A Shuttle-Type Disc Muffler

A muffler and chip technology, which is applied in the direction of sound-emitting devices and instruments, can solve the problems of unusable mufflers, poor aerodynamic performance compatibility, and large resistance, and achieve the effect of reducing resistance loss

Active Publication Date: 2017-12-26
北京绿创声学工程设计研究院有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The noise reduction performance of the traditional muffler is poorly compatible with the aerodynamic performance, that is, if you want to obtain a large amount of noise reduction, you must lose more resistance to achieve it; if you want to obtain a smaller resistance loss, you must sacrifice greater sound dampening performance
And if a muffler with high noise reduction is installed in the ventilation system, due to poor aerodynamic performance and high resistance, the entire ventilation system cannot operate normally, then this muffler cannot be used.

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
  • A Shuttle-Type Disc Muffler
  • A Shuttle-Type Disc Muffler
  • A Shuttle-Type Disc Muffler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] like figure 1 , figure 2 As shown, the present invention includes a rectangular housing 1, in which several muffler units 2 are equidistantly arranged, and the cross section of each muffler unit 2 along the direction of air flow is shuttle-shaped with two pointed ends and a wide middle.

[0016] In a preferred embodiment, the noise reduction unit 2 includes a perforated protective panel 21 with a shuttle-shaped cross section, and several supports 22 are arranged in the perforated protective panel 21 .

[0017] In a preferred embodiment, the interior of the noise reduction unit 2 can be filled or not filled with resistive sound-absorbing material according to the specific application. Generally, when the perforated protective panel 21 is a microporous plate or an ultra-microporous plate, the interior does not need to be filled with resistive s...

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 relates to a shuttle-type chip muffler, which is characterized in that the muffler comprises a rectangular shell, and several mufflers are arranged at equal intervals inside the shell, and the cross-section of each muffler along the airflow direction is Fusiform with pointed ends and wide middle. In the present invention, a series of narrow and long ventilation paths similar to Venturi tubes are manufactured by changing the traditional muffler with a rectangular cross-section into a shuttle-shaped muffler, so that without changing the flow area, The resistance loss of the air inlet / exhaust port of the muffler is greatly reduced; at the same time, the invention can obtain a noise reduction effect similar to that of the traditional muffler, and solves the problem that the noise reduction effect and the ventilation effect of the traditional sheet type muffler cannot be combined to a certain extent.

Description

technical field [0001] The invention relates to a sound-absorbing structure, in particular to a shuttle-type sheet-type muffler which takes into account both sound-absorbing performance and aerodynamic performance. Background technique [0002] A muffler is a device that allows airflow to pass through smoothly and can effectively reduce noise. In other words, a muffler is an airflow channel with a sound-absorbing lining or a special structure that can effectively reduce noise. It can be seen that, as a series of mufflers, it is necessary to provide two indicators of noise reduction performance and ventilation performance at the same time. Usually, ventilation performance, also called aerodynamic performance, is one of the important indicators for evaluating the performance of mufflers, and it is also a factor that should be fully considered in muffler design. The noise reduction performance of the traditional muffler is poorly compatible with the aerodynamic performance, th...

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 Patents(China)
IPC IPC(8): G10K11/16G10K11/162
Inventor 蒋昭旭刘诗源龚凤海郭宇春
Owner 北京绿创声学工程设计研究院有限公司
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