Low-friction piston

Details Low-friction piston Low-friction piston

1978-09-20

1979-12-18

Lazarus, Ira S.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92182, 277216, F16J 920, F02F 328

Patent

active

041788990

ABSTRACT:
A piston comprising hydrodynamic skirts and crowns, pressure-actuated sealing rings of fixed excursion or balanced by hydrodynamic reactions, or no rings at all, stringent temperature control, ample oil on the cylinder wall even near top-dead-center, characterized by absence of abrasion between piston and cylinder and much lower friction, resulting thereby in higher fuel-economy and longer engine-life.

REFERENCES:
patent: 1462501 (1923-07-01), Barwald
patent: 3704893 (1972-12-01), Hill
patent: 3834719 (1974-09-01), Shin et al.
patent: 4106463 (1978-08-01), Curtis et al.

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