Connecting element for connecting a blade to the hub in an industrial axial fan, and blade system comprising said connecting element

Inactive Publication Date: 2018-10-11
R E M HLDG
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0073]Therefore, with respect to a blade system of prior art which generally cannot operate in a large range of speed around the critical one due to the intensification of the response, for the blade system of the present invention comprising a connecting element according to the present invention, which system is also part of the present in

Problems solved by technology

These forces originate fatigue phenomena, therefore they are more

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
  • Connecting element for connecting a blade to the hub in an industrial axial fan, and blade system comprising said connecting element
  • Connecting element for connecting a blade to the hub in an industrial axial fan, and blade system comprising said connecting element
  • Connecting element for connecting a blade to the hub in an industrial axial fan, and blade system comprising said connecting element

Examples

Experimental program
Comparison scheme
Effect test

Example

[0090]With reference to the above mentioned Figures, the main task of the present invention is to provide a connecting element for connecting the airfoil profile to the hub of an industrial axial fan.

[0091]With reference to the above, the present invention concerns a connecting element 1 consisting of an extremely simple element, see for example FIGS. 5 to 7, having essentially a rectangular cross-section and a “L” shaped longitudinal-section comprising a first part 1a having a substantially straight develop and a second part 1b having a straight develop, said first 1a and second 1b part being connected by a linking part 1c presenting a curvature radius so that said first 1a and second 1b parts lie on substantially perpendicular planes.

[0092]Said first part 1a of the L-shaped profile, which is the shorter part, is apt to be connected to the hub 20 while said second part 1b, which is the longer part, is apt to be connected to the airfoil profile 10, said link part 1c connecting said ...

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 present invention concerns a connecting element for connecting a blade, or airfoil profile, to the hub of an industrial axial fan, a blade system comprising said connecting element, and an industrial axial fan comprising such blade system. The connecting element (1) for connecting a blade (10) to the hub (20) of an industrial axial fan according to the present invention, is realized in a single L-shaped piece comprising a first part (1a) having a substantially straight develop and a second part (1b) having a substantially straight develop, said first (1a) and second (1b) part being connected by a linking part (1c) presenting a curvature radius, said first (1a) and second (1b) parts lying on substantially perpendicular planes. The connecting element according to the present invention allows to achieve several advantages with respect to the prior art, one of said advantages consisting of its extremely simple shape and manufacturing process, which render the connecting element economically advantageous.

Description

FIELD OF THE INVENTION[0001]The present invention concerns a connecting element for connecting a blade, or airfoil profile, to the hub of an industrial axial fan, a blade system comprising said connecting element, and an industrial axial fan comprising such blade system.[0002]The axial fans for industrial application typically comprise a hub and a plurality of airfoil profiles.[0003]A blade basically comprises two parts, the airfoil profile having the function to move the air, and the connecting element or attachment having the function to link the airfoil profile to the hub.[0004]Object of the present invention is the connecting element connecting the airfoil to the hub and the blade system comprising a blade, an hub and the connecting element according to the present invention.[0005]It is further an object of the present invention an industrial axial fan comprising such blade system.STATE OF THE ART[0006]In the field of axial fans, many different technical solutions are known for ...

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): F04D19/00F04D29/34F04D29/66
CPCF04D19/002F04D29/34F04D29/668F04D29/646F05B2230/24F05B2250/71F05B2270/1095F05B2280/10F05B2280/4003F05B2280/6003F05D2230/24F05D2250/71F05D2270/114F05D2300/10F05D2300/43F05D2300/603
Inventor MOSIEWICZ, ROBERTO EDUARDO
Owner R E M HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap