Gerotor motor and improved lubrication flow circuit therefor

Details Gerotor motor and improved lubrication flow circuit therefor Gerotor motor and improved lubrication flow circuit therefor

1985-11-06

1987-02-24

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418102, F01C 110, F01C 2104, F03C 208

Patent

active

046454381

ABSTRACT:
A rotary fluid pressure device (11) is disclosed of the type having a fluid displacement means (17), an inlet port (57), an outlet port (61) and a valve means (55) which cooperates with a housing (21;101;201) to define a main flow path communicating from the inlet to the volume chambers of the mechanism (17) and then to the outlet. The device includes an arrangement such as an orifice (89) or shuttle valve (111) having its inlet in communication with the main flow path downstream of the contracting volume chambers (29). The motor includes a lubricant flow path (81,83; 107,109; 207) which provides lubricant to the bearings and shaft splines. The orifice (89) or shuttle valve (111) provides a generally constant flow of lubricant despite variations in the motor load or motor speed.

REFERENCES:
patent: 3862814 (1975-01-01), Swedberg
patent: 3895689 (1975-07-01), Swearingen
patent: 4035113 (1977-07-01), McDermott
patent: 4171938 (1979-10-01), Pahl
patent: 4343601 (1982-08-01), Thorson
patent: 4533302 (1985-08-01), Begley

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