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Performance test analysis system for EGR (Exhaust Gas Recirculation) cooler

An EGR cooler, test and analysis technology, applied in the direction of machine/structural component testing, instruments, measuring devices, etc., to achieve precise control, high safety, and good reliability.

Active Publication Date: 2015-03-25
台州市世达汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no mature patented design that can measure and evaluate the performance of the EGR cooler

Method used

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  • Performance test analysis system for EGR (Exhaust Gas Recirculation) cooler
  • Performance test analysis system for EGR (Exhaust Gas Recirculation) cooler
  • Performance test analysis system for EGR (Exhaust Gas Recirculation) cooler

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Experimental program
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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0031]EGR cooler 20 test gas parameter requirements: flow 1-10kg / min, control accuracy 1%, when the absolute pressure at the inlet of EGR cooler 20 is at its highest value, it can meet the required maximum flow. The inlet temperature of the sample gas of the EGR cooler 20 is less than or equal to 780°C, and the range and accuracy of the inlet and outlet temperature sensors are 0-1000±1°C. The temperature control accuracy of the sample gas inlet is ±5°C. In order to ensure the flow rate of the EGR cooler when the back pressure of the gas outlet is high, the gauge pressure of the sample gas inlet is about 3bar, which can be adjusted. The range and accuracy of the sample gas inlet pressure sensor are 0-3bar±0.1%. The range and accuracy of the pressure difference sensor at the inlet and outlet of the gas path are 0-20KPa±0.1%. EGR cooler 20 coolant flow range and prec...

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Abstract

The invention provides a performance test analysis system for an EGR (Exhaust Gas Recirculation) cooler. The performance test analysis system comprises a combustion system, a high-temperature air storage tank, an electric heater, a cooling water constant temperature system, the EGR cooler, a data acquisition system, sensors and other devices. The performance test analysis system has simple structure, accurate control, good reliability and high safety; and data acquired by the sensors is transmitted to a computer for analysis through an acquisition card and is evaluated. The effects of quickly acquiring, conveniently recording and accurately analyzing the data are achieved.

Description

technical field [0001] The invention belongs to the field of EGR coolers, in particular to an EGR cooler performance test and analysis system. Background technique [0002] Harmful emissions from engines are an important source of air pollution. With the popularity of automobiles in China and the increasing importance of environmental protection issues, how to effectively reduce harmful emissions from engines has become an important issue for the development of the engine industry in China and even the world. direction. EGR is the abbreviation of exhaust gas recirculation system, and its main purpose is to effectively reduce the emission of nitrogen oxides, one of the harmful gases in diesel engines. At present, the engine exhaust emission standards are becoming more and more stringent. In order to meet the EuroⅤ standard, almost all diesel engines will need to use the EGR system. It can be seen that the EGR cooler is an indispensable part of the EGR system, and its perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
Inventor 张伟涛张学东宋平
Owner 台州市世达汽车部件有限公司