Method and apparatus for controlling axial pump
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United States of America Patent
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-
Nov 9, 1999
Issued Date -
N/A
app pub date -
Nov 25, 1997
filing date -
Feb 8, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control system, method and apparatus are provided in which a rotatable wedge portion which is solidly mounted on a rotatable base engages piston and cylinder assemblies as the base rotates. In another embodiment the rotatable base is not affixed to the shaft, but instead is allowed to rotate with respect to the shaft, while the shaft is affixed to the cylinder and piston, which rotate with the shaft. The wedge is rotatable through various positions relative to the base, thus providing an adjustable tilt angle and different strokes for the pistons. In another embodiment, the single wedge is replaced by a double wedge assembly.
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