidden et al.
patent: 4259043 (1981-03-01), Hidden et al.
patent: 4468181 (1984-08-01), Sakamoto

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