Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mirco Allegretti0
Date of Patent
October 21, 2008
0Patent Application Number
115815790
Date Filed
October 17, 2006
0Patent Primary Examiner
Patent abstract
The present invention relates to the field of units for hydraulic pilot control of directional-control valves used in the fabrication of mobile vehicles and particularly relates to a hydraulic pilot control with an oscillation damping system. Connections are provided among the chambers in the pilot control unit to provide a damping effect in the actuation stroke, thereby preventing any oscillation: the provision of such connections among the chambers has the function of preventing air stagnation; this arrangement prevents any undamped behavior due to incomplete filling upon installation or to air transported in the hydraulic fluid.
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