Internally shafted planetary piston engine

Details Internally shafted planetary piston engine Internally shafted planetary piston engine

1981-07-29

1984-02-21

Smith, Leonard E.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418102, F03C 200

Patent

active

044327099

ABSTRACT:
The invention relates to a hydraulic pump or motor having inlet and outlet ports and expansible chamber section at one end thereof, which may be a gerator gear set, and a drive shaft at the other end thereof. A distributor valve driven by the drive shaft and having a central bore directs fluid between the inlet and outlet ports in the housing and the expansible chamber section. A shaft, such as a cardan shaft, disposed in the central bore of the valve provides a driving connection between the valve and the expansible chamber forming section. Although a bearing is provided in the housing for the drive shaft, the distributor valve is also subjected to radial loads because the cylindrical surface thereof has a close fitting sealing relationship with the housing bore in which it is rotatably disposed. Lubrication for both ends of the cylindrical surface of the valve is provided by passages extending from valve passages which carry the motive fluid controlled by the valve.

REFERENCES:
patent: 2877668 (1959-03-01), Kelbel
patent: 3385057 (1968-05-01), Pruvot et al.
patent: 3871798 (1975-03-01), Berlich
patent: 4323335 (1982-04-01), Hansen

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