Patent · US Expired

Geared pump for conveying fluids

US6053718A · kind A · utility

16Cited by

10References

20Claims

0Family size

Assignees

Gerate- und Pumpenbau GmbH · DE
SGL Carbon AG · DE

Inventors

Eugen Schmidt · Weiterstadt, DE
Herbert Schmidt · Friedberg, DE
Walter Thiele · Bonn, DE

Key dates

Filing date	Mar 17, 1998
Grant date	Apr 25, 2000
Priority date	—
Expiry date	Mar 17, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2203/0882
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An internally or externally geared pump for conveying fluids lacking or only having insufficient lubricating ability, includes gearwheels moving in an operating chamber of the pump, conveying fluids and being mounted completely in parts formed of a carbon material. Supports are formed from accurately worked lateral walls and a jacket of the operating chamber formed of the carbon material. The jacket surrounds the gearwheels in the radial direction and is likewise constructed as a support. Chambers on the suction side and on the pressure side for fluid supply and fluid removal, which are necessary for the operation of the pump, are molded into side walls of the operating chamber which is formed of carbon.

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