Catalytic burner, especially for a vehicle heater

A catalytic burner for the catalytically supported combustion of a fuel/combustion air mixture, the catalytic burner comprising:

• a mixing chamber;
• a combustion air feed device feeding combustion air to the mixing chamber;
• a fuel feed device feeding fuel to the mixing chamber;
• a catalyzer device downstream of the mixing chamber, the catalyzer device comprising at least one catalyzer unit, through which the fuel/combustion air mixture flows,
• the fuel feed device comprising a porous evaporator device receiving liquid fuel from a fuel feed line and releasing fuel vapor into the mixing chamber;
• a burner housing with a bottom wall and with a circumferential wall defining a combustion chamber downstream of the mixing chamber and containing the at least one catalyzer unit;
• a projection provided at the bottom wall of the burner housing, the projection having a circumferential wall surrounded by the circumferential wall of the burner housing and extending from the bottom wall of the burner housing, the projection having a bottom wall arranged at a distal end of the projection in relation to the bottom wall of the burner housing, in the direction of a catalytic burner longitudinal axis, wherein the mixing chamber is provided in the interior of the projection, and at least one part of the porous evaporator device is carried at the bottom wall of the projection;
• at least one part of the porous evaporator device provided at at least the bottom wall of the projection on a side of the at least the bottom wall of the projection facing away from the combustion chamber,
• wherein one of the at least one catalyzer unit is arranged spaced apart from the circumferential wall of the projection.