A pet cold air intake with resonant cavity

A technology of air inlet and resonant cavity, which is applied in the arrangement of cooling combination of power unit, power unit, vehicle components, etc., can solve the problems of long pipeline, complicated process, occupying the length of pipeline, etc., and achieve the effect of noise reduction , The process is simple and the effect of reducing the cost of the pipeline
CN110667373BActive Publication Date: 2021-11-19CHINA FIRST AUTOMOBILE
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA FIRST AUTOMOBILE
Publication Date
2021-11-19

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Abstract

The invention discloses a PET cold air inlet with a resonant cavity. The main pipeline of the air inlet is all made of PET material, including a PET upper part and a PET lower part, and a cavity shell wrapping the resonant cavity is arranged between the PET upper part and the PET lower part. , PET upper part and PET lower part are welded and fixed, and the resonant cavity is covered in the cavity shell, and the resonant cavity and the cavity shell are closely matched, so that the resonant cavity cannot move in the pipeline. The front end of the air inlet pipeline is preset with a fixed structure and the fixing nut is pre-embedded on the fixed structure, and the air inlet pipeline is fixed on the front frame by bolts, and the rear end of the air inlet pipeline is fastened to the air filter.
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Description

technical field

[0001] The invention relates to a vehicle air intake, in particular to a PET cold air intake with a resonant cavity. Background technique

[0002] In the research and development process of the Hongqi car project, the air intake needs to achieve targeted noise reduction in the (500-600) Hz frequency band on the basis of satisfying broadband noise reduction. The definition of the pipeline scheme is based on the selection of PET materials. Resonant cavity: Due to the limitation of the surrounding of the vehicle, the overall length of the intake pipe is relatively short, and the front and rear are close to the engine and front-end frame. The resonant cavity can only be arranged on the side of the pipeline, where the welding seam of the PET pipeline is located, and direct welding cannot be used. The method is connected with the PET tube, so there is an urgent need for a new connection method between the resonant cavity and the PET tube.

[0003] At present, the ...

Claims

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