| 摘要 |
PROBLEM TO BE SOLVED: To enhance accuracy in molding for a molded piece made of resin, and to reduce noise and vibration generated by the piece in a gear pump employing the molded piece made of resin. SOLUTION: This pump is equipped with a driving side gear 1, a driven side gear 4 driven by the driving side gear, and with a pump body 6 and a pump base 7, having the driving side gear 1 and the driven side gear 4 within a prescribed clearance. In this case, the driving side gear 1 and the driven side gear 4 are formed out of liquid crystal polymer by means of injection molding. This constitution thereby enables resin molding high in accuracy and noise low in sound level.
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