Oiling structure for engine
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United States of America Patent
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Oct 6, 2015
Grant Date -
Mar 20, 2014
app pub date -
Aug 14, 2013
filing date -
Sep 20, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A lower cam housing is formed to be a separate body from a cylinder head and the lower cam housing is arranged at a joint surface of the cylinder head, a first upper oil passage reaching from an oil entry passage to the joint surface is formed inside the cylinder head and an upstream end of the first upper oil passage is opened at the joint surface, and a second upper oil passage through which the oil reaches to the joint surface via an upper side than the joint surface is formed in the lower cam housing, where an upstream end of the second upper oil passage is in communication with the oil entry passage side at the joint surface, and a downstream end of the second upper oil passage is in communication with the first upper oil passage at the joint surface.
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