Four-cycle Internal Combustion Engine
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United States of America Patent
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app pub date -
Oct 9, 2014
filing date -
Sep 22, 2011
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Abandoned
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Abstract
A four-cycle engine has an engine block having a cylindrical bore and an enclosed oil reservoir. Lubrication oil is inhaled from the oil reservoir and splashed to lubricate inner parts of the engine. The engine is provided with a cylinder head assembly having a pair of overhead intake and exhaust valves. Reciprocating intermediate lifters are provided between push rod and cam flowers to actuate the valve train. A push rod chamber communicated with the valve chamber is partitioned from the cam chamber and flowing of excess oil from the cam chamber into the valve chamber is prevented. Length of valve train push is shortened and it makes design of high speed engine properly.
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