CN110985452A

CN110985452A - Silencer for air compression pipe of automobile turbocharger

Info

Publication number: CN110985452A
Application number: CN201911383948.9A
Authority: CN
Inventors: 蔡文国; 董明; 郝永刚
Original assignee: Hanteng Automobile Co Ltd
Current assignee: Hanteng Automobile Co Ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-04-10

Abstract

The invention discloses an automobile turbocharger air compressing pipe silencer which comprises an air compressing pipe body, wherein a first silencing pipe, a second silencing pipe and a third silencing pipe are welded on the air compressing pipe body in a thermoplastic manner; the second connecting port is in threaded connection with an air outlet, so that the second connecting port can be conveniently mounted on air compression ends of various types of air compressors; the structural pipe diameter is reasonably designed, and the flow field quantity requirement of an air inlet system is not influenced; the structure can adopt PP, PE and other materials, and the manufacture and the assembly are simple; the air inlet is sleeved with a first sealing rib, a second sealing rib and a third sealing rib, the air outlet is sleeved with the same first sealing rib, the same second sealing rib and the same third sealing rib, the structure fully considers the sealing structure, and the air inlet sealing structure is safe, reliable, low in cost and suitable for marketization.

Description

Silencer for air compression pipe of automobile turbocharger

Technical Field

The invention belongs to the technical field of air compression pipe silencer equipment, and particularly relates to an automobile turbocharger air compression pipe silencer.

Background

Automobile turbocharger compressor side noise has become a major source of indoor noise, mainly from compressor side tube internal noise radiation. The invention can effectively restrain the noise on the air compression side of the turbocharger.

Regarding turbochargers mufflers, mainly used to solve the noise caused by turbocharger rotor imbalance, such as CN201720495107.7, CN201620616579.9, CN201520345009.6, CN201320340651.6 and CN 201520344857.5. Among them, CN201720495107.7 is a bent pipe muffler with an inner pipe with small holes, which has a large volume and is not easy to be installed in an engine compartment; CN201620616579.9 proposes a muffler with inner pipe having multiple rows of small holes, in which a cavity between the inner pipe and the outer pipe is filled with sound-absorbing material, which has a risk of causing pollution to the combustion chamber of the engine due to durability; CN201520345009.6, which proposes a sound-damping structure integrated on a turbocharger, which is not favorable for cost control and platformization requirements of a host plant; CN201320340651.6 proposes a multi-cavity muffler with multiple holes on the inner tube, which is mainly used to solve the problem of high frequency noise; CN201520344857.5 proposes a structure designed by using the principle of a wave tube and an expansion cavity, which is relatively complex and the volume of the muffler is large.

The existing silencer has a large structure, is mostly in a round pipe shape, is not favorable for arrangement and installation, and influences the flow field distribution of an air inlet system of a power assembly. The invention aims to overcome the defects and provide the silencer for the pressure air pipe of the turbocharger.

Disclosure of Invention

The invention aims to provide a silencer for a pressure air pipe of an automobile turbocharger, and aims to solve the problems that the existing silencer is large in structure, is mostly in a round pipe shape, is not beneficial to arrangement and installation, and influences the flow field distribution of an air inlet system of a power assembly.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile turbocharger muffler, includes the muffler body, thermoplastic welding has first hush pipe, second hush pipe and third hush pipe on the muffler body, be provided with first connector and second connector on the muffler body, threaded connection has the air inlet on the first connector, threaded connection has the gas outlet on the second connector, the cover is equipped with first sealed muscle, the sealed muscle of second and the sealed muscle of third on the air inlet, the cover is equipped with the sealed muscle of the same first sealed muscle of second and the sealed muscle of third on the gas outlet, be provided with interior welding face, outer welding face and main welding face on the first hush pipe.

Preferably, the welding surfaces of the air pressing pipe body and the first, second and third muffling pipes are divided into an inner welding surface, an outer welding surface and a main welding surface, and the main welding surfaces are interfered by 2.5 mm.

Preferably, the lengths of the first silencing pipe, the second silencing pipe and the third silencing pipe are 30-90 mm.

Preferably, be equipped with first sealed muscle, the sealed muscle of second and the sealed muscle of third on the air inlet at least, be equipped with first sealed muscle, the sealed muscle of second and the sealed muscle of third on the gas outlet equally at least.

Preferably, the air compressing pipe body is a plastic air compressing pipe, and the first silencing pipe, the second silencing pipe and the third silencing pipe are all plastic silencing pipes.

Preferably, the first sealing rib, the second sealing rib and the third sealing rib are connected with the same screw in a threaded manner.

Compared with the prior art, the invention has the beneficial effects that:

1. the first silencing pipe, the second silencing pipe and the third silencing pipe are welded on the air pressing pipe body in a thermoplastic mode, and good noise reduction effect can be achieved for broadband noise in a certain range.

2. The air compressor air compression end connector is simple in structure, the first connecting port is in threaded connection with the air inlet, the second connecting port is in threaded connection with the air outlet, and the air compressor air compression end connector is convenient to mount on air compression ends of various types of air compressors.

3. The invention has reasonable design of the structural pipe diameter and does not influence the flow field quantity requirement of the air inlet system.

4. The structure of the invention can adopt PP, PE and other materials, and the manufacture and the assembly are simple.

5. According to the invention, the first sealing rib, the second sealing rib and the third sealing rib are sleeved on the air inlet, and the same first sealing rib, second sealing rib and third sealing rib are sleeved on the air outlet.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view showing the relationship between the air compressing tube body and the air inlet according to the present invention;

FIG. 3 is a diagram of the relationship between the inner bonding surface and the outer bonding surface according to the present invention.

In the figure: 1. a pneumatic tube body; 2. a first silencer duct; 3. a second muffler pipe; 4. a third muffler pipe; 5. an air inlet; 6. an air outlet; 7. an inner solder joint face; 8. a first sealing rib; 9. a second sealing rib; 10. a third sealing rib; 11. a first connection port; 12. a second connection port; 13. a screw; 14. an outer weld face; 15. a primary weld face.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a car turbocharger muffler comprises a muffler body 1, a first silencing pipe 2, a second silencing pipe 3 and a third silencing pipe 4 are welded on the muffler body 1 in a thermoplastic manner, the muffler body 1 is a plastic muffler pipe, the first silencing pipe 2, the second silencing pipe 3 and the third silencing pipe 4 are all plastic silencing pipes, the plastic muffler pipe and the plastic silencing pipes can be made of PP, PE and other materials, the manufacture and assembly are simpler, the welding surfaces of the muffler body 1, the first silencing pipe 2, the second silencing pipe 3 and the third silencing pipe 4 are divided into an inner welding surface 7, an outer welding surface 14 and a main welding surface 15, the interference between the main welding surfaces 15 is 2.5mm, the muffler body 1, the first silencing pipe 2, the second silencing pipe 3 and the third silencing pipe 4 are fixed together more tightly, the lengths of the first silencing pipe 2, the second silencing pipe 3 and the third pipe 4 are 30-90mm, the applicability of the silencing pipe is enabled to be stronger, a first connecting port 11 and a second connecting port 12 are arranged on a gas pressing pipe body 1, a gas inlet 5 is connected to the first connecting port 11 through a thread, a gas outlet 6 is connected to the second connecting port 12 through a thread, a first sealing rib 8, a second sealing rib 9 and a third sealing rib 10 are sleeved on the gas inlet 5, the same first sealing rib 8, the same second sealing rib 9 and the same third sealing rib 10 are sleeved on the gas outlet 6, at least the first sealing rib 8, the second sealing rib 9 and the third sealing rib 10 are arranged on the gas inlet 5, the same screw 13 is connected to the first sealing rib 8, the second sealing rib 9 and the third sealing rib 10 through a thread, the first sealing rib 8, the second sealing rib 9 and the third sealing rib 10 are sleeved on the gas inlet 5 or the gas outlet 6 more firmly, the first silencer duct 2 is provided with an inner weld surface 7, an outer weld surface 14 and a main weld surface 15.

The working principle is as follows: the muffler for the air compression pipe can generate a good noise reduction effect on broadband noise in a certain range; the air compression pipe silencer is simple in structure and convenient to mount on air compression ends of various types of air compressors; the pipe diameter of the structure is reasonable in design, and the flow field quantity requirement of an air inlet system is not influenced; the structure can adopt PP, PE and other materials, and is simple to manufacture and assemble; the structure fully considers the sealing structure, and is safe and reliable; the structure has low cost and is suitable for marketization.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile turbocharger air tube silencer, includes air tube body (1), its characterized in that: the air compressor comprises a compressor body (1), wherein a first silencing pipe (2), a second silencing pipe (3) and a third silencing pipe (4) are welded on the compressor body (1) in a thermoplastic mode, a first connecting port (11) and a second connecting port (12) are arranged on the compressor body (1), an air inlet (5) is connected to the first connecting port (11) in a threaded mode, an air outlet (6) is connected to the second connecting port (12) in a threaded mode, a first sealing rib (8), a second sealing rib (9) and a third sealing rib (10) are sleeved on the air inlet (5), the same first sealing rib (8), the same second sealing rib (9) and the same third sealing rib (10) are sleeved on the air outlet (6), and an inner welding face (7), an outer welding face (14) and a main welding face (15) are arranged on the first silencing pipe (2).

2. The automotive turbocharger air-compressing pipe muffler according to claim 1, characterized in that: the welding surfaces of the air pressing pipe body (1), the first silencing pipe (2), the second silencing pipe (3) and the third silencing pipe (4) are divided into an inner welding surface (7), an outer welding surface (14) and a main welding surface (15), and the main welding surfaces (15) are interfered by 2.5 mm.

3. The automotive turbocharger air-compressing pipe muffler according to claim 1, characterized in that: the lengths of the first silencing pipe (2), the second silencing pipe (3) and the third silencing pipe (4) are 30-90 mm.

4. The automotive turbocharger air-compressing pipe muffler according to claim 1, characterized in that: the air inlet (5) is at least provided with a first sealing rib (8), a second sealing rib (9) and a third sealing rib (10), and the air outlet (6) is also at least provided with a first sealing rib (8), a second sealing rib (9) and a third sealing rib (10).

5. The automotive turbocharger air-compressing pipe muffler according to claim 1, characterized in that: the air compressing pipe body (1) is a plastic air compressing pipe, and the first silencing pipe (2), the second silencing pipe (3) and the third silencing pipe (4) are all plastic silencing pipes.

6. The automotive turbocharger air-compressing pipe muffler according to claim 1, characterized in that: the first sealing rib (8), the second sealing rib (9) and the third sealing rib (10) are connected with the same screw (13) in a threaded mode.