Piston cooling nozzle
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United States of America Patent
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Jan 6, 2004
Grant Date -
Jan 9, 2003
app pub date -
Jul 2, 2002
filing date -
Jul 4, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cooling nozzle in accordance with the invention cools the piston of an internal combustion engine. The nozzle includes a nozzle body with a penetrating part shaped to engage in a bore of the engine and to receive a cooling fluid. The nozzle includes an internal valve consisting of a piston guided and sliding in a guide bore of the nozzle body. The piston includes a head oriented in the upstream direction and bearing against an annular seat. The piston is urged towards the annular seat by a compression coil spring. The cooling nozzle for high-pressure engine cooling circuits and incorporating an internal valve obtained therefore has greater durability.
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