发明名称 |
Method of making an internally profiled stator tube |
摘要 |
A method of manufacturing a thick walled Moineau-style stator entails drawing a thick walled tube through rotatable internal and external dies to form a helical outer profile including crests and through on the tube. The tube initially has one end with a diameter smaller than the others, with the smaller diameter end being inserted between the inner and outer dies, where it is seized and drawn through the dies.
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申请公布号 |
US6568076(B2) |
申请公布日期 |
2003.05.27 |
申请号 |
US20010874709 |
申请日期 |
2001.06.05 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
BOTTOS RICHARD D.;UNDERWOOD LANCE D. |
分类号 |
F04C2/107;(IPC1-7):B23P15/00 |
主分类号 |
F04C2/107 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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