Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Reexamination Certificate
2005-12-06
2005-12-06
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
C123S0780AA
Reexamination Certificate
active
06971342
ABSTRACT:
Apparatus is provided for adjusting a compression ratio of an engine having a crankshaft, a plurality of combustion cylinders, a moveable piston disposed within each combustion cylinder, and rods connecting each piston of the crankshaft. The apparatus generally includes a plurality of bearings surrounding a crankshaft at each main bearing with each bearing having an offset bore therethrough supporting the crankshaft. Rotational displacement of the bearings causes off axis displacement of the crankshaft along the longitudinal axes of the rods, thus raising and lowering the scope of movement of each piston and thereby increasing and decreasing the compression ratio without changing piston stroke. Rotational displacement of the bearings may be provided through an actuator interconnected to a throttle linkage.
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Derwent Acc No: 1996-127084; “Variable Compression ratio engine, with eccentric main bearing-has servo motor . . . ” Feb. 10, 1996.
Hackler Walter A.
Kamen Noah P.
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