Back to results
US 2004/0166009 A1Published application
Vane cell pump
OwnerUwe Nigrininventor
Life of this patent
Estimating the term…
Abstract
A vane cell pump which is used to pump fluids, comprises a rotor (2), a lift curve ring (3) and a plurality of wings(4) which are pre-tensed by means of spring elements (5). The spring elements (5) are an integral part of the rotor.
Claims14
A vane cell pump for delivering fluids, comprising a rotor, a cam ring and a plurality of vanes which are pre-tensioned by means of spring elements, the spring elements being an integral part of the rotor, wherein the rotor is made of plastic and the spring elements are captively molded into the rotor.
A vane cell pump for delivering fluids, comprising
- a plastic rotor having integrated spring elements captively molded into the rotor,
- a cam ring, and
- a plurality of vanes whereby the vanes are pre-tensioned by said spring elements.
Dependencies are inferred from the claim text.