Title:
船舶の船体の下部に設置されるように構成されたポッドを備えている舶用推進装置
Document Type and Number:
Japanese Patent JP4753936
Kind Code:
B2
Abstract:
The marine propulsion set (1, 1', 1'') comprises: at least one pod (2) that is mechanically connected to a support strut (3, 3', 3''); a propeller (4) that is situated at the aft end of the pod and that has at least two blades (14); and an arrangement of at least three flow-directing fins (50 to 55, 3'A) that are fastened to the pod (2). This arrangement of fins forms a ring (5) that is substantially perpendicular to the longitudinal axis (X) of the pod (2), said ring lying within a zone (Zx) that is situated between the central portion of said support strut (3, 3', 3'') and the propeller. The propulsion set further comprises a nozzle (6) that surrounds, at least in part, the propeller (4) and said ring (5). Each of said blades (14) presents an end with an edge (7) coming flush with the inside wall of the nozzle (6) so that the propeller (4) constitutes the rotor of a screw pump.
Inventors:
Christian Gordan
Application Number:
JP2007510090A
Publication Date:
August 24, 2011
Filing Date:
April 26, 2005
Export Citation:
Assignee:
ALSTOM
International Classes:
B63H5/14; B63H5/07; B63H5/125; B63H5/16; B63H21/17
Domestic Patent References:
| JPH1081299A | 1998-03-31 |
Foreign References:
| US4427393A | 1984-01-24 |
Attorney, Agent or Firm:
Hiroshi Yamazaki
Mitsuo Tanaka
Yasushi Ohata
Mitsuo Tanaka
Yasushi Ohata