Stroke-variable engine

Details Stroke-variable engine Stroke-variable engine

2007-12-11

2007-12-11

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Convertible cycle

C123S0480AA, C123S197400

Reexamination Certificate

active

11507662

ABSTRACT:
A stroke-variable engine includes a pivot shaft which is rotatably supported in a crankcase so as to be rotatable about an eccentric axis parallel to a crankshaft and which is connected to a control rod so that a rotational power reduced at a reduction ratio of 1/2 is transmitted from the crankshaft to the pivot shaft. A camshaft of a valve-operating mechanism mounted at an upper portion of an engine body and the pivot shaft are operatively connected to each other. Thus, it is possible to decrease the number of parts of the valve-operating mechanism, increase a rotational speed, and further reduce mechanical noise.

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patent: 2003-0082450 (2003-10-01), None

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