Internal gear machine with variable capacity

Details Internal gear machine with variable capacity Internal gear machine with variable capacity

2007-03-27

2007-03-27

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With changeable working chamber magnitude

Intermeshing rotary members

C418S020000, C418S028000, C418S171000

Reexamination Certificate

active

10519244

ABSTRACT:
A fluidic machine has a fixed body, an external orbital member rotatable around a first rotational axis and internal gear teeth including a first teeth number, a transmission member rotatable around a second rotational axis, an internal orbital member supported by the transmission member, having external gear teeth including a second teeth number different from the first teeth number and meshing with the internal gear teeth of the external orbital member, thus determining among the gear teeth of the two orbital members spaces whose volume is variable during rotation. One of the orbital members is mounted axially displaceable and is pushed by an elastic push member in the direction producing a more extended engagement with the other orbital member, and a piston, mounted displaceable within the non-axially displaceable orbital member and resting against the axially displaceable orbital member, is subjected, to the pressure of the high pressure connection.

REFERENCES:
patent: 1486682 (1924-03-01), Phillips
patent: 1773211 (1930-08-01), Wilsey
patent: 2484789 (1949-10-01), Hill et al.
patent: 3687578 (1972-08-01), White et al.
patent: 4740142 (1988-04-01), Rohs et al.
patent: 862094 (1953-01-01), None
patent: 2 243 208 (1974-03-01), None
patent: 859793 (1961-01-01), None
Patent Abstracts of Japan vol. 005, No. 068 (M-067), May 8, 1981 & JP 56 020788 A (Fujita Minoru), Feb. 26, 1981 abstract.
Patent Abstracts of Japan vol. 001, No. 023 (M-011), Mar. 25, 1977 & JP 51 137903 A (Aisin Seiki Co Ltd), Nov. 29, 1976.

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