Vehicle exhaust pipe connecting device
A technology for automobile exhaust and pipe connection, which is applied in the direction of exhaust devices, mufflers, engine components, etc. It can solve problems such as damage, leakage, and inaccurate test results, so as to prevent automobile exhaust leakage, ensure accuracy, and ensure sealing Effect
Active Publication Date: 2018-03-06
SAIC MOTOR
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Problems solved by technology
[0003] If the exhaust tailpipe has a decorative sleeve, the exhaust emission of the whole vehicle is measured, because the connection between the decorative sleeve and the exhaust tailpipe is a spot welding connection, the process of collecting exhaust gas will easily lead to leakage, making the test result inaccurate
If the exhaust emission of the whole vehicle is measured when the decorative cover is removed, although more accurate results can be obtained, it will cause irreparable damage to the vehicle
Method used
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[0022] refer to figure 2 , image 3 , in the prior art, for the overall appearance of the automobile, a decorative cover 30 is arranged on the periphery of the exhaust pipe 20, but the decorative cover 30 and the exhaust pipe 20 are usually connected by spot welding. If the exhaust emission test device is directly connected to the decorative cover 30 If they are connected, the automobile exhaust gas will leak from the weld between the trim cover 30 and the exhaust pipe 20, making the test result inaccurate. In order to ensure the accuracy of the test, the decorative cover 30 is usually removed during the exhaust emission test, but this will cause irreparable damage to the vehicle.
[0023] The automobile exhaust pipe connection device of the present invention can accurately and effectively test the exhaust emission of automobiles under the premise of ensuring no damage to the decorative cover, without the occurrence of automobile exhaust leakage. Specifically, by arranging ...
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The invention discloses a vehicle exhaust pipe connecting device. The vehicle exhaust pipe connecting device comprises a connecting pipe and a fixed piece, wherein a sealing ring is fixedly arranged on the outer peripheral surface of the connecting pipe; the connecting pipe is used for inserting in the exhaust pipe, and is tightly connected with the exhaust pipe; and the fixed piece is fixedly connected with the connecting pipe, and is used for fixedly installing with an exhaust pipe decoration cover. When the tail gas emission of a vehicle needs to be measured, the connecting pipe in the vehicle exhaust pipe connecting device is aligned to the exhaust pipe, and the connecting pipe is inserted in part of the exhaust pipe; and the outer wall of the connecting pipe and the inner wall of theexhaust pipe are sealed by using the sealing ring on the connecting pipe, so that vehicle tail gas can be totally fed in the connecting pipe by the exhaust pipe, and is leaded out from one end of theconnecting pipe. After the connecting pipe is inserted in the exhaust pipe, the fixed piece is fixedly mounted on the decoration cover arranged on the outer peripheral surface of the exhaust pipe, andthe connecting pipe is firmly fixed on the exhaust pipe by the fixed piece, so that the connecting pipe cannot shake during measuring of the tail gas, and the effect of preventing leakage of the vehicle tail gas is achieved.
Description
technical field [0001] The invention relates to the technical field of automobile exhaust, in particular to an automobile exhaust pipe connecting device. Background technique [0002] At present, for the overall appearance of the car, most of the vehicle exhaust tailpipes on the market are provided with a decorative sleeve on the outside. In the process of vehicle development, it is necessary to measure the exhaust emission of the vehicle; after the development of the vehicle is completed, it may also be necessary to measure the exhaust emission of the vehicle by a specific testing organization. When measuring the pollutant exhaust emitted by the vehicle, it is necessary to collect all the pollutants. [0003] If the exhaust tailpipe has a decorative sleeve, the exhaust emission of the whole vehicle is measured, because the connection between the decorative sleeve and the exhaust tailpipe is a spot welding connection, the process of collecting exhaust gas will easily lead t...
Claims
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Login to View More IPC IPC(8): F01N13/08F01N13/18
CPCF01N13/08F01N13/1855
Inventor 邬建化徐志寅顾宇庆徐伟
Owner SAIC MOTOR