CN218760184U

CN218760184U - Air inlet channel for vehicle

Info

Publication number: CN218760184U
Application number: CN202223527477.4U
Authority: CN
Inventors: 周礼凯
Original assignee: Ningbo Rongheng Metal Products Co ltd
Current assignee: Ningbo Rongheng Metal Products Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-03-28
Anticipated expiration: 2032-12-23

Abstract

The application discloses air inlet channel for vehicle belongs to pipeline structure technical field for a vehicle that the noise is littleer is provided, including straight body, the one end of straight body is provided with the loudspeaker pipe end, the other end is provided with flange connection dish, flange connection dish's terminal surface has outstanding embedded pipe end, loudspeaker pipe end and embedded pipe end are by the tip to straight body shrink, the inner wall of loudspeaker pipe end and embedded pipe end is to the smooth transition of inner wall of straight body, the inner wall cross-section molded lines of loudspeaker pipe end is the hyperbola, the inner wall cross-section sinle silk of embedded pipe end is the parabola. The utility model discloses an inner wall of intake end design hyperbola type of air inlet way, for the inner wall of exhaust end design parabola, the air current can not last the compression and applys the effort of rapid change for the inside of air inlet way, and the air current lets the vibration range of pipe wall littleer, and the part of exhaust end extension is difficult for producing the torrent again, no matter be the vibration noise of pipe wall, still the vibration noise of air current itself has all obtained effective suppression.

Description

Air inlet channel for vehicle

Technical Field

The application relates to the technical field of pipeline structures, in particular to an air inlet channel for a vehicle.

Background

The fuel vehicle is powered by mixing and igniting fuel and air in an internal combustion engine, the supply quantity of the fuel is determined by a fuel injector controlled by a computer, the air inflow quantity of the air is determined by the negative pressure of an air inlet port, the conventional fuel vehicle is provided with a supercharger structure for improving the utilization rate of the fuel, although the superchargers are various, the superchargers are most commonly an economical turbocharger which takes tail gas generated by the engine during working as power and improves the air suction speed of an air inlet pipe, the supercharger can generate relatively obvious action only when the rotating speed of the engine is higher, and the air inlet end of the turbocharger is connected with an air inlet structure positioned in front of the engine through a pipeline structure.

The existing air inlet channel is generally in a flaring shape, namely the inner diameter of one end of the air inlet channel is large and is gradually reduced towards one end of an engine, when the engine runs at a high speed, air is quickly and continuously compressed in the air inlet channel, the air can generate a strong reaction force for a pipe wall, the pipe wall vibrates to generate noise, and therefore a driver cabin can be less noisy when the driver cabin is driven violently by arranging soundproof cotton or laminated glass.

Disclosure of Invention

The purpose of the present application is to provide a vehicle air intake duct with less noise.

To achieve the above object, the present application provides an air intake duct for a vehicle: including the straight tube body, the one end of straight tube body is provided with loudspeaker pipe end, the other end is provided with flange connection dish, flange connection dish' S terminal surface has outstanding embedded pipe end, loudspeaker pipe end and embedded pipe end by the tip to the straight tube body shrink, the inner wall of loudspeaker pipe end and embedded pipe end to the smooth transition of inner wall of straight tube body, the inner wall of loudspeaker pipe end is curved surface S, and the cross-section molded lines is the hyperbola, the inner wall of embedded pipe end is curved surface H, and the cross-section sinle silk is the parabola, and the air current passes through the intake duct, smoothly contracts, keeps last expansion, can effectively reduce the production of torrent and vibration on the curve confined surface, therefore can effectively reduce the production of noise, and quiet nature of work is better.

Preferably, the cylindrical side surface of the embedded pipe end is provided with an annular sealing strip clamping groove for restraining the sealing ring structure.

Preferably, the flange connection disc is provided with a plurality of connecting through holes which are annularly and equidistantly distributed around the end of the embedded pipe, and the connecting piece is used for penetrating the whole air inlet channel and the air inlet pipeline of the turbocharger to be stably connected.

Preferably, the lower surface of the straight pipe body is provided with a first side surface extending end, the lower end of the first side surface extending end is provided with a first convection channel communicated with the inner space of the straight pipe body, and the first convection channel is generally connected with an expanded air inlet pipeline so as to increase the air inflow.

Preferably, the front side surface or the rear side surface of the straight pipe body is provided with a second side surface extending end, the end surface of the second side surface extending end is provided with a second convection channel communicated with the inner space of the straight pipe body, and the second convection channel is usually connected with an oxygen supply pipe to replace a turbocharger to improve the power of the engine in the starting stage of violent driving.

Preferably, the first side surface extending end and the second side surface extending end and the straight pipe body are of an integrated structure, the material is uniform, and the structural stability is good.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The hyperbolic inner wall is designed at the air inlet end of the air inlet passage, and the parabolic inner wall is designed at the air outlet end, so that the airflow flowing through the air inlet passage is smoothly converged and then kept unchanged, and finally, the airflow is released and expanded without continuously compressing to apply a rapidly-changing acting force to the interior of the air inlet passage, the vibration amplitude of the pipe wall is smaller due to the airflow, the expanded part of the air outlet end is not easy to generate turbulence, and the vibration noise of the pipe wall and the vibration noise of the airflow are effectively suppressed;

(2) Different expansion connecting ends are arranged on the pipe wall of the air inlet, so that a proper pipeline structure can be added according to the requirement of an actual vehicle to improve the performance of the air inlet, the flexibility of function expansion of the air inlet is higher, and more applicable vehicle objects are provided.

Drawings

Fig. 1 is a schematic perspective view of the air intake duct for a vehicle;

FIG. 2 is a schematic end view of the air intake duct for a vehicle;

FIG. 3 isbase:Sub>A plan sectional view taken along line A-A of FIG. 2 of the air scoop forbase:Sub>A vehicle;

FIG. 4 is a plan sectional view taken at B-B of FIG. 3 of the air scoop for a vehicle;

fig. 5 is a partially enlarged view of the air inlet duct for a vehicle at C in fig. 3.

In the figure: 1. a horn tube end; 2. a flange connecting plate; 201. a connecting through hole; 3. a straight pipe body; 4. a first side extension end; 401. a first convection channel; 5. embedding a pipe end; 501. a sealing strip clamping groove; 6. a second side extension end; 601. a second convection pass; 7. a curved surface S; 8. and (7) a curved surface H.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The vehicle air inlet duct shown in fig. 1-5 comprises a straight tube body 3 of a main body part, one end of the straight tube body 3 is provided with a horn tube end 1, the other end of the straight tube body is provided with a flange connection disc 2, the horn tube end 1 is an air inlet end, the flange connection disc 2 is used for being connected with other pipelines and used as an air outlet end in the air inlet duct, the end face of the flange connection disc 2 is provided with a protruding embedded tube end 5 which is used for being embedded in a matched pipeline to form an inserting connection structure with the inner wall of the pipeline, the cylindrical side face of the embedded tube end 5 is provided with an annular sealing strip clamping groove 501, a sealing ring is arranged on the inner wall, the sealing ring is tightly attached to the sealing strip clamping groove 501 and the inner wall of the matched pipeline after inserting connection, so as to seal a gap between the embedded tube end 5 and the matched pipeline, the flange connection disc 2 is provided with a plurality of connecting through holes 201 which are annularly and equidistantly distributed around the embedded tube end 5, and connecting pieces such as bolts and rivets penetrate to enable the flange connection disc 2 to be fixedly connected with the end of the matched pipeline.

The horn pipe end 1 and the embedded pipe end 5 contract from the end part to the straight pipe body 3, the inner diameter of the longest straight pipe body 3 is not increased, only the inner diameter of a suction end is increased, air inlet efficiency can also be improved, the inner walls of the horn pipe end 1 and the embedded pipe end 5 are in smooth transition to the inner wall of the straight pipe body 3, airflow resistance can be effectively prevented from being increased, the inner wall of the horn pipe end 1 is a curved surface S7, the section molded line is a hyperbolic curve, airflow enters the straight pipe body 3 along the inner wall formed by surrounding of the hyperbolic curve, the size is uniformly and smoothly compressed, air noise can be effectively reduced, the inner wall of the embedded pipe end 5 is a curved surface H8, a section core is a parabola, the caliber of an airflow discharge end is properly increased, the pressure of the airflow entering the matched pipeline can be reduced, and turbulence is not easily formed at the butt joint of the embedded pipe end 5 and the matched pipeline due to the inner wall formed by surrounding of the parabola, so that a pipe fitting is not easy to vibrate, unnecessary noise is generated, and the effect on noise suppression is also achieved.

The lower surface of the straight pipe body 3 is provided with a first side surface extending end 4, the front side surface or the rear side surface of the straight pipe body 3 is provided with a second side surface extending end 6, the first side surface extending end 4 and the second side surface extending end 6 are in an integral structure with the straight pipe body 3, the integral structure can be formed through casting, the manufacture is simple, the output efficiency is high, the material uniformity is good, and the structure stability is high.

The working principle is as follows: the air inlet end and the air outlet end of the air inlet channel both adopt special curve-shaped inner walls, air can flow more smoothly when flowing through, generated vibration is small, noise is small, the side wall of the air inlet channel is provided with a plurality of expansion ports, and pipelines with different functions can be connected according to vehicle requirements, so that air inlet performance is improved.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. An air intake duct for a vehicle, characterized in that: including straight body (3), the one end of straight body (3) is provided with loudspeaker pipe end (1), the other end is provided with flange connection dish (2), the terminal surface of flange connection dish (2) has outstanding embedded pipe end (5), loudspeaker pipe end (1) and embedded pipe end (5) by the tip to straight body (3) shrink, the inner wall of loudspeaker pipe end (1) and embedded pipe end (5) to the smooth transition of inner wall of straight body (3), the inner wall of loudspeaker pipe end (1) is curved surface S (7), and the cross-section molded lines is the hyperbola, the inner wall of embedded pipe end (5) is curved surface H (8), and the cross-section sinle silk is the parabola.

2. The air intake duct for a vehicle according to claim 1, wherein: an annular sealing strip clamping groove (501) is formed in the side face of the cylinder of the embedded pipe end (5).

3. The air intake duct for a vehicle according to claim 2, wherein: and the flange connection disc (2) is provided with a plurality of connection through holes (201) which are annularly and equidistantly distributed around the embedded pipe end (5).

4. The vehicular air intake duct according to any one of claims 1 to 3, characterized in that: the lower surface of the straight pipe body (3) is provided with a first side surface extending end (4), and the lower end of the first side surface extending end (4) is provided with a first convection channel (401) communicated with the inner space of the straight pipe body (3).

5. The air intake duct for a vehicle according to claim 4, wherein: the front side surface or the rear side surface of the straight pipe body (3) is provided with a second side surface extending end (6), and the end surface of the second side surface extending end (6) is provided with a second convection channel (601) communicated with the inner space of the straight pipe body (3).

6. The air intake duct for a vehicle according to claim 5, wherein: the first side surface extending end (4) and the second side surface extending end (6) are of an integrated structure with the straight pipe body (3).