Patent · US Active

Electric heating device for heating fluids

US8731386B2 · kind B2 · utility

17Cited by

25References

13Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Ralph Waechter · Kaiseraugst, CH
Michael Stoerzinger · Bretten, DE
Bernd Halbrock · Remchingen, DE
Alexander Dauth · Maulbronn, DE
Klaus Lehmann · Rochlitz, DE

Key dates

Filing date	Sep 27, 2012
Grant date	May 20, 2014
Priority date	—
Expiry date	Sep 27, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/021
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

The invention relates to an electric heating device for heating fluids, comprising at least one heating rod, which has at least one heating element, a housing, which encloses the heating rod and has an inlet opening and an outlet opening, wherein the inlet opening and the outlet opening are interconnected by a winding flow channel. According to the invention, the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed next to the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points.

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