Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1982-05-26
1984-07-03
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 57, F01C 102, F04C 202
Patent
active
044576765
ABSTRACT:
A scroll type fluid displacement apparatus is disclosed which includes a housing having a front end plate and a cup shaped casing. A fixed wrap extends into an operative interior area of the casing from an inner end surface of an end plate of the cup shaped casing. An orbiting scroll has an end plate from which an orbiting wrap extends, and an opening at the center of the end plate. A drive shaft is rotatably supported by the front end plate and a crank pin extends from its inner end surface. The crank pin is rotatably carried within the opening of the end plate of the orbiting scroll through a bearing to thereby rotatably support the orbiting scroll. The crank pin has a radial flange at its inner end surface and a spring washer is disposed between the radial flange and the bearing to urge the orbiting scroll against the front end plate.
REFERENCES:
patent: 1967957 (1934-07-01), Lucas
patent: 3463091 (1969-08-01), Delsuc
patent: 4259043 (1981-03-01), Hidden et al.
patent: 4314796 (1982-02-01), Terauchi
Olds Theodore
Sanden Corporation
Vrablik John J.
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