Engine system and a method of manufacturing same
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United States of America Patent
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Aug 11, 2015
Grant Date -
Nov 21, 2013
app pub date -
Apr 30, 2013
filing date -
May 21, 2012
priority date (Note) -
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Abstract
An engine system is disclosed in which the transfer of heat from pressurized oil flowing through an integrally formed oil transfer passage of the engine is reduced by providing a thermal barrier between the oil and the engine. In one example the thermal barrier is provided by the use of a thick walled plastic tube and in other embodiments ribs are used to separate an oil flow passage from the engine.
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