Degradation early-warming apparatus for diesel engine emission

Abstract

The invention relates to the field of apparatuses and systems for vehicle emission degradation early-alarming and vehicle exhaust pollution control, and specially relates to a degradation early-warming apparatus for diesel engine emission. The degradation early-alarming apparatus comprises a vehicle-outside main part and a vehicle-inside main circuit board part; the vehicle-outside main part mainly consists of a main pipe, two branch pipes respectively symmetrically fixedly disposed at the exterior of the two through holes on the wall of the main pipe, a comparison-device installing pipe fixedly disposed above the exterior of the main pipe, and two sets of photoelectric coupling signal detectors respectively disposed in the branch pipe and the comparison-device installing pipe; the vehicle-inside main circuit board part mainly consists of a digital-analog converter, a control processor connected with the digital analog converter, and a display and an alarm both connected with the control processor; and the photoelectric coupling signal detectors is connected with the digital analog converter. The apparatus is small in volume, portable in material and low in production cost, and has no influence on vehicle appearance and no influence on vehicle normal use; and the apparatus is disposed on the diesel engine vehicle for real-time monitor, is convenient for problem discovery, and is easy to popularize.

Description

technical field [0001] The invention relates to the fields of automobile emission deterioration early warning and automobile exhaust pollution control devices and systems, in particular to a diesel engine emission deterioration early warning device. Background technique [0002] With the continuous increase of urban car ownership, the problem of motor vehicle exhaust pollution is becoming more and more serious. Existing high-pressure injection, turbocharging and intercooling devices can control pollutant emissions by improving the engine working process, but the effect will gradually decrease over time. Old vehicles in urban traffic flow, especially heavy-duty diesel vehicles such as buses and trucks, often produce black smoke after many years of engine degradation, which has a great impact on urban air quality. It is almost impossible to observe the discharge of the tailpipe in the car. The existing three conventional emission detection devices have their own characterist...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art, and to solve the problems that the current emission detection device is not easy to carry with the vehicle, cannot monitor in real time, the instrument is expensive and the operation process is complicated, etc., and a diesel engine is provided. Emission deterioration warning device

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