Two-speed gerotor motor

Details Two-speed gerotor motor Two-speed gerotor motor

1983-01-17

1984-11-06

Cline, William R.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F01C 102, F03C 300

Patent

active

044809719

ABSTRACT:
A two-speed gerotor motor is disclosed of the type including a rotary disc valve member (55) of the type including valve passages (71 and 69) communicating between the inlet and outlet ports (61 and 65), respectively, and the fluid passages (57) defined by the port plate (19). The valve (55) also defines control valve passages (73) which communicate with an annular groove (75). Adjacent the valve member (55) is a valve seating mechanism (83) including a balancing ring member (85) which defines a plurality of axial passages (89) providing communication between a control fluid port (77) and the annular groove (75). As a result, the control valve passages may be communicated selectively with either the expanding volume chambers (29E) or the contracting volume chambers (29C).

REFERENCES:
patent: 3778198 (1973-12-01), Giversen
patent: 3799201 (1974-03-01), Hansen et al.
patent: 3892503 (1975-07-01), Getman
patent: 4181067 (1980-01-01), Ortelli

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