CN212359978U

CN212359978U - Air filter air duct of engine

Info

Publication number: CN212359978U
Application number: CN202021010992.3U
Authority: CN
Inventors: 孙俊太; 盛野; 谭浩鹏; 柴宗超; 薛志超; 王晓礼
Original assignee: Qingdao Rototech Yili Automobile Plastic Product Co ltd
Current assignee: Qingdao Rototech Yili Automobile Plastic Product Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-01-15
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to an automobile parts processing technology field. To the empty filter wind channel equipment of current engine loaded down with trivial details, with high costs, the big problem of noise, the utility model provides an empty filter wind channel of engine: the air filter comprises a U-shaped pipe and a Z-shaped pipe which are formed by nylon rotational molding, wherein both ends of the U-shaped pipe are air inlet ends, a corner formed by the air inlet ends and the U-shaped pipe is a right angle, the inner wall of the U-shaped pipe is arc-shaped, and the air inlet ends are respectively connected with an air outlet of an air filter; the bottom of the U-shaped pipe is provided with an air outlet end which is vertical to the U-shaped pipe and is parallel to the air inlet end, and the inner diameter of the air outlet end is larger than that of the air inlet end; the air outlet end is connected with a Z-shaped pipe through a hose, and the Z-shaped pipe is connected with a supercharger; the two rotating angles at the two ends of the Z-shaped pipe are both 110-160 degrees. The engine air duct is in two sections, is convenient to assemble, and each section can be directly molded, so that the cost is reduced; the air duct joints are reduced, the sealing performance is enhanced, and the noise of the air duct is refracted and absorbed through the corners and obviously attenuated.

Description

Air filter air duct of engine

Technical Field

The utility model relates to an automobile parts processing technology field, concretely relates to empty filter wind channel of engine.

Background

The air duct adopted on the existing automobile engine is a metal air duct, a simple straight air duct and the like can directly use the metal air duct, or the angle between the air ducts is adjusted through a bent hose, and the structure with a plurality of air outlets can only be welded. At present many mouthfuls of car wind channel structure three-section wind channel structure, every 2 air cleaner gas outlets become a gas outlet through perpendicular welded Y shape steel manifold and are connected with the booster, specifically: the double-port end of the Y-shaped steel pipe which is vertically welded is connected with the air outlet of the air filter through a hose, the single-port end of the Y-shaped steel pipe is welded with one steel pipe, and the steel pipe is connected with the other steel pipe through the hose and then connected with the supercharger. The metal vertical welding cost is high, the number of joints is large, the assembly is complicated, the metal air duct with a complex shape is very high in cost and limited in manufacturing; the metal air pipe has stronger sound conduction capability, the metal air pipe has a great weight, the joint is made of two materials of metal and rubber, the joint is not well jointed and is easy to vibrate, and the noise is large.

SUMMERY OF THE UTILITY MODEL

The engine wind channel equipment to current many gas outlets is loaded down with trivial details, and is with high costs, the big problem of noise, the utility model provides an empty filter wind channel of engine.

The utility model discloses an adopt following technical scheme to realize:

an air duct of an engine air filter comprises a U-shaped pipe and a Z-shaped pipe which are formed by nylon rotational molding, wherein both ends of the U-shaped pipe are air inlet ends, a corner formed by the air inlet ends and the U-shaped pipe is a right angle, the inner wall of the U-shaped pipe is arc-shaped, and the air inlet ends are respectively connected with an air outlet of an air filter; the bottom of the U-shaped pipe is provided with an air outlet end which is vertical to the U-shaped pipe and is parallel to the air inlet end, and the inner diameter of the air outlet end is larger than that of the air inlet end; the air outlet end is connected with a Z-shaped pipe through a hose, and the Z-shaped pipe is connected with a supercharger; the two rotating angles at the two ends of the Z-shaped pipe are both 110-160 degrees.

Further, the inner diameter of the air outlet end of the U-shaped pipe is smaller than that of the Z-shaped pipe.

Further, the outer walls of the U-shaped pipe and the Z-shaped pipe are coated with damping materials.

Furthermore, two corner angles at two ends of the Z-shaped pipe are different, the corner angle of one end connected with the air outlet of the U-shaped pipe is 120 degrees, and the corner angle of one end connected with the supercharger is 150 degrees.

The air duct of the engine air filter provided by the utility model is of two sections, the assembly is convenient, each section can be directly molded, and the cost is reduced; the air duct material is an organic polymer material, the sound conduction capability is weak, and the wall thickness of the air duct can be properly increased due to low density, so that the sound absorption function is increased; the improved air duct has less joints, enhanced sealing performance, increased corner, and obviously attenuated noise of the air duct refracted and absorbed by the corner.

Drawings

FIG. 1 is a schematic view of an air duct structure and installation of an air filter of an engine according to an embodiment.

In the above figures: 1. a U-shaped tube; 11 an air inlet end; 12. an air outlet end; 2. a Z-shaped pipe; 3. a hose; 4. an air filter.

Detailed Description

In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Example 1

For a clear understanding of the structure and mounting location of the engine air duct, FIG. 1 provides a schematic illustration of the connection of the engine air filter duct to the air filter. An air filter air duct for an engine is composed of a U-shaped pipe 1 and a Z-shaped pipe 2 which are rotationally molded by nylon 6, the U-shaped pipe 1 and the Z-shaped pipe 2 are connected through a hose 3, and a fastening piece such as a hoop is usually used at the joint for sealing and firmness. The two ends of the U-shaped pipe 1 are air inlet ends 11, corners formed by the air inlet ends 11 and the U-shaped pipe are right angles, the inner walls of the corners are arc-shaped, the air inlet ends 11 are respectively connected with air outlets of the air filter 4, an air outlet end 12 is arranged at the bottom of the U-shaped pipe 1, and the air outlet end 12 is perpendicular to the U-shaped pipe and parallel to the air inlet ends 11. Two air flows flowing out of the two air filters 4 pass through the air inlet end 11 of the U-shaped pipe 1 and then are converged into one air flow by the air outlet end 12, and the inner diameter of the air outlet end 12 is larger than that of the air inlet end 12, so that the noise is favorably reduced.

The air outlet end 12 is connected with the Z-shaped pipe 2 through a hose 3, and the Z-shaped pipe 2 is connected with a supercharger; the two angles of rotation alpha and beta of the two ends of the Z-tube 2 are 120 deg. and 150 deg. respectively, and such a configuration of the angles of rotation also contributes to the attenuation of noise. The metal wind channel before improvement is angle-regulated through the bent hose, and the joint is many, and sealed the degree of difficulty increase, and great wind pressure loss easily appears in joint department, and the noise can not obtain effective control.

Compared with the air duct made of the existing metal material (generally steel or aluminum), the air duct made of nylon by rotational molding has low density, and the density of the air duct material nylon 6 of the utility model is 1.12g/cm³The density of the aluminum alloy is generally 2.5-2.881.12 g/cm³Within the range, the density difference is more than 2 times, the integral dead weight of the air channel can be reduced by about half, and the air channel can be thicker, so that the noise can be absorbed. In addition, plastic materials have lower sound conductivity than metal materials, and have a good sound insulation effect.

The improved air duct is of a two-section structure, the U-shaped pipe mainly collects air flow, and the Z-shaped pipe mainly conducts the air flow. In practical application, the Z-shaped pipe formed by rotational molding can be conveniently adjusted in angle and length, and the cost is low. The air duct before improvement needs welding, is limited in modeling and has multiple assembling procedures.

Example 2

On the basis of the embodiment 1, the inner diameter of the air outlet end 12 of the U-shaped pipe 1 is smaller than that of the Z-shaped pipe 2, so that the noise is further reduced. And damping materials are coated on the outer walls of the U-shaped pipe 1 and the Z-shaped pipe 2, so that vibration noise is reduced.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An air duct of an engine air filter is characterized by comprising a U-shaped pipe and a Z-shaped pipe which are formed by nylon rotational molding, wherein both ends of the U-shaped pipe are air inlet ends, the corner formed by the air inlet end and the U-shaped pipe is a right angle, the inner wall of the U-shaped pipe is arc-shaped, and the air inlet ends are respectively connected with an air outlet of an air filter; the bottom of the U-shaped pipe is provided with an air outlet end which is vertical to the U-shaped pipe and is parallel to the air inlet end, and the inner diameter of the air outlet end is larger than that of the air inlet end; the air outlet end is connected with a Z-shaped pipe through a hose, and the Z-shaped pipe is connected with a supercharger; the two rotating angles at the two ends of the Z-shaped pipe are both 110-160 degrees.

2. The engine air filter duct according to claim 1, wherein the inner diameter of the air outlet end of the U-shaped pipe is smaller than the inner diameter of the Z-shaped pipe.

3. The engine air filter duct of claim 1, wherein the U-shaped tube and the Z-shaped tube are coated on the outer wall with a damping material.

4. The engine air filter duct according to claim 1, wherein the two corners of the Z-shaped pipe at both ends are different in angle, the corner at the end connected to the outlet of the U-shaped pipe is 120 °, and the corner at the end connected to the supercharger is 150 °.