The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1994
Filed:
Jan. 15, 1992
Karl D Voss, Farmington Hills, MI (US);
Thomas E Prucha, Brighton, MI (US);
John W Kuhn, Bristol, IN (US);
CMI International, Southfield, MI (US);
Abstract
A method for metallurgically bonding cylinder liners (12, 12') within a cylinder block 14 of an internal combustion engine. The liners (12, 12') are cleaned (16) and their outer surfaces coated (18) with a low melting point cooling material (20) such as molten zinc forming a metallurgical bond therebetween. The coating (20) is allowed to solidify forming an outer oxidized layer (24) on the coating (20). The oxidized layer (24) is subsequently removed to expose an unoxidized outer surface (26) of the coating (20). The coated liners (12, 12') are then disposed within a casting mold and molten aluminum-based cylinder block material (36) is poured into the mold and about the coated liners (12, 12'). The molten cylinder block material (36) remelts the coating (20) on the liners (12, 12') and causes the coating to further alloy with the cylinder block material (36), whereupon cooling the cylinder liners (12, 12') are metallurgically bonded to the cylinder block (14).