Method for the manufacture of a two piece piston and piston

Details Method for the manufacture of a two piece piston and piston Method for the manufacture of a two piece piston and piston

1991-10-18

1992-09-08

Cross, E. Rollins

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

92186, 92255, 2988804, 29888042, 29888044, F02F 300

Patent

active

051449234

ABSTRACT:
Piston tops (1, 70), specially those provided with combustion chamber (2, 20) and ring zone (3, 30) have their cooling condition sensibly improved in such regions due to a better use of the cooling oil capacity by closing the cooling chamber (5, 50) and the region 2I under the combustion chamber by annular ring members (96, 13) in a resilient material, e.g., a polymeric material or, preferably a spring steel, which clamp under the cooling chamber (5, 50) and the region 2I with dimensional interference respectively with grooves (10, 100), notches (11, 110) and groove 15. Methods for the manufacture of such top portion having a reduced compression height are also described.

REFERENCES:
patent: 3915141 (1975-10-01), Ottl et al.
patent: 4114519 (1978-09-01), Speaight
patent: 4550707 (1985-11-01), Kervagoret
patent: 4577595 (1986-03-01), Deutschmann et al.
patent: 4603617 (1986-08-01), Barth et al.
patent: 4843698 (1989-07-01), Ripberger et al.
patent: 4986167 (1991-01-01), Stratton et al.

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