Title:
WATER JET PROPELLING DEVICE OF BOAT
Document Type and Number:
WIPO Patent Application WO/2003/037713
Kind Code:
A1
Abstract:
A water jet propelling device of a boat, wherein a rotating blade (16) having inducer articulated axial flow vane parts (16a), mixed flow vane parts (16b) connected to the axial flow vane parts without impact, and centrifugal vane parts (16c) connected to the mixed flow vane parts without impact are wound on the outer peripheral surface (15c) of a hub (15) having a gently sloped area (15c1) and a sharply sloped area (15c2) and continuously varying curvature, and the axial flow vane parts (16a) and mixed flow vane parts (16b) are wound on the gently sloped area (15c1) and the centrifugal vane parts (16c) are wound on the sharply sloped area (15c2).
Inventors:
ISHIGAKI EIICHI (JP)
Application Number:
PCT/JP2002/011286
Publication Date:
May 08, 2003
Filing Date:
October 30, 2002
Export Citation:
Assignee:
ISHIGAKI MECH IND (JP)
ISHIGAKI EIICHI (JP)
ISHIGAKI EIICHI (JP)
International Classes:
B63H11/08; B63H11/113; B63H20/00; F04D29/18; (IPC1-7): B63H11/08
Foreign References:
| JPH0367097A | 1991-03-22 | |||
| US6135831A | 2000-10-24 | |||
| JPH1059287A | 1998-03-03 |
Other References:
See also references of EP 1447325A4
Attorney, Agent or Firm:
Miyoshi, Hidekazu (9th Floor 2-3 Toranomon 1-chome Minato-ku, Tokyo, JP)
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