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Vane assembly for a fluid dynamic machine and propulsion device

A technology of fluid dynamics and impeller group, applied in the direction of wind-driven propulsion components, propulsion-based emission reduction, propulsion components, etc., can solve problems such as high cost, achieve reduced manufacturing costs, simple overall structural design, and maximized performance Effect

Inactive Publication Date: 2016-08-10
米罗斯拉夫·诺瓦克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is disadvantageous to adopt such complex and costly impeller control mechanism

Method used

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  • Vane assembly for a fluid dynamic machine and propulsion device
  • Vane assembly for a fluid dynamic machine and propulsion device
  • Vane assembly for a fluid dynamic machine and propulsion device

Examples

Experimental program
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Embodiment Construction

[0058] like figure 1 Shown is a blade for a turbine, in particular a wind turbine, comprising a rotor 10 with an axis of rotation 11, which may be upright. The rotor 10 may have a hub 12 coaxial with the rotating shaft 11, and spokes 13, 14 or the like fixed on the hub 12 for driving the impeller blades 15 to rotate. The pivot 16 may include a shaft 17 , the opposite ends of the shaft 17 are supported by bearings 18 , and the bearings 18 may be fixedly mounted on the spokes 13 , 14 . The impeller 15 is thus freely rotatable through 360° about the pivot axis 19 , for example, the impeller 15 may be fixedly mounted on the shaft 17 such that the impeller blades 15 and the shaft 17 rotate together. figure 1 The impeller blades 15 are shown in a first position. For the purpose of creating the mathematical rotation model below, the impeller blades 15 are considered to rotate at a specific radius of rotation (R NT ), the rotation speed n (Hz), and the angular frequency ω (rad / sec)...

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Abstract

A vane assembly, particularly suitable for a transverse flow, or vertical axis, turbine or a propulsion device comprises: a vane with at least one concavo-convex part that is mounted by a pivot about so that it is free to rotate about a pivot axis. The pivot may connect the vane to a rotor with an axis of rotation, the pivot axis being inclined to the concave face such that, as the rotor turns, the vane is free to rotate about the pivot axis between a first position in which the vane defines a high-drag configuration for retreating with a transverse fluid flow, and a second position in which the vane defines a reduced-drag configuration for advancing against the transverse fluid flow.

Description

technical field [0001] The present invention relates to blade assemblies for use in fluid dynamic devices, such as turbines, particularly, but not exclusively, wind and water turbines. The invention also relates to propulsion means, such as for wind driven equipment such as pontoons. Background technique [0002] In the prior art, people have spent a lot of energy on how to obtain effective energy from fluids for use in turbine equipment, such as wind energy and tidal flow, and turbines using these energy sources have many common features. A typical horizontal axis wind turbine (HAWT) of the prior art has two or three elongated guide vanes with wind flowing axially through the turbine. Typically, horizontal axis turbines rotate at a tip speed ratio several times the wind speed so that the turbine disks can efficiently utilize wind energy. The above-mentioned blades are designed with a high lift-to-drag ratio airfoil structure and driven by aerodynamic lift. The airfoil se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/06F03D7/06
CPCF03D3/061B63H13/00Y02E10/74F03B3/14F03B17/065F03D3/064F05B2240/202F05B2240/931F05B2250/314F03D9/32F03D3/005F03D3/067F05B2250/411F05B2250/711F05B2250/712B63H9/061Y02E10/20Y02E10/72Y02T70/5236Y02E10/30F03D3/06F03D1/0658F03D1/0675B63H9/08
Inventor 米罗斯拉夫·诺瓦克
Owner 米罗斯拉夫·诺瓦克