WO2017150299A1 - Horizontal axis rotor and boat equipped with said rotor - Google Patents

Horizontal axis rotor and boat equipped with said rotor Download PDF

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Publication number
WO2017150299A1
WO2017150299A1 PCT/JP2017/006592 JP2017006592W WO2017150299A1 WO 2017150299 A1 WO2017150299 A1 WO 2017150299A1 JP 2017006592 W JP2017006592 W JP 2017006592W WO 2017150299 A1 WO2017150299 A1 WO 2017150299A1
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Prior art keywords
blade
rotor
horizontal axis
chord
axis rotor
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PCT/JP2017/006592
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French (fr)
Japanese (ja)
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鈴木 政彦
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株式会社ベルシオン
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Priority to JP2016038817A priority Critical patent/JP2017154576A/en
Priority to JP2016-038817 priority
Application filed by 株式会社ベルシオン filed Critical 株式会社ベルシオン
Publication of WO2017150299A1 publication Critical patent/WO2017150299A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H7/00Propulsion directly actuated on air
    • B63H7/02Propulsion directly actuated on air using propellers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H1/00Propulsive elements directly acting on water
    • B63H1/02Propulsive elements directly acting on water of rotary type
    • B63H1/12Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14Propellers
    • B63H1/26Blades

Abstract

The purpose of the present invention is to provide a horizontal axis rotor in which, rather than a fluid being pushed out by blades, a high-speed flow associated with a Coandă effect resulting from the rotation of the blades flows toward the back face and a propulsive force is obtained as the counteraction, such that the horizontal axis rotor has a high rotational efficiency at a low power. A lift-type blade 1 is configured such that the front face 3D in the flow-receiving direction is a bulging face having the shape of a large arc in the chord direction and the back face 3E in the flow-releasing direction is smaller than the bulge of the front face 3D, such that a high-speed flow passing from the trailing edge 3G part in the back face 3E direction along the chord direction of the front face during rotation acts as a propulsive force.

Description

横軸ロータ並びにそのロータを備えた舟艇Horizontal axis rotor and boat equipped with the rotor
 本発明は、横軸ロータ並びにそのロータを備えた舟艇に係り、特に揚力型ブレードの受流面を大きく膨出させ、かつ翼端を受流面方向へ傾斜させた横軸ロータとそのロータを備えた舟艇に関する。 The present invention relates to a horizontal axis rotor and a boat equipped with the rotor, and more particularly to a horizontal axis rotor in which a receiving surface of a lift-type blade is greatly bulged and a blade tip is inclined in the direction of the receiving surface. It relates to the provided boats.
 翼端を受流方向に傾斜させたブレードは、例えば特許文献1に記載されている。 A blade whose blade tip is inclined in the receiving direction is described in Patent Document 1, for example.
特開2007-125914号公報JP 2007-125914 A
 前記、特許文献1に記載のようなロータブレードでは、例えば船舶の推進機に使用すると、水をブレードの力で押出すので、水の抵抗に勝つための動力の大なトルクを必要とする。
 本発明は、ブレードで流体を押し出すのではなく、ブレードを回転させることによって、ブレードの周面に沿って移動する流体が、ブレードの形状によって自然に生じるコアンダ効果による高速流のもたらす水圧の差により、推進流を生じさせるロータを提供することを目的としている。
In the rotor blade as described in Patent Document 1, for example, when used in a marine propulsion device, water is pushed out by the force of the blade, so that a large torque of power is required to overcome the resistance of water.
The present invention is based on the difference in water pressure caused by the high-speed flow caused by the Coanda effect that naturally occurs due to the shape of the blade, because the fluid moving along the peripheral surface of the blade is rotated by rotating the blade instead of pushing the fluid by the blade The object is to provide a rotor that produces a propulsion flow.
 本発明の具体的な内容は、次の通りである。 The specific contents of the present invention are as follows.
(1)揚力型ブレードにおいて、受流方向の正面を、弦方向で大きな弧状の膨出面とし、放流方向の背面を正面の膨出より小として、回転時に正面の弦方向に沿って後縁部から背面方向に通過するコアンダ効果による高速流を推進力となるようになっている横軸ロータ。 (1) In the lift type blade, the front side in the receiving direction is a large arc-shaped bulging surface in the chord direction, and the back surface in the discharge direction is smaller than the bulging in the front direction, and the trailing edge along the front chord direction when rotating A horizontal axis rotor that is driven by a high-speed flow due to the Coanda effect that passes in the rear direction.
(2)前記揚力型ブレードは、翼根部における放流方向の背面が、弦方向で直線状かつ回転方向へ平行で、翼根部から最大弦長部へかけて、背面は後縁部から前縁部へかけて正面方向へ次第に大きく傾斜される前記(1)に記載の横軸ロータ。 (2) In the lift type blade, the back surface in the discharge direction at the blade root portion is linear in the chord direction and parallel to the rotation direction, from the blade root portion to the maximum chord length portion, and the back surface from the rear edge portion to the front edge portion The horizontal axis rotor according to (1), wherein the rotor is gradually inclined in a front direction toward the front.
(3)前記揚力型ブレードは、側面視で、翼根部から翼端部へかけて次第に厚さを薄くし、かつ正面は、翼根部から翼端部へかけて、背面方向へ次第に傾斜している前記(1)または(2)に記載の横軸ロータ。 (3) The lift-type blade gradually decreases in thickness from the blade root to the blade tip in a side view, and the front surface gradually inclines toward the back surface from the blade root to the blade tip. The horizontal axis rotor according to (1) or (2).
(4)前記(1)~(3)に記載の横軸ロータを、舟艇に配設されたロータ筐体のロータ軸に、ブレードの傾斜部の先端を船首方向に向けて装着する横軸ロータを備えた舟艇。 (4) A horizontal axis rotor in which the horizontal axis rotor described in (1) to (3) is mounted on the rotor shaft of a rotor casing disposed in a boat with the tip of the inclined portion of the blade facing the bow direction. A boat equipped with
本発明によると、次のような効果が奏せられる。 According to the present invention, the following effects can be obtained.
 前記(1)に記載の発明は、背面は平坦で、正面は翼断面状に膨出しているので、回転に伴い、ロータ軸方向にある正面に、コアンダ効果による高速流が生じ、弦方向の後縁から、背面方向へ通過し、反作用としてロータ軸方向へ推力が生じる。
 回転に伴い、正面に沿う流体は傾斜部方向に集合し、傾斜部における正面の膨出面に生じるコアンダ効果により、更に高速となって、背面方向へ通過し、反作用として、ロータ軸方向への推力となる。
In the invention described in (1), since the back surface is flat and the front surface bulges in the shape of a blade, a high-speed flow due to the Coanda effect is generated on the front surface in the rotor axial direction along with the rotation. From the trailing edge, it passes in the back direction, and thrust is generated in the rotor axial direction as a reaction.
Along with the rotation, the fluid along the front surface gathers in the direction of the inclined portion, and due to the Coanda effect generated on the front bulging surface in the inclined portion, the fluid becomes higher speed and passes in the rear direction, and as a reaction, thrust in the rotor axial direction It becomes.
 前記(2)に記載の発明は、揚力型ブレードの翼根部における背面が、弦方向で直線状で、迎角ゼロの翼根部から最大弦長部にかけて、迎角を次第に大となっているので、翼端部分で流体を押しやって推力とするが、押しやる流体量よりも正面に沿って高速で流動する量が大なので動力を小とすることができる。 In the invention described in (2), the back surface of the blade root portion of the lift-type blade is linear in the chord direction, and the angle of attack gradually increases from the blade root portion having a zero angle of attack to the maximum chord length portion. The thrust is generated by pushing the fluid at the blade tip, but the amount of fluid flowing at high speed along the front surface is larger than the amount of fluid pushed, so that the power can be reduced.
 前記(3)に記載の発明の揚力型ブレードは、側面視で、翼根部から翼端部へかけて次第に厚さを薄くし、かつ正面は、翼根部から翼端部へかけて、背面方向へ次第に傾斜しているので、回転時の抵抗は小さく、正面に沿う流体は、翼端方向へ移動しやすく、翼端の傾斜部に集合する流体は、コアンダ効果により高速となって、後縁から背面方向へ流動して、反作用として推進力を生む。 The lift type blade of the invention described in (3) has a thickness that gradually decreases from the blade root portion to the blade tip portion in a side view, and the front surface extends from the blade root portion to the blade tip portion in the back direction. Since the slope is gradually inclined, the resistance during rotation is small, the fluid along the front is easy to move in the direction of the wing tip, and the fluid gathering at the inclined portion of the wing tip becomes high speed due to the Coanda effect, and the trailing edge It flows from the back to the back and produces a driving force as a reaction.
 前記(4)に記載の発明は、舟艇に配設されたロータ筐体のロータ軸に、ブレードの傾斜部の先端を船首方向に向けたロータを装着するので、ロータが回転するとブレードの受流面である正面を弦方向にコアンダ効果で移動する高速流は、後縁から放流方向である背面に抜けて、反作用として推進力となる。 In the invention described in (4) above, since the rotor with the tip of the inclined portion of the blade directed in the bow direction is attached to the rotor shaft of the rotor casing disposed in the boat, The high-speed flow that moves in the chord direction in the chord direction on the front surface is escaped from the rear edge to the back surface in the discharge direction, and becomes a driving force as a reaction.
本発明の横軸ロータの一実施形態の正面図である。It is a front view of one embodiment of a horizontal axis rotor of the present invention. 図1における1個のブレードの後縁側から見た側面図である。It is the side view seen from the rear edge side of one blade in FIG. 図1における1個のブレードの平面図である。FIG. 2 is a plan view of one blade in FIG. 1. 図1におけるE-E線横断平面図である。FIG. 2 is a cross-sectional plan view taken along the line EE in FIG. 図1におけるD-D線横断平面図である。FIG. 2 is a cross-sectional plan view taken along the line DD in FIG. 1. 図1におけるC-C線横断平面図である。FIG. 2 is a cross-sectional plan view taken along the line CC in FIG. 1. 図1におけるB-B線横断平面図である。FIG. 2 is a cross-sectional plan view taken along the line BB in FIG. 1. 図1におけるA-A線横断平面図である。FIG. 2 is a cross-sectional plan view taken along line AA in FIG. 1. 本発明の横軸ロータを備えた舟艇の側面図である。It is a side view of a boat provided with a horizontal axis rotor of the present invention. 図9における横軸ロータの一部破断面を示す側面図である。FIG. 10 is a side view showing a partially broken section of the horizontal axis rotor in FIG. 9.
 以下本発明の1実施形態を、図面を参照して説明する。
 図1は本発明の横軸ロータ(以下単にロータという)の上流側(受流側)となる正面図で、この正面3Dは、例えば船舶の船尾と対面し、飛行機では気流を受ける受流面となる。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view on the upstream side (reception side) of a horizontal axis rotor (hereinafter simply referred to as a rotor) of the present invention. This front surface 3D faces, for example, the stern of a ship and receives airflow in an airplane. It becomes.
 ロータ1は、ハブ2の周面に複数(図では5枚)の揚力型ブレード(以下単にブレードという)3、3が配設されている。
 ブレード3は、翼根部3Aから翼端部へかけて次第に弦長を大として、最大弦長部3Bは、回転半径の45~50%と広く設定されている。
In the rotor 1, a plurality (five in the figure) lift type blades (hereinafter simply referred to as blades) 3 and 3 are disposed on the peripheral surface of the hub 2.
The blade 3 gradually increases in chord length from the blade root portion 3A to the blade tip portion, and the maximum chord length portion 3B is widely set to 45 to 50% of the rotation radius.
 ブレード3の側面形は、図2に示すように、翼根部3Aから翼端部へかけて次第に厚みを薄くし、上流側の正面3Dは、翼根部3Aから翼端部へかけて次第に下流方向(放流側)へ傾斜している。 As shown in FIG. 2, the side surface shape of the blade 3 gradually decreases in thickness from the blade root portion 3A to the blade tip portion, and the upstream front surface 3D gradually decreases in the downstream direction from the blade root portion 3A to the blade tip portion. Inclined to the discharge side.
 最大弦長部3Bより先端は傾斜部3Cとされ、図2に示すように、上流側(受流側)へ30~45度の角度で傾斜している。
 また平面は、図3に示すように、背面3Eの最大弦長部3Bを基点として、直交方向(X矢示)へ傾斜している。
The tip of the maximum chord length portion 3B is an inclined portion 3C, which is inclined at an angle of 30 to 45 degrees toward the upstream side (receiving side) as shown in FIG.
As shown in FIG. 3, the plane is inclined in the orthogonal direction (indicated by an arrow X) with the maximum chord length portion 3B of the back surface 3E as a base point.
 ブレード3の下流側となる背面3Eは、平坦面とされ、図3~図8に示すように、翼根部3Aでは回転方向に対して迎角ゼロで、翼端部へかけて次第に迎角を付けてある。 The back surface 3E on the downstream side of the blade 3 is a flat surface. As shown in FIGS. 3 to 8, the blade root portion 3A has an angle of attack of zero with respect to the rotation direction, and gradually increases the angle of attack toward the blade tip. It is attached.
 上流側となる正面3Dは、図4~図8に示すように、弦の中央部分が上流側(図のロータ軸方向)へ膨出している。この膨出の度合いは、例えば先端付近では弦長の15%程度でもよいが、最大で弦長の30%まで厚くしてもかまわない。 In the front 3D on the upstream side, as shown in FIGS. 4 to 8, the central portion of the string bulges upstream (in the direction of the rotor axis in the figure). The degree of bulging may be, for example, about 15% of the chord length near the tip, but it may be thicker up to 30% of the chord length.
 図4における翼根部3Aでは、ブレード3の強度の点で、弦長に対する厚さは図面の上では約66%であるが、それより厚くてもかまわない。
 翼端部にかけて、厚さは次第に薄くなっている。図7における最大弦長部3Bの部分では、厚さは弦長の約17%と薄くなり、傾斜部3Cへかけて更に薄くなっている。
In the blade root portion 3A in FIG. 4, the thickness with respect to the chord length is about 66% on the drawing in terms of strength of the blade 3, but it may be thicker than that.
The thickness gradually decreases toward the wing tip. In the portion of the maximum chord length portion 3B in FIG. 7, the thickness is as thin as about 17% of the chord length, and is further reduced toward the inclined portion 3C.
 ブレード3が回転すると、膨みの大な正面3Dを、弦方向へ通過する流体は、コアンダ効果により高速となって通過する。これは膨らみのない背面3Eを通過する流体の速度よりも早くなり、流速が周囲よりも早い流体は、その密度が粗くなり、周囲よりも圧力が低下する。 When the blade 3 rotates, the fluid passing through the swollen front 3D in the string direction passes at a high speed due to the Coanda effect. This is faster than the velocity of the fluid passing through the back surface 3E without swelling, and the fluid whose flow velocity is faster than the surroundings becomes coarser in density and lower in pressure than the surroundings.
 圧力が低下した流体には、周囲から常圧の流体が集合して、結果として流体圧が高まり、翼端部方向へと移動し、傾斜部3Cに集合して当り、傾斜部3Cにおける膨らみのある正面3Dを、弦の後縁3G方向へ通過し、反作用として推進力となる。 The fluid whose pressure has been reduced gathers normal pressure fluid from the surroundings, and as a result, the fluid pressure increases, moves toward the blade tip, gathers and strikes the inclined portion 3C, and bulges in the inclined portion 3C occur. A certain front 3D passes in the direction of the trailing edge 3G of the string, and becomes a driving force as a reaction.
 図5において、正面3Dを後縁部3G方向へ抜ける流体は、D矢示方向へ流れ込むが、背面3Eは回転方向に対して迎角がほとんどないので、背面3Eに沿って流れる流体は、最大弦長に近い部分において、押された流体が推力となる。 In FIG. 5, the fluid that passes through the front surface 3D in the direction of the trailing edge 3G flows in the direction indicated by the arrow D, but the back surface 3E has almost no angle of attack with respect to the rotation direction. In the portion close to the chord length, the pushed fluid becomes a thrust.
 図6において、正面3Dの弦方向に沿って、後縁3G方向へ流れる流体は、C矢示方向へ流れ込む。背面3Eによって押出される流体は、c矢示方向へ押出されるが、その量は正面3Dに沿う水量の比ではない。 In FIG. 6, the fluid flowing in the direction of the trailing edge 3G along the chord direction of the front surface 3D flows in the direction indicated by the arrow C. The fluid extruded by the back surface 3E is extruded in the direction indicated by the arrow c, but the amount is not a ratio of the amount of water along the front surface 3D.
 図7において、最大弦長部3Bの正面3Dに沿う流体は、B矢示方向へ高速で流動する。このB矢示方向は、図6のC矢示方向よりも、ロータ1の軸心線Sから離れる方向へ開いている。これは、その反作用として、ブレード3を回転方向へ回転させる作用がある。 7, the fluid along the front surface 3D of the maximum chord length 3B flows at high speed in the direction indicated by the arrow B. The direction indicated by the arrow B is more open in the direction away from the axis S of the rotor 1 than the direction indicated by the arrow C in FIG. This has the effect of rotating the blade 3 in the rotational direction as a counteraction.
 図8は、傾斜部3Cにおける横断面を示す。図8において傾斜部3Cは、正面3Dの前方向(ロータ軸方向)に傾斜している。その正面3Dは図示のように、大きく膨らみを持っているので、回転に伴い、傾斜部3Cの正面3Dで弦方向に沿って後縁3Gから背面3E方向へ、コアンダ効果により高速で通過する流体は、A矢示方向へ通過し、反作用として推進力となる。 FIG. 8 shows a cross section of the inclined portion 3C. In FIG. 8, the inclined portion 3C is inclined in the front direction (rotor axial direction) of the front surface 3D. Since the front surface 3D has a large bulge as shown in the figure, the fluid passes at high speed by the Coanda effect from the trailing edge 3G to the rear surface 3E along the chord direction on the front surface 3D of the inclined portion 3C with rotation. Passes in the direction indicated by the arrow A, and becomes a driving force as a reaction.
 この最大弦長部3Bに集合する一定時間内の流体の量は、回転に伴い遠心力その他、流体圧の変化によって、翼根部3A方向から寄り集まってくる流体なので、相当大な反作用、すなわち、ロータ1の回転速度を高め、かつロータ軸4方向へ大な推力をもたらす。 The amount of fluid that gathers in the maximum chord length portion 3B within a certain time is a fluid that gathers from the direction of the blade root portion 3A due to centrifugal force and other changes in fluid pressure as it rotates, so a considerable reaction, that is, The rotational speed of the rotor 1 is increased, and a large thrust is generated in the direction of the rotor shaft 4.
 この図4~図8で明らかなように、このロータ1が船舶の水中の推進機に使用されるとき、従来のスクリュのように、ブレード3で水を押し出すということでないので、水の抵抗に対する力による押しのけという作用は生じない。 As apparent from FIGS. 4 to 8, when this rotor 1 is used in a submerged propulsion device of a ship, it does not push out water with the blade 3 as in the conventional screw, so There is no effect of pushing away by force.
 すなわち、ブレード3は、図2に示すように、翼根部3Aよりも翼端部の厚さが薄いので、回転抵抗は大とならない。ブレード3の回転時において、翼根部3Aでは、回転周速が小なので、前縁3Fの厚さが厚くても抵抗になりにくい。 That is, as shown in FIG. 2, the blade 3 has a blade tip portion that is thinner than the blade root portion 3A, so that the rotational resistance does not increase. At the time of rotation of the blade 3, since the rotational peripheral speed is small in the blade root portion 3A, resistance is hardly caused even if the thickness of the leading edge 3F is thick.
 回転周速の早い翼端部分では、魚の半身のように、前縁部3Fおよび後縁部3Gは尖っており、正面3Dの中間へかけて次第に厚さが増しているので、回転時の前縁3Fに対する相対流は、正面3Dにおける最大の厚さ部分を弦方向へ通過すると、コアンダ効果によって高速で通過し、抵抗にならない。 At the tip of the wing with a high rotational peripheral speed, the front edge 3F and the rear edge 3G are sharp like a fish half, and gradually increase in thickness toward the middle of the front surface 3D. When the relative flow with respect to the edge 3F passes through the maximum thickness portion in the front surface 3D in the chord direction, it passes at a high speed by the Coanda effect and does not become a resistance.
 このように、このロータ1は、ブレード3で水を下流方向へ押しのけるのではなく、ブレード3の回転により、弦方向に生じた、相対流が正面3Dにおいて、コアンダ効果に伴う高速水流となって、後縁部3Gから背面3E方向へ通過して、その反作用として推力を得るものである。 In this way, the rotor 1 does not push the water in the downstream direction by the blade 3, but the relative flow generated in the chord direction by the rotation of the blade 3 becomes a high-speed water flow accompanying the Coanda effect in the front surface 3D. Then, it passes through the rear edge portion 3G in the direction of the back surface 3E, and obtains thrust as its reaction.
 その結果、力で水を押し出すのではないので、大な動力を必要としない。ブレード3の回転によって自然に生じるコアンダ効果を利用するので、ブレード3が回転すれば、コアンダ効果は自然に生じ、正面3Dに沿う流体の流速が、背面3Eに沿う流体よりも早ければ、高速流は背面3E方向へ自然に通過する。 As a result, water is not pushed out by force, so a large amount of power is not required. Since the Coanda effect naturally generated by the rotation of the blade 3 is used, if the blade 3 rotates, the Coanda effect naturally occurs. If the flow velocity of the fluid along the front surface 3D is faster than the fluid along the back surface 3E, a high-speed flow is generated. Naturally passes in the direction of the back surface 3E.
 図9は、本発明のロータ1を、舟艇5の水上の推進機に搭載したもので、図10はロータ筐体7の一部破断面を示す側面図である。舟艇5の後甲板上に、支持体6を介して、ロータ筐体7が水平に取付られている。ロータ筐体7内には、原動機8およびクラッチ9を連結したロータ軸10が支持され、ロータ軸4の先端にロータ1が配設されている。 FIG. 9 shows the rotor 1 of the present invention mounted on a propulsion device on the water of the boat 5, and FIG. 10 is a side view showing a partially broken section of the rotor housing 7. A rotor housing 7 is horizontally mounted on the rear deck of the boat 5 via a support 6. A rotor shaft 10 connected to a prime mover 8 and a clutch 9 is supported in the rotor housing 7, and the rotor 1 is disposed at the tip of the rotor shaft 4.
 ロータ軸4の前端部分は、クラッチ9を介して、原動機8に連結され、原動機8により、ロータ1が回転させられるようになっているが、クラッチ9の接続を解除すると、ロータ1は風力によって回転する。ブレード3の枚数は、2枚~6枚の範囲内で任意に設定する。 The front end portion of the rotor shaft 4 is connected to a prime mover 8 via a clutch 9 so that the rotor 1 can be rotated by the prime mover 8. When the clutch 9 is released, the rotor 1 is driven by wind power. Rotate. The number of blades 3 is arbitrarily set within the range of 2 to 6.
 ロータ軸4の回転数は、ロータ筐体7内に設けた計速器10で計測され、その計測値は、自動制御器11に入力されるようになっている。
 原動機8に入力し、クラッチ9を接続させると、ロータ1は原動機8により回転する。
The rotational speed of the rotor shaft 4 is measured by a speedometer 10 provided in the rotor casing 7, and the measured value is input to the automatic controller 11.
When an input is made to the prime mover 8 and the clutch 9 is connected, the rotor 1 is rotated by the prime mover 8.
 ロータ1の回転に伴い、ブレード3により気流が、図9におけるF、F矢示方向へ放流されると、舟艇5は推進力を得て前進する。
すなわち背面3E方向の軸心方向に向って集中するので、推進力は大となる。
When the air current is discharged by the blade 3 in the directions indicated by arrows F and F in FIG. 9 as the rotor 1 rotates, the boat 5 moves forward with a propulsive force.
That is, the thrust is concentrated in the axial direction of the back surface 3E, so that the propulsive force is large.
 回転速度の高まったロータ1は、推進力を更に高める。これにより、僅かな補助動力を加えることにより、強力な推進力を得ることができる。このロータ1は、水中のスクリュウとして利用することもある。 Rotator 1 with increased rotational speed further enhances the driving force. Thereby, a strong driving force can be obtained by applying a slight auxiliary power. The rotor 1 may be used as an underwater screw.
 小動力で回転することにより、ブレードの受流面の弦方向に生じるコアンダ効果による高速流を、後縁から背面方向へ通過させて、その反作用で推進力を得ることができるので、小型舟艇などの推進機として利用される。 By rotating with small power, high speed flow due to the Coanda effect generated in the chord direction of the receiving surface of the blade can be passed from the rear edge to the back direction, and thrust can be obtained by its reaction, so small boats etc. Used as a propulsion machine.
1.横軸ロータ
2.ハブ
3.揚力型ブレード
3A.翼根部
3B.最大弦長部
3C.傾斜部
3D.正面(上流側)
3E.背面(下流側)
3F.前縁部
3G.後縁部
4.ロータ軸
5.舟艇
6.支持体
7.ロータ筐体
8.原動機
9.クラッチ
10.計測器
11.自動制御器
A~F.流体の流れる方向
S.回転軸心線
1. 1. Horizontal axis rotor Hub 3. Lift type blade 3A. Blade root 3B. Maximum chord length 3C. Inclined part 3D. Front (upstream side)
3E. Back (downstream)
3F. Front edge 3G. Rear edge 4. 4. Rotor shaft Boats 6. Support 7. Rotor housing 8. Prime mover 9. clutch
10.Instrument
11. Automatic controllers A to F. Direction of fluid flow Rotation axis

Claims (4)

  1.  揚力型ブレードにおいて、受流方向の正面を、弦方向で大きな弧状の膨出面とし、放流方向の背面を正面の膨出より小として、回転時に正面の弦方向に沿って後縁部から背面方向に通過するコアンダ効果による高速流を推進力となるようになっていることを特徴とする横軸ロータ。 In the lift type blade, the front face in the receiving direction is a large arc-shaped bulging surface in the chord direction, the rear face in the discharge direction is smaller than the bulging face in the front direction, and the rear edge direction from the rear edge along the front chord direction when rotating A horizontal axis rotor characterized in that a high-speed flow due to the Coanda effect passing through is used as a driving force.
  2.  前記揚力型ブレードは、翼根部における放流方向の背面が、弦方向で直線状かつ回転方向へ平行で、翼根部から最大弦長部へかけて、背面は後縁部から前縁部へかけて正面方向へ次第に大きく傾斜されることを特徴とする請求項1に記載の横軸ロータ。 In the lift type blade, the back surface in the discharge direction at the blade root is linear in the chord direction and parallel to the rotation direction, from the blade root to the maximum chord length, and from the rear edge to the front edge. The horizontal axis rotor according to claim 1, wherein the horizontal axis rotor is gradually inclined in a front direction.
  3.  前記揚力型ブレードは、側面視で、翼根部から翼端部へかけて次第に厚さを薄くし、かつ正面は翼根部から翼端部へかけて、背面方向へ次第に傾斜していることを特徴とする請求項1または2に記載の横軸ロータ。 The lift type blade has a thickness that gradually decreases from the blade root portion to the blade tip portion in a side view, and the front surface gradually inclines toward the back surface from the blade root portion to the blade tip portion. The horizontal axis rotor according to claim 1 or 2.
  4.  前記請求項1~3に記載の横軸ロータを、舟艇に配設されたロータ筐体のロータ軸に、ブレードの傾斜部の先端を船首方向に向けて装着することを特徴とする横軸ロータを備えた舟艇。 The horizontal axis rotor according to any one of claims 1 to 3, wherein the horizontal axis rotor is mounted on a rotor shaft of a rotor casing disposed in a boat with a tip of an inclined portion of a blade directed in a bow direction. A boat equipped with
PCT/JP2017/006592 2016-03-01 2017-02-22 Horizontal axis rotor and boat equipped with said rotor WO2017150299A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016038817A JP2017154576A (en) 2016-03-01 2016-03-01 Horizontal-shaft rotor and craft comprising the same
JP2016-038817 2016-03-01

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16/081,375 US20190009873A1 (en) 2016-03-01 2017-02-22 A horizontal shaft rotor and a watercraft having the rotor
EP17759765.5A EP3424811A4 (en) 2016-03-01 2017-02-22 Horizontal axis rotor and boat equipped with said rotor
KR1020187027575A KR20180120709A (en) 2016-03-01 2017-02-22 A transverse shaft rotor and a spindle with the rotor
CN201780014048.XA CN108698678A (en) 2016-03-01 2017-02-22 Horizontal axis rotor and the boat for having horizontal axis rotor

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WO2017150299A1 true WO2017150299A1 (en) 2017-09-08

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EP (1) EP3424811A4 (en)
JP (1) JP2017154576A (en)
KR (1) KR20180120709A (en)
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WO (1) WO2017150299A1 (en)

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JP2019049203A (en) * 2017-09-07 2019-03-28 株式会社ベルシオン Rotor blade and horizontal shaft water turbine equipped with the same

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WO2007052626A1 (en) * 2005-11-01 2007-05-10 Global Energy Co., Ltd. Quiet propeller
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EP3424811A1 (en) 2019-01-09
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KR20180120709A (en) 2018-11-06
JP2017154576A (en) 2017-09-07
EP3424811A4 (en) 2019-10-09

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