Patent · US Active

Electric motor having a coaxially associated pump

US8079833B2 · kind B2 · utility

0Cited by

24References

20Claims

0Family size

Assignee

KSB Aktiengesellschaft · DE

Inventors

Bernhard Brecht · Hamburg, DE
Ralf Graber · Frankfurt, DE
Uwe Bruhns · Osthofen, DE
Harald Hartmann · Dornbirn, AT

Key dates

Filing date	Jul 26, 2006
Grant date	Dec 20, 2011
Priority date	—
Expiry date	Aug 8, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/043
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electric motor (1) having a coaxially associated pump (6) for a coolant circuit, in particular in a system with temperature transfer and/or heat transfer, in which a shaft assembly (5) transmits a torque from the electric motor (1) to at least one impeller (8) arranged in the pump housing (7) within housing parts (7, 10) in the form of a hermetically sealed pressure enclosure, and a flywheel (12) is arranged between the electric motor (1) and the pump housing (7). All of the rotating parts are arranged within a hermetically sealed motor/pump unit, and the motor/pump unit is filled with fluid. The flywheel (12) comprises a flywheel body (13) made from a high-strength material having a large number of cavities (16, 17) with inserts (16, 17) formed of or containing a heavy metal having a density greater than 11.0 kg/dm3arranged in the cavities.

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