CN205207019U

CN205207019U - Admission air silencer

Info

Publication number: CN205207019U
Application number: CN201520952723.1U
Authority: CN
Inventors: 王璐; 陈国进; 赵琼; 熊福波
Original assignee: Jiangling Motors Corp Ltd
Current assignee: Jiangling Motors Corp Ltd
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-05-04
Anticipated expiration: 2025-11-26

Abstract

The utility model relates to an air intake system field, concretely relates to admission air silencer, including return bend portion and expansion room and rubber tube, return bend portion feeds through with expansion room and rubber tube in proper order, and return bend portion includes interior return bend and outer return bend, and the return bend is peripheral including the excurvation pipe box dress, and the intermediate layer between interior return bend and the outer return bend is packed has the acoutic fibre board, and the expansion room includes convergent divergent channel and porous pipe, and the convergent divergent channel suit encloses at porous outside of tubes. The tube that the convergent divergent channel enlarges for the diameter size gradually, the tube of porous pipe for seting up a plurality of apertures around the pipe. The utility model has the advantages of all there is good amortization performance in very wide frequency range.

Description

A kind of admission air silencer

Technical field

The utility model relates to gas handling system field, is specifically related to a kind of admission air silencer.

Background technique

Along with present production technology improves, people require automotive performance and travelling comfort requires also more and more higher.NVH also becomes the focus that each manufacturer pays close attention to, and gas handling system is one of topmost noise source of automobile, therefore the baffler being used for abating the noise is the important component part of gas handling system.

Model utility content

The purpose of this utility model is to solve the problem, and provides a kind of admission air silencer.

In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:

A kind of admission air silencer, comprise bent portion and expansion chamber and rubber pipe, bent portion is communicated with successively with expansion chamber and rubber pipe, bent portion comprises interior bend pipe and outer bend pipe, it is peripheral that excurvation pipe box is contained in interior bend pipe, Sandwich filling between interior bend pipe and outer bend pipe has acoutic fibre board, and expansion chamber comprises expanding duct and perforated tube, and expanding duct is sleeved on perforated tube periphery.

Expanding duct is the pipe that diameter dimension expands gradually, and perforated tube is the pipe offering some apertures around pipe.

The beneficial effects of the utility model are: in very wide frequency range, have good performance muffler.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation,

Fig. 2 be the utility model remove expanding duct and outer bend pipe internal structure schematic diagram.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated:

Embodiment: see Fig. 1 and Fig. 2.

A kind of admission air silencer, comprise bent portion and expansion chamber and rubber pipe 3, bent portion is communicated with successively with expansion chamber and rubber pipe, bent portion comprises interior bend pipe 4 and outer bend pipe 1, it is peripheral that outer bend pipe 1 is sleeved on interior bend pipe 4, Sandwich filling between interior bend pipe 4 and outer bend pipe 1 has acoutic fibre board, and expansion chamber comprises expanding duct 2 and perforated tube 5, and it is peripheral that expanding duct 2 is sleeved on perforated tube 5.

The pipe that expanding duct 2 expands gradually for diameter dimension, perforated tube 5 is the pipe offering some apertures around pipe.

The utility model is arranged between air filter and turbosupercharger, is used for improving NVH performance.

What embodiment of the present utility model announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and change, but only otherwise depart from spirit of the present utility model, all in protection domain of the present utility model.

Claims

1. an admission air silencer, comprise bent portion and expansion chamber and rubber pipe, it is characterized in that: bent portion is communicated with successively with expansion chamber and rubber pipe, bent portion comprises interior bend pipe and outer bend pipe, it is peripheral that excurvation pipe box is contained in interior bend pipe, Sandwich filling between interior bend pipe and outer bend pipe has acoutic fibre board, and expansion chamber comprises expanding duct and perforated tube, and expanding duct is sleeved on perforated tube periphery.

2. a kind of admission air silencer according to claim 1, is characterized in that: expanding duct is the pipe that diameter dimension expands gradually, and perforated tube is the pipe offering some apertures around pipe.