Electric heating device for heating fluids
AssigneeBorgWarner BERU Systems GmbH
InventorsRalph Waechter, Michael Stoerzinger, Bernd Halbrock, Alexander Dauth, Klaus Lehmann
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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.
Claims13
An electric heating device for heating fluids, comprising:
- at least one heating rod, which has at least one heating element;
- a housing, enclosing the heating rod and having an inlet opening and an outlet opening;
- a winding flow channel interconnecting the inlet opening and the outlet opening by a winding flow channel,
- wherein the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed off-center and next to the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of off-center points.
An electric heating device for heating fluids, comprising:
- at least one heating rod, which has at least one heating element;
- a housing, enclosing the at least one heating rod and having an inlet opening and an outlet opening;
- a winding flow channel interconnecting the inlet opening and the outlet opening by a winding flow channel;
- wherein the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed a distance from the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points;
- and
- wherein the flow channel is formed by flow guidance elements that are disposed one on top of the other in the housing and each form a portion of a screw and comprise recesses for the at least one heating rod.
An electric heating device for heating fluids, comprising:
- at least one heating rod, which has at least one heating element;
- a housing, enclosing the at least one heating rod and having an inlet opening and an outlet opening;
- a winding flow channel interconnecting the inlet opening and the outlet opening by a winding flow channel, wherein the winding flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed spaced from the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points;
- and
- a connecting plate protruding from the at least one heating rod and inserted into a slot of a circuit support plate.
Dependencies are inferred from the claim text.