IL72194A - Propulsion system for ships - Google Patents
Propulsion system for shipsInfo
- Publication number
- IL72194A IL72194A IL7219484A IL7219484A IL72194A IL 72194 A IL72194 A IL 72194A IL 7219484 A IL7219484 A IL 7219484A IL 7219484 A IL7219484 A IL 7219484A IL 72194 A IL72194 A IL 72194A
- Authority
- IL
- Israel
- Prior art keywords
- propeller
- rotors
- shaft
- free
- rotor
- Prior art date
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Propultion system for ships The following description of the invention relates to improvements in ship's propultion systems and is particulary concerned with a ship azimutal propeller (with or without duct).
The intention in the following invention is to set up a combination of a propeller with two free rotating rotrs, conected and rotating on the same shaft.
-One rotor, for the propeller to enlarge the water massa influenced by the propeller, to increase the water pressure on the for side of the propeller disk decreasing the propeller load, and to equalize and smooth up the water inflow to the propeller disk.
-Second rotor after the propeller to reduce the rotation losses in the propeller race.
This combination of propeller and two rotors improves the propeller efficiency without enlarging the propeller diameter and/or chanqing the transmition gear by'forming a turbo charger in optimal di mentioned relations.
Therefor considerable amount of energy might be saved when compared to the already known ship jD pultion systems.
A good up to date literature search, carried by Ir. J.J. Muntjewerf, Marin Waqeninqen Holland named: "propultion research by Model Testing" is published in: "jahrbuch shiffbautechnischen geselschaft 77(1983) gives an over view on all the inovative sugestins for improving fuel efficiency currently known.
Claims (5)
1. General combination of non conventional propultion system composing of a propeller and two rotp s corectly dimentioned in their mutual relations, the first rotor for the propeller and the second after the propeller.
2. Arrangement as described in 1 charecterized in that the two rotors, the one for the propeller and the' second after the propeller are mounted on one shaft which is free to rotate ,
3. Arrangement according to 1 and 2 charecterized in that the propeller is mounted on a bevel gear driven verticaly from the engine and turning free on the shaft of the two rotors.
4. Arrangement according to 1 to 3 situated in shft housing for what is known as azimoutal or Z propultion systems, Eventualy with protector.
5. Arrangement according to 1 to 4 situated for or after a duct in such a way that the rotors and the .duct has mjtual positive influence on each other and on the
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL7219484A IL72194A (en) | 1984-06-21 | 1984-06-21 | Propulsion system for ships |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL7219484A IL72194A (en) | 1984-06-21 | 1984-06-21 | Propulsion system for ships |
Publications (2)
Publication Number | Publication Date |
---|---|
IL72194A0 IL72194A0 (en) | 1984-10-31 |
IL72194A true IL72194A (en) | 1994-08-26 |
Family
ID=11055150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL7219484A IL72194A (en) | 1984-06-21 | 1984-06-21 | Propulsion system for ships |
Country Status (1)
Country | Link |
---|---|
IL (1) | IL72194A (en) |
-
1984
- 1984-06-21 IL IL7219484A patent/IL72194A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IL72194A0 (en) | 1984-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RH | Patent void |