Variable stroke assembly

Details Variable stroke assembly Variable stroke assembly

2004-10-27

2008-08-12

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Having motor-operated adjustment

C092S013000, C092S013700

Reexamination Certificate

active

07409901

ABSTRACT:
A variable stroke assembly enables the piston stroke length of a positive displacement pump to be varied while maintaining a substantially constant unswept volume in the piston cylinder. Alternatively, a variable stroke assembly enables the piston stroke length of a pump or an engine to be varied while maintaining a substantially constant compression ratio. In an embodiment, the variable stroke assembly comprises an automated system that varies the stroke length of the pump or engine piston via an actuator that may be actuated remotely. The automated system may further comprise a linkage assembly that is positioned by the actuator. In an embodiment, the linkage assembly comprises a crankshaft throw, a connecting rod connected to the crankshaft throw, a variable stroke component connected to the connecting rod, and a slider that traverses the variable stroke component to vary the stroke length of the piston.

REFERENCES:
patent: 635258 (1899-10-01), Lange
patent: 2792156 (1957-05-01), Camp
patent: 2873611 (1959-02-01), Biermann
patent: 3738230 (1973-06-01), Censi
patent: 3834839 (1974-09-01), Krebs et al.
patent: 4028018 (1977-06-01), Audsley
patent: 4131094 (1978-12-01), Crise
patent: 4240386 (1980-12-01), Crist
patent: 4264281 (1981-04-01), Hammelmann
patent: 4346677 (1982-08-01), Nye
patent: 4682532 (1987-07-01), Erlandson
patent: 4830589 (1989-05-01), Pareja
patent: 5136987 (1992-08-01), Schechter et al.
patent: 5335632 (1994-08-01), Hefley
patent: 6397794 (2002-06-01), Sanderson et al.
patent: 6446587 (2002-09-01), Sanderson et al.
patent: 6742441 (2004-06-01), Surjaatmadja et al.
patent: 2004/0265155 (2004-12-01), Hunter
patent: 2006/0088423 (2006-04-01), Brunet et al.
US 6,019,073, 02/2000, Sanderson (withdrawn)

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