Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cross bionic blade combining carangidae fish body and pinion and preparation method of cross bionic blade

A fish body and blade technology, which is applied to the components of the pumping device for elastic fluid, mechanical equipment, liquid fuel engines, etc., can solve the problems of insignificant increase in air volume and air pressure, reducing the working efficiency of the fan, and increasing the motor load, etc. Achieve the effect of reducing mass, reducing cross-sectional area, and eliminating eddy currents

Active Publication Date: 2018-08-10
XI AN JIAOTONG UNIV
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, the above products have a certain noise effect, but the air volume and wind pressure increase are not obvious; in addition, the quality of the blades of the above products is still relatively large, which increases the load on the motor and reduces the working efficiency of the fan

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cross bionic blade combining carangidae fish body and pinion and preparation method of cross bionic blade
  • Cross bionic blade combining carangidae fish body and pinion and preparation method of cross bionic blade
  • Cross bionic blade combining carangidae fish body and pinion and preparation method of cross bionic blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention is described in further detail below in conjunction with accompanying drawing:

[0031] Studies have shown that fish have evolved various shapes and complete physiological structures during the long-term evolution process, and these shapes and structures correspondingly enable them to have excellent swimming performances such as high efficiency and fast speed. In addition to the unique swing propulsion method, the high-efficiency swimming performance of fish also benefits from its effective drag reduction mechanism. In addition to the non-smooth structure of the fish skin, this drag reduction mechanism is also directly related to the streamlined shape of the fish. In addition, birds have evolved wings and feathers with diverse structures and excellent performance during the long-term evolution process. Studies have shown that goshawks have almost no sound when flying, thanks to their non-smooth structure at the leading edge and sawtooth structure a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a cross bionic blade combining a carangidae fish body and a pinion and a preparation method of the cross bionic blade, and the cross bionic blade is used for a multi-blade centrifugal fan. The cross bionic blade comprises a blade body. The cross section of the blade body has a carangidae-fish-cross-section-contour-imitation appearance, the mean camber line of the blade bodycross section is in a single arc shape, and the circle center position, the circular arc radius and the circular arc central angle of the mean camber line of the blade body cross section are determined according to a forward-bent blade profile design method of the multi-blade centrifugal fan. The end face, facing the impeller sucking-in side, of the blade body is of a wave-shaped structure, and the end face, facing the impelling blowing-out side, of the blade body is of a saw-tooth-shaped structure. The blade can improve the flowing of airflow in the impeller on the premise of increasing theair volume, the pressure fluctuation on the surface of the blade is lowered, and the aerodynamic noise is lowered.

Description

technical field [0001] The invention relates to a bionic blade and a preparation method thereof, in particular to a cross bionic blade combined with a trevally fish body and a bird wing and a preparation method thereof. Background technique [0002] The forward-facing multi-blade centrifugal fan is widely used in household appliances such as range hoods and ventilation devices. It has the characteristics of compact structure, high pressure coefficient, and large flow coefficient. Its structure includes motor, volute and impeller. Among them, the impeller is the core component of the multi-blade centrifugal fan. It has the characteristics of large number of blades, large blade curvature, large inner and outer diameter of the impeller, and short blade passage. Its performance directly affects the range hood, ventilation, etc. devices and other household appliances. When the range hood is working, the motor is directly connected to drive the impeller to rotate, and the oil fu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04D29/30F04D29/66G06F17/50
CPCF04D29/281F04D29/30F04D29/666F04D29/667G06F30/17
Inventor 刘小民熊仲营
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com