| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear pump capable of simplifying and miniaturizing a mechanism for transmitting rotary force to a gear and a structure for preventing liquid leak to the outside of a storage body. SOLUTION: A magnet 23 is attached on a drive gear 4 inside of the storage body 31 and a drive coil 24 applying magnetic action on the magnet 23 is arranged outside of the storage body 31. Consequently, rotary force is surely transmitted to the drive gear by electricity carry to the drive coil 24, and the mechanism transmitting rotary force to the drive gear 4 can be easily materialized by only the magnet 23 and the drive coil 24. Also, it is not necessary to make a drive shaft 16 pass through the storage body 13, and the structure preventing liquid leak to the outside of the storage body 31 can be simplified. COPYRIGHT: (C)2006,JPO&NCIPI
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