Invention Application
- Patent Title: VALVE SEAT FOR AUTOMOTIVE CYLINDER HEAD
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Application No.: US17101425Application Date: 2020-11-23
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Publication No.: US20220162968A1Publication Date: 2022-05-26
- Inventor: Daniel J. Wilson , Huaxin Li , Edward J. Keating , Liang Wang , Devin R. Hess
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F01L3/02
- IPC: F01L3/02 ; C22C9/06 ; B23K26/34 ; B23K35/30

Abstract:
A valve seat formed within an aluminum engine component includes a valve seat surface machined within the aluminum engine component, a layer of copper alloy material laser clad onto the valve seat surface of the aluminum engine component, the layer of copper alloy material having a thickness of less than 2.0 millimeters, and a layer of copper alloy/tool steel carbide material laser clad onto the layer of copper alloy material, the layer of copper alloy/tool steel carbide material having an average thickness of less than 0.5 millimeters, wherein the layer of copper alloy/tool steel carbide material has an outer surface that is machined to a final valve seat profile.
Public/Granted literature
- US11639672B2 Valve seat for automotive cylinder head Public/Granted day:2023-05-02
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