Piston structure for internal combustion engine

Details Piston structure for internal combustion engine Piston structure for internal combustion engine

1990-06-18

1991-10-22

Kwon, John T.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92232, F16J 104

Patent

active

050584898

ABSTRACT:
A piston structure for an internal combustion engine is provided. This piston includes an oval slipper skirt with a cross sectional profile in the form of an ellipse defined by preselected major and minor axes. A difference between the major and minor axes is gradually increased nearing a lower edge of the skirt. The skirt distorts from an elliptical shape to a round shape when side thrust acts on thrust surfaces of the skirt to provide uniform contact with a cylinder wall.

REFERENCES:
patent: 2120019 (1938-06-01), Cooper
patent: 2309555 (1943-01-01), Venner et al.
patent: 2513814 (1950-07-01), Moore
patent: 4648309 (1987-03-01), Schellmann
patent: 4756241 (1988-07-01), Sakuhara et al.
patent: 4831919 (1989-05-01), Bruni
patent: 4856417 (1989-08-01), Ishikawa

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