CN202202928U

CN202202928U - Silencer for diesel engine

Info

Publication number: CN202202928U
Application number: CN2011203503945U
Authority: CN
Inventors: 林金松; 桑华东
Original assignee: Zhejiang Jin Fei Vehicle Body Fittings Manufacturing Co Ltd
Current assignee: Zhejiang Jin Fei Vehicle Body Fittings Manufacturing Co Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-04-25
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a silencer for a diesel engine, comprising a silencer shell; the silencer shell is formed by an outer wall and an inner cavity, an air inlet and an air exhaust port which are communicated with the inner cavity of the silencer are arranged on the outer wall of the silencer, the silencer shell is divided into a first expanding chamber, a second expanding chamber and a third expanding chamber by a partition plate, the third expanding chamber is arranged between the first expanding chamber and the second expanding chamber, the first expanding chamber is communicated with the air inlet of the silencer shell, and the second expanding chamber is communicated with the air exhaust port of the silencer shell. By adopting the structure, the silencer is connected with the diesel engine, the noise generated by running of the diesel engine can enter through the air inlet of the silencer shell and is reduced by a plurality of expanding chambers, and then the decibel value of the noise from the air exhaust port of the silencer shell is greatly reduced, so as to effectively reduce the effect of the noise generated by running of the diesel engine on the neighboring environments and working personnel.

Description

Diesel engine silencer

Technical field

The utility model relates to a kind of silencing apparatus, is specifically related to a kind of used for diesel engine silencing apparatus.

Background technique

At present; No matter the high-power diesel engine that use in oil field, mine etc., work-yard are in the city or in the open air, during the DENG running; The noise that produces is up to more than 110 decibels; The noise pollution that it causes, worker, the resident around not only making can not get having a rest for a long time, simultaneously also severe impairment staff's physical and mental health.

Summary of the invention

To the deficiency of existing technology, the utility model provides a kind of silencing apparatus that is used on the DENG, no longer produces noise in the time of making DENG work.

For realizing above-mentioned purpose; The utility model provides a kind of diesel engine silencer, comprises suppressor case, and described suppressor case is made up of outer wall and inner chamber; The outer wall of silencing apparatus is provided with suction port and the relief opening that is communicated with the silencing apparatus inner chamber; Be provided with dividing plate in the inner chamber of said suppressor case, described dividing plate is divided into first expansion chamber, second expansion chamber and the 3rd expansion chamber with the suppressor case inner chamber, and the 3rd expansion chamber is between first expansion chamber and second expansion chamber; First expansion chamber is communicated with suction port on the suppressor case; Second expansion chamber is communicated with relief opening on the suppressor case, and the dividing plate between first expansion chamber and the 3rd expansion chamber is provided with gas port, and the dividing plate between second expansion chamber and the 3rd expansion chamber is provided with gas port.

The beneficial effect of the utility model is: adopt said structure; Above-mentioned silencing apparatus is connected with DENG; The noise that is produced during DENG work gets into from the suction port on the suppressor case, earlier through the first expansion chamber noise reduction, again through the gas port on the dividing plate between first expansion chamber and the 3rd expansion chamber; Get into the 3rd expansion chamber noise reduction; Through the gas port on the dividing plate between second expansion chamber and the 3rd expansion chamber, get into the first expansion chamber noise reduction then, at last the sound of relief opening discharge from the suppressor case; Its decibel value will be reduced greatly, and the noise that has been produced when having reduced DENG work effectively is to surrounding enviroment and staff's influence.

Description of drawings

Fig. 1 is the structural perspective of the utility model;

Fig. 2 is the structure sectional view of the utility model.

Embodiment

Provided a kind of diesel engine silencer like Fig. 1, shown in 2; Comprise suppressor case 1; Described suppressor case 1 is made up of outer wall 11 and inner chamber 12; The outer wall 11 of silencing apparatus is provided with the suction port 13 and relief opening 14 that is communicated with silencing apparatus inner chamber 12; Be provided with dividing plate 2 in the inner chamber 12 of said suppressor case 1, described dividing plate 2 is divided into first expansion chamber 121, second expansion chamber 122 and the 3rd expansion chamber 123, the three expansion chamber 123 between first expansion chamber 121 and second expansion chamber 122 with suppressor case inner chamber 12; First expansion chamber 121 is communicated with suction port 13 on the suppressor case 1; Second expansion chamber 122 is communicated with relief opening 14 on the suppressor case 1, and the dividing plate 2 that the dividing plate 2 between first expansion chamber 121 and the 3rd expansion chamber 123 is provided with between gas port 21, the second expansion chamber 122 and the 3rd expansion chamber 123 is provided with gas port 21.

Adopt said structure; Above-mentioned silencing apparatus is connected with DENG; The noise that is produced during DENG work gets into from the suction port 13 on the suppressor case 1, earlier through 121 noise reductions of first expansion chamber, again through the gas port 21 on the dividing plate 2 between first expansion chamber 121 and the 3rd expansion chamber 123; Get into 123 noise reductions of the 3rd expansion chamber; Through the gas port 21 on the dividing plate 2 between second expansion chamber 122 and the 3rd expansion chamber 123, get into 121 noise reductions of first expansion chamber then, at last the sound of relief opening 14 discharges from the suppressor case 1; Its decibel value will be reduced greatly, and the noise that has been produced when having reduced DENG work effectively is to surrounding enviroment and staff's influence.

Claims

1. diesel engine silencer; Comprise suppressor case; Described suppressor case is made up of outer wall and inner chamber, and the outer wall of silencing apparatus is provided with suction port and the relief opening that is communicated with the silencing apparatus inner chamber, it is characterized in that: be provided with dividing plate in the inner chamber of said suppressor case; Described dividing plate is divided into first expansion chamber, second expansion chamber and the 3rd expansion chamber with the suppressor case inner chamber; The 3rd expansion chamber is between first expansion chamber and second expansion chamber, and first expansion chamber is communicated with suction port on the suppressor case, and second expansion chamber is communicated with relief opening on the suppressor case; Dividing plate between first expansion chamber and the 3rd expansion chamber is provided with gas port, and the dividing plate between second expansion chamber and the 3rd expansion chamber is provided with gas port.