The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Sep. 27, 2012
Ralph Waechter, Pfinztal, DE;
Michael Stoerzinger, Bretten, DE;
Bernd Halbrock, Koenigsbach-Stein, DE;
Alexander Dauth, Maulbronn, DE;
Klaus Lehmann, Oberderdingen, DE;
Ralph Waechter, Pfinztal, DE;
Michael Stoerzinger, Bretten, DE;
Bernd Halbrock, Koenigsbach-Stein, DE;
Alexander Dauth, Maulbronn, DE;
Klaus Lehmann, Oberderdingen, DE;
BorgWarner BERU Systems GmbH, Ludwigsburg, DE;
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.