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Propeller blade with built-in electric heating function

A technology of electric heating and propeller, which is applied to propellers, deicing devices, aircraft parts, etc., and can solve the problems of increasing operating costs, scrapping and replacing with new ones, etc.

Pending Publication Date: 2021-04-09
安徽劲旋风航空科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The de-icing belt is a rubber product, and it must be replaced when the propeller TBO is overhauled. It must be scrapped and replaced, which increases the operating cost

Method used

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  • Propeller blade with built-in electric heating function
  • Propeller blade with built-in electric heating function
  • Propeller blade with built-in electric heating function

Examples

Experimental program
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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar symbols designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be understood as limiting the present invention.

[0024] It is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated to ", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather t...

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PUM

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Abstract

The invention discloses a propeller blade with a built-in electric heating function, which comprises a blade body, a skin layer and an electric heating layer, the blade body is provided with an electric heating area, the electric heating layer is laid in the electric heating area, the skin layer is laid on the blade body and covers the electric heating layer, and the outer surface of the skin layer forms a blade aerodynamic configuration. According to the propeller blade with the built-in electric heating function, the electric heating layer is laid in the blade skin layer, the aerodynamic shape of the blade is not changed, the aerodynamic performance of the propeller is guaranteed, and even if the electric heating area on the front edge of the blade is impacted by foreign objects, the electric heating function does not fail as long as the blade structure does not fail, so that the reliability is greatly improved; the electric heating deicing and anti-icing functions are achieved, meanwhile, the structural weight of the propeller is not additionally increased, and weight reduction of the propeller is achieved.

Description

technical field [0001] The invention relates to the technical field of propellers, in particular to a propeller blade with built-in electric heating. Background technique [0002] At present, the anti-icing measures for propellers are to add electric heating deicing strips or liquid deicing strips on the surface of the theoretical shape. Regardless of the electric heating deicing belt or the liquid deicing belt, the rubber parts are bonded to the surface of the leading edge of the blade, which partially changes the aerodynamic shape of the blade and reduces the original performance of the propeller; the electric heating deicing belt is a resistance The wire is heated, and the heating is uneven, so a large power is required to realize the deicing function; the electric heating deicing belt is pasted on the surface of the front edge of the propeller, and it is easy to be impacted by foreign objects and cause the heating function of the deicing belt to fail; the deicing belt is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D15/14B64D15/12B64C11/18B64C11/20
CPCB64D15/14B64D15/12B64C11/18B64C11/20Y02T50/40
Inventor 史立南雍胡慧君
Owner 安徽劲旋风航空科技有限公司
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