Gasket for water-cooled engine for outboard motor

Details Gasket for water-cooled engine for outboard motor Gasket for water-cooled engine for outboard motor

2006-05-16

2006-05-16

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Frame construction

Horizontal cylinder

C277S591000

Reexamination Certificate

active

07044098

ABSTRACT:
Gaskets are placed in joints between adjacent nonferrous metal engine members of a water-cooled engine for an outboard motor, such as a cylinder block, a cylinder head, a crankcase, a mount case and an oil pan, to seal the joints. Each of the gaskets has a base member formed of a stainless steel. The surfaces of the base member are coated with electrochemical corrosion preventing films formed by applying a liquid containing flakes of an aluminum alloy or a zinc alloy and a silicate resin in films and baking the films of the liquid. The electrochemical corrosion preventing films are coated with sealing films formed by applying a liquid containing aluminum flakes and a silicate resin to the electrochemical corrosion preventing films and baking the films of the liquid. The gaskets are prevented from electrochemically corroding despite potential difference between each gasket and the adjacent engine members.

REFERENCES:
patent: 5374069 (1994-12-01), Pecina
patent: 01203763 (1989-08-01), None
patent: 02196647 (1990-08-01), None
patent: 06-011042 (1994-01-01), None

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