Involute scroll-type positive displacement rotary fluid apparatu

Details Involute scroll-type positive displacement rotary fluid apparatu Involute scroll-type positive displacement rotary fluid apparatu

1981-10-19

1984-01-03

Vrablik, John J.

Pumps

Motor driven

Electric or magnetic motor

418 55, 418 60, 464103, 464105, F04B 1700, F04C 202

Patent

active

044240104

ABSTRACT:
A scroll-type fluid motor or pump is provided with a roller Oldham coupling and bearing for guiding the orbiting scroll wrap relative to the fixed wrap, the coupling including plural, equal diameter cylindrical rollers disposed in overlapping but equally offset cylindrical openings forming bearing surfaces for the rollers. The diameter of each roller is such as to maintain the offset distance so that the orbiting scroll wrap is precisely guided relative to a fixed scroll wrap, whereby radial loads are fully carried by large rolling surfaces provided by the rollers. A magnetic drive system for the orbiting scroll is also disclosed.

REFERENCES:
patent: 916914 (1909-03-01), Cooley
patent: 1041721 (1912-10-01), Ball
patent: 1884976 (1932-10-01), Johnson
patent: 3011694 (1961-12-01), Audemar
patent: 4013384 (1977-03-01), Oikawa
patent: 4192152 (1980-03-01), Armstrong et al.

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