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US 5,666,725 AGranted
Engine remanufacture by adhesively retained cylinder liners
AssigneePatent Master, Inc.
InventorMichael S. Ward
Life of this patent
Estimating the term…
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AssigneePatent Master, Inc.
InventorMichael S. Ward
Estimating the term…
A restoration sleeve for the remanufacture of cast iron engine blocks or aluminum blocks with cast iron liners includes a sleeve formed of cast iron and having a relatively thin wall, a selected length, an outer diameter to achieve a non-interference fit within an overbored cylinder, an inner diameter equal to the original specifications of the original manufacturer of the engine block, and a helical cross hatched inner surface finish. The sleeves are manufactured by placing an unfinished sleeve in a boring fixture, boring the inner surface to a selected diameter, transferring the bored sleeve to a honing fixture, and honing the inner surface to the required diameter and surface finish. An adhesive is applied to the restoration sleeve and the overbored block cylinders, and the sleeves are inserted into the overbored cylinders wherein the adhesive is allowed to cure to thereby adhesively retain the sleeves within the block. A fluorescent dye is used in the adhesive for inspection by ultraviolet light to insure continuous and complete application of the adhesive to the restoration sleeve and the bored cylinder surface.
A method for remanufacturing a reciprocating engine having a cylinder bore formed in an engine block of said engine and comprising the steps of:
A method for remanufacturing a reciprocating engine having a tubular cylinder liner positioned in a cylinder of an engine block of said engine, said liner having a cylindrical liner inner surface, and said method comprising the steps of:
Dependencies are inferred from the claim text.