Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent
1993-02-26
1994-11-29
Bertsch, Richard A.
Pumps
Condition responsive control of drive transmission or pump...
Adjustable cam or linkage
417273, 91492, 91497, 92 121, F04B 106
Patent
active
053684486
ABSTRACT:
A variable-stroke crank mechanism has a crankshaft rotatably supported in a casing for relative rotation about an axis with a crankpin displaced out of alignment with the axis. An eccentric collar is rotatably mounted on the crankpin for revolving around the axis in response to the relative rotation of the crankshaft with respect to the casing to reciprocally move an actuator relative to the casing. A stroke adjusting mechanism for adjusting angular displacement of the eccentric collar on the crankpin comprises an internal ring gear integral with the eccentric collar concentrically with the crankpin, a planetary pinion rotatably mounted on the crankshaft and meshing with the internal ring gear, a sun gear meshing with the planetary pinion, and a stroke adjusting shaft rotatably disposed axially in a portion of the crankshaft and coupled to the sun gear, whereby the stroke adjusting shaft is adjustable in angular displacement to adjust a stroke of reciprocating movement of the actuator.
REFERENCES:
patent: 2115121 (1938-04-01), Phillips
patent: 2316115 (1943-04-01), Thompson
patent: 2392754 (1946-01-01), Mercier
patent: 3892167 (1975-07-01), Becker
patent: 4006668 (1977-02-01), Steiger
patent: 4126994 (1978-11-01), Rockwell
patent: 5076057 (1991-12-01), Maruno
patent: 5279208 (1994-01-01), Kyrlin
patent: 5280745 (1994-01-01), Maruno
Ichijoh Shyuji
Maruno Fujiya
Ohta Shoji
Bertsch Richard A.
Honda Giken Kogyo Kabushiki Kaisha
Korytnyk Peter
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