JPS5675297A - Water-jet propulsion device - Google Patents
Water-jet propulsion deviceInfo
- Publication number
- JPS5675297A JPS5675297A JP15159779A JP15159779A JPS5675297A JP S5675297 A JPS5675297 A JP S5675297A JP 15159779 A JP15159779 A JP 15159779A JP 15159779 A JP15159779 A JP 15159779A JP S5675297 A JPS5675297 A JP S5675297A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- bucket
- opening
- facing walls
- backward
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ship Loading And Unloading (AREA)
Abstract
PURPOSE: To prevent the entering of pebbles and gravel into a captioned device by providing a forward-backward switch bucket to open and close the rear opening of a steering nozzle with facing walls and bringing the facing walls opposite the upper and lower opening ends of the steering nozzle in the closed state of the switch bucket.
CONSTITUTION: When a forward-backward switch bucket 32 is turned to close the rear opening of a steering nozzle 23, the water running backward in the nozzle 23 is dashed to the inside of the bucket 32, and conducted reversely as arrows show along the insides of expanded parts 41aW41d. These reverse jet streams are introduced into a back injection nozzle 27 through connecting ports 26 and 26, and jetted out from the opening of the nozzle obliquely downward to the front. A ship is given a backward propulsion as their reaction force. At this stage, since facing walls 38a and 38b of the bucket 32 are brought opposite the opening ends 29a and 29b of the nozzle 23, even if pebbles, gravel, or the like eat into their gaps, the opening ends 29a and 29b and the facing walls 38a and 38b are made to cross each other vertically by the opening operation of the bucket 32, and pebbles, gravel, or the like are dropped downward without causing the gnawing between the bucket 32 and the nozzle 23.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15159779A JPS5675297A (en) | 1979-11-22 | 1979-11-22 | Water-jet propulsion device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15159779A JPS5675297A (en) | 1979-11-22 | 1979-11-22 | Water-jet propulsion device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5675297A true JPS5675297A (en) | 1981-06-22 |
Family
ID=15521995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15159779A Pending JPS5675297A (en) | 1979-11-22 | 1979-11-22 | Water-jet propulsion device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5675297A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60213599A (en) * | 1984-04-06 | 1985-10-25 | Mitsuo Kobayashi | Simple type jet propelling device |
-
1979
- 1979-11-22 JP JP15159779A patent/JPS5675297A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60213599A (en) * | 1984-04-06 | 1985-10-25 | Mitsuo Kobayashi | Simple type jet propelling device |
JPH0347238B2 (en) * | 1984-04-06 | 1991-07-18 | Mitsuasa Kobayashi |
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