Fuel-operated vehicle heating device and method to operating a fuel-operated vehicle heating device

US11148504B2 · kind B2 · utility

Assignee

• WEBASTO SE · DE

Inventors

• Andreas Rutsche · Stockdorf, DE
• Vitali Dell · Munich, DE
• Matthias Pfau · Meiningen, DE

Key dates

• Filing date: Nov 22, 2017
• Grant date: Oct 19, 2021
• Expiry date: Jun 15, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23N2241/14
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A method to operate a fuel-operated vehicle heater comprising the lowering of a combustion air ratio λ between supplied combustion air and supplied fuel to a combustion chamber of the fuel-operated vehicle heater from a starting value λstart>1 to a range λ<λstart for a time period Δt.