ELECTRONICALLY SWITCHABLE BI-STATE ENGINE MOUNT
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Dec 18, 2009
filing date -
Dec 18, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electronically switchable bi-state engine mount includes a housing having an inertia track received in the housing between first and second fluid chambers. A fluid damped first path communicates between the chambers, and a non-damped second path or bypass opening also communicates between the chambers. A diaphragm encloses a portion of the second fluid chamber and a seal member on the diaphragm operatively cooperates with a solenoid plunger, where the solenoid is received in the housing to selectively open and close the second path. The diaphragm is enclosed by a cover, which is preferably metal, to enhance thermal conductivity and heat sink properties thereof and improve the useful life of the solenoid.
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