CN209244637U - A kind of muffler for diesel engine - Google Patents

Abstract

The utility model discloses a kind of muffler for diesel engine of Diesel Engine Technique Field, including shell, there are two air inlets for one end setting of the shell, two air inlets protrude into enclosure interior by air inlet pipe, the air inlet pipe right end is communicated with hush pipe, the hush pipe is corrugated tube, filter screen is provided in the air inlet pipe, bloop is provided on the outer wall of the hush pipe, the right end of two hush pipes is connected to by connecting tube with silencing cavity, noise reduction filler is provided in the silencing cavity, the right end of the silencing cavity is connected with air outlet section.The utility model is designed reasonably, it is novel, by the way that corrugated tube is arranged in shell, so that high-speed gas is lost by the long range of corrugated tube, the generation of noise is greatly reduced, and by the way that venthole is arranged in air outlet section, and the baffle plate that is staggered in venthole, gas generates cushion effect by baffle plate, can absorb gas bring energy, further strengthen device erasure effect.

Description

A kind of muffler for diesel engine

Technical field

The utility model discloses a kind of muffler for diesel engine, specially Diesel Engine Technique Field.

Background technique

Noise has become one of the three big public hazards for threatening human survival, with the development of industrial and agricultural production, China's engineering machine Tool, agricultural machinery ownership increase sharply, and while improving the production efficiency, caused noise problem is got worse, domestic Diesel engine is made a world of difference with automobile engine again in the control of noise, so the noise of diesel engine is quite big, especially in population The various engineering machinery of construction are carried out in intensive city, noise hazard is quite serious, existing muffler for diesel engine Inside noise reduction shell be mostly plane, do not form certain radian, buffer function do not had to vibration, erasure effect is bad.For This, we have proposed a kind of muffler for diesel engine to come into operation, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of muffler for diesel engine, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of muffler for diesel engine, including shell, There are two air inlet, two air inlets protrude into enclosure interior, the air inlet by air inlet pipe for one end setting of the shell Pipe right end is communicated with hush pipe, and the hush pipe is corrugated tube, is provided with filter screen in the air inlet pipe, the hush pipe it is outer Bloop is provided on wall, the right end of two hush pipes is connected to by connecting tube with silencing cavity, setting in the silencing cavity There is noise reduction filler, the right end of the silencing cavity is connected with air outlet section, and venthole, the outlet are evenly arranged in the air outlet section Hole is connected to silencing cavity.

Preferably, the upper and lower ends of the venthole inner wall are staggeredly equipped with baffle plate.

Preferably, stomata is provided on the baffle plate.

Preferably, the housing exterior walls are provided with protective layer.

Preferably, the noise reduction filler is basalt cotton.

Compared with prior art, the utility model has the beneficial effects that by the way that corrugated tube is arranged in shell, so that high speed Gas is lost by the long range of corrugated tube, greatly reduces the generation of noise, and by the way that venthole is arranged in air outlet section, and Be staggered baffle plate in venthole, and gas generates cushion effect by baffle plate, can absorb gas bring energy, further Stiffening device erasure effect, the present apparatus pass through the double action of corrugated tube and baffle plate, so that device is imitated with stronger noise reduction Fruit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model venthole.

In figure: 1- shell；2- air inlet；3- air inlet pipe；4- hush pipe；5- filter screen；6- bloop；7- connecting tube；8- Silencing cavity；9- noise reduction filler；10- air outlet section；11- venthole；12- baffle plate；13- stomata；14- protective layer.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of muffler for diesel engine, including shell 1, institute One end setting of shell 1 is stated there are two air inlet 2, two air inlets 2 are protruded into inside shell 1 by air inlet pipe 3, it is described into 3 right end of tracheae is communicated with hush pipe 4, and the hush pipe 4 is corrugated tube, is provided with filter screen 5 in the air inlet pipe 3, described to disappear Bloop 6 is provided on the outer wall of sound tube 4, the right end of two hush pipes 4 is connected to by connecting tube 7 with silencing cavity 8, described Noise reduction filler 9 is provided in silencing cavity 8, the right end of the silencing cavity 8 is connected with air outlet section 10, uniformly sets in the air outlet section 10 It is equipped with venthole 11, the venthole 11 is connected to silencing cavity 8, and the upper and lower ends of 11 inner wall of venthole are staggeredly equipped with folding Flowing plate 12 is provided with stomata 13 on the baffle plate 12, hands over by the way that venthole 11 is arranged in air outlet section 10, and in venthole 11 Mistake setting baffle plate 12, gas generate cushion effect by baffle plate 12, can absorb gas bring energy, further strengthen dress Erasure effect is set, 1 outer wall of shell is provided with protective layer 14, enhances the structural strength of shell, improve the service life of device, The noise reduction filler 9 is basalt cotton, can absorb vibration buffering sound wave.

Working principle: when work, pulse gas is entered in shell 1 by air inlet 2, by the way that ripple is arranged in shell 1 The hush pipe 4 of shape greatly reduces the generation of noise so that high-speed gas is lost by the long range of hush pipe 4, and by Venthole 11, and the baffle plate 12 that is staggered in venthole 11 are set in air outlet section 10, and gas generates buffering by baffle plate 12 Power can absorb gas bring energy, further strengthen device erasure effect, and the present apparatus passes through undulatory 4 He of hush pipe The double action of baffle plate 12, so that device has stronger erasure effect.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of muffler for diesel engine, including shell (1), it is characterised in that: there are two air inlets for one end setting of the shell (1) Mouth (2), two air inlets (2) protrude into shell (1) inside by air inlet pipe (3), and air inlet pipe (3) right end, which is communicated with, to disappear Sound tube (4), the hush pipe (4) are corrugated tube, are provided with filter screen (5) in the air inlet pipe (3), the hush pipe (4) It is provided on outer wall bloop (6), the right end of two hush pipes (4) is connected to by connecting tube (7) with silencing cavity (8), institute It states and is provided with noise reduction filler (9) in silencing cavity (8), the right end of the silencing cavity (8) is connected with air outlet section (10), the air outlet section (10) it is evenly arranged with venthole (11) in, the venthole (11) is connected to silencing cavity (8).

2. a kind of muffler for diesel engine according to claim 1, it is characterised in that: above and below venthole (11) inner wall Both ends are staggeredly equipped with baffle plate (12).

3. a kind of muffler for diesel engine according to claim 2, it is characterised in that: be provided with gas on the baffle plate (12) Hole (13).

4. a kind of muffler for diesel engine according to claim 1, it is characterised in that: shell (1) outer wall is provided with anti- Sheath (14).

5. a kind of muffler for diesel engine according to claim 1, it is characterised in that: the noise reduction filler (9) is basalt Cotton.