Cooling and lubricating system for a piston sealing device
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United States of America Patent
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Apr 30, 2019
Grant Date -
Jun 29, 2017
app pub date -
Dec 21, 2016
filing date -
Dec 24, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The cooling and lubricating system is provided for a piston sealing device for a piston, which includes a fixed skirt and a sliding skirt joined together by an interskirt mechanical connection to axially compress a continuous extensible segment under the action of a sliding skirt spring. The system adds to the device a sliding skirt thrust ring so as to insert between the fixed skirt and the continuous extensible segment a flow valve traversed by the interskirt mechanical connection. The valve is held at rest away from the fixed skirt by a valve return spring on the one hand, and including a flow calibration orifice on the other hand.
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