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1. (WO2018099776) FUEL-OPERATED VEHICLE HEATING DEVICE AND METHOD FOR OPERATING A FUEL-OPERATED VEHICLE HEATING DEVICE

Pub. No.:    WO/2018/099776    International Application No.:    PCT/EP2017/080006
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 23 00:59:59 CET 2017
IPC: F23N 5/20
F23N 1/02
F23N 3/00
F23N 1/00
Applicants: WEBASTO SE
Inventors: RUTSCHE, Andreas
DELL, Vitali
PFAU, Matthias
Title: FUEL-OPERATED VEHICLE HEATING DEVICE AND METHOD FOR OPERATING A FUEL-OPERATED VEHICLE HEATING DEVICE
Abstract:
The invention relates to a method (100) for operating a fuel-operated vehicle heating device, comprising the lowering (130) of a combustion air ratio λ between supplied combustion air and supplied fuel in a combustion chamber of the fuel-operated vehicle heating device for a time interval At from an initial value λstart > 1 into a range of λ < λstart. The invention further relates to a fuel-operated vehicle heating device having a control unit, which is designed to carry out the method (100).