Black smoke burning and purifying apparatus for vehicle exhaust

Abstract

The present invention provides an improved black smoke burning and purifying apparatus for a vehicle exhaust comprising a burning system connected to intake of the exhaust and also to an emission smoke buffered filtering system. The emission smoke is guided into the burning chamber of the burning system and the fuel is atomized by a fuel atomized nozzle without being affected by the emission smoke. A pneumatic pump delivers air into the burning chamber to enhance burning and the emission smoke sequentially passes through buffering and filtering units of said buffered filtering system. Said buffering unit reduces flow rate of the emission smoke to prevent backflow from blowing off the spark. The emission smoke drives a turbine blade to force it pass through the filtering unit to burn off the carbon residuals thereof with the high temperature emission smoke to maintain proper emission of the exhaust of a diesel engine.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention is related to a filtering apparatus installed at the rear end of an exhaust of a diesel engine for cleaning carbon residuals thereof in order to maintain a proper exhaust emission of the diesel engine.DESCRIPTION OF THE PRIOR ART[0002]Exhausts of vehicles with diesel engines tend to have carbon residuals accumulated at the filtering system of the filter once the smoke is exhausted therefrom. When the carbon residual reaches a certain level of thickness, emission blockage at the exhaust often occurs, which would unfavorably cause the internal pressure (back pressure) of the exhaust pipe to rise; therefore, in the automotive industry, it is common to install a back pressure sensor inside the exhaust pipe of a diesel engine vehicle to detect the pressure value at the filter of the filtering system such that condition of blockage caused by the carbon residuals therein can be detected. Once the carbon residuals accumulated at th...

AI Technical Summary

Benefits of technology

The present invention is about a system for cleaning and burning off carbon residues accumulated at the filtering unit of a diesel engine. The system includes a burning system, an emission smoke buffered filtering system, and a conical shield. The intake end of the exhaust pipe is fluidly connected to the burning system, which is further connected to the emission smoke buffered filtering system. The conical shield is made of a conical wall with plurality of through-holes, which reduce the flow rate of the emission smoke and make it uniform in passing through the filtering unit. Overall, the invention prevents blockages in the exhaust emission of the diesel engine while keeping it clean and safe.

Problems solved by technology

As such conventional filtering system installed at the rear end of the exhaust of a diesel engine car is prone to emission blockages due to the carbon residuals accumulated inside the filter over time, the filter of the emission of the exhaust from the diesel engine is affected and degraded, causing improper operations of the diesel engine as a result.

Images