Evaporator burner arrangement for a mobile heater operated with liquid fuel

An evaporator burner arrangement for a mobile heater operated with liquid fuel, said burner arrangement comprising:

• a mixture preparation region generating a fuel-air-mixture;
• a fuel evaporation surface arranged in the mixture preparation region for evaporating the liquid fuel;
• a combustion air supply supplying combustion air to the mixture preparation region;
• a fuel supply supplying liquid fuel to the fuel evaporation surface;
• a conversion region arranged fluidically downstream of the mixture preparation region for converting the fuel-air-mixture in order to release heat;
• and
• a heat conductor body spaced from a sidewall of the mixture preparation region and extending through the mixture preparation region to the conversion region for feeding-back heat from the conversion region to the mixture preparation region by thermal conductance,
• wherein the mixture preparation region includes a tapering portion tapering in a direction towards the conversion region and
• wherein a widening of the cross-section is formed at a transition from the mixture preparation region to the conversion region.