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

Silencer wind scooper for ventilator

A muffler and wind guide cover technology, which is applied in the direction of machines/engines, noise reduction devices, mechanical equipment, etc., can solve the problems of inconspicuous sound insulation effect, and achieve the effect of simple structure, reliable use, and improved comfort

Pending Publication Date: 2020-01-31
CHONGQING ZONGSHEN GENERAL POWER MACHINE
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To solve this problem, a common solution is to paste sound-absorbing and heat-insulating cotton on the inner or outer wall of the muffler, but the sound insulation effect is not obvious

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
  • Silencer wind scooper for ventilator
  • Silencer wind scooper for ventilator
  • Silencer wind scooper for ventilator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as figure 1 , 2 . As described in 3, a muffler air guide cover for a general machine, comprising a muffler air guide cover body 2, a muffler body 1 is arranged in the inner cavity of the muffler air guide cover body 2, and it is characterized in that: the muffler air guide cover A plurality of sound-absorbing holes 3 are provided on the cover body 2 , and sound-absorbing cotton 4 covering the area of ​​the sound-absorbing holes 3 is arranged on the outer wall or the inner wall of the muffler air guide body 2 and at the sound-absorbing holes 3 .

[0021] It is further described that the muffler hole 3 is located on the muffler windshield body 2 and is close to the muffler body 1; the proximity mentioned here is the closest to the muffler body 1 relative to other areas.

[0022] In the present invention, the diameter of each silencer hole 3 is 5mm-12mm.

[0023] In order to further increase the noise reduction effect, the opening area of ​​the muffler hole...

Embodiment 2

[0025] Embodiment 2: as Figure 4 , 5 As shown in , 6, the sound-absorbing cotton 4 is arranged on the outer wall of the muffler wind guide body 2, and the shell 5 covering the sound-absorbing cotton 4 and fixed on the muffler body 1 is arranged outside the sound-absorbing cotton 4.

[0026] Since the sound-absorbing cotton 4 has a certain thickness and density, the muffler air guide body 2 after hollowing out still has the function of heat insulation, which can prevent the hot cooling air around the engine from spreading to the area between the muffler air guide body 2 and the outer cover of the complete machine. Avoid the increase of the air temperature in the inner space of the casing of the generator set, which will affect the performance; at the same time, the setting of the casing 5 completely isolates the heat of the muffler body 1 from being transmitted outward through the cooling holes.

[0027] In the semi-anechoic laboratory, use the LMS noise test and analysis sys...

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 silencer wind scooper for a ventilator. The silencer wind scooper comprises a silencer wind scooper body (2); a silencer body (1) is arranged in an inner cavity of the silencer wind scooper body (2); a plurality of silencing holes (3) are formed in the silencer wind scooper body (2); and sound-absorbing cotton (4) is arranged on the outer wall or the inner wall of the silencer wind scooper body (2) and is positioned at the silencing holes (3). The silencer wind scooper has the advantages of being simple in structure, reliable to use, and low in cost, and by the adoption of the silencer wind scooper, high-frequency noise generated by high-speed airflow in the silencer and medium-high frequency noise generated on the surface in silencer vibration are radiated and then most of the noise is absorbed by the fixed sound-absorbing cotton, so that the noise reduction effect is achieved, and the comfort of a user is improved.

Description

technical field [0001] The invention relates to a general engine, in particular to a muffler air guide cover for the general engine. Background technique [0002] With the development of general engine technology, the focus of users on engines has gradually shifted from power performance to use comfort, such as noise, vibration and human-computer interaction, among which noise is one of the important factors affecting use comfort. Noise sources are mainly divided into intake noise, exhaust noise and mechanical noise; due to the development of exhaust muffler technology in recent years, great progress has been made in the noise reduction of exhaust noise caused by mufflers, but the reduction of muffler covering parts Noise is of less concern. [0003] For the general machine, the common structure of the whole machine from the inside to the outside is the engine (including the muffler) - the wind guide cover - the whole machine cover. The inner and outer surfaces of the comm...

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): F01N13/14F01N1/10F01N1/02
CPCF01N13/007F01N13/14F01N1/10F01N1/082F01N1/023F01N2210/04
Inventor 陈旭东朱士凯
Owner CHONGQING ZONGSHEN GENERAL POWER MACHINE