| 摘要 |
PROBLEM TO BE SOLVED: To prevent leakage of dust from a casing of an aspirator/blower without using a seal member. SOLUTION: Seams in a divided casing body 6 enclosing an impeller 5 are enclosed by an outer casing body 23. A negative pressure by a rotation of the impeller 5 introduces outside air into an air passage 24 of the outer casing body 23. COPYRIGHT: (C)2003,JPO
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