WO2002090180A1 - Vis a arbre spiral et gouvernail a angle de deplacement a segments multiples - Google Patents
Vis a arbre spiral et gouvernail a angle de deplacement a segments multiples Download PDFInfo
- Publication number
- WO2002090180A1 WO2002090180A1 PCT/JP2002/001330 JP0201330W WO02090180A1 WO 2002090180 A1 WO2002090180 A1 WO 2002090180A1 JP 0201330 W JP0201330 W JP 0201330W WO 02090180 A1 WO02090180 A1 WO 02090180A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- spiral
- rudder
- screw
- radius
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
Definitions
- the present invention relates to a propeller and a rudder mechanism in a semi-submerged catamaran (Japanese Patent Application Laid-Open No. Hei 2-4-13866). Background art
- propeller propulsion devices are the mainstream in ship propulsion systems, contra-rotating screws are used to increase propulsion efficiency, and water jets are used in high-speed ships.
- these methods had problems with the speed of propellers, and the water jet was not suitable for general use because of its low fuel efficiency.
- the purpose of the present invention is to provide a rudder in which the rudder surface draws an arc curve and the generation of eddy currents is reduced by constructing a multi-stage nodal angle structure. Disclosure of the invention
- the present invention is characterized in that both ends of a shaft of a helical shaft screw, which vertically penetrates the center of a helical rotation shaft, are fixed by bearings, and a head boss indicating case and a mounting portion of a support plate and a hull at the rear of the helical shaft are vertically attached to the hull.
- Left and right position control ⁇ The ability to operate the head and tail of the spiral screw in the vertical and horizontal directions at the both ends of the screw and the auxiliary rudder function by interlocking with the rudder reduces screw shake. Therefore, it is improved to a helical shaft screw with a steering function.
- the bow and stern rudder are configured in a multi-stage articulated shape, and the step joints are connected and configured by a vertical axis having a gradually decreasing radius, such as a band or a wire.
- the multi-stage articulated rudder that is configured in this way has a rudder surface that operates in an arc shape, which reduces the generation of eddy currents. Demonstrate stable function.
- Fig. 6 shows a multi-stage knotted rudder that is divided into 7 sections and 3 ° 4 ° 5 ° 6 ° 7 ° 8 ° 9 ° from the first section of the base.
- the structure of the outer shell can be handled by existing technologies such as beetle type and scale type.
- Fig. 1 is a side cutaway view of a helical screw, a multi-stage variable angle bow, a semi-submerged catamaran equipped with a stern rudder
- Fig. 2 is a front view of the same
- Fig. 3 is a helical screw
- Fig. 4 is a double helical screw
- Fig. 5 is a conventional spiral rod screw
- Fig. 6 is an exploded view of a multi-stage knot angle bow rudder
- Fig. 7 is a plan view of the bow rudder
- Fig. 8 Is the bow rudder operation diagram
- Fig. 9 is the stern rudder exploded view
- Fig. 10 is the stern rudder plan view
- Fig. 11 is the stern rudder ⁇ diagram
- Support case 2 Helical shaft 3 Shaft 4 Bearing 5 Bearing Support plate 6
- Support case mounting part 7 Support plate mounting part 8 Bow rudder
- the helical shaft screw of the present invention is different from any conventional propulsion device in the principle of its propulsion.
- the model was the meandering movement of the fish fins. When a fish swims upstream, the energy of the stream acts on the shape and movement of the tail fins, moving in the opposite direction to the stream, and is being used to propel the fish. Before the mechanism, everyone should understand how childish a propeller or waterjet propulsion system is.
- the scale of the helical shaft is an important factor. Ships require safety, fuel efficiency and speed. In order to increase the propulsion speed of the helical shaft screw, the radius of rotation of the helical shaft must be increased, and in order to increase the propulsion force, the shaft capacity must be increased to achieve the largest possible capacity and low-speed rotation. Therefore, it is possible to improve both fuel efficiency and speed.
- the present invention relates to a rudder and a propulsion mechanism for a semi-submerged catamaran (Patent No. 3 20085444), and the semi-submerged catamaran has been used for thousands of years. Invented based on the idea and form of floating in water, using the fish in the natural world as a model, negating the idea and form of floating on the surface of water, starting from a log boat that has been studied and improved over the years. It is a thing.
- spiral axis screw was inspired by the spiral pump of Archimedes (300 BC) and the spiral wings of Leonardo and Da Vinci. The point is that the motion is converted and grasped as a spiral rotational motion.
- the present invention has a possibility of improving the functions of a propulsion device and a steering device in energy saving and speeding up of a ship.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Toys (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001167457 | 2001-04-25 | ||
JP2001-167457 | 2001-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002090180A1 true WO2002090180A1 (fr) | 2002-11-14 |
Family
ID=19009839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/001330 WO2002090180A1 (fr) | 2001-04-25 | 2002-02-15 | Vis a arbre spiral et gouvernail a angle de deplacement a segments multiples |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2002090180A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568798Y2 (ja) * | 1975-03-17 | 1981-02-25 | ||
JPS6157099U (ja) * | 1984-09-20 | 1986-04-17 | ||
JPH01117999U (ja) * | 1988-02-05 | 1989-08-09 | ||
JPH06247384A (ja) * | 1991-09-02 | 1994-09-06 | Tadakatsu Eto | 半没水型双胴船に於ける螺旋形棒状スクリュー及び 船首舵 |
-
2002
- 2002-02-15 WO PCT/JP2002/001330 patent/WO2002090180A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568798Y2 (ja) * | 1975-03-17 | 1981-02-25 | ||
JPS6157099U (ja) * | 1984-09-20 | 1986-04-17 | ||
JPH01117999U (ja) * | 1988-02-05 | 1989-08-09 | ||
JPH06247384A (ja) * | 1991-09-02 | 1994-09-06 | Tadakatsu Eto | 半没水型双胴船に於ける螺旋形棒状スクリュー及び 船首舵 |
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