Hydraulic lash adjuster, a valve train comprising the same and a method of assembling the same
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United States of America Patent
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Aug 12, 2014
Grant Date -
Nov 14, 2013
app pub date -
May 8, 2013
filing date -
May 8, 2012
priority date (Note) -
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Abstract
A hydraulic lash adjuster includes a body and a plunger assembly slideably mounted with respect to the body. A first chamber is defined by the body and the plunger assembly and is configured to contain a hydraulic fluid. A second chamber is configured to supply the hydraulic fluid to the first chamber through a valve disposed between the first and second chambers in response to a movement of the plunger assembly that increases the volume of the first chamber. An aperture opens into the second chamber. A stopper is insertable into the aperture during use of the hydraulic lash adjuster such that the stopper restrains the hydraulic fluid from exiting the second chamber through the aperture and enables air to exit the second chamber through the aperture.
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