Patent · US Expired

Water turbine or water pump

US6254338A · kind A · utility

1Cited by
4References
10Claims
0Family size

Inventor

Key dates

Filing dateNov 13, 1997
Grant dateJul 3, 2001
Priority date
Expiry dateNov 13, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/20
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A water turbine or pump having a rotor (1) and a stator (2). The leading edges (13) and the trailing edges (14) at least of the rotor blades (6) form a bend (15) projecting in opposite relationship to the flow direction (12). That causes a flow force resulting in a self-cleaning effect being applied to impurities which are deposited at the leading edges (13). However the adjustment design providing for adjustability of the rotor blades remains substantially unchanged.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.