CN205135767U - Booster -type car exhaust muffler device - Google Patents

Abstract

The utility model provides a booster -type car exhaust muffler device, including body, first baffle and second baffle, first baffle, the second baffle from left to right sets gradually in body inside and cuts apart into first space with the body, the three compartment in second space and third space, the upper left end of body is provided with the air inlet, the tapering pipe is installed to the air inlet inboard, a plurality of ventholes have been seted up to the tapering tube -surface, tapering outside of tubes side nestification has an outer tube, the outer tube passes first baffle and enters into in the second space, the outer tube is located to open on the pipe wall in first space and second space has the aperture, the middle part of body is provided with an air duct, the air duct passes first baffle and second baffle respectively. The utility model discloses a set up bushing apparatus outside tapering pipe and in the silencer to all be equipped with a plurality of ventilation hole on the pipe wall of tapering pipe, thereby can change the kinetic energy in the waste gas, acoustic pressure into mechanical shock, heat energy, reach noise cancelling effect.

Description

A kind of supercharged car exhaust silencer device

Technical field

The utility model relates to a kind of automobile muffler, especially relates to a kind of supercharged car exhaust silencer device.

Background technique

Automobile exhaust system refers to the combination from engine exhaust manifold to tailpipe all parts.Generally comprise the parts such as Y-piece, three-element catalytic, flexible pipe, premuffler, rearmounted silencing apparatus, intermediate connection tube, tail pipe, hook, hook vibration isolator, silencing apparatus major function is process waste gas and reduces noise.Silencing apparatus mainly can be divided into resistive and anti-formula two class by noise-cancelling theory.Resistive silencing apparatus is that the acoustic resistance effect utilizing the sound-absorbing material be laid on silencing apparatus air-flow path wall to produce is eliminated the noise.Anti-formula silencing apparatus is the unexpected expansion or the contraction that utilize pipeline section, or utilizes generation acoustic resonance or acoustic interference, makes some specific frequency content in noise be reflected back sound source or is significantly decayed and realize eliminating the noise.

Current automobile exhaust muffler main flow all adopts resistance muffler desing principle, such silencing apparatus structurally have employed resistive material as silica wool class material, but this type of cost of material is higher, be unfavorable for environmental protection again, and also exist all-bottom sound and launch sound heavier etc. defect, therefore need a kind of new principle of more environmental protection and energy saving design could better be satisfied with society and demand.

Summary of the invention

The utility model is the deficiency for above-mentioned technology, a kind of supercharged car exhaust silencer device is provided, by arranging the mutual squeezing action of taper tube and sleeve pipe, the kinetic energy in waste gas and sound pressure energy decay are reduced, reach the energy-absorbing function being similar to and adding resistive material, also there are energy-conserving and environment-protective, effectively can solve low-resistivity material derived all-bottom sound and launch the heavier problem of sound.

The technological scheme that model utility adopts is as follows: a kind of supercharged car exhaust silencer device, comprise body, first dividing plate and second partition, described first dividing plate, second partition is from left to right successively set on body interior and body is divided into the first space, second space and three, the 3rd space compartment, the left upper end of body is provided with suction port, inside suction port, taper tube is installed, taper tube surface offers some air outlet holes, an outer sleeve is nested with outside taper tube, outer sleeve enters in second space through the first dividing plate, and the rearward end of outer sleeve is closed by a sealing cover, the tube wall that outer sleeve is positioned at the first space and second space has aperture, the middle part of body is provided with an air pipe, air pipe is each passed through the first dividing plate and second partition, the bottom righthand side of body is provided with air outlet tube, air outlet tube is each passed through the first dividing plate and second partition, the tube wall that air outlet tube is positioned at second space and the 3rd space all has gas port.

Further, described taper tube front end has cone mouth.

Further, the inlet end of described air pipe is arranged in the first space, and outlet side is arranged in the 3rd space.

Further, the front end of described air outlet tube to be arranged in the first space and by seal cap sealing, the other end of air outlet tube is in communication with the outside.

Further, described first dividing plate is seal dividing plate, and the first dividing plate is by the first space and second space is airtight separates.

Further, described second partition has some perforation.

Compared with prior art, the utility model by arranging a taper tube and an outer sleeve device in silencing apparatus, and multiple breeder tube is equipped with on the tube wall of taper tube, thus the kinetic energy in waste gas, sound pressure energy are changed into mechanical shock, heat energy, reach erasure effect.The utility model can reach and add the energy-absorbing function of resistive material, energy-conserving and environment-protective again, efficiently solves low-resistivity material derived all-bottom sound and launches the heavier problem of sound, can provide a comfortable environment for driver.

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation of supercharged car exhaust silencer device described in the utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually, below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.

As shown in Figure 1, a kind of supercharged car exhaust silencer device, comprise body 1, first dividing plate 2 and second partition 3, described first dividing plate 2, second partition 3 is from left to right successively set on body 1 inside and body 1 is divided into the first space 11, second space 12 and 13 3, the 3rd space compartment, the left upper end of body 1 is provided with suction port 14, taper tube 15 is installed inside suction port 14, taper tube 15 conically, its surface offers some air outlet holes 151, and taper tube 15 front end has cone mouth 152, an outer sleeve 16 is nested with outside taper tube 15, outer sleeve 16 enters in second space 12 through the first dividing plate 2, and the rearward end of outer sleeve 16 is closed by a sealing cover 17, the tube wall that outer sleeve 16 is positioned at the first space 11 and second space 12 has aperture 161, after waste gas enters into taper tube 15 from suction port, the gas part entering taper tube 15 is extruded from the air outlet hole 151 of taper tube 15, another part enters into outer sleeve 16 from cone mouth 152 ejection, enter in the first space 11 and second space 12 respectively from the aperture 161 of outer sleeve 16 again, the middle part of body 1 is provided with an air pipe 18, air pipe 18 is each passed through the first dividing plate 2 and second partition 3, the inlet end of air pipe 18 is arranged in the first space 11, outlet side is arranged in the 3rd space 13, thus the first space 11 is communicated with the 3rd space 13, a part of gas in first space 11 enters in the 3rd space 13 by air pipe 18, the bottom righthand side of body 1 is provided with air outlet tube 19, air outlet tube 15 is each passed through the first dividing plate 2 and second partition 3, the front end of air outlet tube 19 to be arranged in the first space 11 and to be sealed by sealing cover 17, the other end of air outlet tube 19 is in communication with the outside, the tube wall that air outlet tube 19 is positioned at second space 12 and the 3rd space 13 all has gas port 191, gas in second space 12 and the 3rd space 13 enters air outlet tube 19 by gas port 191 and discharges the external world.

Described first dividing plate 2 is seal dividing plate, and the first space 11 is separated with second space 12 is airtight by the first dividing plate 2.

Described second partition 3 has some perforation 31, can be entered in the 3rd space 13 by perforation 31 from the gas part entered in second space 12, then from be positioned at the 3rd space 13 air outlet tube 19 tube wall inlet hole 191 enter air outlet tube 19 and discharge the external world.

Working principle of the present utility model is as follows: the waste gas of motor enters into taper tube 15 through suction port, after air-flow is squeezed, wherein a part is extruded from the air outlet hole 151 of taper tube 15, another part sprays to be formed with outer sleeve 16 from cone mouth 152 and impacts and carry out Conversion of Energy, namely kinetic transformation is vibrations and heat energy, wherein also comprise sound pressure energy, decayed further by the aperture 161 of outer sleeve 16 and shaping is carried out to acoustic pressure wave again, significantly reduce flow velocity and noise, progressively decay through air pipe 18 and second space 12 and second partition 3 again, air is entered through air outlet, finally complete noise reduction sound-deadening process.

The utility model by arranging a taper tube and an outer sleeve device in silencing apparatus, and is equipped with multiple breeder tube on the tube wall of taper tube, thus the kinetic energy in waste gas, sound pressure energy are changed into mechanical shock, heat energy, reaches erasure effect.The utility model can reach and add the energy-absorbing function of resistive material, energy-conserving and environment-protective again, efficiently solves low-resistivity material derived all-bottom sound and launches the heavier problem of sound, can provide a comfortable environment for driver.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (6)

1. a supercharged car exhaust silencer device, comprise body, first dividing plate and second partition, it is characterized in that: described first dividing plate, second partition is from left to right successively set on body interior and body is divided into the first space, second space and three, the 3rd space compartment, the left upper end of body is provided with suction port, inside suction port, taper tube is installed, taper tube surface offers some air outlet holes, an outer sleeve is nested with outside taper tube, outer sleeve enters in second space through the first dividing plate, and the rearward end of outer sleeve is closed by a sealing cover, the tube wall that outer sleeve is positioned at the first space and second space has aperture, the middle part of body is provided with an air pipe, air pipe is each passed through the first dividing plate and second partition, the bottom righthand side of body is provided with air outlet tube, air outlet tube is each passed through the first dividing plate and second partition, the tube wall that air outlet tube is positioned at second space and the 3rd space all has gas port.

2. supercharged car exhaust silencer device according to claim 1, is characterized in that: described taper tube front end has cone mouth.

3. supercharged car exhaust silencer device according to claim 1, is characterized in that: the inlet end of described air pipe is arranged in the first space, and outlet side is arranged in the 3rd space.

4. supercharged car exhaust silencer device according to claim 1, is characterized in that: the front end of described air outlet tube is arranged in the first space and by seal cap sealing, the other end of air outlet tube is in communication with the outside.

5. supercharged car exhaust silencer device according to claim 1, is characterized in that: described first dividing plate is seal dividing plate, and the first dividing plate is by the first space and second space is airtight separates.

6. supercharged car exhaust silencer device according to claim 1, is characterized in that: described second partition has some perforation.