High pressure impeller with high efficiency for small volume flows for radial blowers of different size

摘要: The invention relates to an impeller for radial blowers or fans, comprising a cover, central bore fixing driving shaft and plurality of blades passing in part spiral manner from the outside bore. Radial with such impellers have inadequate power capacity certain applications. In addition, they cannot be operated independently mains are also overdimensioned. A high pressure small volume flows significantly increased efficiency incorporated into miniaturized, mains-independent blower would highly desirable. latter is obtained that cross-section k blade channel its last third up circumferential edge becomes smaller remains constant, it given profile-like configuration corresponding thickness, entry angle β 1 having value >40°.