Super small centrifugal pump impeller
Title：
Super small centrifugal pump impeller
Application Number：
 200410009947
Application Date：
 2004/12/03
Announcement Date：
 2005/05/18
Pub. Date：
Publication Number：
 1616830
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 F04D 29/24, A61M 1/10
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Liu Shuhong, Luo Xianwu
Key Words：
 Super small, centrifugal pump, impeller
Abstract：
 The present invention relates to the structure design of superminiature centrifugal pump impeller of diameter 5-50mm. The design adopts new concept to raise the hydraulic performance of pump. Technologically, the impeller has the ratio between the exit area and the entrance area in 0.9-1.0, vane entrance attack angle of 10-30 deg, exit setting angle of 30-55 deg, vane number of 5-11, and vane entrance extending toward the pump entrance until the cross line between the hub and the vane is converted into axial point. Experiment shows the pump has inner flow characteristic and outer performance superior to traditional impeller. The present invention may be used as blood pump, circulating pump in small fuel cell cooling system, etc.
Claim：
Priority：
PCT：
LegalStatus：

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Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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