专利名称：INTERNAL PUMP 发明人：OKADA AKIHISA 申请号：JP8812081
申请日：19810610
公开号：JPS57203898A
公开日：
19821214
专利内容由知识产权出版社提供
摘要：PURPOSE:To prevent corrosion in a hollow space between a stretchcad测量长度
tube and a motor ca nozzle, by making purge water supplied from the outside of a motor ca flow also through the hollow space between the stretch tube and the motor ca nozzle. CONSTITUTION:Purge water introduced into a motor ca nozzle 4a from a ction A is carried through a hole 13a and 初一课文
flows through hollow 紧急避孕药说明书
spaces B and C between a shaft 12梦见菠萝
and a stretch tube 13, and at the same time, the purge water is also introduced into a hollow space F between the stretch tube 13 and the motor ca nozzle 4a. Purge water thus introduced into the hollow space F joins with purge wat金融风险有哪些
er carried through a hole 13b via a groove formed near the top of the stretch tube 13, and then the purge water thus joi桌子的英文
ned is carried to a ction D. By thus feeding clean water always to the ction F, it is enabled to pr技术评价
event corrosion in the hollow space between the stretch tube 13 and the motor ca nozzle 4a.
申请人：HITACHI SEISAKUSHO KK
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