CN215672496U

CN215672496U - Air inlet pipe assembly

Info

Publication number: CN215672496U
Application number: CN202122154344.6U
Authority: CN
Inventors: 黄超; 连源; 周鹏俊
Original assignee: Chongqing Sokon Industry Group Co Ltd
Current assignee: Chongqing Xiaokang Power Co ltd; Seres Group Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-28
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses an air intake pipe assembly, comprising an air intake pipe, a muffler pipe connected to the end of the air intake pipe, and a throttle valve connecting pipe connected to the other end of the air intake pipe; The first muffler sleeve is provided, and the throttle valve connecting pipe is provided with a second muffler sleeve. The intake pipe assembly of the technical solution is provided with muffler sleeves at both ends of the muffler pipe and the throttle valve connecting pipe, which can effectively reduce the intake noise The reduction of the noise has been optimized, and the noise has been weakened many times through the multiple muffler cavity structures set in the muffler sleeve, the intake pipe assembly has been significantly improved in the high frequency band, and the NVH performance has been improved.

Description

Air inlet pipe assembly

Technical Field

The utility model relates to the field of automobile parts, in particular to an air inlet pipe assembly.

Background

The air inlet pipe assembly is used for connecting the supercharger and the throttle valve, plays a role in conveying high-pressure air inlet, and is additionally provided with the silencing system in the air inlet system, so that noise generated during the running of the supercharger is eliminated, and the acoustic quality of the whole vehicle can be improved. The traditional air intake system adopts a silencing structure, can only eliminate certain narrow-band noise, and cannot achieve a good effect of eliminating broadband noise generated by the operation of a supercharger.

For a supercharged engine, due to the operation of a supercharger, along with the increase of the intake pressure and the enhancement of intake noise, the NVH performance of the whole vehicle is seriously influenced.

Therefore, to solve the above problems, there is a need for an intake pipe assembly that solves the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, this technical scheme's air intake pipe subassembly all sets up the amortization cover through at amortization pipe and throttle valve connecting pipe both ends, and the effectual reduction to the air intake noise has realized optimizing, through a plurality of amortization cavity structures that set up in the amortization cover for the noise is weakened many times, and the air intake pipe subassembly has obvious improvement in the high frequency section, and the NVH performance is promoted.

An air inlet pipe assembly comprises an air inlet pipe, a silencing pipe connected and arranged at the end part of the air inlet pipe and a throttle valve connecting pipe connected and arranged at the other end of the air inlet pipe; the air damper is characterized in that a first silencing sleeve for air inlet silencing is arranged on the silencing pipe, and a second silencing sleeve is arranged on the throttle connecting pipe.

Further, the first silencing sleeve is sleeved outside the silencing pipe, a plurality of silencing chambers are continuously arranged in the first silencing sleeve along the axis direction, and a plurality of silencing holes communicated with the silencing chambers are formed in the silencing pipe.

Further, the plurality of silencing chambers comprise a first chamber, a second chamber, a third chamber and a fourth chamber which are sequentially arranged from top to bottom; the cross sections of the four chambers are in a trapezoidal structure along the axial direction, and the volumes of the four chambers are gradually increased from top to bottom.

Further, the muffling holes are uniformly arranged along the circumferential direction of the muffling pipe, and the distribution density of the muffling holes is gradually increased from top to bottom.

Furthermore, the second silencing sleeve is sleeved on the throttle connecting pipe, and a plurality of cavities are formed in the second silencing sleeve.

Further, the plurality of cavities comprise a first cavity, a second cavity and a third cavity which are sequentially arranged in the second silencing sleeve; the third cavity bends and extends to the end part of the throttle connecting pipe.

Furthermore, the third cavity is provided with an opening for communicating with a throttle connecting pipe.

Furthermore, a high-pressure desorption pipe joint is arranged on the air inlet pipe, and a supercharger joint is arranged at the end part of the silencing pipe.

The utility model has the beneficial effects that: this technical scheme's intake pipe subassembly through all setting up the amortization cover at amortization pipe and throttle valve connecting pipe both ends, and the effectual reduction to the air intake noise has realized optimizing, through a plurality of amortization cavity structures that set up in the amortization cover for the noise is weakened many times, and intake pipe subassembly has obvious improvement in the high frequency band, and the NVH performance obtains promoting.

Drawings

The utility model is further described below with reference to the following figures and examples:

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

FIG. 2 is a cross-sectional view of a first acoustic sleeve according to the present invention.

Detailed Description

FIG. 1 is a schematic view of the overall structure of the present invention; FIG. 2 is a cross-sectional view of a first acoustic sleeve; as shown in the figure, the air inlet pipe assembly comprises an air inlet pipe 3, a silencing pipe 2 connected and arranged at the end part of the air inlet pipe, and a throttle valve connecting pipe 6 connected and arranged at the other end of the air inlet pipe; the silencer is characterized in that a first silencer sleeve 2 used for air inlet silencing is arranged on the silencing pipe, and a second silencer sleeve 5 is arranged on the throttle connecting pipe. This technical scheme's intake pipe subassembly through all setting up the amortization cover at amortization pipe and throttle valve connecting pipe both ends, and the effectual reduction to the air intake noise has realized optimizing, through a plurality of amortization cavity structures that set up in the amortization cover for the noise is weakened many times, and intake pipe subassembly has obvious improvement in the high frequency band, and the NVH performance obtains promoting.

In this embodiment, the first muffling sleeve 2 is sleeved outside the muffling pipe, a plurality of muffling chambers are continuously arranged in the first muffling sleeve 2 along the axial direction, and a plurality of muffling holes 26 for communicating with the muffling chambers are formed in the muffling pipe. First amortization cover and second amortization cover all can adopt silica gel or other suitable materials to make, and the effectual amortization many times that forms of a plurality of amortization cavities on first amortization cover 2 improves the noise cancelling effect of amortization cover.

In this embodiment, the multiple sound-deadening chambers include a chamber 21, two chambers 22, three chambers 23, and four chambers 24, which are arranged in sequence from top to bottom; the cross sections of the four chambers are in a trapezoidal structure along the axial direction, and the volumes of the four chambers are gradually increased from top to bottom. The four chambers are arranged along the axial direction (namely the vertical direction in fig. 2), the volumes of the four chambers are gradually increased, the air inlet end is arranged at the lowest part, the volume of the fourth chamber is the largest, the first absorption is effectively formed, the volume is gradually reduced from bottom to top, the residual absorption work is correspondingly completed by the chamber with the smaller volume, and the overall noise is reduced to the minimum through multiple times of effective absorption, so that the NVH performance of the product is improved.

In this embodiment, the muffling holes 26 are uniformly arranged along the circumferential direction of the muffling pipe, and the distribution density of the muffling holes gradually increases from top to bottom. The arrangement of the silencing holes also adopts a step arrangement mode, namely the larger the volume of the chamber is, the more the silencing holes are arranged, and further effective noise absorption is formed.

In this embodiment, the second silencing cover 5 is sleeved on the throttle connecting pipe 6, and a plurality of cavities are formed on the second silencing cover. A plurality of cavity structures are formed on the second silencing sleeve and used for further absorbing noise, and the air inlet pipe assembly absorbs noise twice from head to tail, so that the performance of the product is improved.

In this embodiment, the plurality of cavities includes a first cavity, a second cavity, and a third cavity 54 sequentially disposed within the second sound damping sleeve; the third cavity 54 is bent over and extends to the end of the throttle connector. The third cavity is of a bent structure, positioning and installation are achieved by matching with a throttle connecting pipe conveniently, and the silencing effect of a product is improved conveniently by adopting a silencing mode with a plurality of cavities.

In this embodiment, the third cavity 54 is provided with an opening 51 for communicating with a throttle connecting pipe, and the throttle connecting pipe is correspondingly provided with a silencing hole 52 for achieving silencing cooperation between the throttle connecting pipe and the throttle connecting pipe.

In this embodiment, be provided with high pressure desorption union coupling 4 on the intake pipe, the amortization pipe tip is provided with booster joint 1. The high-pressure desorption pipe joint 4 and the supercharger joint 1 are convenient to be installed in a matching way with other components.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. An air inlet pipe assembly, characterized in that: comprises an air inlet pipe, a silencing pipe connected and arranged at the end part of the air inlet pipe and a throttle connecting pipe connected and arranged at the other end of the air inlet pipe; the air damper is characterized in that a first silencing sleeve for air inlet silencing is arranged on the silencing pipe, and a second silencing sleeve is arranged on the throttle connecting pipe.

2. The intake air duct assembly of claim 1, wherein: the first silencing sleeve is sleeved on the silencing pipe in an sleeved mode, a plurality of silencing chambers are continuously arranged in the first silencing sleeve along the axis direction, and a plurality of silencing holes used for being communicated with the silencing chambers are formed in the silencing pipe.

3. The intake air duct assembly of claim 2, wherein: the plurality of silencing chambers comprise a first chamber, a second chamber, a third chamber and a fourth chamber which are arranged from top to bottom in sequence; the cross sections of the four chambers are in a trapezoidal structure along the axial direction, and the volumes of the four chambers are gradually increased from top to bottom.

4. The intake air duct assembly of claim 3, wherein: the muffling holes are uniformly arranged along the circumferential direction of the muffling pipe, and the distribution density of the muffling holes is gradually increased from top to bottom.

5. The intake air duct assembly of claim 1, wherein: the second silencing sleeve is sleeved on the throttle connecting pipe, and a plurality of cavities are formed in the second silencing sleeve.

6. The intake air duct assembly of claim 5, wherein: the plurality of cavities comprise a first cavity, a second cavity and a third cavity which are sequentially arranged in the second silencing sleeve; the third cavity bends and extends to the end part of the throttle connecting pipe.

7. The intake air duct assembly of claim 6, wherein: and the third cavity is provided with an opening for communicating with a throttle connecting pipe.

8. The intake air duct assembly of claim 7, wherein: the air inlet pipe is provided with a high-pressure desorption pipe joint, and the end part of the silencing pipe is provided with a supercharger joint.