Hydraulic motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 1982
Grant Date -
N/A
app pub date -
Apr 24, 1980
filing date -
Apr 24, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic motor has a stationary housing, a hollow rotor having a plurality of hollow radially extending pistons each provided with two concentric annular walls forming inner and outer chambers communicating with separate fluid-conveying passages, a plurality of cylinders displaceable over the pistons and each having a projection received in the inner chamber of the respective piston, and a central control member having a plurality of fluid-conveying passages cooperating with the fluid-conveying passages of the pistons and displaceable in the axial direction between a plurality of operating positions.
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