Crankshaft assembly for variable stroke engine for variable compression
This patent describes crankshaft assembly for a variable compression engine with reciprocating pistons. It comprises: a crankshaft assembly including a web, a crankpin, a crankshaft arm, piston driven means carried by the crankpin, eccentric means including an eccentric bushing rotatably carried by the crankpin and interposed between the crankpin and the piston driven means. The eccentric means including an eccentric mounted gear whereby adjusted rotation of the eccentric means relative the crankpin will alter the spacial relationship of the eccentric and the piston driven means to the crankshaft axis to alter piston stroke, and eccentric positioning means including a gear train comprising a first gear driven by the crankshaft arm for rotation about the crankshaft axis, a gear set driven by the first gear with certain gears of the set being displaceable, carrier means supporting the certain gears, control means coupled to the carrier means for positioning same and the certain gears, driven gears powered by the gear set which one of the driven gears in mesh with the eccentric mounted gear to impact rotate to same to alter the relationship of the eccentric bushing to the piston driven means to thereby determine stroke.
- Assignee:
- NOV; NOV-90-006138; EDB-90-077788
- Patent Number(s):
- US 4887560; A
- Application Number:
- PPN: US 7-208452A
- OSTI ID:
- 6912108
- Country of Publication:
- United States
- Language:
- English
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