Air inlet component, air filter and motor vehicle

Abstract

The invention relates to an air inlet component, an air filter and a motor vehicle. The air inlet component comprises an air inlet cover used for being arranged on an air filter body and a noise lowering cover used for being arranged on the inner surface of the air inlet cover in a sealed manner, wherein the noise lowering cover is provided with an air passing through hole, and the noise loweringcover, the air passing through hole and the air inlet cover are matched to form a noise lowering structure. Since the noise lowering cover is arranged on the inner surface of the air inlet cover in the sealed manner, the noise lowering cover divides a cavity between the air inlet cover and the air filter body into a first cavity and a second cavity, and the first cavity and the second cavity are in communication through the air passing through hole. Thus, in the air inlet process, the noise lowering structure is formed through cooperation of the noise lowering cover, the air passing through hole and the air inlet cover, the first cavity can effectively absorb pressure waves in the second cavity through the air passing through hole, gas located in the second cavity is sufficiently expandedin time, accordingly, the air absorbing noise can be lowered, and the comfort feeling and experience feeling during vehicle idling can be improved.

Description

technical field [0001] The invention relates to the technical field of motorcycle accessories, in particular to an air intake component, an air filter and a motor vehicle. Background technique [0002] The power system of motor vehicles such as motorcycles is mainly composed of the engine and the intake system connected to the engine. The intake system mainly includes the engine intake pipe, the throttle valve body, the air filter outlet pipe, the air filter body and the air filter intake cover (or Tube). During the intake stroke of the engine, fresh air enters from the air filter intake cover through the above-mentioned components until it enters the cylinder. For the engine air intake system, it is not only required that the air intake resistance should be small to ensure smooth gas flow, but also that the noise reduction and waterproof and dustproof functions should be good. In the air intake system, the air filter not only has the function of filtering air and preventi...

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Problems solved by technology

[0003] However, due to the limitations of the overall layout, performance and appearance of the motorcycle, the structure of the air filter body is complex and irregular, and it is easy to form a narrow flow rate dead zone in the air filter cavity, and it is also necessary to consider improving the air filter inlet. The internal dust-proof and water-resistant effects restrict the pipeline direction of the air filter intake system. At this time, once the air intake of the dirty cavity is designed in a narrow space, the high-speed airflow from After the intake cover of the air filter is sucked into the dirty cavity, due to the narrow space, the ratio of the expansion area of ​​the gas at the intake cross-sectional area of ​​the air filter intake cover to the interface of the dirty cavity of the air filter body is very small, so that the gas cannot be obtained. Sufficient and timely expansion, which greatly reduces the effect of air filter intake noise reduction, and finally shows that the suction noise is large when the motorcycle is idling, which affects comfort

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