Electric heating device for heating fluids

US9435562B2 · kind B2 · utility

Assignee

• BorgWarner Ludwigsburg GmbH · DE

Inventors

• Thomas Giffels · Stuttgart, DE
• Helmut Mueller · Tauberbischofsheim, DE
• Ralph Waechter · Kaiseraugst, CH
• Michael Stoerzinger · Bretten, DE
• Bernd Halbrock · Remchingen, DE
• Alexander Dauth · Maulbronn, DE
• Klaus Lehmann · Rochlitz, DE

Key dates

• Filing date: Aug 8, 2013
• Grant date: Sep 6, 2016
• Expiry date: Apr 13, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2203/021
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a electric heating device for heating fluids, comprising at least one heating resistor, a screw, which defines a helical flow channel, and a tube housing, which surrounds the screw. In accordance with this disclosure, the screw has a core in which the at least one heating resistor is arranged.