| 主权项 |
1. A combustion air blower for a vehicle heater, the blower comprising:
a blower housing with a housing bottom and with a circumferential wall adjoining the housing bottom and defining a housing interior space; a partition dividing the housing interior space into a motor mounting space and a sound insulation space; a blower motor carried on an inner side of the housing bottom, the blower motor being arranged in the motor mounting space, the blower motor having a motor shaft passing through a shaft opening in the housing bottom and carrying a combustion air feed wheel located opposite an outer side of the housing bottom, wherein a ring-shaped combustion air feed channel is covered by the combustion air feed wheel and is arranged in the housing bottom on the outer side of the housing bottom, the sound insulation space being open towards the air feed channel via an air passage opening provided in the housing bottom; and an air flow tube extending from a closing element closing the sound insulation space at an end area of the sound insulation space, facing away from the housing bottom, into the sound insulation space, the sound insulation space being defined by the circumferential wall, the partition, the closing element and the inner side of the housing bottom, wherein an end area of the air flow tube, facing the inside of the housing bottom, is at a spaced location from the inside of the housing bottom. |
