发明名称 |
SECTIONAL PUMP WITH ARTICULATED JOINT |
摘要 |
FIELD: construction and manufacture of submersible centrifugal pumps for oil recovery from crooked and inclined wells. SUBSTANCE: lower end of pump upper section is provided with spherical member and upper end of lower section is provided with spherical seat for locking with spherical nut. Spherical member is provided with two circular grooves fitted with rubber seals and seats for keys used for limiting the angle of turn of sections relative to longitudinal axis of pump. Articulation of output end of shaft of upper section with output end of shaft of lower section is effected by means of articulated coupled which is secured immovably on output end of shaft of upper section and movably on output end of shaft of lower section. EFFECT: enhanced tightness of articulated joint; limited angle of turn of sections relative to longitudinal axis of pump. 2 dwgi
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申请公布号 |
RU2122142(C1) |
申请公布日期 |
1998.11.20 |
申请号 |
RU19960116729 |
申请日期 |
1996.08.16 |
申请人 |
NAUCHNO-PROIZVODSTVENNOE UPRAVLENIE AKTSIONERNOGO;OBSHCHESTVA OTKRYTOGO TIPA ORE |
发明人 |
KOSHTOREV N.I.;ZAJAKIN V.I.;KOSHTOREV S.N. |
分类号 |
F04D13/10;F04D29/044;F04D29/62;(IPC1-7):F04D13/10 |
主分类号 |
F04D13/10 |
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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