Unlock instant, AI-driven research and patent intelligence for your innovation.

Molded polymer air diffusing screen

A technology of air diffusion and plastic screen, which is applied in the field of air diffusion system, can solve the problems of reduced flexibility, difficulty in biaxial stretching, permanent coloring and dyeing of the screen, etc., so as to reduce accumulation, reduce cleaning times and costs Effect

Inactive Publication Date: 2001-04-25
SAINT GOBAIN PERFORMANCE PLASTICS CORP
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, there are also disadvantages to using fabric based air diffusion systems
First, the surface of the fabric screen is made in batches, which reduces the flexibility of changes in size, shape, density and hole shape, size and number
Also, there are difficulties with biaxial stretching by taut fabric inside the support frame
There are also difficulties in permanently coloring and dyeing such small batches of fabric diffusion screens

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
  • Molded polymer air diffusing screen
  • Molded polymer air diffusing screen
  • Molded polymer air diffusing screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Molded plastic mesh diffusers were tested with three different configurations. The thickness of the first screen is about 0.030 inches, the second is about 0.026 inches, and the third is about 0.020 inches. The approximate axial dimensions of the shafts to be tested for the three thicknesses are as follows:

[0044] When the thickness is about 30 inches, about 0.165-0.170 inches along the major axis, about 0.110-0.118 inches and 0.120 inches along the minor axis; when the thickness is about 0.026 inches, about 0.155-0.160 inches, about 0.095-0.100 inches along the minor axis; about 0.020 inches thick, about 0.150-0.155 inches along the major axis, about 0 along the minor axis .085-0.095 inches. As for the open area, the calculated open area is about 53%, 44% and 39% for the 0.030 inch, 0.026 inch and 0.020 inch thick screens, respectively.

[0045] Effective airflow deflection through the molded screen assembly was observed. Specifically, the 0.020-inch structure ef...

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

A molded plastic air diffusing screen in an air supply system provided for effectively diffusing or deflecting air supplied through a coreless or vane-free duct such that undesirable air turbulence and draft / currents are substantially diminished; more particularly, the novel plastic screen diffuser minimizes noise emanating from the penetrating air supply.

Description

field of invention [0001] This invention relates to air distribution systems for controlled environment settings in commercial and residential buildings. More specifically, the present invention relates to airflow diffusion screens made of molded nonwoven material, wherein the perforated pores are of suitable size, shape and number to achieve diffusion of the supplied airflow, thereby avoiding the Minimize or minimize the "dumping" effect that causes turbulence in the air supply environment. background of the invention [0002] The airflow diffuser system is designed to redirect the airflow supplied from ducts in the ceiling of the enclosure. The prior art concerns screens made of fabric material. The method of the present invention involves air diffusers made of molded dense mesh. [0003] In general, air diffusers are known to redirect airflow as it enters a room from supply ducts fixed to the ceiling. Without a diffuser, the airflow supplied by the duct flows directly...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/068
CPCY10S454/906F24F13/24F24F13/068
Inventor K·G·克贝尔
Owner SAINT GOBAIN PERFORMANCE PLASTICS CORP