Title:
BLADE OF A HYDRAULIC PROPULSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/1997/037889
Kind Code:
A1
Abstract:
A novel profile is proposed for a hydraulic propulsion system blade intended for use in conditions of no cavitation and no ventilation and having a significantly higher efficiency, lifting force or cavitation-free flow indicators. The blade has a convex suction surface and a convex-concave compression surface, and leading and trailing edges. The suction surface has a section of increased curvature in the region of the trailing edge, whilst the inflection point of the line forming the compression surface is at a distance from the trailing edge of 0.6-0.9 times the length of the cord.
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Inventors:
TITOV ALEXANDR I
SLEPOV ALEXANDR V
FIRSUKOV JURY J
SLEPOV ALEXANDR V
FIRSUKOV JURY J
Application Number:
PCT/RU1997/000084
Publication Date:
October 16, 1997
Filing Date:
March 25, 1997
Export Citation:
Assignee:
OAO BALTIISKY Z BALTIISKAYA MA (RU)
International Classes:
B63H1/26; (IPC1-7): B63H1/26
Foreign References:
| US4073601A | 1978-02-14 | |||
| US4780058A | 1988-10-25 | |||
| SU249960A | ||||
| US4552511A | 1985-11-12 | |||
| SU656493A3 | 1979-04-05 | |||
| FR2600971A1 | 1988-01-08 | |||
| US4780058A | 1988-10-25 |
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