Water prevention and noise reduction air filter

Abstract

The invention discloses a water prevention and noise reduction air filter, comprising a shell, a cover plate, a filter core support, a filter core and an air outlet pipe, wherein, one end of the shell is closed, the other end is opened, and the opened end of the shell is sealed by a cover plate; the air outlet pipe is installed on the cover plate, the filter core is installed on the inner wall ofthe cover plate by the filter core support, the inner chamber of the shell is gradually enlarged from the closed end to the opened end, and the longitudinal section of the inner chamber of the shell comprises an upper sector and a lower isosceles trapezoid; and the isosceles trapezoid is tapered from the top down, a first air inlet opening is arranged on the side wall of one edge of the trapezoidchamber, a second air inlet opening is arranged on the side wall of the other edge of the trapezoid chamber, and the first air inlet opening and the second air inlet opening are staggered up and down. The invention prevents the invasion of water from all directions, without influencing normal air inflow, and can prevent the filter core from contacting water in various rainy or snowy environments or during the rinsing of the motorcycle, thereby guaranteeing the performance and the service life of the filter core; and besides, the invention adopts stratified air inflow, and can effectively reduce noise.

Description

technical field [0001] The invention relates to a motorcycle component, in particular to a waterproof and noise-reducing air filter on the motorcycle. Background technique [0002] The motorcycle engine takes in a large amount of air during its working process. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles enter between the piston and the cylinder, which will cause serious "squeeze the cylinder" phenomenon. The air filter is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air to ensure sufficient and clean air entering the cylinder. The traditional air filter is composed of a shell, a cover plate, a filter holder, a filter element and an air outlet pipe. One end of the shell is open and the other end is closed. An air inlet is opened on the wall of the shell, and the open end of the shell Sealed...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the unreasonable design of the shape of the shell and the position of the air inlet, it is easy to cause water to enter the air filter in the rainy and snowy environment or when washing the motorcycle, so that the foam filter element is soaked in water, thereby reducing the filtration efficiency of the filter element. The cleaning performance shortens the service life of the filter element

[0004] 2. After the air enters the shell through the air inlet, it will be disturbed and collided, which will generate a lot of noise

[0005] 3. The air filter is only fixed to the throttle body through the air outlet pipe and hoop, and the connection is not stable enough. Due to the vibration of the motorcycle, the air filter is prone to shaking and falling off, and the reliability is poor

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