Method for controlling a hydraulic motor and a hydraulic valve therefor
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United States of America Patent
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-
Aug 15, 1995
Grant Date -
N/A
app pub date -
Jan 7, 1994
filing date -
Jan 14, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for controlling a hydraulic motor with a hydraulic valve comprising an inlet section which includes a pump and tank connection and a maneuvering section having a slide (B1) and a load signal system (L1, L2, L3). The hydraulic valve also includes two regulating constrictions (S3, S4) which can be connected to and from a motor (C), such as a hydraulic piston-cylinder device. The maneuvering slide (B1) also includes a load level detecting constriction (S2) and a load signal drain (S5), and the pump generates an idling pressure. When maneuvering the maneuver slide (B1), the load signal Ps of the load signal system is increased by a further constriction (S1) located between the pump connection and that side of the load detecting constriction (S2) that has the higher pressure during the maneuvering process.
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