Switchable spiral-flow type exhaust gas spark arrester for automotive vehicle

Abstract

The invention discloses a switchable spiral-flow type exhaust gas spark arrester for an automotive vehicle, which relates to an engine exhaust gas processing device for extinguishing spark and combines spiral-flow centrifugal seperation trapping and filter screen barrier seperation trapping. A rotary type spiral-flow valve core and a diversion cover are assembled into an organic whole body of the spark arrestor, wherein the rotary type spiral-flow valve core is opened, an air current chamber is formed to discharge exhaust gas smoothly, and when the rotary type spiral-flow valve core is closed, a diversion chamber and a spiral-flow chamber are formed to carry out multistage composite seperation trapping extinguishment combining spiral-flow centrifugal seperation trapping and filter screen barrier seperation trapping on spark particles. The switchable spiral-flow type exhausting spark arrester is suitable for meeting two special requirements that after the spark arrester is arranged once for all, the valve core is opened when the spark arrester operates in a safety environment and the valve core is closed when the spark arrester operates in a flammable and explosive environment, thereby the complexly repeated dismantling is eliminated, and the transportation efficiency is improved.

Description

1. Technical field: [0001] The invention relates to an engine exhaust treatment device for eliminating sparks; in particular, it relates to a switchable motor vehicle which is suitable for running in a safe environment to exhaust smoothly and for driving in an inflammable and explosive environment to eliminate sparks. Exhaust spark extinguishing device. 2. Technical background: [0002] After the motor vehicle engine is started, there will be sparks in the exhaust. When the motor vehicle travels to an inflammable and explosive environment, the sparks will cause fire and explosion accidents. [0003] The motor vehicle exhaust spark extinguisher is a device installed at the port of the motor vehicle engine exhaust pipe to discharge the combustion exhaust gas from the engine, and the spark particles are separated, captured and extinguished. The equipment that must be installed plays an important role in ensuring the safety of motor vehicles in flammable and explosive environme...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to overcome the deficiency of the prior art that the separation and collection efficiency of a single filter screen is not high when the valve core is closed, and to provide a kind of exhaust gas passing through smoothly when the valve core is opened by using the fluid law, and when the valve core is closed. A switchable swirling spark extinguishing device that combines cyclone centrifugal separation and trapping with filter screen barrier separation and trapping for spark particles, thereby significantly improving the separation, trapping and extinguishing of spark particles when it is shut down in an inflammable and explosive environment s efficiency

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