Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1985-09-11
1986-07-15
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 57, F01C 104, F01C 1900
Patent
active
046003690
ABSTRACT:
Skating movement of seals in a positive displacement scroll apparatus having two scrolls which rotate with each other and additionally undergo relative orbiting movement, is avoided in a pressure balancing cavity construction by providing a chamber defining element which is coupled by bolts to the scroll. The seals thus rotate with the scrolls and move only across their short dimension as the scrolls undergo relative orbiting movement.
REFERENCES:
patent: 3600114 (1971-08-01), Dvorak et al.
patent: 3884599 (1975-05-01), Young et al.
patent: 3994633 (1976-11-01), Shaffer
patent: 4178143 (1979-12-01), Thelen et al.
patent: 4357132 (1982-11-01), Kousokabe
patent: 4475874 (1984-10-01), Sato
Sundstrand Corporation
Vrablik John J.
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