| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive, small-sized, thin, and lightweight pump capable of suppressing the dissipation of internal fluid through a synthetic resin thin-walled portion. SOLUTION: In this pump, a wall portion having a thickness of less than a specified thickness causing the permeation of the internal fluid exceeding an allowable limit is formed in a portion formed of synthetic resin. Plating suppressing the permeation of the internal fluid is formed at least on the wall portions of a motor frame 2 and the casing 1. COPYRIGHT: (C)2004,JPO
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