WO2021080533A2 - A new less energy-consuming high-efficiency fan blade profile - Google Patents

A new less energy-consuming high-efficiency fan blade profile Download PDF

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Publication number
WO2021080533A2
WO2021080533A2 PCT/TR2020/050892 TR2020050892W WO2021080533A2 WO 2021080533 A2 WO2021080533 A2 WO 2021080533A2 TR 2020050892 W TR2020050892 W TR 2020050892W WO 2021080533 A2 WO2021080533 A2 WO 2021080533A2
Authority
WO
WIPO (PCT)
Prior art keywords
fan blades
fans
fan
fan blade
profile
Prior art date
Application number
PCT/TR2020/050892
Other languages
French (fr)
Other versions
WO2021080533A3 (en
WO2021080533A4 (en
Inventor
Yücel HÖKELEK
Original Assignee
Hoekelek Yuecel
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 Hoekelek Yuecel filed Critical Hoekelek Yuecel
Priority to ES202290013U priority Critical patent/ES1291459Y/en
Priority to CN202090000910.9U priority patent/CN217558390U/en
Priority to DE212020000750.0U priority patent/DE212020000750U1/en
Publication of WO2021080533A2 publication Critical patent/WO2021080533A2/en
Publication of WO2021080533A3 publication Critical patent/WO2021080533A3/en
Publication of WO2021080533A4 publication Critical patent/WO2021080533A4/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/301—Cross-sectional characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/305—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the pressure side of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/502—Thermal properties
    • F05D2300/5021—Expansivity

Definitions

  • the invention relates to a new high efficiency and performance fan blade for use in cooling tower fans, suction fan blades, aspirator fan blades, ventilator fan blades, gas turbine fan blades, steam turbine fan blades, centrifugal water pump fans, fans of road sweepers, vacuum cleaner fans, vehicle spoilers, and roof- racks.
  • the fan blades and profiles used in the above mentioned systems and machines have been standardized and standard profiles are used. There are NACA and GOTINGEN profile standards around the world. The operating principle for these standard fan blades is as follows: The fan blade has lower and upper surfaces.
  • the speed of the fluid increases due to the curve on the upper surface causing the pressure to drop.
  • the pressure increases by decreasing the speed of the fluidal.
  • This pressure difference between the upper and lower surfaces is formed and this pressure difference constitutes the pressure force.
  • This pressure force consists of the components of the directional drag force, perpendicular to the flow, with the directional buoyancy force from the lower surface to the upper surface, and parallel to the flow.
  • the principles of increasing or lowering pressure are used in all aerodynamic machines and systems. With these pressure differences, pressure forces are created to give these devices the ability to perform their work.
  • the buoyancy force is much greater than the lifting force of the standard profiles, and the drag force, in contrast to the standard profiles, is negative, i.e., a force in the direction of motion of the wing. This increases the strength and performance of the fan blades.
  • Figure- 1 Double airfoil profile.
  • Figure-2 Axial fan blade consisting of double -profiles.
  • FIG. 3 Fan blade consisting of double -profiles and axial fan with 3 blades.
  • Figure-4 Radial fan blade profile.
  • Figure-5 Front section view of the radial fan.
  • Figure-6 Top section view of the radial fan
  • the new airfoil is composed of Y1 (1), Y2 (2), Y3 (3), Y4 (4), Y5 (5), Y6 (6), Y7 (7), Y8 (8) surfaces.
  • the fan blade is given a spin angle depending on the number of revolutions.
  • the air is directed to the surfaces of the large profile, Y2 (2), Y3 (3) by dividing it in two by the surface of Y1 (1).
  • Air directed to surface Y2 (2) is directed to surface Y4 (4), Y5 (5). Since flow is accelerated on Y2 and Y3 surfaces, pressure drop occurs on these surfaces.
  • the small profile consisting of surfaces Y6 (6), Y7 (7), Y8 (8), sweeps the accelerated and directed fluid from the large profile away from the fan.
  • the propeller blades are given spin angle along the wing. This spin angle is calculated separately for each point along the blade, according to the speed of the propeller and the fluidal.
  • the profile of the propeller blade is more than curve in the area close to the handle (9), and the profile curve decreases from the handle to the edge of the blade. The variation of this curve varies with the angle of the spin along the blade.
  • a flow is formed on the outer surface of the large profile and the outer surface of the small profile of the axial fan blade with two profiles. At the same time, a flow occurs in the gap in the middle of the two profiles. The pressure of the flow in the middle of the two profiles reduces the pressure forces on the outer surfaces of both profiles, preventing the fan blade from flexing backwards and thus breaking.
  • the spoiler used in land and sea vehicles is in the profile in Figure 4, and if desired, roof-rack can also be made in the same profile. The spoiler made in this profile saves fuel in the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a new high efficiency and performance fan blade for use in cooling tower fans, suction fan blades, aspirator fan blades, ventilator fan blades, gas turbine fan blades, steam turbine fan blades, centrifugal water pump fans, fans of road sweepers, vacuum cleaner fans, vehicle spoilers, and roof- racks. Energy conversion systems and machines running according to the aerodynamic principle operate more effectively with this new fan blade.

Description

INSTRUCTION BOOK
A NEW LESS ENERGY-CONSUMING HIGH-EFFICIENCY FAN BLADE PROFILE
The invention relates to a new high efficiency and performance fan blade for use in cooling tower fans, suction fan blades, aspirator fan blades, ventilator fan blades, gas turbine fan blades, steam turbine fan blades, centrifugal water pump fans, fans of road sweepers, vacuum cleaner fans, vehicle spoilers, and roof- racks.
The fan blades and profiles used in the above mentioned systems and machines have been standardized and standard profiles are used. There are NACA and GOTINGEN profile standards around the world. The operating principle for these standard fan blades is as follows: The fan blade has lower and upper surfaces.
The speed of the fluid (air, hydraulic, etc.) increases due to the curve on the upper surface causing the pressure to drop. On the lower surface, the pressure increases by decreasing the speed of the fluidal. The pressure difference between the upper and lower surfaces is formed and this pressure difference constitutes the pressure force. This pressure force consists of the components of the directional drag force, perpendicular to the flow, with the directional buoyancy force from the lower surface to the upper surface, and parallel to the flow. The principles of increasing or lowering pressure are used in all aerodynamic machines and systems. With these pressure differences, pressure forces are created to give these devices the ability to perform their work.
In the new airfoil profile, which is the subject of invention, the buoyancy force is much greater than the lifting force of the standard profiles, and the drag force, in contrast to the standard profiles, is negative, i.e., a force in the direction of motion of the wing. This increases the strength and performance of the fan blades.
The following are descriptions of the shapes which will help to better understand the new airfoil that is the subject of the invention:
Figure- 1: Double airfoil profile.
Figure-2: Axial fan blade consisting of double -profiles.
Figure-3: Fan blade consisting of double -profiles and axial fan with 3 blades.
Figure-4: Radial fan blade profile. Figure-5: Front section view of the radial fan.
Figure-6: Top section view of the radial fan
The corresponding part numbers in the figures are as follows:
1- Y1 surface
2- Y2 surface 3- Y3 surface
4- Y4 surface
5- Y5 surface
6- Y6 surface
7- Y7 surface 8- Y8 surface
9- Fan blade handle of axial fan
10- Direction of rotation of the axial fan
11- Connection flange of the blades of the axial fan
12- Radial fan in fan snail 13- Fan snail
14- Suction of the radial fan
15- Output of the radial fan
16- Shaft of the radial fan
17- Radial fan blades The new airfoil is composed of Y1 (1), Y2 (2), Y3 (3), Y4 (4), Y5 (5), Y6 (6), Y7 (7), Y8 (8) surfaces. The fan blade is given a spin angle depending on the number of revolutions. When the fan is rotated with any engine, the air is directed to the surfaces of the large profile, Y2 (2), Y3 (3) by dividing it in two by the surface of Y1 (1). Air directed to surface Y2 (2) is directed to surface Y4 (4), Y5 (5). Since flow is accelerated on Y2 and Y3 surfaces, pressure drop occurs on these surfaces. Due to the indentation on the surface of Y4 towards the inside of the profile, volumetric expansion occurs and the velocity of the flow decreases, resulting in high pressure. This high pressure creates a pressure force towards the surfaces Y2 and Y3. This pressure force is in the rotation direction of the fan blade. This reduces the energy wasted by the fan. The fluidal on surface Y3 leaves the fan blade in line with the curve. The Y5 surface sweeps the fluid and directs it to the small profile. The large profile both reduces the amount of energy the wing uses, and also directs the fluid at the volume it rotates by accelerating it.
The small profile, consisting of surfaces Y6 (6), Y7 (7), Y8 (8), sweeps the accelerated and directed fluid from the large profile away from the fan.
These pressure forces are in the direction of the wing, both lifting and forward (leading edge). This means that the intensity and direction of the pressure forces acting on the fan blades are very different from the standard fan blades. Since the pressure difference on the fan blade surface is too high, the intensity of the pressure forces formed is too high. In addition, the directions of the pressure forces are such that they have a positive effect (thrust in the direction of rotation) on the fan blade. All of this increases the efficiency and performance of the new airfoil profile which is the subject of the invention.
In propellers, since the propeller blades have a loop, to maintain the angle of attack, the propeller blades are given spin angle along the wing. This spin angle is calculated separately for each point along the blade, according to the speed of the propeller and the fluidal. The profile of the propeller blade is more than curve in the area close to the handle (9), and the profile curve decreases from the handle to the edge of the blade. The variation of this curve varies with the angle of the spin along the blade. A flow is formed on the outer surface of the large profile and the outer surface of the small profile of the axial fan blade with two profiles. At the same time, a flow occurs in the gap in the middle of the two profiles. The pressure of the flow in the middle of the two profiles reduces the pressure forces on the outer surfaces of both profiles, preventing the fan blade from flexing backwards and thus breaking.
Snail (13) and all other parts are identical in centrifugal pump, vacuum cleaner, road cleaner, radial fan, and the working fan blade (12) profile (17) is the profile that is subject to invention. A sufficient number of fan blades are designed according to the speed and diameter of the fan for the section profile (17). (Figure 5) The fan blades are composed of Y1 (1), Y2 (2), Y3 (3), Y4 (4), Y5 (5) surfaces in centrifugal pumps and radial fans. When the fan is rotated with a motor, the speed of the fluidal increases on the surface of Y3 and the pressure on that surface drops. On the surface of Y4, the pressure rises because the speed is low. A pressure force is created from high pressure to low pressure. Since this pressure force is in the same direction as the direction of rotation of the fan, energy consumption is reduced. The spoiler used in land and sea vehicles is in the profile in Figure 4, and if desired, roof-rack can also be made in the same profile. The spoiler made in this profile saves fuel in the vehicle.

Claims

CLAIMS 1. The invention is an innovation in the airfoil profiles used in cooling tower fans, suction fan blades, aspirators fan blades, ventilator fan blades, gas turbine fan blades, steam turbine fan blades, centrifugal water pump fans, vehicle spoilers, roof -racks, road sweeping machine fans, vacuum cleaner fans and it is characterized in that by; Y4 (4) and Y5 (5) surfaces of the airfoil profile have the ability to expand inwards towards the upper surface. 2. A system according to Claim 1, and one fan blade consists of two profiles and there is a widening gap between the two profiles.
PCT/TR2020/050892 2019-10-22 2020-09-28 A new less energy-consuming high-efficiency fan blade profile WO2021080533A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES202290013U ES1291459Y (en) 2019-10-22 2020-09-28 FAN BLADE PROFILE
CN202090000910.9U CN217558390U (en) 2019-10-22 2020-09-28 Aerodynamic airfoil assembly
DE212020000750.0U DE212020000750U1 (en) 2019-10-22 2020-09-28 A new high efficiency fan blade profile with lower energy consumption

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/16253 2019-10-22
TR201916253 2019-10-22

Publications (3)

Publication Number Publication Date
WO2021080533A2 true WO2021080533A2 (en) 2021-04-29
WO2021080533A3 WO2021080533A3 (en) 2021-07-29
WO2021080533A4 WO2021080533A4 (en) 2021-09-10

Family

ID=75620217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2020/050892 WO2021080533A2 (en) 2019-10-22 2020-09-28 A new less energy-consuming high-efficiency fan blade profile

Country Status (4)

Country Link
CN (1) CN217558390U (en)
DE (1) DE212020000750U1 (en)
ES (1) ES1291459Y (en)
WO (1) WO2021080533A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242467A1 (en) * 2022-03-08 2023-09-13 GT Karbon Izleme Ve Enerji Verimliligi Sanayi Ticaret Anonim Sirketi Axial flow fan tandem blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115738520A (en) * 2022-11-09 2023-03-07 珠海格力电器股份有限公司 Filter screen cleaning mechanism and clothes treatment device with same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR200400389U (en) * 2004-03-01 2005-03-21 H�Kelek Y�Cel A more efficient new blade profile used in wind turbines.
TR201802448A2 (en) * 2018-02-21 2018-03-21 Ilhan Oezpinar A NEW DOUBLE WING PROFILE WITH INTERMEDIATE BEAMS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242467A1 (en) * 2022-03-08 2023-09-13 GT Karbon Izleme Ve Enerji Verimliligi Sanayi Ticaret Anonim Sirketi Axial flow fan tandem blade

Also Published As

Publication number Publication date
WO2021080533A3 (en) 2021-07-29
ES1291459Y (en) 2022-08-31
CN217558390U (en) 2022-10-11
DE212020000750U1 (en) 2022-06-27
ES1291459U (en) 2022-06-07
WO2021080533A4 (en) 2021-09-10

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