04865519 is referenced by 6 patents and cites 8 patents.

A multi-stage centrifugal pump mainly used for oil extraction, which incls two essential components, namely, a rotational impeller comprising several blades and a stationary diffuser. The shapes of blades and flow passages are designed by using three-dimensional flow theory. The configuration is characterized by the impeller length and the diffuser length being almost equal, with the moving blade being provided with an extension at the trailing edge, smaller wrap angle of the stationary diffuser blade, shorter single-stage and smaller outside diameter, and so forth.

Title
Oil submersible pump
Application Number
7/210790
Publication Number
4865519
Application Date
June 24, 1988
Publication Date
September 12, 1989
Inventor
Cui Yongqiang
Beijing
CN
He Benyuan
Beijing
CN
Liu Diankui
Beijing
CN
Agent
Antonelli Terry & Wands
Assignee
Institut of Engineering Thermophysics of Chinese Academy of Sciences
CN
IPC
F04D 29/44
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