发明名称 MOTOR-DRIVEN BLOWER
摘要 PURPOSE:To reduce the level of noise, by forming an air guide by a disk part facing to the under surface of an impeller and a plurality of guide parts each of which has an inclined face, and making the height of guide part equal to or lower than the under surface of the impeller. CONSTITUTION:An air guide 19 is made up of a guide part 30 having a disk part 27 facing to the under surface of an impeller 21, a cylindrical part 29 forming the outer circumference thereof, a flat part 31, and inclined-face parts 28. The guide part 30 is placed in the position equal to or lower than the under surface of the impeller 21, so that the impingement of air current from the impeller 21 to the guide part 30 can be eliminated. Thus, the flowing efficiency can be enhanced with low noise.
申请公布号 JPS63109300(A) 申请公布日期 1988.05.13
申请号 JP19860254043 申请日期 1986.10.24
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 FUKUMOTO MASAMI;HIROSE TORU;YAMAURA IZUMI
分类号 F04D29/44 主分类号 F04D29/44
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