Scroll type fluid displacement apparatus with improved end plate

Details Scroll type fluid displacement apparatus with improved end plate Scroll type fluid displacement apparatus with improved end plate

1982-03-09

1985-02-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418142, 418178, F01C 102, F01C 1908

Patent

active

044988524

ABSTRACT:
A scroll type fluid displacement apparatus having a pair of interfitting, relatively orbiting scroll members which define a plurality of moving fluid pockets. A fluid passage through the end plate of one of the scroll members has an elongated shape to reduce contact of the axial end of the other scroll member with the edge of the fluid passage, thereby reducing wear and improving volumetric efficiency.

REFERENCES:
patent: 904209 (1908-11-01), Lyons et al.
patent: 3313239 (1967-04-01), Brunson et al.
patent: 3874827 (1975-04-01), Young
patent: 4160629 (1979-07-01), Hidden et al.

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