Title:
ACCELERATION DUCT
Document Type and Number:
WIPO Patent Application WO/2018/105429
Kind Code:
A1
Abstract:
The present invention provides an acceleration duct to be disposed on the front of a rotor blade and having a shape in which the front portion of a bottom plate of a cylindrical section located in the rear is extended and formed into a gutter-like shape having a wide tip width to collect and accelerate a small amount of water. A front portion of a bottom plate (3) of a cylindrical section (2) located in the rear of a duct (1) is extended into a flat shape the width of which gradually increases toward the front, and sidewalls (4), (5) are disposed upright on the sides while the top is left open, thereby displacing and raising water coming in from the front before allowing the water to pass into the cylindrical section (2).
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Inventors:
SUZUKI MASAHIKO (JP)
Application Number:
PCT/JP2017/042464
Publication Date:
June 14, 2018
Filing Date:
November 27, 2017
Export Citation:
Assignee:
KK BELLSION (JP)
International Classes:
F03B13/10; F03B7/00; F03B17/06
Foreign References:
| JPS529775B2 | 1977-03-18 | |||
| JPS6210475A | 1987-01-19 | |||
| JP2005155334A | 2005-06-16 | |||
| JP2002021038A | 2002-01-23 | |||
| JP2001020844A | 2001-01-23 | |||
| US20070020097A1 | 2007-01-25 | |||
| JP2014234759A | 2014-12-15 |
Attorney, Agent or Firm:
TAKEZAWA Soichi et al. (JP)
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