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Noise reduction device for vehicle

A technology for vehicles and turbochargers, which is applied to jet propulsion devices, gas turbine devices, components of pumping devices for elastic fluids, etc., to achieve the effects of reducing noise, improving space utilization efficiency, and simplifying the assembly process

Active Publication Date: 2018-11-23
COOPER STANDARD AUTOMOTIVE & IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present disclosure is designed to solve the limitations and problems of the conventional technology as described above, and the present disclosure aims to provide a noise reduction device for a vehicle that can reduce noise at various frequencies because without increasing the size of the resonator The wide area of ​​the resonant chamber can be ensured, thereby improving the efficiency of space utilization

Method used

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  • Noise reduction device for vehicle
  • Noise reduction device for vehicle
  • Noise reduction device for vehicle

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Embodiment Construction

[0023] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Although the present disclosure has been described based on the embodiments depicted in the drawings, the technical idea, essential features, or operations of the present disclosure are not limited thereto.

[0024] figure 2 It is a figure which schematically shows the intake system of a vehicle.

[0025] refer to figure 2 , the air intake system 20 for a vehicle includes a turbocharger 30 installed for supercharging intake air supplied to the engine. The turbocharger 30 generates wide-band intake noise containing low and high frequencies when driven, and thus the driving noise generated at the turbocharger 30 degrades ride comfort of the driver, thereby deteriorating the overall sales of the vehicle. sex. Therefore, the vehicle noise reducing device 100 (see image 3 ) is installed to the rear end of the turbocharger 30 to reduce operating ...

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Abstract

The present invention relates to a noise reduction device comprising: an outer pipe which forms the external appearance; a turbo charger connection pipe in which a turbo charger for supplying air is inserted, and of which the outer surface is coupled to the outer pipe in a state of being in contact with the inner surface of the outer pipe, wherein the turbo charger connection pipe extends to the inside of the outer pipe; an inner pipe which is positioned inside the outer pipe and is integrally manufactured with the turbo charger connection pipe; and a baffle which partitions a resonance chamber, which is formed between the outer pipe and the inner pipe, into a plurality of parts.

Description

technical field [0001] The present disclosure relates to a noise reduction device for reducing noise of moving air, and more particularly, to a noise reduction device for a vehicle in which a plurality of resonance chambers are formed to effectively tune air of various frequencies. Background technique [0002] Generally, the intake system of a vehicle includes an air filter, a turbocharger, an intercooler, an air duct, and an engine manifold, and the air introduced into the internal combustion engine by the intake system is repeatedly expanded and contracted to generate intake air. pulsation. The pulsation of the intake air generates noise due to changes in air pressure, and in particular, the pulsation of the intake air becomes a factor causing greater noise due to a resonance phenomenon of air at the vehicle body or in the interior space of the vehicle. [0003] In order to suppress intake noise, a duct type resonator for attenuating or reducing intake noise of a specifi...

Claims

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Application Information

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IPC IPC(8): F02M35/12
CPCF02M35/1255F02C7/045F02M35/10157F04D29/665F05D2220/40F02M35/1211F02M35/1216F02M35/1233F02M35/1266Y02T10/12F02M35/1283
Inventor 黄镐俊赵光益李政昱
Owner COOPER STANDARD AUTOMOTIVE & IND INC