Heating system and process for influencing air flows in a heating system

US6955303B2 · kind B2 · utility

Assignee

• Webasto Thermosysteme International GmbH · DE

Inventors

• Nils Elm · Planegg, DE
• Andreas Ludwig · Penzberg, DE
• Andreas May · Marlboro, US
• Nikolaus Gerhardt · Oberschleißheim, DE
• Friedrich Widemann · Munich, DE

Key dates

• Filing date: Dec 5, 2003
• Grant date: Oct 18, 2005
• Expiry date: Jan 11, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60H2001/2287
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.