Coupling for use with a gerotor device

Details Coupling for use with a gerotor device Coupling for use with a gerotor device

1997-05-23

2000-02-01

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F01C 110

Patent

active

060195843

ABSTRACT:
A coupling arrangement (63;107;229) for use in a fluid pressure device including a gerotor gear set (15;83;205). The gerotor gear set includes an orbiting and rotating star (21;95;209). In a motor embodiment (FIGS. 1-4 and FIG. 6), the coupling (63;229) transmits the orbital and rotational movement of the star (21;209) to an output shaft (29;203). In a steering unit embodiment (FIG. 5) the orbital and rotational movement of the star (95) is transmitted as rotational follow-up movement to a sleeve valve (101). In either case, the invention eliminates the need for the conventional solid dogbone arrangement, thus making the device much less expensive and more compact, and giving the designer greater flexibility with regard to various options, such as the provision of thru-shaft capability for a motor.

REFERENCES:
patent: 1284650 (1918-11-01), Gollings
patent: 3087436 (1963-04-01), Dettloff et al.
patent: 3270682 (1966-09-01), Charlson
patent: 3782866 (1974-01-01), McDermott
patent: 4171938 (1979-10-01), Pahl
patent: 4359866 (1982-11-01), Tischer
patent: 4439119 (1984-03-01), Petersen et al.
patent: 5056994 (1991-10-01), Eisenmann et al.
patent: 5100310 (1992-03-01), Uppal

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