CN105764791A - Duct device - Google Patents
Duct device Download PDFInfo
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- CN105764791A CN105764791A CN201480064617.8A CN201480064617A CN105764791A CN 105764791 A CN105764791 A CN 105764791A CN 201480064617 A CN201480064617 A CN 201480064617A CN 105764791 A CN105764791 A CN 105764791A
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- China
- Prior art keywords
- strut
- conduit
- rotating shaft
- propeller
- pipe guide
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Classifications
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- 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
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
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- 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
- B63H1/14—Propellers
- B63H1/28—Other means for improving propeller efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
A duct device is provided by the invention. The duct device (1) comprises a duct (2) disposed in front of a propeller (101), which is provided to the aft on a ship body, at least on a portion in the periphery of the rotational axis of the propeller (101); and a stay (3) which connects the duct with at least a part of the ship body. The cross-section of the duct is in the shape of a wing. The angle formed from the chord line of the wing shape and a line that is parallel to the rotational axis and the distance between the center point of the chord line and the rotational axis are different at a first section of the duct and a second section of the duct which is different from the first section in relation to the circumferential direction of the rotational axis.
Description
Technical field
The present invention relates to the pipe guide of a kind of boats and ships.
Background technology
In the technical field of boats and ships, it is known to a kind of boats and ships, these boats and ships possess such as such as the pipe guide disclosed in patent documentation 1.
Conventional art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2008-137462 publication
The summary of invention
The technical task that invention to solve
Be configured at the stern of hull by pipe guide, boats and ships obtain energy-saving effect.By pipe guide is improved, it is possible to expect higher energy-saving effect.
It is an object of the invention to provide the pipe guide of a kind of boats and ships that can obtain energy-saving effect.
For solving the means of technical task
1st mode of the present invention provides a kind of pipe guide, possesses: conduit, is configured at rotating shaft periphery at least some of of described propeller in the front of the propeller of the stern being arranged at hull；And strut, connect at least some of of described conduit and described hull, the cross section of described conduit is foliaceous, and the described foliated blade string of a musical instrument and the line institute angle degree parallel from described rotating shaft and the central point of the described blade string of a musical instrument and the distance of described rotating shaft are different in the part 2 of the part 1 of described conduit and described conduits different with described part 1 in the circumference of described rotating shaft.
In the pipe guide of the present invention, the top being configured at described rotating shaft at least partially of described conduit, described part 1 includes the upper end of described conduit, described part 2 includes the side end of described conduit, the described angle of described part 1 can more than the described angle of described part 2, and the described distance of described part 1 can less than the distance of described part 2.
In the pipe guide of the present invention, described conduit has leading section, determines inflow entrance；And rearward end, opposed with described propeller, and determine the flow export that size and shape are different from described inflow entrance, described flow export can less than described inflow entrance, the upper end inner surface of described rearward end protrudes to described rotating shaft, and the upper end inner surface of described leading section does not protrude to described rotating shaft.
In the pipe guide of the present invention, the cross section of described strut can be foliaceous.
2nd mode of the present invention provides a kind of pipe guide, possesses: conduit, is configured at rotating shaft periphery at least some of of described propeller in the front of the propeller of the stern being arranged at hull；And strut, connecting at least some of of described conduit and described hull, the cross section of described strut is foliaceous.
In the pipe guide of the present invention, described strut can by the leading edge of the described foliated blade string of a musical instrument be configured at than trailing edge closer to the top in the way of and tilt.
In the pipe guide of the present invention, described strut has: inner end, is connected with described hull；And outer end, relative to the outside being configured at described inner end in the radiation direction of the rotating shaft of described propeller, and be connected with described conduit, the described foliated blade string of a musical instrument and horizontal plane institute angle degree can be different in the 4th part of the third portion of described strut and described struts different with described third portion in described radiation direction.
In the pipe guide of the present invention, the described blade string of a musical instrument of the described inner end of described strut can by described foliated leading edge be configured at than trailing edge closer to the top in the way of and tilt, the described blade string of a musical instrument of the described outer end of described strut can by described foliated leading edge be configured at than trailing edge more on the lower in the way of and tilt.
In the pipe guide of the present invention, described strut includes the 1st strut and the 2nd strut that are configured at the top of the rotating shaft of described propeller, and in the circumference of described rotating shaft, described 1st strut and described 2nd strut institute angle degree can less than 90 degree.
In the pipe guide of the present invention, described conduit can also configure above the rotating shaft of described propeller in the way of surrounding a part for described rotating shaft.
Invention effect
In accordance with the invention it is possible to obtain energy-saving effect.
Accompanying drawing explanation
Fig. 1 is the side view of an example of the pipe guide of the boats and ships showing schematically the 1st embodiment.
Fig. 2 is the front view of an example of the pipe guide of the boats and ships showing schematically the 1st embodiment.
Fig. 3 is the axonometric chart of an example of the pipe guide of the boats and ships showing schematically the 1st embodiment.
Fig. 4 indicates that the sectional view of an example of the conduit of the 1st embodiment.
Fig. 5 indicates that the leading section profile of the conduit of the 1st embodiment and the figure of an example of rearward end profile.
Fig. 6 indicates that the sectional view of an example of the strut of the 1st embodiment.
Fig. 7 is the figure of an example of the pipe guide of the boats and ships showing schematically the 2nd embodiment.
Fig. 8 is the figure of an example of the pipe guide of the boats and ships showing schematically the 3rd embodiment.
Fig. 9 is the figure of an example of the pipe guide of the boats and ships showing schematically the 4th embodiment.
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, embodiments of the present invention are illustrated, but the present invention is not limited to this.Essential condition for the following each embodiment that will illustrate can be properly carried out combination.Further, the constitutive requirements of a part are not sometimes used.
< the 1st embodiment >
1st embodiment is illustrated.Fig. 1 is the side view of an example of the pipe guide 1 of the boats and ships showing schematically present embodiment.Fig. 2 is the front view of an example of the pipe guide 1 of the boats and ships showing schematically present embodiment, is equivalent to the line A-A direction view of Fig. 1.Fig. 3 is the axonometric chart of an example of the pipe guide 1 of the boats and ships showing schematically present embodiment.
As it is shown in figure 1, boats and ships possess: propeller 101, it is arranged at the stern 100B of hull 100；Pipe guide 1, is configured at the front of propeller 101；And rudder for ship 102, it is configured at the rear of propeller 101.Pipe guide 1 is configured at the stern 100B of hull 100.Propeller 101 is connected with the power source being equipped on hull 100 via axle 103.Power source includes at least one as diesel engine in engine and motor.Hull 100 has stern tube 104, and axle 103 is can be supported in stern tube 104 in the way of rotating.Power source makes propeller 101 rotate via axle 103.Propeller 101 pivots about with rotating shaft AX.Propeller 101 rotates, thus ship's navigation.
By the rotation of propeller 101, boats and ships advance to bow side.In the direction of advance of the boats and ships advanced, front is configured with bow, and rear is configured with stern 100B.In the following description, the front in the direction of advance of the boats and ships of advance is suitably referred to as front, the rear in the direction of advance of the boats and ships of advance is suitably referred to as rear.Further, direction orthogonal with direction of advance in horizontal plane is properly termed as width.
Further, in the following description, the direction parallel with rotating shaft AX is properly termed as axially, the radiation direction relative to rotating shaft AX is properly termed as radially, the direction of rotation centered by rotating shaft AX is properly termed as circumference.
Pipe guide 1 possesses: conduit 2, is configured at the front of propeller 101；And strut 3, connect at least some of of conduit 2 and hull 100.Conduit 2 is configured at least some of of the rotating shaft AX periphery of propeller 101 in the front of propeller 101.Furthermore it is possible to conduit 2 is called nozzle 2.Strut 3 is properly termed as pillar 3, it is also possible to be called web 3.In the present embodiment, strut 3 links the stern tube 104 of conduit 2 and hull 100.
In the present embodiment, being arranged at least partially above the rotating shaft AX of propeller 101 of conduit 2.In the present embodiment, conduit 2, above the rotating shaft AX of propeller 101, configures in the way of surrounding a part of rotating shaft AX.That is, conduit 2 is semi-circular cylindrical (semicircular).In the following description, by the rotating shaft AX periphery at propeller 101 at least some of in be properly termed as the inner surface of conduit 2 towards the face of the conduit 2 of rotating shaft AX, the face of the conduit 2 of the opposite side towards conduit 2 inner surface is properly termed as the outer surface of conduit 2.
Conduit 2 has leading section 21 and rearward end 22.Leading section 21 is configured at the front of rearward end 22.Leading section 21 determines the inflow entrance 4 that fluid (sea water etc.) flows into.Rearward end 22 is opposed with propeller 101.Rearward end 22 determines the flow export 5 that fluid flows out.In the present embodiment, the size of inflow entrance 4 and flow export 5 be sized to difference.In the present embodiment, flow export 5 is less than inflow entrance 4.Further, in the present embodiment, the shape of inflow entrance 4 is different with the shape of flow export 5.
As shown in Figures 2 and 3, conduit 2 inner surface in the upper end of rearward end 22 protrudes to rotating shaft AX.That is, conduit 2 inner surface in the upper end of rearward end 22 has the protuberance 22T protruded to the inside.On the other hand, conduit 2 inner surface in the upper end of leading section 21 does not protrude to rotating shaft AX.
The profile of leading section 21 and the profile of rearward end 22 are symmetrical in the horizontal respectively.That is, by rotating shaft AX, symmetrical relative to datum line (axis of symmetry) SR parallel with vertical, the profile of leading section 21 and the profile of rearward end 22 line respectively.
Fig. 4 indicates that the sectional view of an example of the conduit 2 of present embodiment.Fig. 5 indicates that the figure of an example of the profile of leading section 21 and the profile of rearward end 22.Fig. 5 represents the profile of the side relative to axis of symmetry SR.
As shown in Figure 4, the cross section of conduit 2 is foliaceous.The foliaceous of conduit 2 has the profile being effectively obtained lift by the interaction with fluid.The foliaceous (cross sectional shape) of conduit 2 is from the tapered shape in exterior region edge backward.In the present embodiment, the foliated outer surface of conduit 2 is linearly or convexity specific inner surface is little convex or concavity.The foliated inner surface of conduit 2 is in the curved that (rotating shaft AX side) protrudes to the inside.In the foliaceous of conduit 2, foliated leading edge 23 foremost, the trailing edge 24 of foliated rearmost end, the blade string of a musical instrument 25 linking leading edge 23 and trailing edge 24 and the centrage 26 that links foliated upper surface and the central point of lower surface successively and obtain are determined.Leading section 21 includes foliaceous leading edge 23.Rearward end 22 includes foliaceous trailing edge 24.
In the present embodiment, conduit 2 and configures in the way of distance between rotating shaft AX and leading edge 23 diametrically is more than the distance between rotating shaft AX and trailing edge 24.
When boats and ships (sea) on the water advance, at least some of leading edge 23 via conduit 2 of water and flow along the inner surface of conduit 2.According to Bernoulli's theorem, conduit 2 inner surface of leading section 21 becomes negative pressure, and produces lift.Thrust is produced by the axial component (produced by conduit 2 thrust) of lift.Further, owing to being made the output of power source that propeller 101 rotates be suppressed by thrust produced by conduit 2, therefore, it is possible to obtain energy-saving effect.
In the present embodiment, by the foliated blade string of a musical instrument 25 of conduit 2 and be properly termed as with the line institute angle degree φ parallel for rotating shaft AX of propeller 101 configuration angle φ.
Further, in the present embodiment, by the radiation direction relative to the rotating shaft AX of propeller 101, the distance R between the central point 25M and the rotating shaft AX of propeller 101 of the blade string of a musical instrument 25 is properly termed as radial location R.
In the present embodiment, the foliated blade string of a musical instrument 25 and from distance (radial location) R between parallel for rotating shaft AX line institute angle degree (configuration angle) φ and the central point 25M and the rotating shaft AX of propeller 101 of the blade string of a musical instrument 25 of propeller 101 in the part 1 of conduit 2 and the part 2 of conduits 2 different with part 1 in the circumference of rotating shaft AX different.That is, in the present embodiment, the multiple parts configuring the angle φ and radial location R conduit 2 in the circumference of rotating shaft AX are respectively different.
In the present embodiment, the configuration angle φ configuration angle φ more than conduit 2 side end being configured at the positive side of rotating shaft AX of conduit 2 upper end directly over rotating shaft AX it is configured at.In the present embodiment, the shape of conduit 2 is set to, and configuration angle φ tapers into from the upper end (being set to 0deg) of conduit 2 to side end (being set to 90deg) in the circumferential.
Further, in the present embodiment, the radial location R radial location R less than conduit 2 side end being configured at the positive side of rotating shaft AX of conduit 2 upper end directly over rotating shaft AX it is configured at.In the present embodiment, the shape of conduit 2 is set to, and radial location R becomes larger from the upper end (being set to 0deg) of conduit 2 to side end (being set to 90deg) in the circumferential.
More specifically, in the circumferential, in 0deg to 10deg, radial location R is minima, and in 10deg to 90deg, radial location R becomes larger.It addition, when the diameter (external diameter) of propeller 101 is set to Rp, the minima of radial location R can be below 0.7Rp.The maximum of radial location R is set as below Rp.The difference of the minima of radial location R Yu maximum can be set as below 0.5Rp.
In the circumferential, configuring angle φ in 0deg to 10deg is maximum, configures angle φ and taper in 10deg to 90deg.The minima of configuration angle φ is set as more than 0 degree.
Thus, as shown in Figures 2 and 3, rearward end 22 inner surface at conduit 2 has protuberance 22T, can obtain longer semicircular conduit 2 in the horizontal.
The flowing velocity component of the fluid (sea water) of stern 100B (front of propeller 101) is not only present in and is axially also present in circumference and radial direction.Flow field via the fluid of inflow entrance 4 inflow catheter 2 is uneven.Therefore, the configuration angle φ and radial location R of conduit 2 has influence on thrust produced by conduit 2.If configuration angle φ and radial location R that the result of study according to the present inventor is clear that conduit 2 in the circumferential are constant, then cannot obtain the thrust of conduit 2 fully.
Then, in the present embodiment, the shape of conduit 2 being set as, multiple parts of the configuration angle φ and radial location R conduit 2 in the circumference of rotating shaft AX are respectively different.Thereby, it is possible to make thrust produced by conduit 2 maximize, it is possible to obtain bigger energy-saving effect.
Such as, full formed ship has following tendency, relatively big in position (position of the upper end) angle of current of 0deg in circumference, less in position (position of the side end) angle of current of 90deg.Further, there is following tendency, more big at the more little flow velocity of the position radial location R of 0deg in circumference, tendency that the more big flow velocity of position radial location R at 90deg is more big.
Therefore, by making the configuration angle φ configuration angle φ more than the side end of conduit 2 of the upper end of conduit 2, make the radial location R of upper end of conduit 2 less than the radial location R of the side end of conduit 2, and the thrust utilizing the conduit 2 evaluated in below formula (1), formula (2) and formula (3) can be increased.
L=1/2 Cl (α) ρ S V2 ... (1)
D=1/2 Cd (α) ρ S V2 ... (2)
F=L sin θ-D cos θ ... (3)
L: lift
D: resistance
F: thrust (the front component made a concerted effort)
Cl: lift coefficient is (based on Blade Properties.Depend on angle of attack)
Cd: resistance coefficient is (based on Blade Properties.Depend on angle of attack)
ρ: specific gravity
S: catheter surface amasss (based on radial direction position)
V: the flow velocity synthesis flow velocity of radial direction (axially and)
θ: the angle of current (axial flow velocity and radial direction flow velocity institute angle degree)
Then, strut 3 is illustrated.As shown in Figure 1, Figure 2 and shown in Fig. 3 etc., strut 3 has leading section 31 and rearward end 32.Leading section 31 is configured at the front of rearward end 32.Rearward end 32 is opposed with propeller 101.
Strut 3 connects the stern tube 104 of conduit 2 and hull 100.Strut 3 has: inner end 38, is connected with the outer surface of stern tube 104；And outer end 39, it is connected with the inner surface of conduit 2.Outer end 39 is configured at the outside of inner end 38 in the radiation direction relative to the rotating shaft AX of propeller 101.
Pipe guide 1 has a pair strut 3.In the following description, one of them strut 3 is properly termed as the 1st strut 301, another strut 3 is properly termed as the 2nd strut 302.1st strut 301 is configured at the side of rotating shaft AX in the horizontal.2nd strut 302 is configured at the opposite side of rotating shaft AX in the horizontal.In the present embodiment, the 1st strut 301 and the 2nd strut 302 actually by with plane-parallel in the way of and configure.
Fig. 6 illustrates the sectional view of the strut 3 of present embodiment.As shown in Figure 6, the cross section of strut 3 is foliaceous.The foliaceous of strut 3 has the profile being effectively obtained lift by the interaction with fluid.The foliaceous (cross sectional shape) of strut 3 is from the tapered shape in exterior region edge backward.In the present embodiment, the foliated upper surface of strut 3 is linearly or convexity is less than the convex of inner surface or concavity.The foliated lower surface of strut 3 is in the curved protruded to downside.In the foliaceous of strut 3, foliated leading edge 33 foremost, the trailing edge 34 of foliated rearmost end, the blade string of a musical instrument 35 linking leading edge 33 and trailing edge 34 and the centrage 36 that links the central point of foliated upper and lower surface successively and obtain are set.Leading section 31 includes foliated leading edge 33.Rearward end 32 includes foliaceous trailing edge 34.
In the present embodiment, strut 3 configures in the way of the inclination of the foliated blade string of a musical instrument 35.In the present embodiment, strut 3 by the leading edge 33 of the foliated blade string of a musical instrument 35 be configured at more closer to the top than trailing edge 34 in the way of and tilt.
Strut 3 can configure in the way of the blade string of a musical instrument 35 is inclined relative to horizontal.Strut 3 can also configure in the way of the blade string of a musical instrument 35 is relative to water line inclination.Water line includes at least one of plan water line and designed draft line.Strut 3 can with in the decision face including rotating shaft AX, mode that leading edge 33 configures further from decision face than trailing edge 34 and tilt.Decision face including rotating shaft AX is horizontal plane sometimes, sometimes the inclined plane for being inclined relative to horizontal.
In the present embodiment, leading edge 33 is configured at the top of trailing edge 34, and strut 3 configures in the way of horizontal plane becomes more than 0 degree and less than 10 degree with 35 angle degree γ of the blade string of a musical instrument.
When boats and ships (sea) on the water advance, at least some of leading edge 33 via strut 3 of water and flow along the inner surface of strut 3.According to Bernoulli's theorem, the lower surface of the strut 3 of leading section 31 becomes negative pressure, and produces lift.By the thrust of the axial component (produced by strut 3 thrust) of lift and propeller 101, and produce bigger thrust.Further, owing to being made the output of power source that propeller 101 rotates be suppressed by thrust produced by strut 3, therefore, it is possible to obtain energy-saving effect.
As described above, according to present embodiment, owing to conduit 2 is formed to configure angle φ and radial location R multiple parts in the circumferential for different modes, therefore, it is possible to obtain energy-saving effect.
Further, in the present embodiment, owing to the cross section of strut 3 is foliaceous, therefore not only conduit 2, strut 3 also produces thrust.Thereby, it is possible to obtain higher energy-saving effect.
Further, in the present embodiment, the outer end 39 of strut 3 is connected with Semicircular conduit 2.Thereby, it is possible to suppress blade tip impaired.When the outer end 39 of strut 3 and conduit 2 are for being connected, at least one in the end of the end of strut 3 and conduit 2 produces eddy current, and it is as a result, it is possible to energy-saving effect cannot be given full play to.In the present embodiment, owing to strut 3 and conduit 2 connect, therefore the generation of eddy current is inhibited.Thereby, it is possible to obtain higher energy-saving effect.
< the 2nd embodiment >
2nd embodiment is illustrated.In the following description, constitute, to identical or equal with above-mentioned embodiment, the symbol that part is additional identical, and simple or the description thereof will be omitted.
Fig. 7 represents an example of the strut 3B of the pipe guide 1B of present embodiment.The cross section of strut 3B is foliaceous.In the present embodiment, strut 3B is the symmetrical blading that foliated upper surface shape is symmetrical with underside shape.It addition, strut 3B can also be foliated upper surface shape is asymmetrical asymmetric blade with underside shape.
Strut 3B has: inner end 38, is connected with hull 100；And outer end 39, the radiation direction relative to the rotating shaft AX of propeller 100 is configured at the outside of inner end 38, and is connected with conduit 2.
In the present embodiment, the foliated blade string of a musical instrument 35 of strut 3B is respectively different with multiple parts of horizontal plane institute angle degree γ strut 3B in radiation direction.In the present embodiment, the angle γ of the foliated blade string of a musical instrument 35 of the strut 3B of inner end 38 is different with the angle γ of the foliated blade string of a musical instrument 35 of the strut 3B of outer end 39.Strut 3B reverses in the way of its angle γ changes gradually from the outside end 39 of inner end 38.
In the present embodiment, the blade string of a musical instrument 35 of the inner end 38 of strut 3B by foliated leading edge 33 be configured at more closer to the top than trailing edge 34 in the way of and tilt, the blade string of a musical instrument 39 of the outer end 39 of strut 3B by foliated leading edge 33 be configured at than trailing edge 34 more on the lower in the way of and tilt.
The flow field of the fluid of conduit 2 and strut 3B periphery is different in the radiation direction relative to the rotating shaft AX of propeller 101.Such as, the inner side in radiation direction, fluid (sea water) likely flows down, the outside in radiation direction, and fluid (sea water) likely flows down.Therefore, the angle of inclination γ of strut 3B affects thrust produced by strut 3B.Result of study according to the present inventor is clear that angle (angle of inclination of the strut 3B) γ of the blade string of a musical instrument 35 making strut 3B in radiation direction changes in radiation direction, it is possible to improve further the thrust of strut 3B.
Then, in the present embodiment, the shape of strut 3B is set as, and multiple parts of angle of inclination γ strut 3B in the radiation direction relative to rotating shaft AX are respectively different.Thereby, it is possible to make thrust produced by strut 3B maximize, and bigger energy-saving effect can be obtained.
Therefore, by adjusting the angle of inclination γ of strut 3B, it is possible to increase the thrust of the strut 3B utilizing below formula (4), formula (5) and formula (6) to evaluate.
L=1/2 Cl (α) ρ S V2 ... (4)
D=1/2 Cd (α) ρ S V2 ... (5)
F=L sin θ-D cos θ ... (6)
L: lift
D: resistance
F: thrust (the front component made a concerted effort)
Cl: lift coefficient is (based on Blade Properties.Depend on angle of attack)
Cd: resistance coefficient is (based on Blade Properties.Depend on angle of attack)
ρ: specific gravity
S: strut surfaces is amassed
V: flow velocity (direction of crosscut strut and the synthesis flow velocity of main flow direction)
θ: the angle of current (the direction flow velocity of crosscut strut and main flow direction flow velocity institute angle degree)
< the 3rd embodiment >
3rd embodiment is illustrated.In the following description, identical or equal with above-mentioned embodiment constitute the symbol that part is additional identical, and simple or the description thereof will be omitted.
Fig. 8 represents an example of the pipe guide 1C of present embodiment.In fig. 8, strut 3 includes the 1st strut the 301 and the 2nd strut 302 that is configured at the top of the rotating shaft AX of propeller 101.In the circumference of rotating shaft AX, the 1st strut the 301 and the 2nd 302 angle degree of strut are less than 90 degree.In the present embodiment, the outer end 39 being connected with conduit 2 is configured at the top of the inner end 38 being connected with hull 100.In the present embodiment, it is also possible to obtain energy-saving effect.
< the 4th embodiment >
4th embodiment is illustrated.In the following description, identical or equal with above-mentioned embodiment constitute the symbol that part is additional identical, and simple or the description thereof will be omitted.
Fig. 9 represents an example of the pipe guide 1D of present embodiment.As it is shown in figure 9, pipe guide 1D has conduit 2D and connects at least one of strut 3D of conduit 2D and hull 100.The connecting portion surface of conduit 2D and strut 3D includes curved surface.That is, in the present embodiment, in the conduit 2D connecting portion with strut 3D, it is not provided with corner.
According to present embodiment, it is possible to greatly reduce vane end faces impaired.Thrust produced by the also subsidiary conduit 2D of thrust produced by strut 3D in the present embodiment.
Symbol description
1-pipe guide, 2-conduit, 3-strut, 4-inflow entrance, 5-flow export, 21-leading section, 22-rearward end, 22T-protuberance, 23-leading edge, 24-trailing edge, the 25-blade string of a musical instrument, 31-leading section, 32-rearward end, 33-leading edge, 34-trailing edge, the 35-blade string of a musical instrument, 38-inner end, 39-outer end, 100-hull, 101-propeller, AX-rotating shaft.
Claims (10)
1. a pipe guide, possesses:
Conduit, is configured at rotating shaft periphery at least some of of described propeller in the front of the propeller of the stern being arranged at hull, and
Strut, connects at least some of of described conduit and described hull,
The cross section of described conduit is foliaceous,
The described foliated blade string of a musical instrument and the line institute angle degree parallel from described rotating shaft and the central point of the described blade string of a musical instrument and the distance of described rotating shaft are different in the part 2 of the part 1 of described conduit and described conduits different with described part 1 in the circumference of described rotating shaft.
2. pipe guide according to claim 1, wherein,
The top being configured at described rotating shaft at least partially of described conduit,
Described part 1 includes the upper end of described conduit,
Described part 2 includes the side end of described conduit,
The described angle of described part 1 more than the described angle of described part 2,
The described distance of described part 1 is less than the distance of described part 2.
3. pipe guide according to claim 2, wherein,
Described conduit has: leading section, determines inflow entrance；And rearward end, opposed with described propeller, and determine the flow export that size and shape are different from described inflow entrance,
Described flow export less than described inflow entrance,
The upper end inner surface of described rearward end protrudes to described rotating shaft,
The upper end inner surface of described leading section does not protrude to described rotating shaft.
4. the pipe guide according to any one of claims 1 to 3, wherein,
The cross section of described strut is foliaceous.
5. a pipe guide, possesses:
Conduit, is configured at rotating shaft periphery at least some of of described propeller in the front of the propeller of the stern being arranged at hull；And
Strut, connects at least some of of described conduit and described hull,
The cross section of described strut is foliaceous.
6. the pipe guide according to claim 4 or 5, wherein,
Described strut by described foliated blade string of a musical instrument leading edge be configured at than trailing edge closer to the top in the way of and tilt.
7. the pipe guide according to claim 4 or 5, wherein,
Described strut has: inner end, is connected with described hull；And outer end, relative to the outside being configured at described inner end in the radiation direction of the rotating shaft of described propeller, and it is connected with described conduit,
The described foliated blade string of a musical instrument and horizontal plane institute angle degree are different in the 4th part of the third portion of described strut and described struts different with described third portion in described radiation direction.
8. pipe guide according to claim 7, wherein,
The described blade string of a musical instrument in the described inner end of described strut by described foliated leading edge be configured at than trailing edge closer to the top in the way of and tilt,
The described blade string of a musical instrument in the described outer end of described strut by described foliated leading edge be configured at than trailing edge more on the lower in the way of and tilt.
9. the pipe guide according to any one of claim 1～8, wherein,
Described strut includes being configured at the 1st strut above the rotating shaft of described propeller and the 2nd strut,
In the circumference of described rotating shaft, described 1st strut and described 2nd strut institute angle degree are less than 90 degree.
10. the pipe guide according to any one of claim 1～9, wherein,
Described conduit configures above the rotating shaft of described propeller in the way of surrounding a part for described rotating shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-273249 | 2013-12-27 | ||
| JP2013273249A JP6138680B2 (en) | 2013-12-27 | 2013-12-27 | Duct equipment |
| PCT/JP2014/083465 WO2015098665A1 (en) | 2013-12-27 | 2014-12-17 | Duct device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105764791A true CN105764791A (en) | 2016-07-13 |
| CN105764791B CN105764791B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480064617.8A Active CN105764791B (en) | 2013-12-27 | 2014-12-17 | Pipe guide |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6138680B2 (en) |
| KR (1) | KR101780910B1 (en) |
| CN (1) | CN105764791B (en) |
| WO (1) | WO2015098665A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018024368A (en) * | 2016-08-12 | 2018-02-15 | 三井造船株式会社 | Vessel |
| CN109606596A (en) * | 2018-11-29 | 2019-04-12 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Energy saving half guide wheel before a kind of paddle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6241905B2 (en) * | 2015-08-31 | 2017-12-06 | 国立研究開発法人 海上・港湾・航空技術研究所 | Stern shape with stern duct and ship |
| CN115056951B (en) * | 2022-05-23 | 2024-03-22 | 中国船舶工业集团公司第七0八研究所 | Hyperbolic rectifying wing for ship |
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| JP2002220089A (en) * | 2001-01-23 | 2002-08-06 | Hitachi Zosen Corp | Duct for improvement in propulsive efficiency of ship |
| KR20110050736A (en) * | 2008-12-24 | 2011-05-16 | 스미도모쥬기가이 마린 엔지니어링 가부시키가이샤 | Duct for ship and ship |
| KR20110083998A (en) * | 2010-01-15 | 2011-07-21 | 대우조선해양 주식회사 | Duct for ship |
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| KR20130031552A (en) * | 2011-09-21 | 2013-03-29 | 삼성중공업 주식회사 | A ship having rotating duct |
| JP2013132924A (en) * | 2011-12-26 | 2013-07-08 | Mitsubishi Heavy Ind Ltd | Reaction fin, and vessel provided with the same |
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| JP4079742B2 (en) * | 2002-10-10 | 2008-04-23 | ユニバーサル造船株式会社 | Duct bodies in ships |
| JP5132140B2 (en) | 2006-11-30 | 2013-01-30 | 株式会社アイ・エイチ・アイ マリンユナイテッド | Ship duct equipment |
| JP4939269B2 (en) * | 2007-03-28 | 2012-05-23 | 三井造船株式会社 | Stern horizontal duct and ship |
| JP4717857B2 (en) * | 2007-06-14 | 2011-07-06 | 住友重機械マリンエンジニアリング株式会社 | Ship duct and ship |
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2013
- 2013-12-27 JP JP2013273249A patent/JP6138680B2/en active Active
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2014
- 2014-12-17 CN CN201480064617.8A patent/CN105764791B/en active Active
- 2014-12-17 WO PCT/JP2014/083465 patent/WO2015098665A1/en active Application Filing
- 2014-12-17 KR KR1020167013903A patent/KR101780910B1/en active IP Right Grant
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002220089A (en) * | 2001-01-23 | 2002-08-06 | Hitachi Zosen Corp | Duct for improvement in propulsive efficiency of ship |
| KR20110050736A (en) * | 2008-12-24 | 2011-05-16 | 스미도모쥬기가이 마린 엔지니어링 가부시키가이샤 | Duct for ship and ship |
| KR20110083998A (en) * | 2010-01-15 | 2011-07-21 | 대우조선해양 주식회사 | Duct for ship |
| JP2011178222A (en) * | 2010-02-26 | 2011-09-15 | Ihi Corp | Ship |
| KR20130031552A (en) * | 2011-09-21 | 2013-03-29 | 삼성중공업 주식회사 | A ship having rotating duct |
| JP2013132924A (en) * | 2011-12-26 | 2013-07-08 | Mitsubishi Heavy Ind Ltd | Reaction fin, and vessel provided with the same |
| KR20130125628A (en) * | 2012-05-09 | 2013-11-19 | 에스티엑스조선해양 주식회사 | Appendage of fan shape duct for improving stern flow of ship |
| KR20120007854U (en) * | 2012-10-19 | 2012-11-14 | 대우조선해양 주식회사 | 3 install structure of asymmetry type propellor duct having 3 supporting points |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2018024368A (en) * | 2016-08-12 | 2018-02-15 | 三井造船株式会社 | Vessel |
| CN109606596A (en) * | 2018-11-29 | 2019-04-12 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Energy saving half guide wheel before a kind of paddle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101780910B1 (en) | 2017-09-21 |
| JP2015127179A (en) | 2015-07-09 |
| KR20160075729A (en) | 2016-06-29 |
| JP6138680B2 (en) | 2017-05-31 |
| WO2015098665A1 (en) | 2015-07-02 |
| CN105764791B (en) | 2017-11-03 |
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Effective date of registration: 20181030 Address after: Kanagawa Patentee after: MITSUBISHI Shipbuilding Corporation Address before: Tokyo, Japan, Japan Patentee before: Mit-subishi Heavy Industries Ltd. |