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US 10,519,896 B2Granted
Semi-compliant coating for thermal expansion absorption
AssigneeFord Global Technologies, LLC
InventorChristopher Donald Wicks
Life of this patent
Estimating the term…
Abstract
An engine cylinder head includes an internal metal structure forming an upper portion of a combustion chamber. The internal metal structure includes a semi-compliant coating configured to absorb thermal expansion of the internal metal structure. The engine cylinder head also includes a polymer composite forming an external structure at least partially surrounding the internal metal structure.
Claims18
An engine cylinder head comprising:
- an internal metal structure forming an upper portion of a combustion chamber, the internal metal structure having an outer surface, at least a portion of the outer surface being coated with a semi-compliant coating configured to absorb thermal expansion of the internal metal structure, the semi-compliant coating being an elastomer or vulcanized material;
- and
- a polymer composite forming an external structure over-molded onto and at least partially surrounding the internal metal structure, the external structure defining an oil intake feed, an exhaust oil feed, a cam oil feed, or a cam bearing oil feed.
An engine cylinder head comprising:
- an internal metal structure defining an outer surface;
- a semi-compliant coating disposed on an entire surface of the outer surface and configured to absorb thermal expansion of the internal metal structure;
- and
- an external polymer composite structure at least partially surrounding the outer surface and defining an oil intake feed, an exhaust oil feed, a cam oil feed, or a cam bearing oil feed.
1 more element
An engine system comprising:
- an engine cylinder head including an internal metal structure defining an outer surface, the outer surface including a semi-compliant coating configured to absorb thermal expansion of the internal metal structure, the semi-compliant coating having a shore hardness of 60 to 80 Shore D;
- and
- an external polymer composite structure over-molded onto and at least partially surrounding the internal metal structure, the external polymer composite structure defining an oil intake feed, an exhaust oil feed, a cam oil feed, or a cam bearing oil feed.
Dependencies are inferred from the claim text.