Device for controlling a hydraulically driven motor
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United States of America Patent
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-
Feb 10, 2009
Grant Date -
Nov 9, 2006
app pub date -
Mar 19, 2004
filing date -
Mar 21, 2003
priority date (Note) -
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Abstract
The present invention relates to an arrangement for controlling a hydraulically driven motor (2), forming part of a hydraulic system in which hydraulic fluid under pressure forms a main flow through a main duct (1) in which the motor is connected. The motor is adapted to drive a load with varying loading, and one or more valves (6, 7) are adapted for controlling the hydraulic fluid flow through the motor on the one hand during operation and on the other hand for starting and stopping of the motor. One of the valves consists of a flow control valve (7) which is connected in the main duct (1) downstream of the motor (2) and is adapted for on the one hand starting/stopping of the motor and on the other hand constant flow control of the hydraulic fluid flow through the motor.
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