Hydraulic control valve with pressure sensing means
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United States of America Patent
Stats
-
Jan 1, 1991
Issued Date -
N/A
app pub date -
Nov 27, 1989
filing date -
Jan 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic control valve and sensing mechanism for controlling flow between a motor and a pump and container that includes a slide mounted in a housing bore for movement between a neutral position and two operative position. The slide has a central collar separated from end collars by slide grooves, profilings on diametric opposite sides of the slide grooves intersecting each groove. The housing bore has a pump groove supplied with pressure medium, axially opposite motor grooves connectable to motor conduits, and axially opposite the motor grooves from the pump grooves there are container grooves connectable to the container. The pressure sensing mechanism includes at least one pressure sensing orifice that is connected to the pressure to be sensed in an operative position of the slide but not being fluidly connected thereto when the slide is in its neutral position.
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Family
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Cited Art Landscape
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