Position control device for a hydraulic actuator and interface plate for a servovalve implementing such a device
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United States of America Patent
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N/A
Issued Date -
Jun 23, 2005
app pub date -
Jul 23, 2004
filing date -
Dec 23, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a position control device for a hydraulic actuator, such device comprising a hydraulic circuit comprising a pump supplying the two chambers of the actuator from a hydraulic tank or reserve by means of a servovalve, each outlet of the servovalve being connected to a chamber of the actuator by means of a non return valve. This such device is characterized in that at least one of the outlets of the servovalve connected a chamber of the actuator is also connected to the hydraulic tank by a calibrated nozzle upstream of the non return valve. The invention also relates to an interface plate for a servovalve allowing such a device to be implemented. The invention can namely be applied to the open loop and/or closed loop servo control of the laying of a gun barrel.
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