Title:
WATER-JET PROPULSIVE APPARATUS OF BOAT
Document Type and Number:
WIPO Patent Application WO/1998/028185
Kind Code:
A1
Abstract:
A driving ring (13) is provided between a jet casing (8) and a deflector (15) of a water-jet propulsive apparatus (1) in such a way as to be turned horizontally or vertically. The deflector (15) is provided perpendicularly to the driving ring (13) and swingably vertically or horizontally to switch the jet direction of a water-jet (J) vertically. A steering rudder (19) is attached to the lower part of the driving ring (13) or the deflector (15) to complement the steering function of the deflector (15). A plurality of protrusions (21 and 22) are formed at the exit part of the deflector (15), and external air accompanying spaces (S1 and S2) are formed in the deflector (15).
Inventors:
ISHIGAKI EIICHI (JP)
OURA KAZUMITSU (JP)
OURA KAZUMITSU (JP)
Application Number:
PCT/JP1997/004714
Publication Date:
July 02, 1998
Filing Date:
December 19, 1997
Export Citation:
Assignee:
ISHIGAKI MECH IND (JP)
ISHIGAKI EIICHI (JP)
OURA KAZUMITSU (JP)
ISHIGAKI EIICHI (JP)
OURA KAZUMITSU (JP)
International Classes:
B63H11/113; (IPC1-7): B63H11/107; B63H25/46
Foreign References:
| JPH0282697U | 1990-06-26 | |||
| JPH0242898U | 1990-03-23 | |||
| JPS49113392A | 1974-10-29 | |||
| JPS52140594U | 1977-10-25 | |||
| JPS62205894A | 1987-09-10 | |||
| JPS493394A | 1974-01-12 | |||
| JPH04110298A | 1992-04-10 | |||
| JPS5440496A | 1979-03-29 |
Attorney, Agent or Firm:
Miyoshi, Hidekazu (3rd floor 2-3, Toranomon 1-chom, Minato-ku Tokyo 105, JP)
Download PDF:
Previous Patent: A DEVICE AND METHOD FOR PROTECTING BOAT HULLS, ESPECIALLY AGAINST BIOLOGICALLY ACTIVE ORGANISMS
Next Patent: COMBINED AIRCRAFT
Next Patent: COMBINED AIRCRAFT