Dual feed hydraulic lash adjuster for valve actuating mechanism
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United States of America Patent
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Oct 13, 2015
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N/A
app pub date -
Mar 20, 2014
filing date -
Mar 25, 2013
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Abstract
A dual feed hydraulic lash adjuster includes a plunger assembly slidingly disposed in a lash adjuster body and having an end adapted to cooperate with a valve actuating mechanism, the plunger assembly forming a low-pressure first chamber and a high-pressure second chamber with the body, the plunger assembly having a first aperture fluidly communicating with the first chamber, a passageway fluidly communicating with the first chamber, and a second aperture fluidly communicating with the passageway, and a separate fluid pressure separator disposed in the plunger assembly between the first aperture and the second aperture to prevent passage of hydraulic fluid between the first chamber and the passageway, wherein a passage is provided through the fluid pressure separator to provide for evacuation of air from the lash adjuster.
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