Wobble driven axial piston pump

Details Wobble driven axial piston pump Wobble driven axial piston pump

1987-06-17

1988-12-20

Freeh, William L.

Pumps

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

417271, 417515, F04B 114, F04B 3504, F04B 3908

Patent

active

047922877

ABSTRACT:
An axial piston pump for pumping a medium such as a viscous liquid in which a wobble element is set into rotating movement via a piston, the wobble element moving at least one feed piston in a piston bore. The piston bore is intended to communicate, via a transverse line and a further piston bore which is occupied by a control piston, with an intake line for the medium to be pumped. By means of this axial piston pump, which is valve-controlled on the compression side and slide-controlled on the intake side, liquid having a high viscosity can be pumped without a loss of efficiency, and any noise produced by the pump can be reduced. These latter advantages are reinforced still further provided the feed system is received in a pump insert that is supported with respect to a pump housing by means of elastic bearing elements.

REFERENCES:
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patent: 4396357 (1983-08-01), Hartley
patent: 4445825 (1984-05-01), Budecker
patent: 4555223 (1985-11-01), Budecker

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