Piston for internal combustion engine and internal...

Details Piston for internal combustion engine and internal... Piston for internal combustion engine and internal...

2011-08-16

2011-08-16

Cuff, Michael (Department: 3783)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

C123S193100, C123S0460SC, C123S0460SC, C123S041350

Reexamination Certificate

active

07997249

ABSTRACT:
A piston for an internal combustion engine including: a piston head located at an uppermost section of the piston; a land located on a circumference of the piston head; a skirt located below the land; and a pair of pin bosses located on the lower section of the piston head. The piston head has a first cavity on the bottom of the piston head. Each of the pair of pin bosses has a second cavity in an outer upper section of the pin boss. The pin boss has a through hole that communicably connects the first cavity with the second cavity.

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