Impeller for a ventilator

摘要

#CMT# #/CMT# The impeller (4) has fan blades (7) formed with similar profile sections in the cylinder section such that the interval between the profile sections increases from one end to another end. The outermost profile section lies in the cylindrical envelope surface of impeller. A flow element (17) is formed between the forward edge (10) and rear edge (11) and stretched over the whole length of the outer periphery. #CMT#USE : #/CMT# Impeller for fan. #CMT#ADVANTAGE : #/CMT# The impeller is simple in structure, and the noise level during operation of the fan is reduced. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of the impeller. 4 : Impeller 7 : Fan blade 10 : Forward edge 11 : Rear edge 17 : Flow element.