Power assembly for internal combustion engine with welded-in piston scraper
AssigneeGeneral Electic Company
InventorsNeil Blythe, John P. Dowell, Barry Record, Michael Schleigh, Richard C. Orlando, Ranga Srinivas Gunti
Life of this patent
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Abstract
A power assembly for an internal combustion engine includes a piston housed within a cylinder, with the cylinder having a welded cylinder head, with the cylinder also including a one-piece piston scraper which is welded to the cylinder head, as well as to the cylinder, with a common weld bead.
Claims18
A power assembly for an internal combustion engine, comprising:
- a cylinder having an inner circular wall defining a first inside diameter;
- a piston reciprocally housed within the cylinder;
- a cylinder head attached to an end of the cylinder;
- and
- a one-piece piston scraper welded to both of said cylinder head and said cylinder, with said piston scraper defining a second inside diameter which is less than said first inside diameter.
A method for providing a piston deposit scraper at an upper portion of an internal combustion engine power assembly, comprising:
- counterboring an upper portion of a cylinder;
- counterboring a lower portion of a cylinder head, whereby the counterbore formed in the cylinder head and the counterbore formed in the cylinder are contiguous;
- placing a cylindrical scraper sleeve in the counterbored portions of said cylinder and said cylinder head;
- placing said cylinder head in contact with said cylinder;
- and
- welding said scraper sleeve to said cylinder and to said cylinder head.
A power assembly for an internal combustion engine, comprising:
- a cylinder having an inner circular wall defining a first inside diameter;
- a piston reciprocally housed within the cylinder, with said piston having a top land;
- a cylinder head attached to an end of the cylinder;
- a one-piece, cylindrical scraper sleeve mounted within a counterbore defined by separate counterbores formed in the cylinder and cylinder head;
- and
- a common weld bead circumscribing the periphery of the cylinder, with said weld bead joining said scraper sleeve to both said cylinder head and said cylinder.
Dependencies are inferred from the claim text.