Hydraulic axial piston engine
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United States of America Patent
Stats
-
Aug 31, 1982
Grant Date -
N/A
app pub date -
Nov 2, 1979
filing date -
Nov 4, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The hydraulic axial piston engine has a rotary shaft and a stationary control plate symmetrically connected to a two-piece housing supporting for rotation the shaft. Two stationary lifting cams are arranged opposite each other at the end walls of the housing around the shaft; two rotary cylinder blocks are supported for joint rotation on the shaft and each adjoins a face of the control plate; the end walls of the cylinder blocks facing the cams are provided with a plurality of uniformly distributed and axially directed blind bores for accommodating working pistons. The end walls in each blind bore has a through passage for working fluid and the control plate in the range of the passages has a plurality of uniformly distributed control openings connected alternately to two annular distributing channels formed in the plate, one of the channels being connected to an intake port and the other channel to a discharge port for the working fluid. The ends of the pistons are provided with thrust balls engaging the sinusoidal cam surface of the lifting cams.
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