Patent · US Active

Pump element and pump having such a pump element

US8241019B2 · kind B2 · utility

1Cited by

5References

15Claims

0Family size

Assignee

Hahn-Schickard-Gesellschaft für Angewandte Forschung e. V. · DE

Inventors

Heinz Kueck · Duisburg, DE
Daniel Benz · Winnenden, DE
Frank Wolter · Munich, DE

Key dates

Filing date	Mar 27, 2007
Grant date	Aug 14, 2012
Priority date	—
Expiry date	Apr 10, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B53/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pump element includes a pump element housing defining a pump chamber having an inlet and an outlet, and at least a first movable element movable in the pump chamber between a first and a second position. During a movement of the first movable element in the direction from the first to the second position, a flow resistance of a flow path from the first movable element through the inlet is larger than a flow resistance of a flow path between the pump element housing and the first movable element. During a movement of the first movable element in the direction from the second position to the first position, a flow resistance of a flow path from the first movable element through the outlet is smaller than a flow resistance of the flow path between the pump element housing and the first movable element. Thus, during a reciprocating movement of the first movable element between the first and the second position, a net flow through the outlet takes place.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.