Crankshaft assembly for variable stroke engine for variable comp

Details Crankshaft assembly for variable stroke engine for variable comp Crankshaft assembly for variable stroke engine for variable comp

1988-06-20

1989-12-19

Okonsky, David A.

Internal-combustion engines

Four-cycle

Variable clearance

123197AC, F02B 7504

Patent

active

048875600

ABSTRACT:
A crankshaft carried crankpin carries an eccentric interposed between the crankpin and the slider of a yoke type engine. The eccentric carries a gear to permit rotatable adjustment to be imparted to the eccentric about the crankpin axis. Positioning of the eccentric includes the use of a gear train. A gear set in the gear train has displaceable gears carried by a carrier responsive to engine control means. The movable gear set serves to accelerate or decelerate the rotational speed of a pair of shaft mounted driven gears to momentarily alter their rotational speed so as to in turn rotate the eccentric mounted gear to reorientate the eccentric to the crankpin. Such relocating of the eccentric serves to alter the piston stroke between high and low compression ranges.

REFERENCES:
patent: 1111252 (1914-09-01), Eagle
patent: 1599319 (1926-09-01), Crowe
patent: 3861239 (1975-01-01), McWhorter
patent: 4485768 (1984-12-01), Heniges

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