Variable displacement pump

Details Variable displacement pump Variable displacement pump

1977-11-15

1979-11-27

Freeh, William L.

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Axial adjustment of spaced, rigidly interconnected working...

92 137, F01B 3114, F15B 1524

Patent

active

041754743

ABSTRACT:
Variable displacement cam driven piston pump having means for the stepless adjustment of the length of the pump stroke. The stroke adjusting means has pivotally mounted spaced parallel levers, the levers being interposed between the cam and the piston of the pump, the levers being mutually coupled in their movement by a means adjustably arranged along the length of said levers, said levers being disposed on the opposite sides of a plane defined by the contact points between the lever coupling means and the levers.

REFERENCES:
patent: 1649356 (1927-11-01), Louis
patent: 1824467 (1931-09-01), Darby et al.
patent: 2147989 (1939-02-01), Puurmann
patent: 2792156 (1957-05-01), Camp
patent: 2898867 (1959-08-01), Saalfrank
patent: 3901231 (1975-08-01), Olson

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