Directional valve
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United States of America Patent
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-
Jul 29, 2003
Grant Date -
N/A
app pub date -
Jun 4, 2001
filing date -
Dec 8, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A directional control valve which has a movable control piston (5) which separates two pressure chambers (6, 8) from each other in the valve housing interior, which pressure chambers can be subjected to control pressure in order to move the control piston (5) into axial positions corresponding to relevant switch positions of the valve in accordance with the difference in pressure prevailing between the control chambers (6, 8). An arrangement (29) acts on the control piston (5), produces an actuating force and prestresses the control piston for movement into an axial position corresponding to a desired predetermined position.
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Cited Art Landscape
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