EP1270402B1 - Dispositif de propulsion de navire en fuseau - Google Patents

Dispositif de propulsion de navire en fuseau Download PDF

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Publication number
EP1270402B1
EP1270402B1 EP02011481A EP02011481A EP1270402B1 EP 1270402 B1 EP1270402 B1 EP 1270402B1 EP 02011481 A EP02011481 A EP 02011481A EP 02011481 A EP02011481 A EP 02011481A EP 1270402 B1 EP1270402 B1 EP 1270402B1
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EP
European Patent Office
Prior art keywords
azimuth
ship
propeller device
pod
azimuth propeller
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.)
Expired - Lifetime
Application number
EP02011481A
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German (de)
English (en)
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EP1270402A1 (fr
Inventor
Katsunori Mitsubishi Heavy Ind. Ltd. Tsuboguchi
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Publication of EP1270402A1 publication Critical patent/EP1270402A1/fr
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    • 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
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • 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
    • 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
    • B63H25/50—Slowing-down means not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis

Definitions

  • the present invention relates to an azimuth propeller device. More specifically, the present invention relates to an azimuth propeller device which may be attached to the bottom of a ship to drive and steer the ship.
  • a conventional ship is provided with a propeller and a rudder separately provided with the propeller, which are attached to the stern of the ship so that the driving force for the ship is exerted by the propeller, and operations, such as turning of the ship, are performed by the rudder.
  • FIG. 12 is a schematic diagram showing an attachment of an azimuth propeller device at the stern portion of a ship.
  • FIG. 13A is a diagram showing the right hand side view of the azimuth propeller device.
  • FIG. 13B is a diagram showing a cross-sectional view of the azimuth propeller device shown in FIG. 13A taken along the line F-F.
  • the numeral 1 indicates a rear portion of the ship's bottom
  • 2 indicates an azimuth pod
  • 3 indicates a shaft
  • 4 indicates a current plate member
  • 5 indicates a propeller member
  • 10 indicates an azimuth propeller device.
  • the azimuth propeller device 10 is rotatably attached to the rear portion of the ship's bottom 1 via the shaft 3.
  • the azimuth propeller device 10 includes the propeller member 5, the azimuth pod 2, and the current plate member 4.
  • the propeller member 5, which exerts the driving force for the ship, may be attached to the front or back of the azimuth device 10.
  • the azimuth pod 2 accommodates a propeller drive mechanism (not shown in the figures) in the inside thereof.
  • the current plate member 4 is integrally fixed to the upper portion of the azimuth pod 2 and has a streamline cross sectional shape.
  • the current plate member 4 is attached to the lower portion of the shaft 3 which extends in the vertical direction, and the upper portion of the shaft 3 is coupled with a driving mechanism (not shown in the figures), which is disposed in the hull so that the shaft 3, the current plate member 4, the azimuth pod 2, and the propeller member 5 are integrally rotated.
  • a motor used for outputting the driving force for the propeller member 5 may be disposed in the azimuth pod 2 or in the hull of the ship.
  • EP-A-1 013 544 discloses an azimuth propeller device with so-called “reaction fins” for swirling the water flow to increase the efficiency of propulsion.
  • the present invention takes into consideration the above-mentioned circumstances, and has as an object to provide an azimuth propeller device which is capable of maintaining the course of a ship without rotating the entire azimuth propeller device, and the steering force thereof is further improved when making a ship turn .
  • the present invention provides an azimuth propeller device including: a current plate member; an azimuth pod fixed to a lower portion of the current plate member, the azimuth pod being provided with a propeller member; and an auxiliary steering member provided with the current plate member, wherein the current plate member and the azimuth pod are provided so as to be rotatable together along a vertical axis with respect to the bottom of a ship.
  • the auxiliary steering member is a rear flap member rotatably attached to a trailing edge portion of the current plate member.
  • the auxiliary steering member is a front flap member rotatably attached to a front edge portion of the current plate member.
  • the auxiliary steering member is a front flap member rotatably attached to a front edge portion of the current plate member, and a rear flap member rotatably attached to a trailing edge portion of the current plate member.
  • the present invention also provides an azimuth propeller device additionally including a vertical stabilizer disposed at a lower portion of the azimuth pod; and a trailing edge flap member rotatably attached to a rear edge portion of the vertical stabilizer.
  • the auxiliary steering member is a pair of open-close flap members attached to a side wall portion of the current plate member, the pair of open-close flap members being disposed so as to open and close independently.
  • the pair of open-close flap members are fully opened to make an emergency stop of a ship.
  • auxiliary steering member set forth above is combined with another auxiliary steering member described above.
  • the present invention also provides the above azimuth propeller device further including: a pair of open-close members attached to a side wall portion of the vertical stabilizer, the pair of open-close flap members being disposed so as to open and close independently.
  • an auxiliary steering member is provided with the current plate member of the azimuth propeller device, it becomes possible to maintain the direction of a ship by the operation of the auxiliary steering member, without the necessity of operating the whole azimuth propeller device, and hence, the straightness of the travel of the ship can be secured.
  • the steering force of the azimuth propeller device can be improved by operating the auxiliary steering member, a desired turning of the ship can be made by decreasing the steering angle of the azimuth propeller device as compared with the case where only the azimuth propeller device is used to make a ship turn.
  • the azimuth propeller device further includes at least one radiation member provided with an outer periphery of the azimuth pod, wherein the propeller member is a POD propeller member provided with the azimuth pod, and a motor which drives the POD propeller member is provided inside the azimuth pod.
  • the radiation member is a fin extending in the front and back direction of the azimuth pod.
  • the fin is twisted in the rotation direction of the POD propeller member from the front to back of the fin.
  • the above azimuth propeller device since at least one radiation member is provided with the outer periphery of the azimuth pod, it becomes possible to effectively release the heat, which is generated by the rotation of the motor inside the azimuth pod, into the surrounding water via the radiation member. That is, it becomes possible to effectively carry out a water-cooling operation using water of the ocean, a river, a lake, etc., in which the ship is traveling, and hence the air cooling operation can be eliminated or decreased to a minimum level. Accordingly, it has a remarkable effect on the reduction in the size and cost of the azimuth propeller device.
  • the fins extending in the front and back direction of the azimuth pod is adopted as a radiation member, it becomes possible to secure a large heat transfer area to improve the radiation efficiency.
  • the present invention can also contribute to the improvement in the driving force.
  • FIGS. 1A and 1B The azimuth propeller device according to an embodiment of the present invention will be described with reference to FIGS. 1A and 1B. Note that in the following figures, elements which are the same as those described in the prior art are indicated by using the same numerals, and explanations thereof will be omitted.
  • the numeral 1 indicates a rear portion of the ship's bottom
  • 2 indicates an azimuth pod
  • 3 indicates a shaft
  • 4 indicates a current plate member
  • 5 indicates a propeller member
  • 6 indicates a rear flap member
  • 10A indicates an azimuth propeller device.
  • the azimuth propeller device 10A is rotatably attached to the rear portion of the ship's bottom 1 via the shaft 3.
  • the term "the rear portion of the ship's bottom” means a portion of the bottom of a ship which is located at the back of a hull with respect to the travelling direction of the ship.
  • the azimuth propeller device 10A includes the azimuth pod 2 accommodating a propeller drive mechanism (not shown in the figures) in the inside thereof, to which the propeller member 5 that exerts the driving force for the ship by delivering water backwards, is attached to the front or back thereof (back in the device 10A shown in FIG. 1A).
  • the current plate member 4 having a streamlined cross sectional shape is integrally fixed to the upper portion of the azimuth pod 2.
  • the current plate member 4 is attached to the lower portion of the shaft 3 which extends in the vertical direction, and the upper portion of the shaft 3 is coupled with a driving mechanism (not shown in the figures), which is disposed in the hull so that the shaft 3, the current plate member 4, the azimuth pod 2, and the propeller member 5 can be integrally rotated.
  • a motor used for outputting the driving force for the propeller member 5 may be disposed in the azimuth pod 2 or in the hull of the ship.
  • the rear flap member 6 is attached to a trailing edge portion 4a of the current plate member 4 as an auxiliary steering member.
  • the rear flap member 6 is a thin plate member extending in the vertical direction.
  • the front end portion of the rear flap member 6 is rotatably supported along a rotation axis 7 in the vertical direction with respect to the current plate member 4 so that the rear end portion 6a of the rear flap member 6 can be pivoted around the rotation axis 7 in the horizontal direction.
  • a part or the whole of the driving mechanism (not shown in the figure) for pivoting the rear flap member 6 may be accommodated in the current flow plate member 4, and its operation is controlled to be linked with that of the azimuth propeller device 10A. That is, the timing, the direction, and the angle for pivoting the rear flap member 6 are controlled to be interlocked with the rotation angle or the driving force of the azimuth propeller device 10A.
  • the azimuth propeller device 10A having the above-mentioned structure is capable of driving a ship using the driving force generated by the rotation of the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10A with respect to the rear portion of the ship's bottom 1 to change the travelling course of the ship.
  • the ship when the ship travels in a certain direction, it becomes possible, by using the azimuth propeller device 10A, to maintain the direction of the ship by appropriately pivoting the rear flap member 6. That is, the ship provided with the azimuth propeller device 10A can suitably travel in a straight line by the operation of only the rear flap member 6, which is significantly smaller in size and weight compared with the azimuth propeller device 10A, without the necessity of rotating the entire azimuth propeller device 10A within a small angle range by using a huge driving mechanism.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10A is employed. That is, according to the embodiment of the present invention provided with the rear flap member 6, a desired turn of the ship can be made by using substantially the same steering force although the steering angle of the azimuth propeller device 10A required is made smaller as compared with the case where only the azimuth propeller device 10A is used.
  • the rear flap member 6 is rotated in the same direction as the azimuth propeller device 10A. That is, when the ship makes a right turn with respect to its traveling direction, the trailing edge portion 4a of the azimuth propeller device 10A is rotated in the right hand side direction and the rear end portion 6a of the rear flap member 6 is also rotated in the right hand side direction with respect to the traveling direction of the ship.
  • FIGS. 2A and 2B the numeral 1 indicates a rear portion of the ship's bottom, 2 indicates an azimuth pod, 3 indicates a shaft, 4 indicates a current plate member, 5 indicates a propeller member, 8 indicates a front flap member, and 10B indicates an azimuth propeller device, and elements which are the same as those described in the first embodiment are indicated by using the same numerals, and the explanations thereof will be omitted.
  • the front flap member 8 is attached to a front edge portion 4b of the current plate member 4 as an auxiliary steering member.
  • the front flap member 8 is a thin plate member extending in the vertical direction, and is attached to the current plate member 4 so as to be protruding forward from the front edge portion 4b.
  • the rear end portion of the front flap member 8 is rotatably supported along a rotation axis 9 in the vertical direction with respect to the current plate member 4 so that the front end portion 8a of the front flap member 8 can be pivoted around the rotation axis 9 in the horizontal direction.
  • a part or the whole of the driving mechanism (not shown in the figure) for pivoting the front flap member 8 may be accommodated in the current flow plate member 4, and its operation is controlled to be linked with that of the azimuth propeller device 10B. That is, the timing, the direction, and the angle for pivoting the front flap member 8 are controlled to be interlocked with the rotation angle or the driving force of the azimuth propeller device 10B.
  • the azimuth propeller device 10B having the above-mentioned structure is capable of driving a ship using the driving force generated by rotating the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10B with respect to the rear portion of the ship's bottom 1 to change the course of travel of the ship.
  • the adoption of the front flap member 8 has an advantage that the effect of the water flow generated by the rotation of the propeller member 5 is likely to be smaller as compared with the case where the rear flap member 6 is adopted.
  • the ship provided with the azimuth propeller device 10B can suitably travel in a straight line by the operation of only the front flap member 8, which is significantly smaller in size and weight compared with the azimuth propeller device 1 0B, without the necessity of rotating the entire azimuth propeller device 10B within a small angle range by using a huge driving mechanism.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10B is employed. That is, according to this embodiment of the present invention provided with the front flap member 8, a desired turning of the ship can be made by using substantially the same steering force although the steering angle of the azimuth propeller device 10B required is made smaller as compared with the case where only the azimuth propeller device 10B is employed. Further, when making a turn of relatively small turning angle (i.e., a large turning radius), only the front flap member 8 may need to be operated, and it is not necessary to rotate the azimuth propeller device 10B at all to obtain a required steering force.
  • relatively small turning angle i.e., a large turning radius
  • the front flap member 8 is rotated in the same direction as the azimuth propeller device 10B. That is, when the ship makes a right turn with respect to its traveling direction, the trailing edge portion of the azimuth propeller device 10B is rotated in the right hand side direction and the front end portion 8a of the front flap member 8 is also rotated in the right hand side direction with respect to the traveling direction of the ship.
  • FIGS. 3A and 3B the numeral 1 indicates a rear portion of the ship's bottom, 2 indicates an azimuth pod, 3 indicates a shaft, 4 indicates a current plate member, 5 indicates a propeller member, 6 indicates a rear flap member, 8 indicates a front flap member, and 10C indicates an azimuth propeller device, and elements which are the same as those described in the first and second embodiments are indicated by using the same numerals, and the explanation thereof will be omitted.
  • the rear flap member 6 and the front flap member 8 are attached to a trailing edge portion 4a and a front edge portion 4b, respectively, of the current plate member 4 as auxiliary steering members. That is, the rear flap member 6 described in the first embodiment, and the front flap member 8 described in the second embodiment are combined in this third embodiment according to the present invention.
  • the operations of the rear flap member 6 and the front flap member 8 are controlled to be linked with the azimuth propeller device 10C. That is, the timing, the direction, and the angle for pivoting the rear flap member 6 and the front flap member 8 are controlled to be interlocked with the rotation angle or the driving force of the azimuth propeller device 10C.
  • the azimuth propeller device 10C having the above-mentioned structure is capable of driving a ship using the driving force generated by rotating the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10C with respect to the rear portion of the ship's bottom 1 to change the course of travel of the ship.
  • the ship provided with the azimuth propeller device 10C can suitably travel in a straight line by the operation of only the rear flap member 6 and the front flap member 8, each of which is significantly smaller in size and weight compared with the azimuth propeller device 10C, without the necessity of rotating the entire azimuth propeller device 10C within a small angle range by using a huge driving mechanism.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10C is employed. That is, according to this embodiment of the present invention provided with the rear flap member 6 and the front flap member 8, a desired turn of the ship can be made by using substantially the same steering force although ihe steering angle of the azimuth propeller device 10C required is made smaller as compared with the case where only the azimuth propeller device 10C is used.
  • the rear flap member 6 and the front flap member 8 are rotated in the same direction as the azimuth propeller device 10C. That is, when the ship makes a right turn with respect to its traveling direction, the trailing edge portion 4a of the azimuth propeller device 10C is rotated in the right hand side direction, and the rear end portion 6a of the rear flap member 6 and the front end portion 8a of the front flap member 8 are also rotated in the right hand side direction with respect to the traveling direction of the ship.
  • the rear flap member 6 and the front flap member 8 may also be effectively used for stopping the ship in an emergency. That is, if the rear flap member 6 and the front flap member 8 are rotated 90 degrees in the right hand side and left hand side direction, respectively, with respect to the travelling direction of the ship, thereby forming a plate-shaped resistance member orthogonal to the traveling direction of the ship, the traveling distance required for the ship to make an emergency stop can be shortened.
  • FIGS. 4A and 4B the numeral 1 indicates a rear portion of the ship's bottom, 2 indicates an azimuth pod, 3 indicates a shaft, 4 indicates a current plate member, 5 indicates a propeller member, 10D indicates an azimuth propeller device, and I 1R and 11L indicate (right and left) open-close flap members.
  • Elements which are the same as those described in the first through third embodiments are indicated by using the same numerals, and the explanations thereof will be omitted.
  • the open-close flap members 11L and 11R are attached to side wall portions of the current plate member 4 as auxiliary steering members.
  • the operations of the open-close flap members 11L and 11 R are controlled to be linked with the azimuth propeller device 10D. That is, the timing, the direction, and the angle for pivoting the pair of open-close flap members 11L and 11R are controlled to be interlocked with the rotation angle or the driving force of the azimuth propeller device 10D.
  • the numeral 11a in FIGS. 4A and 4B indicates a shaft for supporting the rotation of the open-close flap members 11L and 11R.
  • the azimuth propeller device 10D having the above-mentioned structure is capable of driving a ship using the driving force generated by rotating the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10D with respect to the rear portion of the ship's bottom I to change the travelling course of the ship.
  • the ship provided with the azimuth propeller device 10D can suitably travel in a straight line by the operation of only the open-close flap members 11L and 11R, each of which is significantly small in size and weight as compared with those of the azimuth propeller device 10D, without the necessity of rotating the entire azimuth propeller device 10D within a small angle ranee by using a huge driving mechanism.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10D is employed. That is, according to this embodiment of the present invention provided with the open-close flap members 11L and 11R, a desired turning of the ship can be made by using substantially the same steering force although the steering angle of the azimuth propeller device 10D required is made smaller as compared with the case where only the azimuth propeller device 10D is used.
  • the open-close flap member 11L which is attached to the left hand side wall portion of the current plate member 4 in the azimuth propeller device 10D, is opened and the open-close flap member 11R disposed at the right hand side wall portion is closed.
  • the open-close flap members 11L and 11R may also be effectively used for stopping the ship in an emergency. That is, if the open-close flap members 11L and 11R are rotated 90 degrees in the right hand side and left hand side direction, respectively, with respect to the travelling direction of the ship, thereby forming a plate-shaped resistance member orthogonal to the traveling direction of the ship, the traveling distance required for the ship to make an emergency stop can be shortened.
  • the structure used for providing the open-close flap members 11L and 11R on the respective side wall portion of the current plate member 4 has an advantage, as compared with the structure used for providing the above mentioned rear flap member 6 or the front flap member 8 with the trailing edge portion 4a and the front edge portion 4b, respectively, of the current plate member 4, in that it becomes easy to design the structure since a large installation area can be secured for the flap members 11L and 11R.
  • FIGS. 5A and 5B the numeral 2 indicates an azimuth pod, 4 indicates a current plate member, 5 indicates a propeller member, 10E indicates an azimuth propeller device, 12 indicates a vertical stabilizer (fin), and 13 indicates a trailing edge flap member.
  • Elements which are the same as those described in the first through fourth embodiments are indicated by using the same numerals, and the explanations thereof will be omitted. Note that in FIG. 5, the upper portion of the azimuth propeller device 10E, i.e., a rear portion of the ship's bottom 1 and a shaft 3, are not shown.
  • the vertical stabilizer 12 is disposed at the bottom portion of the azimuth pod 2 as a current plate member, and the trailing edge flap member 13 is attached to a rear edge portion 12a of the vertical stabilizer 12 as an auxiliary steering member. That is, the vertical stabilizer 12 which exerts the same function as the current plate member 4 is disposed at the lower portion of the azimuth pod 2, and the trailing edge flap member 13 is attached to the vertical stabilizer 12.
  • the trailing edge flap member 13 similar to the rear end flap member 6 attached to the current plate member 4 explained in the first embodiment, is a thin plate member extending in the vertical direction.
  • the front end portion of the trailing edge flap member 13 is rotatably supported along a rotation axis (not shown in the figures) extending in the vertical direction with respect to the vertical stabilizer 12 so that a rear end portion 13a of the trailing edge flap member 13 may be pivoted around the rotation axis 9 in the horizontal direction.
  • a part or the whole of the driving mechanism (not shown in the figures) for pivoting the trailing edge flap member 13 may be accommodated in the vertical stabilizer 12, and its operation is controlled to be linked with that of the azimuth propeller device 10E. That is, the timing, the direction, and the angle for pivoting the trailing edge flap member 13 are controlled to be interlocked with the rotation angle or the driving force of the azimuth propeller device 10E.
  • the azimuth propeller device 10E having the above-mentioned structure is capable of driving a ship using the driving force generated by rotating the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10E including the vertical stabilizer 12 with respect to the rear portion of the ship's bottom 1 to change the course of travel of the ship.
  • the ship provided with the azimuth propeller device 10E can suitably travel in a straight line by the operation of only the trailing edge flap member 13 which is significantly smaller in size and weight compared with the azimuth propeller device 10E, without the necessity of rotating the entire azimuth propeller device 10E within a small angle range by using a huge driving mechanism.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10E is employed. That is, according to this embodiment of the present invention provided with the trailing edge flap member 13, a desired turning of the ship can be made by using substantially the same steering force although the steering angle of the azimuth propeller device 10E required is made smaller as compared with the case where only the azimuth propeller device 10E is employed.
  • the trailing edge flap member 13 is rotated in the same direction as the azimuth propeller device 10E. That is, when the ship makes a right turn with respect to its traveling direction, the trailing edge portion 4a of the azimuth propeller device 10E is rotated in the right hand side direction and the rear end portion 13a of the trailing edge flap member 13 is also rotated in the right hand side direction with respect to the traveling direction of the ship.
  • the vertical stabilizer 12 fixed to the bottom of the azimuth pod 2 including the trailing edge flap member 13 has an advantage in that the disturbance in the water flow in the vicinity of the bottom of the ship can be minimized even if the steering operation is carried out by using the trailing edge flap member 13 since the distance between the bottom of the ship and the vertical stabilizer 12 is relatively large.
  • FIGS. 6A and 6B the numeral 1 indicates a rear portion of the ship's bottom, 2 indicates an azimuth pod, 3 indicates a shaft, 4 indicates a current plate member, 5 indicates a propeller member, 6 indicates a rear flap member, 10F indicates an azimuth propeller device, and 11R and 11L indicate (right and left) open-close flap members.
  • Elements which are the same as those described in the first through fourth embodiments are indicated using the same numerals, and the explanations thereof will be omitted.
  • the azimuth propeller device 10F according to the sixth embodiment is formed by combining the first and fourth embodiments according to the present invention described above, and the rear flap member 6 and the open-close flap members 11L and 11R are provided as auxiliary steering members. As mentioned above, the operation of the rear flap member 6 and the open-close flap members are controlled to be linked with the azimuth propeller device 10F.
  • the azimuth propeller device 10F having the above-mentioned structure is capable of driving a ship using the driving force generated by rotating the propeller member 5, and obtaining steering function by rotating the whole azimuth propeller device 10F with respect to the rear portion of the ship's bottom 1 to change the course of travel of the ship.
  • the steering force for the ship can be further improved as compared with the case where only the azimuth propeller device 10F is employed. That is, according to this embodiment of the present invention provided with the open-close flap members 11L andI 1R, a desired turning of the ship can be made by using substantially the same steering force although the steering angle of the azimuth propeller device 10F required is made smaller as compared with the case where only the azimuth propeller device 10F is used.
  • the open-close flap members 11L and 11 R may be rotated 90 degrees in the right hand side and left hand side direction, respectively, with respect to the travelling direction of the ship, thereby forming a plate-shaped resistance member orthogonal to the traveling direction of the ship in order to shorten the traveling distance required for the ship to make an emergency stop.
  • the azimuth propeller device 10G according to the seventh embodiment is formed by combining the second and fourth embodiments of the present invention described above. That is, in the azimuth propeller device 10G, a structure is adopted in which the front flap member 8 shown in FIGS. 2A and 2B and the open-close flap members 11R and 11L shown in FIGS. 4A and 4B are combined so that a further improvement in the straightness of the travel and steering of the ship can be expected by combining the operations of the two members 8 and 11L and 11R.
  • the open-close flap members 11L and I 1R may be rotated 90 degrees in the right hand side and left hand side direction, respectively, with respect to the direction of travel of the ship, thereby forming a plate-shaped resistance member orthogonal to the direction of the travel of the ship in order to shorten the traveling distance required for the ship to make an emergency stop.
  • the azimuth propeller device 10H according to the eighth embodiment is formed by combining the third and fourth embodiments of the present invention described above. That is, in the azimuth propeller device 10H, a structure is adopted in which the rear flap member 6 shown in FIGS. 1A and 1B, the front flap member 8 shown in FIGS. 2A and 2B, and the open-close flap members 11R and 11L shown in FIGS. 4A and 4B are combined so that a further improvement in the straightness in the travel and steering of the ship can be expected by combining the operations of the members 6 and 8 and 11L and 11R.
  • the open-close flap members 11L and 11R may be rotated at 90 degrees in the right hand side and left hand side direction, respectively, with respect to the travelling direction of the ship, and the rear flap member 6 and the front flap member 8 may be operated in the opposite directions, thereby forming two plate-shaped resistance members orthogonal to the traveling direction of the ship in order to shorten the traveling distance required for the ship to make an emergency stop.
  • the azimuth propeller device 10I according to the ninth embodiment is formed by combining the fourth and fifth embodiments of the present invention described above. That is, in the azimuth propeller device 10I, a structure is adopted in which the vertical stabilizer 12 and the trailing edge flap member 13 shown in FIGS. 5A and 5B and the open-close flap members 11R and 11L shown in FIGS. 4A and 4B are combined so that a further improvement in the straightness in the travel and steering of the ship can be expected by combining the operations of the members 12 and 13 and 11L and 11R.
  • the open-close flap members 11L and 11R may be rotated 90 degrees in the right hand side and left hand side direction, respectively, with respect to the travelling direction of the ship, thereby forming a plate-shaped resistance member orthogonal to the traveling direction of the ship in order to shorten the traveling distance required for the ship to make an emergency stop.
  • the auxiliary steering member(s) is provided, it becomes possible to obtain excellent straightness in the travel of the ship without the necessity of operating the entire azimuth propeller device, and to improve the steering function of the ship.
  • the azimuth propeller device 10J according to the tenth embodiment is formed by combining the first embodiment of the present invention described above with a (plurality of) radiation fins 14 (i.e., a radiation member).
  • the azimuth propeller device 10J includes the azimuth pod 2 accommodating a motor for driving the POD propeller (not shown in the figures) in the inside thereof, to which the POD propeller member 5 that exerts the driving force for the ship by driving water backwards, is attached to the front or back thereof (back in the device 10A shown in FIG. 1A).
  • a number of radiation fins 14 are attached to the outer periphery of the azimuth pod 2 so as to extend therefrom.
  • Each of the radiation fins 14 is a plate-like member extending in the front-to-back direction of the azimuth pod 2, i.e., the travelling direction by the driving force of the POD propeller member 5. It is preferable to use a member having excellent thermal conductivity for the radiation fins 14.
  • the present invention is not limited to this particular configuration.
  • components required in an air-cooling system of a conventional art such as a power source for the air-cooling system, a driving source for actuating an impelling means, such as a fan, and a passage for the cooling air, become unnecessary, and hence, not only can the space, energy consumption, and cost be reduced, but also the durability and the reliability of the azimuth propeller device can be improved according to the tenth embodiment of the present invention.
  • the water-cooling system of the embodiment of the present invention if the entire heating value cannot be covered by the water-cooling system of the embodiment of the present invention, such as for the case where the heating value of the motor is large, it is possible to use the water-cooling system of the present invention together with the conventional air-cooling system. In such a case, since the burden for the air-cooling system can be eased as compared with that in the conventional system, the size of the fan or of the passage for the cooling air can be decreased.
  • FIGS. 11A and 11B Note that elements which are the same as those described in the embodiment shown in FIGS. 1A through 10B are indicated by using the same numerals, and the explanations thereof will be omitted.
  • the azimuth propeller device 10K according to the eleventh embodiment is formed by combining the first embodiment of the present invention described above with a current plate fin 15 which is adopted as a radiation member.
  • the current plate fin 15 is formed by, in general, twisting the above-mentioned fin 14 in the rotation direction of the POD propeller 5 from the front to the back thereof.
  • the POD propeller 5 rotates in a clockwise direction viewed from the front (in the traveling direction) of the azimuth propeller device 10K as indicated by the arrow 13 in FIG. 11B, and each of the current plate fins 15 is angled or inclined from the front toward the back.
  • the inclination is due to the twist of the current plate fin 15 so as to upturn the tail portion of the current plate fin 15 in the rotation direction of the POD propeller 5 with respect to the axis of the azimuth pod 2. That is, an inclination surface 15a of the current plate fin 15 is formed along the flow of water which is drawn by the POD propeller 5.
  • the current plate fins 15 having the above-mentioned structure are adopted, it becomes possible to obtain water flow adjusting function for the water drawn by the POD propeller 5 in addition to the above-mentioned water-cooling function. Accordingly, it becomes possible to decrease the loss, and hence, the driving force exerted by the rotating the POD propeller 5 can be increased.
  • the structures of the azimuth propeller device according to the embodiments of the present invention are not limited to those described above, and can be modified within the scope of the present invention.
  • the structure according to any one of the second to ninth embodiments of the present invention can suitably be combined with the radiation member described in the tenth or eleventh embodiment of the present invention.
  • a member having an excellent thermal conductive property may be intervened between the azimuth pod and the motor so as to further enhance the thermal conduction from the motor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Toys (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Catching Or Destruction (AREA)
  • Harvester Elements (AREA)

Claims (10)

  1. Dispositif de propulsion de navire azimutal, comprenant :
    un élément plaque de courant (4) ;
    une nacelle azimutale (2) fixée à une partie inférieure dudit élément plaque de courant (4), ladite nacelle azimutale (2) étant équipée d'un élément de propulsion (5), et ledit élément plaque de courant (4) et ladite nacelle azimutale (2) étant prévus de manière à pouvoir tourner ensemble autour d'un axe vertical par rapport au fond d'un navire, caractérisé en ce que le dispositif comprend :
    un élément de direction auxiliaire (6, 8, 11R, 11L) équipé dudit élément plaque de courant (4).
  2. Dispositif de propulsion de navire azimutal selon la revendication 1, dans lequel ledit élément de direction auxiliaire comprend un élément volet arrière (6) fixé de manière rotative à une partie de bord de fuite (4a) dudit élément plaque de courant (4).
  3. Dispositif de propulsion de navire azimutal selon la revendication 1 ou 2, dans lequel ledit élément de direction auxiliaire comprend un élément volet avant (8) fixé de manière rotative à une partie de bord d'attaque (4b) dudit élément plaque de courant (4).
  4. Dispositif de propulsion de navire azimutal selon la revendication 1, 2 ou 3, comprenant en outre :
    un stabilisateur vertical (12) disposé au niveau d'une partie inférieure de ladite nacelle azimutale (2) ; et
    un élément volet à bord de fuite (13) fixé de manière rotative à une partie de bord arrière (12a) dudit stabilisateur vertical (12).
  5. Dispositif de propulsion de navire azimutal selon l'une quelconque des revendications 1 à 4, dans lequel ledit élément de direction auxiliaire comprend en outre une paire d'éléments volets à ouverture-fermeture (11R, 11L) fixés à une partie dé paroi latérale dudit élément plaque de courant (4), ladite paire d'éléments volets à ouverture-fermeture (11R, 11L) étant adaptée pour être indépendamment ouverte et fermée.
  6. Dispositif de propulsion de navire azimutal selon la revendication 6, dans lequel ladite paire d'éléments volets à ouverture-fermeture (11R, 11L) peut être entièrement ouverte pour réaliser un arrêt d'urgence d'un navire.
  7. Dispositif de propulsion de navire azimutal selon la revendication 4, comprenant en outre :
    une paire d'éléments à ouverture-fermeture fixés à une partie de paroi latérale dudit stabilisateur vertical (12), ladite paire d'éléments volets à ouverture-fermeture étant adaptée pour être indépendamment ouverte et fermée.
  8. Dispositif de propulsion de navire azimutal selon l'une quelconque des revendications 1 à 7, comprenant en outre :
    au moins un élément faisant saillie (14 ; 15) prévu radialement à une périphérie extérieure de ladite nacelle azimutale (2), dans lequel ledit élément de propulsion est un élément de propulsion POD (5) et un moteur qui entraíne ledit élément de propulsion POD (5) est prévu à l'intérieur de ladite nacelle azimutale (2).
  9. Dispositif de propulsion de navire azimutal selon la revendication 8, dans lequel ledit élément faisant saillie est une ailette (14 ; 15) s'étendant vers l'avant et vers l'arrière de ladite nacelle azimutale (2).
  10. Dispositif de propulsion de navire azimutal selon la revendication 9, dans lequel ladite ailette (15) est vrillée dans le sens de rotation dudit élément de propulsion POD (5) de l'avant vers l'arrière de ladite ailette (5).
EP02011481A 2001-06-29 2002-05-24 Dispositif de propulsion de navire en fuseau Expired - Lifetime EP1270402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001199415 2001-06-29
JP2001199415A JP2003011893A (ja) 2001-06-29 2001-06-29 アジマス推進器

Publications (2)

Publication Number Publication Date
EP1270402A1 EP1270402A1 (fr) 2003-01-02
EP1270402B1 true EP1270402B1 (fr) 2004-09-22

Family

ID=19036715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011481A Expired - Lifetime EP1270402B1 (fr) 2001-06-29 2002-05-24 Dispositif de propulsion de navire en fuseau

Country Status (9)

Country Link
US (1) US20030000444A1 (fr)
EP (1) EP1270402B1 (fr)
JP (1) JP2003011893A (fr)
KR (1) KR20030003021A (fr)
CN (1) CN1161253C (fr)
AT (1) ATE276920T1 (fr)
DE (1) DE60201295T2 (fr)
ES (1) ES2227359T3 (fr)
NO (1) NO20023130L (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003011889A (ja) * 2001-06-29 2003-01-15 Mitsubishi Heavy Ind Ltd アジマス推進器
ATE254561T1 (de) * 2001-10-05 2003-12-15 Peter Meyer Fahranlage für schiffe, insbesondere für kreuzfahrtschiffe
DE10244295B4 (de) * 2002-09-23 2004-11-04 Siemens Ag Hilfsruder an einem elektrischen Ruderpropeller für schnelle seegehende Schiffe und Betriebsverfahren für das Hilfsruder
SE525349C2 (sv) * 2003-06-23 2005-02-08 Volvo Penta Ab Utombordsdrev för båtar
US20050235895A1 (en) * 2004-04-16 2005-10-27 Donn Furlong Rudder with controllable tab
EP1975060A1 (fr) * 2007-03-30 2008-10-01 Henning Prof. Dr.-Ing. Gold Moteur pour bateau à voile avec gouvernail attaché à son boîtier
NL1037824C2 (en) * 2010-03-23 2011-09-27 Heijden Spijkers Maria Anna Josepha Apparatus and method for the propulsion, steering, manoeuvring and stabilisation of boats and other floating vessels.
JP2012111422A (ja) * 2010-11-26 2012-06-14 Mitsubishi Heavy Ind Ltd アジマス推進器およびこれを備えた船舶
FI125947B (en) 2013-07-05 2016-04-29 Ravintoraisio Oy Serum cholesterol-lowering composition
EP2944560A1 (fr) * 2014-05-14 2015-11-18 ABB Oy Unité de propulsion
NO3051376T3 (fr) * 2015-01-27 2018-05-19
WO2016153095A1 (fr) * 2015-03-26 2016-09-29 삼우중공업 주식회사 Dispositif de propulsion de type conduit pour navire
CN105015753B (zh) * 2015-07-01 2017-08-22 胡景威 一种船舵
USD791678S1 (en) * 2015-08-20 2017-07-11 Abb Schweiz Ag Propulsion unit for ships and boats
JP2017095020A (ja) * 2015-11-27 2017-06-01 三井造船株式会社 船舶、及び船舶の操船方法
CN106741779A (zh) * 2016-12-21 2017-05-31 哈尔滨工程大学 一种仿生吊舱推进器
CN106989902B (zh) * 2017-05-27 2019-03-19 上海船舶运输科学研究所 一种船模操纵性实验系统
CN110789698A (zh) * 2018-08-01 2020-02-14 西门子股份公司 空泡监测系统和吊舱驱动器
JP7148329B2 (ja) * 2018-09-03 2022-10-05 住友重機械マリンエンジニアリング株式会社 舵板、及び船舶

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GB179607A (en) * 1921-02-03 1922-05-03 Samuel Edgar Saunders Improvements relating to the steering and propelling of ships
BE415970A (fr) * 1935-06-25
DE3246369A1 (de) * 1982-12-15 1984-06-20 Georg 6200 Wiesbaden Füreder Brems- und steuersystem fuer wasserfahrzeuge jeglicher groesse und bauart mit oder ohne eigenen antrieb unabhaengig von oder kombiniert mit der ruderanlage
US4487587A (en) * 1982-12-20 1984-12-11 Brunswick Corporation Skeg mounted vane steering system for marine drives
FI96590B (fi) * 1992-09-28 1996-04-15 Kvaerner Masa Yards Oy Laivan propulsiolaite
SE506926C2 (sv) * 1996-06-06 1998-03-02 Kamewa Ab Marint framdrivnings- och styraggregat
ATE280709T1 (de) * 1998-12-21 2004-11-15 Mitsubishi Heavy Ind Ltd Azimut-vortriebsvorichtung und damit ausgerüstetes schiff
US6216624B1 (en) * 1999-03-18 2001-04-17 James F. Page Drag fin braking system

Also Published As

Publication number Publication date
CN1161253C (zh) 2004-08-11
JP2003011893A (ja) 2003-01-15
DE60201295T2 (de) 2005-11-17
NO20023130D0 (no) 2002-06-27
US20030000444A1 (en) 2003-01-02
ES2227359T3 (es) 2005-04-01
DE60201295D1 (de) 2004-10-28
NO20023130L (no) 2002-12-30
CN1393371A (zh) 2003-01-29
EP1270402A1 (fr) 2003-01-02
ATE276920T1 (de) 2004-10-15
KR20030003021A (ko) 2003-01-09

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