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GB/T 9487-2008 English PDF

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GB/T 9487-2008: Diesel engines -- Exhaust gas measurement under free acceleration
Status: Valid

GB/T 9487: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 9487-2008English229 Add to Cart 3 days [Need to translate] Diesel engines -- Exhaust gas measurement under free acceleration Valid GB/T 9487-2008
GB/T 9487-1988English239 Add to Cart 2 days [Need to translate] Diesel engines--Exhaust smoke measurement method at free acceleration Obsolete GB/T 9487-1988

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Basic data

Standard ID GB/T 9487-2008 (GB/T9487-2008)
Description (Translated English) Diesel engines -- Exhaust gas measurement under free acceleration
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J90
Classification of International Standard 27.020
Word Count Estimation 10,195
Date of Issue 2008-06-03
Date of Implementation 2009-01-01
Older Standard (superseded by this standard) GB/T 9487-1988
Regulation (derived from) National Standard Approval Announcement 2008 No.9 (Total No.122)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the exhaust smoke measurement methods and instrumentation freedom engine during acceleration. This standard applies to all kinds of variations of non-road mobile machinery operating conditions with diesel engines (such as loaders, bulldozers, tractor, handling machinery, forklift, road construction machines and mobile cranes with diesel). This standard does not apply to cars, wheel vehicles and low-speed trucks with diesel engines.

GB/T 9487-2008: Diesel engines -- Exhaust gas measurement under free acceleration

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Diesel engines. Exhaust gas measurement under free acceleration ICS 27.020 J90 National Standards of People's Republic of China Replacing GB/T 9487-1988 Diesel exhaust smoke measurement method at free acceleration degree Posted 2008-06-03 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is GB/T 9487-1988 "free acceleration measurement of diesel exhaust smoke," the amendment. This standard compared with GB/T 9487-1988, the main changes are as follows. --- Modify the scope of this standard. Original "applies to motor vehicle diesel engine" to "suitable for a variety of operating conditions change Non-road mobile machinery and diesel engines. " --- Modify the unit of measurement of smoke. The original provisions of "Hartridge smoke units" to "in percent or dullness In terms of m-1 light absorption coefficient "as smoke units of measurement. --- Modify the basic technical requirements of extinction smoke meter. Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. The standard internal combustion engine by the National Standardization Technical Committee (SAC/TC177) centralized. This standard was drafted. Shanghai Internal Combustion Engine Research Institute, Jiangsu Sida Power Machinery Group Co., Ltd., Beiqi Foton Motor Company Limited Secretary, Weichai Power Co., Ltd., Guangxi Yuchai Co., Ltd., Ningbo Xuelong Group Limited. The main drafters of this standard. Zhubing whole, namely dimensional Bin Chen Shumin, Zhang Lili, Tong Dehui, Cui Hua standard, Chai Yun Miao, Chen Yunqing, Huang Minqin, Zou Qiang, Wang Jianping, Qujun Ming, Xie Yaping. This standard replaces the standards previously issued as follows. --- GB/T 9487-1988. Diesel exhaust smoke measurement method at free acceleration degree

1 Scope

This standard specifies the method for measuring the exhaust smoke free diesel and measuring instruments during acceleration. This standard applies to all kinds of non-road operation of the variable condition mobile machinery diesel engines (such as loaders, bulldozers, tractors, handling machinery, Trucks, road construction and mobile cranes and other used diesel). This standard does not apply to vehicles, three-wheeled vehicles and low-speed vehicles with diesel engines.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 In the case of the diesel engine with the flywheel and other rotating inertia, low idle (no load minimum speed), the sudden rapid high idle speed (no load most High speed) acceleration operation conditions. 2.2 Diesel engine exhaust smoke free acceleration maximum operating conditions when measured.

3 Test conditions and methods of measurement

3.1 Test conditions 3.1.1 Diesel exhaust smoke free acceleration should be measured at the engine test bench. 3.1.2 The engine shall be disengaged with the dynamometer, and shall be equipped with a power unit and supporting inertia substantially equivalent rotating member. Allows the use of the clutch Allows the engine and dynamometer disengaged, the inertia of the portion of the clutch as long as the engine is running along together does not exceed the total inertia of the engine 25%. It agreed by the parties, allowing the test in the case of the engine and dynamometer phase junctions. 3.1.3 Engine test carried attachments must comply with the relevant standards or engine manufacturer's technical documentation. 3.1.4 before the test, the diesel engine allows the technical documentation specified by the manufacturer were run-in. 3.1.5 test diesel fuel injection pump limiter should be fixed at rated power required oil position, and should ensure that the engine can reach The specified maximum load speed. Different environmental conditions and standard atmospheric conditions during the test if, in accordance with relevant permit amendment provisions of the standard calibration work Rates and adjust the fuel injection pump limiter position. 3.1.6 test, the diesel engine should be specified in the instructions diesel and oil grades. Quality diesel fuel and oil should be consistent with national standards regulations set. Smoke containing diesel fuel additives are not allowed. 3.1.7 test diesel engine exhaust pipe to minimize the elbow and shaped pipe, the exhaust pipe surface should be finishing. Should ensure that the entire exhaust pipe Paul exhaust is not diluted. Exhaust system backpressure shall not exceed the engine manufacturer's technical documentation specified limits. 3.1.8 should be carried out sampling and exhaust smoke measurements on diesel engine exhaust manifold or the extension tube, the installation location should meet the sampling probe attached Record A. 3.2 requirements. May not set any sensor might interfere with installation of the exhaust flow in the exhaust pipe of the sampling probe. Diesel exhaust smoke test if there are two separate exhaust outlet pipe, it should be merged into a two outlet pipe exhaust manifold after Measurement. But also it allows the two separate exhaust pipe exhaust smoke measurements were, then, should take the larger value as a measure of smoke The amount of results. 3.2 Measuring Instruments Smoke Opacimeter should be specified in Appendix A of the free acceleration measuring diesel exhaust smoke.

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