Pistons

Details Pistons Pistons

1987-09-15

1989-06-13

Garrett, Robert E.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92212, 92213, 123193P, F16J 104

Patent

active

048381497

ABSTRACT:
Pistons for internal combusion engines are described. The pistons comprise a crown component and a skirt component wherein the crown component consists of an iron or nickel based alloy annular portion having fitted directly therein a ceramic insert, the crown component being joined to the skirt component by an annular composite laminated member of steel and aluminium alloy the steel of the laminated member being energy beam welded to the annular portion of the crown component and the aluminum alloy of the laminated member being energy beam welded to the skirt component there being after welding a sealed, hollow, annular chamber disposed at the junction between the crown component and the skirt component. Embodiments are described having ceramic inserts of silicon nitride and including combustion bowls.

REFERENCES:
patent: 4530884 (1985-07-01), Erickson et al.
patent: 4531269 (1985-07-01), LaBouff
patent: 4531502 (1985-06-01), Mizuhara
patent: 4552057 (1985-11-01), Mizuhara
patent: 4553472 (1985-11-01), Munro et al.
patent: 4590901 (1986-05-01), Mizuhara
patent: 4592268 (1986-06-01), Hartsock
patent: 4604945 (1986-08-01), Mizuhara
patent: 4648308 (1987-03-01), Matsui et al.
patent: 4651630 (1987-03-01), Zeilinger et al.
patent: 4709621 (1987-12-01), Matsui et al.
patent: 4711208 (1987-12-01), Sander et al.

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