Radial-piston pump

Details Radial-piston pump Radial-piston pump

1993-02-11

1995-01-17

Bertsch, Richard A.

Pumps

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

Radial cylinders

91491, F04B 104

Patent

active

053821408

ABSTRACT:
A pump comprising a number of radial cylinders arranged a given angular distance apart about a drive shaft and each housing including a piston resting radially on a respective pad by virtue of the action of a return spring. The connection between the piston and pad comprises a retainer for preventing in-service detachment of the pad, which rests on a respective flat portion of a cam mounted for rotation on an eccentric portion of the shaft. The force on the pad produced by sliding friction between the pad and the flat portion of the cam and directed perpendicular to the axis of the cylinder is absorbed by the piston.

REFERENCES:
patent: 4519299 (1985-05-01), Moloney
patent: 4913628 (1990-04-01), Samland et al.
patent: 5167493 (1992-12-01), Kobari
patent: 5180292 (1993-01-01), Abousabha et al.
patent: 5213482 (1993-05-01), Reinartz et al.

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