专利名称：VENTILATION ASSEMBLY发明人：Piergiorgio INNOCENTI申请号：US14506012申请日：20141003
公开号：US20150098817A1公开日：20150409
专利附图：
摘要：A ventilation assembly, particularly for a vehicle, has a cowl with a conduit for airflow. The conduit has a first portion and a second portion having a smaller diameter and ajoining portion joining the first and second portions. A fan is disposed in the conduit. Thefan has an impeller with a peripheral ring having a lip. An annular passage is formed
between the ring and the conduit. The lip has a substantially frusto-conical shape; and thejoining portion of the conduit has a substantially frusto-conical shape, with an inclinationangle (α) at least approximately corresponding to that of the lip of the impeller. Theinclination angle (α) is between 115° and 145°.
申请人：Johnson Electric S.A.
地址：Murten CH
国籍：CH
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