Hydraulic lash adjuster for internal combustion engine
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United States of America Patent
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Jul 23, 2013
Grant Date -
Feb 23, 2012
app pub date -
Jun 10, 2009
filing date -
Jun 10, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulic lash adjuster capable of retaining a Large amount of hydraulic oil in a reservoir communicated with a high-pressure chamber when the engine is stopped. The hydraulic lash adjuster including: a cylindrical body (24) having an upper open end, a closed bottom, and a second oil supply hole (27a) formed in the sidewall of the cylindrical body; and a plunger having a top end serving as a plunging end, a sidewall, a bottom end, a high pressure chamber (29) at the lower bottom, and a first oil supply hole (24b) formed in the sidewall, the plunger being slidabic on the inner wall of the body. The plunger has a reservoir (28) that communicates with an external oil supply line (32) via the first oil supply hole (24b) and the second oil supply hole (27a).
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