Patent · US Active

Rotary pump with spiral casing

US9222476B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

OASE GmbH · DE

Inventors

Enno Hanisch · Barsinghausen, DE
Reinhard Henbrock · Bühl, DE

Key dates

Filing date	Jul 8, 2012
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Dec 31, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/426
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotary pump has a pump housing enclosing a flow space and provided with an intake opening and a discharge opening, wherein the intake opening and the discharge opening are connected to each other by the flow space. An impeller wheel is disposed in the flow space and is driven in rotation. An expansion body is provided that is fluidically connected to the flow space. A spiral casing surrounds, in a mounted position in the pump housing, an outer circumference of the impeller wheel, wherein the spiral casing is a single-part or multi-part shaped component and is embodied separate from the pump housing.

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