| 摘要 |
A centrifugal fan includes a fan wheel and a driveshaft for rotating the wheel in a housing. The housing has a suction inlet in a side of the housing at the axial centre of the wheel and a fan outlet formed by the housing. The centre line of this outlet is located generally on a radius extending from the axial centre of the fan wheel. The housing is formed of right and left housing halves of the same size and shape. A baffle is rigidly connected to the housing and is located in the housing adjacent the side of the fan outlet towards which the fan wheel rotates. The baffle extends into a chamber formed in the housing for the fan wheel and terminates at a point outside hut adjacent to the path of rotation of outer extremities of the fan wheel. The baffle is arranged at a substantial acute angle to the centre line of the outlet.
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