Patent ID: 6142728
Filing Date: 2000-11-07
Classification: F04D

Abstract:
A side-channel blower, for feeding combustion air in a parking heater of a motor vehicle, comprising:an impeller;a fan body part with a side with a axial connection to said impeller, said fan body part having an inlet channel and an outlet channel and, on said side with said axial connection to said impeller, a bent side channel connecting said inlet channel to said outlet channel;a separating web which is a separate component from said fan body part, said separating web together with said side channel forming a 360.degree. circumference of said side with said axial connection to an impeller, said separating web having a flat surface which is located in a close, contact-free proximity of said impeller, said flat surface having a flow- and noise-optimized first contour and a flow- and noise-optimized second contour, wherein said first contour is associated with an inlet opening of said inlet channel and said second contour is associated with an outlet opening of said outlet channel, and said first contour forms a profiled part of said inlet opening and said second contour forms a profiled part of said outlet opening;said fan body part having an impeller bearing wherein said flat surface has a third, concave round contour, which is located between said first and second contours and adjoins said impeller bearing.