Title:
【発明の名称】ウォータジェット推進装置用複式プロペラ推進装置
Document Type and Number:
Japanese Patent JP3214568
Kind Code:
B2
Abstract:
Dual propeller propulsion system for water crafts having two propellers (3, 4) fitted in the same axis outside the ends of an underwater housing (2) configured as a gondola so as to facilitate flow, said housing being placed under the hull of the water craft having a driving mechanism lodged in the underwater housing for both propellers (3, 4) to which the energy coming out for both propellers (3, 4) to which the energy coming out of the hull of the water craft is guided by means of a housing shank (18), one of the ends of which is mounted on the hull (24) of the water craft while the other is mounted in the underwater housing (2). Said propulsion system is characterized in that the underwater housing (2) forms part of a control device (20) by means of which the water jet coming out with increased energy from the front propeller (3) in the direction of travel of the water craft is guided with minimal energy loss and optimal irrotational flow to the back propeller (4) placed in the other end of the underwater housing in the direction of travel of the water craft. Both propellers (3, 4) are driven by the driving mechanism placed in the underwater housing in the same direction of rotation and are configured in the area of the respective water jet cross section in such a way that the differing flow energy entering both propellers (3, 4) is optimally used.
Inventors:
Reuter Rainhold
Cowl Stefan
Cowl Stefan
Application Number:
JP52107598A
Publication Date:
October 02, 2001
Filing Date:
November 07, 1997
Export Citation:
Assignee:
Shottel GMB Etch and Company Cage
International Classes:
B63H5/08; B63H5/10; B63H5/125; B63H23/24; B63H25/42; (IPC1-7): B63H5/10
Domestic Patent References:
| JP6263092A |
Other References:
【文献】国際公開96/15028(WO,A1)
Attorney, Agent or Firm:
Hisako Ishido (3 outside)