| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid pump reducing noise and vibration. SOLUTION: A first pressure generation projection section 9 is provided at a position between a suction port 7 and a delivery port 8 on an inner bottom surface of a pump chamber 6. The first pressure generation projection section 9 is for generating pressure at a time of rotation of an impeller 21 and both side sections are formed in smooth slant surfaces 11, 12. Flow at a time of impingement of fluid on the pressure generation projection part 9 gets smooth by that and impact is softened. Consequently, vibration caused by impingement of fluid on the pressure generation projection part 9 can be reduced and noise accompanying the vibration can be reduced. COPYRIGHT: (C)2006,JPO&NCIPI
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