Radial piston pump

Details Radial piston pump Radial piston pump

1988-01-20

1989-07-25

Freeh, William L.

Pumps

Expansible chamber type

Plural pumping chambers

417273, 417271, F04B 2100, F04B 3900, F04B 104

Patent

active

048508250

ABSTRACT:
A radial piston pump with at least one pair of pistons which alternately perform working strokes and are arranged in a stationary cylinder block with working chambers comprising inlet valves and outlet valves. An eccentric shaft controls the radial movement of the pistons and an annular device connects the radially outward end portions of the pistons. To avoid friction between eccentric and pistons, provisions are made that the eccentric shaft is supported outside of the cylinder block. The radially outward end portions of the pistons project radially outwardly from the cylinders and, by way of the annular device, take support on the eccentric of the eccendtric shaft. The eccentric is rotatably supported in the annular device.

REFERENCES:
patent: 1463109 (1923-07-01), Witman
patent: 1526343 (1925-02-01), Jouanneaux
patent: 1896448 (1933-02-01), Kercher
patent: 2271570 (1942-02-01), Pardee
patent: 3431865 (1969-03-01), Cook et al.
patent: 3514224 (1970-05-01), Budecker

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