Piston with separate head and skirt

Details Piston with separate head and skirt Piston with separate head and skirt

1993-03-09

1993-11-16

Kamen, Noah P.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

123 4135, 92186, 29888044, F02F 300

Patent

active

052613631

ABSTRACT:
The invention relates to a piston for an internal combustion engine. The piston has a longitudinally extending axis and ring grooves for receiving piston rings, and a separate piston head having a top and an annular cooling oil duct. A ring belt extends downwardly from the top of the piston head to define an outer border of the annular cooling oil duct and forms a first support facing in an axial direction. Bosses define an inner border of the annular cooling oil duct and form a second support facing in an opposite axial direction. The cooling oil duct has an opening and an annular plate supported on the first and second supports by spring tension. The annular plate closes the opening of the annular cooling oil duct to retain oil therein to cool the piston.

REFERENCES:
patent: 4843698 (1989-07-01), Ripberger et al.
patent: 4986167 (1991-01-01), Stratton et al.

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