Internal combustion engine

Details Internal combustion engine Internal combustion engine

2007-06-08

2008-10-14

Kamen, Noah (Department: 3747)

Internal-combustion engines

Multiple piston, common nonrestrictive combustion chamber

Four-cycle

C123S0510BC, C123S055200, C123S055700

Reexamination Certificate

active

07434550

ABSTRACT:
An improved configuration for an opposing piston-opposing cylinder (“OPOC”) internal combustion engine with a single camshaft to reduce friction between the pistons and the cylinder walls during the combustion phase of the engine cycle. The improvements are presented in two embodiments that provide offsets between the bore axes of the cylinders and the crankshaft axis of rotation to cause the connecting rods to achieve an orientation substantially parallel to the cylinder bore at TDC and shortly thereafter.

REFERENCES:
patent: 6170443 (2001-01-01), Hofbauer

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