Fan housing esp. for sec. fan in IC engines with regulated three-way catalyser - has first housing part for reception of electric motor with second coaxially fitted housing part for reception of at least one fan impeller driven by motor
摘要
<p>A housing cover (14) is fitted on the endface of the second housing part (13), which is fixed by connecting means e.g. screws (27) to the first housing part (12) and clamps the second housing part (13) securely to the first housing part (12). The housing cover (14) is designed can or cap shaped. So that it completely overlaps the second housing part (13) mainly with a radial clearance. The cover is supported with its cap edge at the first housing part (12). ADVANTAGE - Gives considerable noise redn. No external leakages. Overall efficiency of fan is increased and offers certain protection against environmental influences.</p>
