A method and device for improving the noise of a supercharger of a passenger car
A supercharger, passenger car technology, applied in the direction of machines/engines, internal combustion piston engines, mechanical equipment, etc.
Active Publication Date: 2017-09-19
康跃科技(山东)有限公司
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- Description
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- Application Information
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a method for improving the noise of a passenger car supercharger for the tail sound caused by the response lag of the supercharger
Method used
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Embodiment Construction
[0028] Examples such as figure 2 , image 3 As shown, a method for improving the noise of a passenger car supercharger is to install a bypass pipe 12 connected in parallel with the compressor between the compressor intake pipe and the engine intake pipe 27, and make the bypass pipe 12 through the airflow switching device The pipeline between the compressor outlet pipe and the engine intake pipe 27 is alternately opened and closed to reduce and shorten the tail sound of the supercharger.
[0029] The airflow switching device includes a switching valve 13 which can be connected with the throttle transmission and can control the alternate opening and closing of the pipeline between the bypass pipe 12 and the compressor outlet pipe and the engine intake pipe 27 .
[0030] The combined working principle of the supercharger and the engine is that the wastegate valve 9 and the transmission plate 10 rotate integrally, and are fixed on the supercharger housing with the bracket 4 thro...
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The invention discloses a method for improving the noise of a supercharger of a passenger vehicle. A bypass pipe connected in parallel with an air compressor is mounted between an air inlet pipe of the air compressor and the air inlet pipe of an engine, and an air flow switching device is used for realizing alternant opening and closing of a pipeline between the bypass pipe and an air outlet pipe of the air compressor and a pipeline between the bypass pipe and the air inlet pipe of the engine so as to reduce and shorten the end sound of the supercharger. The invention discloses the air flow switching device for improving the noise of the supercharger of the passenger vehicle; the device comprises a switching valve which is connected in a driving manner with an accelerator and used for controlling the alternant opening and closing of the pipeline between the bypass pipe and the air outlet pipe of the air compressor and the pipeline between the bypass pipe and the air inlet pipe of the engine. With release of the accelerator, the switching valve is driven to control the alternant opening and closing of the pipeline between the bypass pipe and the air outlet pipe of the air compressor and the pipeline between the bypass pipe and the air inlet pipe of the engine, so that the end sound of the supercharger can be reduced and shortened.
Description
technical field [0001] The invention relates to a method and a device for reducing noise of a turbocharger, in particular to a method and a device for improving the noise of a supercharger for a passenger car, belonging to the field of internal combustion engines. Background technique [0002] Car noise not only increases the fatigue of drivers and passengers, but also affects the driving safety of cars, especially passenger cars, which have higher requirements for noise control. In order to strictly control the noise, vehicle inspectors will conduct strict tests and inspections on the vehicle. Some car manufacturers test the aerodynamic noise by continuously accelerating and releasing the accelerator. Since there is no mechanical connection between the engine and the supercharger, it is only driven by exhaust gas. When the engine is accelerated or the accelerator is loosened rapidly, the engine speed will rise or fall sharply. Although the speed of the supercharger will als...
Claims
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IPC IPC(8): F02B37/16
CPCY02T10/12
Inventor 王航桑悟海袁道军刘功利李伟刘永芳张晓东
Owner 康跃科技(山东)有限公司