Methods of forming a thermally isolated exhaust port

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United States of America Patent

PATENT NO 11473521
SERIAL NO

17305827

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Abstract

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A method of forming a thermally isolated exhaust port, the method comprising placing a chill device around an exhaust port core in a mold for an engine cylinder head, forming the engine cylinder head with an exhaust port using a casting process, generating, in the cylinder head with the exhaust port during the casting process, nodular graphite iron proximate the chill device around the exhaust port core, and forming the thermally isolated exhaust port containing nodular graphite iron in the cylinder head.

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Patent Owner(s)

Patent OwnerAddress
DEERE & COMPANYJOHN DEERE ROAD MOLINE IL 61265

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kessens, Jeremy M Waterloo, US 5 1

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