KR20090101798A - Less friction blade - Google Patents

Less friction blade

Info

Publication number
KR20090101798A
KR20090101798A KR1020080096483A KR20080096483A KR20090101798A KR 20090101798 A KR20090101798 A KR 20090101798A KR 1020080096483 A KR1020080096483 A KR 1020080096483A KR 20080096483 A KR20080096483 A KR 20080096483A KR 20090101798 A KR20090101798 A KR 20090101798A
Authority
KR
South Korea
Prior art keywords
blade
fluid
flow
resistance
propeller
Prior art date
Application number
KR1020080096483A
Other languages
Korean (ko)
Inventor
박경희
Original Assignee
박경희
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박경희 filed Critical 박경희
Priority to KR1020080096483A priority Critical patent/KR20090101798A/en
Publication of KR20090101798A publication Critical patent/KR20090101798A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Abstract

PURPOSE: A low resistance blade is provided to achieve frictional resistance reduction, low noise and vibration, and high efficiency in a blade apparatus, such as propeller and impeller which generates the movement of fluid. CONSTITUTION: A low resistance blade(11), which causes the movement of fluid or converts the flow into power, is attached with riblets(13) on the surface in order to reduce the frictional resistance with a fluid. The riblets are minute protuberances made of shark scales in the shape of ribs. The blade is a screw type, a propeller type, or a windmill type.

Description

저저항 블레이드{Less Friction Blade}Low Resistance Blades {Less Friction Blade}

본 발명은 기체, 액체와 같은 유체(流體)의 이동을 발생시키거나 상기 유체의 이동으로부터 동력을 얻거나 상기 유체의 이동을 제어하는 스크류, 임펠러, 프러펠러 등과 같은 기구의 블레이드 저항 또는 마찰을 저감시키는 구조에 관한 것이다.The present invention reduces the blade resistance or friction of a mechanism such as a screw, an impeller, a propeller, etc. to generate a movement of a fluid such as a gas or a liquid, to obtain power from or to control the movement of the fluid. It is about structure to let.

일반적으로 상기 프러펠러와 같은 기구는 샤프트를 중심으로 블레이드가 유체의 유동을 일으키거나 유체의 유동에 의해서 회전을 하도록 구성되어 있으며,In general, a mechanism such as the propeller is configured such that a blade causes a flow of a fluid about a shaft or rotates by a flow of a fluid.

항공기, 선박, 펌프 등에 사용되어 유체의 흐름(유동)을 발생시키고 또는 수차, 풍차, 풍력발전기 등에 사용되어 유체의 흐름을 동력으로 전환시킨다.It is used in aircrafts, ships, pumps, etc. to generate fluid flow (flow), or it is used in water wheels, windmills, wind turbines, etc. to convert fluid flow into power.

상기와 같은 프러펠러는 유체와 마찰 저항을 받거나 일으키며 이러한 이유로 효율이 감소하고 소음, 진동이 증가하는 결과를 야기시킨다.Such a propeller is subjected to or causes frictional resistance with the fluid and for this reason results in decreased efficiency and increased noise and vibration.

통상, 레이놀즈 수에 의한 공기 등 유체저항에는 그 형상에서 오는 형상저항과 표면의 마찰에 의한 마찰저항이 있으며, 상기 형상저항을 저감하기 위하여 그 형태를 충분히 유선형에 근접시켜 형상저항을 감소시키면 그 다음은 표면의 마찰에서 오는 마찰저항이 문제가 되는 것으로서 상기 블레이드는 상기 마찰저항을 받거나 일으키며 회전하게 된다.In general, fluid resistance such as air by Reynolds number has a shape resistance coming from the shape and friction resistance due to the friction of the surface, and in order to reduce the shape resistance, if the shape is sufficiently close to the streamline to reduce the shape resistance, The frictional resistance that comes from the friction of the silver surface becomes a problem, and the blade rotates while receiving or causing the frictional resistance.

상기한 바에 따라서 본 발명에서는 상기 프러펠러의 블레이드 표면과 유체와의 사이에 마찰저항을 감소시키는 것을 과제로 한다.According to the above, it is an object of the present invention to reduce the frictional resistance between the blade surface of the propeller and the fluid.

블레이드에 있어서,In the blade,

상기 블레이드에는 유체와의 마찰저항을 줄이기 위한 리블렛 처리가 되고, 상기 리블렛 처리는 상어비늘의 미세한 작은 갈비뼈 형상의 돌기가 상기 블레이드의 표면에 형성 또는 부착되도록 한다.The blade is a riblet treatment to reduce the frictional resistance with the fluid, the riblet treatment is such that a small rib-like projection of the shark scale is formed or attached to the surface of the blade.

본 발명에 따르면,According to the invention,

프러펠러, 임펠러와 같은 블레이드 표면과 유체 사이에 마찰저항이 감소하고 따라서 저소음, 저진동, 고효율의 블레이드가 제공될 수 있다.Friction resistance is reduced between the fluid and blade surfaces such as propellers and impellers and thus low noise, low vibration, high efficiency blades can be provided.

도1은 스크류 형태로서 유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 블레이드 사시도1 is a perspective view of a blade in the form of a screw that generates a flow of fluid or converts the flow of fluid into power;

도2는 팔랑개비 프러펠러 형태로서 유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 블레이드 사시도FIG. 2 is a perspective view of a blade that generates a flow of fluid or converts the flow of power into power in the form of a fanggae propeller; FIG.

도3은 풍차 형태로서 유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 블레이드 사시도3 is a perspective view of a blade for generating a flow of fluid in the form of a windmill or converting the flow of fluid into power;

이하, 도1 내지 도3의 도면을 참조하여 본 발명을 개시하며,Hereinafter, the present invention will be described with reference to the drawings of FIGS. 1 to 3.

도1은 스크류 형태; 도2는 일반적인 팔랑개비 프러펠러 형태; 도3은 풍력발전기의 풍차 형태로서 유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 블레이드로서,1 is a screw form; Figure 2 is a typical flutter vane propeller form; 3 is a blade for generating a flow of fluid or converting the flow of fluid into power in the form of a windmill of a wind turbine,

샤프트(12)를 회전축으로 회전하며 유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 기구(10)의 블레이드(11)에 있어서,In the blade (11) of the mechanism (10) which rotates the shaft (12) about its axis of rotation and generates a flow of fluid or converts the flow of fluid into power,

상기 블레이드에는 유체와의 마찰저항을 줄이기 위한 리블렛 처리(13)가 되고, 상기 리블렛 처리는 상어비늘의 미세한 작은 갈비뼈 형상의 돌기가 상기 블레이드의 표면에 형성 또는 부착되는 것을 특징으로 한다.The blade is a riblet treatment 13 for reducing the frictional resistance with the fluid, the riblet treatment is characterized in that the fine rib-like projections of the shark scale is formed or attached to the surface of the blade.

Claims (1)

유체(流體)의 유동을 발생시키거나 유체의 유동을 동력으로 전환하는 블레이드에 있어서,In a blade that generates a flow of fluid or converts a flow of fluid into power, 상기 블레이드에는 유체와의 마찰저항을 줄이기 위한 리블렛 처리가 되고, 상기 리블렛 처리는 상어비늘의 미세한 작은 갈비뼈 형상의 돌기가 상기 블레이드의 표면에 형성 또는 부착되는 것을 특징으로 하는 저저항 블레이드The blade is a riblet treatment for reducing the frictional resistance with the fluid, the riblet treatment is a low-resistance blade, characterized in that the minute rib-like protrusions of the shark scale is formed or attached to the surface of the blade
KR1020080096483A 2008-10-01 2008-10-01 Less friction blade KR20090101798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080096483A KR20090101798A (en) 2008-10-01 2008-10-01 Less friction blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080096483A KR20090101798A (en) 2008-10-01 2008-10-01 Less friction blade

Publications (1)

Publication Number Publication Date
KR20090101798A true KR20090101798A (en) 2009-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
KR (1) KR20090101798A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984831B (en) * 2014-05-27 2017-08-04 山东理工大学 Imitate the design method of shark groove microstructure in blades of large-scale wind driven generator surface
KR20200134676A (en) * 2019-05-23 2020-12-02 김문석 Fuel pump having shark skin's protrusion shaped
KR20230003881A (en) 2021-06-30 2023-01-06 충남대학교산학협력단 A high-effective pump whose impeller engraved riblets pattern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984831B (en) * 2014-05-27 2017-08-04 山东理工大学 Imitate the design method of shark groove microstructure in blades of large-scale wind driven generator surface
KR20200134676A (en) * 2019-05-23 2020-12-02 김문석 Fuel pump having shark skin's protrusion shaped
KR20230003881A (en) 2021-06-30 2023-01-06 충남대학교산학협력단 A high-effective pump whose impeller engraved riblets pattern

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