Patent Number: 6,168,376

Title: Rotary pump with ventilated chamber

Abstract: Centrifugal pump with a pump chamber (18) housing a radial impeller (20) and aspiration port arranged coaxially with the radial impeller, and at least one ventilating conduit (26) that leads from the inner radial area of the pump chamber to the outside, wherein the outer circumferential edge of the pump chamber (18) is fitted with interference contours (32) that are essentially directed tangentially to swirl the liquid flow.

Inventors: Wagner; Peter (Werdohl, DE)

Assignee: Brinkmann Pumpen, K.H. Brinkmann GmbH & Co. KG

International Classification: F04D 9/00 (20060101); F04D 017/18 ()

Expiration Date: 01/02/2018