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Muffler with variable muffler frequency and vehicle with same

A muffler and frequency technology, applied in the field of vehicle parts, can solve the problem of not being able to cover the noise broadband and achieve a good noise reduction effect

Active Publication Date: 2022-05-17
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current muffler can only reduce the noise of a single frequency, and cannot cover most of the noise broadband

Method used

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  • Muffler with variable muffler frequency and vehicle with same
  • Muffler with variable muffler frequency and vehicle with same

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Embodiment Construction

[0016] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended invention purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] The invention provides a muffler with variable silencing frequency and a vehicle with the same. The muffler with variable silencing frequency can reduce noises of different frequency bands according to the driving conditions of the vehicle.

[0018] figure 1 Shown is a structural schematic diagram of a muffler with variable muffler frequency provided by an embodiment of the present invention, figure 2 shown as figure 1 Schematic diagram of the junction between the middle push rod and the partition, such as figure 1 and figure 2 As shown, the muffler with variable muffler frequency provided by the embodiment of the present invention includes a muffler body 10, an actuator 20, and a control un...

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Abstract

A muffler with variable muffler frequency and a vehicle with the same, the muffler with variable muffler frequency includes a muffler body, an actuator motor and a control unit, the muffler body includes a muffler inner tube, a muffler outer tube and a partition plate, the The outer tube of the muffler is sleeved outside the inner tube of the muffler, and a muffler hole is formed on the inner tube of the muffler, and the partition plate can be slidably arranged on the outer tube of the muffler and the Between the inner pipes of the muffler, the actuator motor is connected to the partition plate through a connecting rod, and the control unit drives the partition plate along the length direction of the muffler body through the actuator motor according to the driving conditions of the vehicle. sports. The vacuum pump can realize the function of providing vacuum negative pressure according to the braking demand, reduce fuel consumption and save energy. The muffler with variable muffler frequency can muffle noises of different frequency bands according to the driving conditions of the vehicle.

Description

technical field [0001] The invention relates to the field of vehicle parts, in particular to a muffler with variable muffler frequency and a vehicle with the muffler. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the comfort of vehicles. The quality of noise reduction performance is directly related to people's driving experience. Therefore, it has become the focus of research by major manufacturers and vehicle laboratories. . [0003] The acoustic performance of the muffler includes two aspects: the amount of noise reduction and the width of the noise reduction frequency band. The purpose of designing the muffler is to make the muffler's muffler frequency range meet the needs according to the characteristics and frequency range of the noise source, and to obtain a larger muffler as much as possible within the required frequency band. At present, most of the mufflers are fixed-frequency resonant cavit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N1/08F01N1/16
CPCF01N1/082F01N1/089F01N1/166
Inventor 张亚洲宋志辉周益波吴超吴卫钰袁爽沈源王瑞平
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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