CN202250306U

CN202250306U - Silencer for diesel engine

Info

Publication number: CN202250306U
Application number: CN2011203503979U
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: 2012-05-30
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a silencer for a diesel engine. The silencer comprises a silencer casing, an air inlet straight pipe, an exhaust bent pipe and a separation plate, wherein the separation plate is arranged on an inner cavity of the silencer casing, in addition, the inner cavity of the silencer casing is divided into a plurality of expansion chambers, the air inlet straight pipe is communicated with one expansion chamber, the exhaust bent pipe is communicated with the other expansion chamber, and an air passing straight pipe is arranged between the expansion chambers. When the structure is adopted, the silencer is connected with the diesel engine, the noise generated when the diesel engine works enters the inner cavity of the silencer casing through the air inlet straight pipe for silencing through the expansion chambers, finally, the decibel of the sound sent out from the exhaust bent pipe is greatly reduced, and the influence of the noise generated when the diesel engine works on ambient environment and workers is effectively reduced.

Description

A kind of used for diesel engine silencing apparatus

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 used for diesel engine silencing apparatus, comprises suppressor case, air inlet straight tube, exhaust elbow, dividing plate, and described dividing plate is loaded on the suppressor case inner chamber; And the suppressor case inner chamber is divided into several expansion chamber; The air inlet straight tube is communicated with one of them expansion chamber, and exhaust elbow is communicated with another expansion chamber, and expansion chamber was provided with the gas straight tube each other.

The quantity that the utility model can further be set to said dividing plate is two or more than two, and the expansion chamber of being cut apart formation by dividing plate is more than three or three.

The end that the utility model also can further be set to said exhaust elbow extends in the suppressor case inner chamber, and several expansion chamber in the suppressor case inner chamber all are communicated with exhaust elbow.

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 the suppressor case inner chamber through the air inlet straight tube, through several expansion chamber noise reductions, and the sound of discharging from exhaust elbow at last; Its decibel 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 structure sectional view of the utility model.

Embodiment

As shown in Figure 1ly provided a kind of used for diesel engine silencing apparatus; Comprise suppressor case 1, air inlet straight tube 2, exhaust elbow 3; Said suppressor case 1 inner chamber is provided with two dividing plates 4; Described two dividing plates 4 are divided into first expansion chamber 11, second expansion chamber 12 and the 3rd expansion chamber 13 with suppressor case 1 inner chamber; Described air inlet straight tube 2 is communicated with first expansion chamber 11; Between first expansion chamber 11 and second expansion chamber 12, be equipped with gas straight tube 5 between first expansion chamber 11 and the 3rd expansion chamber 13, an end of said exhaust elbow 3 extends in suppressor case 1 inner chamber, and first expansion chamber 11, second expansion chamber 12 and the 3rd expansion chamber 13 in suppressor case 1 inner chamber all are communicated with exhaust elbow 3.

Adopt said structure; Above-mentioned silencing apparatus is connected with DENG; The noise that is produced during DENG work gets into suppressor case 1 inner chamber through air inlet straight tube 2, through several expansion chamber noise reductions, and the sound of discharging from exhaust elbow 3 at last; Its decibel 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. used for diesel engine silencing apparatus; It is characterized in that: comprise suppressor case, air inlet straight tube, exhaust elbow, dividing plate; Described dividing plate is loaded on the suppressor case inner chamber, and the suppressor case inner chamber is divided into several expansion chamber, and the air inlet straight tube is communicated with one of them expansion chamber; Exhaust elbow is communicated with another expansion chamber, and expansion chamber was provided with the gas straight tube each other.

2. a kind of used for diesel engine silencing apparatus according to claim 1 is characterized in that: the quantity of said dividing plate is two or more than two, and the expansion chamber of being cut apart formation by dividing plate is more than three or three.

3. a kind of used for diesel engine silencing apparatus according to claim 1 and 2 is characterized in that: an end of said exhaust elbow extends in the suppressor case inner chamber, and several expansion chamber in the suppressor case inner chamber all are communicated with exhaust elbow.