Actuation system for a servo-assisted mechanical transmission with oil leakage recovery
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United States of America Patent
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May 17, 2011
Grant Date -
Jan 22, 2009
app pub date -
Jun 4, 2008
filing date -
Jun 4, 2007
priority date (Note) -
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Abstract
An actuation system for a servo-assisted transmission; the actuation system is provided with: a hydraulic circuit comprising a reservoir containing a control fluid, a hydraulic accumulator containing the pressurized control fluid, and a pump which draws from the reservoir and feeds the hydraulic accumulator; at least a hydraulic actuator comprising at least one actuation chamber and a mobile piston which slides within the actuation chamber; a solenoid valve for connecting the actuation chamber of the hydraulic actuator to the hydraulic accumulator and to the reservoir; and a recirculation circuit, which departs from at least one environment bordering with the actuation chamber of the hydraulic actuator and ends in the reservoir.
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