- Patent Title: Hybrid cam bore sand core with metal chills for cast aluminum block
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Application No.: US17163926Application Date: 2021-02-01
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Publication No.: US11554413B2Publication Date: 2023-01-17
- Inventor: Ronald J. Petrus , Qigui Wang , Richard M. Nichols, III , Brian C. Leuenhagen
- 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
- Agency: Vivacqua Crane PLLC
- Main IPC: B22D15/02
- IPC: B22D15/02 ; B22D15/04 ; B22C9/10 ; F02F1/00

Abstract:
A system for making a hybrid cam bore sand core with metal chills for an engine block includes an engine block cast of an aluminum material. A camshaft bore extends through the engine block. A cam bore sand core with at least one metal chill is positioned within the camshaft bore. A body portion of the at least one metal chill is positioned in direct contact with a cam bearing surface of at least one cam bearing member during casting of the engine block to increase a cooling rate of the at least one cam bearing member and create a crystalline material depth of the cam bearing member having enhanced mechanical properties.
Public/Granted literature
- US20220241851A1 HYBRID CAM BORE SAND CORE WITH METAL CHILLS FOR CAST ALUMINUM BLOCK Public/Granted day:2022-08-04
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