Variable stroke positive displacement pump

Details Variable stroke positive displacement pump Variable stroke positive displacement pump

1988-09-08

1989-05-16

Croyle, Carlton R.

Pumps

Expansible chamber type

Plural pumping chambers

417221, 417216, 92 137, F04B 1300

Patent

active

048305898

ABSTRACT:
A variable stroke positive displacement piston pump in which the effective eccentricity of the crankshaft controlling the stroke is adjustable by means of a worm/worm gear combination driving a hub to which eccentric rings are keyed.

REFERENCES:
patent: 2592237 (1950-01-01), Bradley
patent: 4141676 (1979-02-01), Jannen et al.
patent: 4245966 (1981-01-01), Riffe
patent: 4302163 (1981-11-01), Hope et al.

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