Pump for liquids

Details Pump for liquids Pump for liquids

1979-02-01

1980-10-14

Jenkins, Robert W.

Pumps

Three or more cylinders arranged in parallel, radial, or...

91497, F04B 112, F04B 2708

Patent

active

042278643

ABSTRACT:
A pump for liquids having a rotor containing a plurality of bores each slidably receiving a piston. The pistons are coupled at one end to means constraining the pistons, when rotating with the rotor, to rotate about an axis spaced from but parallel to the axis of rotation of the rotor whereby the pistons reciprocate in their respective bores so that a pumping action occurs. The rotor is mounted on a hollow shaft for rotation about a first axis, and the outer surface of the shaft is formed with recesses which define inlet and outlet chambers communicating with bores of the rotor as the rotor rotates. A spindle is rotatable in the hollow shaft about a second axis, the second axis being parallel to but spaced from the first axis. The means constraining the pistons includes a member rotatably mounted on the spindle for rotation relative thereto about a third axis parallel to and spaced from the second axis, and the spacing between the first and third axes effecting reciprocation of the pistons as the rotor rotates, the spacing of the first and third axes determining the stroke of the pistons.

REFERENCES:
patent: 2678608 (1954-05-01), Woydt
patent: 3747477 (1973-07-01), Aldinger
patent: 4018138 (1977-04-01), Rumsey
patent: 4165677 (1979-08-01), Tobias

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