Lightweight internal combustion engine with a ferrous reinforced cylinder block
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United States of America Patent
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Nov 20, 2018
Grant Date -
Oct 27, 2016
app pub date -
Apr 21, 2016
filing date -
Apr 23, 2015
priority date (Note) -
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Abstract
An internal combustion engine includes a cylinder block made of a first material having a plurality of cylinders and an insert made of a second material having a greater stiffness and a lower thermal coefficient of expansion than the first material and casted-in-place into the cylinder block. For each cylinder of the cylinder block, the insert includes a bolted anchor having a first threaded bore suitable to be engaged by an head bolt for fixing a cylinder head to the cylinder block, and a second threaded bore suitable to be engaged by a cap bolt for fixing a main bearing cap to the cylinder block, and a lubrication gallery connected to a plurality of the anchors.
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