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1. JP2017154576 - HORIZONTAL-SHAFT ROTOR AND CRAFT COMPRISING THE SAME

Office
Japan
Application Number 2016038817
Application Date 01.03.2016
Publication Number 2017154576
Publication Date 07.09.2017
Publication Kind A
IPC
B63H 1/26
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
HMARINE PROPULSION OR STEERING
1Propulsive elements directly acting on water
02of rotary type
12with rotation axis substantially in propulsive direction
14Propellers
26Blades
B63H 7/02
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
HMARINE PROPULSION OR STEERING
7Propulsion directly actuated on air
02using propellers
CPC
B63H 7/02
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
HMARINE PROPULSION OR STEERING
7Propulsion directly actuated on air
02using propellers
B63H 1/26
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
HMARINE PROPULSION OR STEERING
1Propulsive elements directly acting on water
02of rotary type
12with rotation axis substantially in propulsive direction
14Propellers
26Blades
Applicants BELLSION:KK
NTN株式会社
Inventors SUZUKI MASAHIKO
鈴木 政彦
Agents 竹沢 荘一
竹ノ内 勝
横堀 芳徳
Title
(EN) HORIZONTAL-SHAFT ROTOR AND CRAFT COMPRISING THE SAME
(JA) 横軸ロータ並びにそのロータを備えた舟艇
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a horizontal-shaft rotor which makes power low and makes rotation efficiency high, and which rearward flows a high-speed flow associated with a Coanda effect brought about by rotation of a blade, without pushing out a fluid by the blade, so as to obtain a propulsive force by reaction.

SOLUTION: In a lift type blade 1, a front face 3D in a flow reception direction is formed as a swelling face that assumes a large arc shape in a chord direction, and swelling of a back face 3E in a discharge direction is set smaller than swelling of the front face 3D so that a high-speed flow passing in a direction of the back face 3E from a rear edge 3G along the chord direction of the front face during rotation can be turned into a propulsive force.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2017,JPO&INPIT


(JA)

【課題】 本発明は、ブレードで流体を押し出すのではなく、ブレードの回転により生じるコアンダ効果に伴う高速流を背面方向へ流し、反作用で推進力を得る、小動力で回転効率の高い横軸ロータを提供することを目的としている。
【解決手段】 揚力型ブレード1において、受流方向の正面3Dを、弦方向で大きな弧状の膨出面とし、放流方向の背面3Eを正面3D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3G部から背面3E方向に通過する高速流を推進力となるようになっている。
【選択図】 図1


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