COMBUSTION CHAMBER ASSEMBLY Russian patent published in 2019 - IPC B60H1/22 

FIELD: motor vehicle industry.

SUBSTANCE: invention relates to heaters for a vehicle. Combustion chamber assembly (10) for fuel-operated vehicle heater comprises combustion chamber housing (14) with restricted circular wall (30) combustion chamber (28) and flame tube (32), which follows in direction of longitudinal axis (L) of housing behind circular wall (16) and surrounds chamber (46) for exhaust gas flow open in direction of longitudinal axis (L) of housing, wherein between flame tube (32) and housing (12) surrounding it there is chamber (50) for exhaust gas return flow. In exhaust gas exhaust chamber (50) first axial end area (48), exhaust gas flow chamber (46) is open to exhaust gas return flow chamber (50), and in chamber (50) for exhaust gas exhaust backflow there is catalyst device (54) made with possibility of exhaust gas flowing through it, flowing in chamber (50) for back exhaust flow. Heater comprises heating device (60) for heating of catalyst device.

EFFECT: improved combustion chamber assembly.

12 cl, 8 dwg