| 摘要 |
<p>PCT No. PCT/DE90/00972 Sec. 371 Date Jul. 15, 1992 Sec. 102(e) Date Jul. 15, 1992 PCT Filed Dec. 19, 1990 PCT Pub. No. WO91/11297 PCT Pub. Date Aug. 8, 1991.A hand-guidable electric machine tool has a casing having an air guide duct, a tool part, a motor for driving the tool part, and a radial blower for cooling the motor, the radial blower having a fan wheel for forming a static pressure differential. The air guide duct has an inlet opening and an outlet opening and continuously widening in cross-section in a direction of the outlet opening. The cross-section measured in radial direction of the inlet opening of the air guide duct is smaller than the cross-section of the outlet opening.</p> |
