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GB/T 5770-2020 English PDF

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GB/T 5770-2020: Jerk fuel injection pump for diesel engine - Specifications
Status: Valid

GB/T 5770: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 5770-2020English259 Add to Cart 3 days [Need to translate] Jerk fuel injection pump for diesel engine - Specifications Valid GB/T 5770-2020
GB/T 5770-2008English479 Add to Cart 3 days [Need to translate] Technical requirements for jerk fuel injection pump Obsolete GB/T 5770-2008
GB/T 5770-1997English279 Add to Cart 3 days [Need to translate] Technical requirements for jerk fuel injection pump Obsolete GB/T 5770-1997
GB/T 5770-1986EnglishRFQ ASK 3 days [Need to translate] Technical specification for plunger-type fuel injection pumps Obsolete GB/T 5770-1986

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Basic data

Standard ID GB/T 5770-2020 (GB/T5770-2020)
Description (Translated English) Jerk fuel injection pump for diesel engine - Specifications
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J94
Classification of International Standard 27.020; 43.060.40
Word Count Estimation 14,136
Date of Issue 2020-04-28
Date of Implementation 2020-11-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 5770-2020: Jerk fuel injection pump for diesel engine - Specifications

---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.
Jerk fuel injection pump for diesel engine--Specifications ICS 27.020; 43.060.40 J94 National Standards of People's Republic of China Replace GB/T 5770-2008 Technical conditions of diesel engine plunger injection pump assembly 2020-04-28 release 2020-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Contents

Foreword I 1 Scope 1 2 Normative references 1 3 Technical conditions 1 3.1 Manufacturing 1 3.2 Oil 1 3.3 Installation type and connection size 2 3.4 Fuel supply pre-travel 2 3.5 The interval angle of the starting point of oil supply for each cylinder and its limit deviation 2 3.6 Flexibility of oil quantity adjustment mechanism 2 3.7 Recovery rate of fuel supply recovery rate 2 3.8 Fuel supply characteristics and deviation rate at rated operating conditions of fuel injection pump 2 3.9 Unevenness of oil supply volume of each cylinder 3 3.10 Fuel supply timing mark 3 3.11 Hydraulic timing correction plunger fuel injection pump 3 3.12 Maximum pump end pressure 3 3.13 Tightness 3 3.14 Cleanliness 3 3.15 Performance of oil transfer pump and hand pump 3 3.16 Appearance 4 3.17 Sealing mark 4 3.18 Reliability 4 3.19 Warranty period 4 4 Test conditions and test methods 4 4.1 Test conditions 4 4.2 Test method 4 5 Inspection rules 6 6 Signs, packaging, transportation and storage 6 6.1 Mark 6 6.2 Packaging 7 6.3 Transportation 7 6.4 Storage 7 Appendix A (Normative Appendix) Sampling Inspection and Qualification Rules for Fuel Injection Pump Products 8

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 5770-2008 "Technical Conditions for Diesel Engine Plunger Injection Pump Assembly". This standard and GB/T 5770- Compared with.2008, the main technical changes except for editorial changes are as follows. --- Modify the "calibration conditions" and "calibration speed" in the text to "rated conditions" and "rated speed" respectively; --- Added reference standards (see Chapter 2); --- Increase the requirements of fuel injection pump installation type and connection size (see 3.3); --- Increased the working speed of the fuel injection pump assembly governor (see 3.8.3); --- "The technical requirements for the injection pump with a top clearance for the plunger and coupler parts shall be implemented in accordance with the technical agreement for supply determined by the enterprise and the main engine manufacturer." Change to "For the fuel injection pump that uses hydraulic timing correction plunger and coupler, the relevant technical conditions comply with the provisions of JB/T 12043.1, and It can be executed according to the agreement signed between the user and the manufacturer. "(See 3.11, 3.11 in the.2008 edition); --- Deleted "The multi-cylinder fuel injection pump used to meet the national II and national III emission standards, the recommended value of the allowable pump end pressure is 100MPa And 120MPa "(see 3.12 in the.2008 edition); --- Deleted the service life requirements of the fuel injection pump (see 3.18 in the.2008 edition); --- Added "The measurement range of the injection pressure test instrument is 0MPa ~.200MPa, and the measurement error should be ≤ ± 3%" (see 4.1.5); --- Added "For the fuel injection pump that uses hydraulic timing correction plunger coupler, the pull rod should be at the maximum stroke position, that is, the The plunger is rotated to the end in the direction of increasing the oil supply, and the measurement is performed when the plunger sleeve is completely separated from the plunger top clearance groove. " (See 4.2.1, 4.2.2); --- Added the determination of the starting point of fuel injection of the fuel injection pump assembly (see 4.2.7); --- Increased the measurement of the pump end pressure of the fuel injection pump assembly (see 4.2.8); --- Change "outlet valve tight seat outlet" to "return port and outlet valve tight seat outlet" (see 4.2.9.1, 4.2.6.1 in.2008 version); --- Deleted the assessment method of service life (see 4.2.10 of the.2008 edition) --- Deleted the "2 service life" in the category A unqualified items in Table A.1 and Table A.2 in Appendix A, and the category C unqualified items in Table A.1 Add "11 fuel injection starting point" in the corresponding column of Table A.3 to be modified (see Appendix A, Appendix A of the.2008 edition). This standard was proposed by the China National Machinery Industry Federation. This standard is under the jurisdiction of the National Fuel Injection System Standardization Technical Committee (SAC/TC396). This standard was drafted by. China First Automobile Co., Ltd. Wuxi Oil Pump and Oil Nozzle Research Institute, Wuxi Weifu High-tech Group Co., Ltd. Company, Nanyue Electronic Control (Hengyang) Industrial Technology Co., Ltd., Longkou Long Pump Diesel Injection High-tech Co., Ltd., Heze Hengtai Oil Nozzle Limited company, Shandong Xinya Industrial Co., Ltd., Zhejiang Keboda Industrial Co., Ltd., Zhejiang Xinchai Co., Ltd., Yangzhou Xingyue Fuel Jet Co., Ltd. The main drafters of this standard. Wang Zheng, Chen Xiying, Ju Yusheng, Li Jing, Ouyang Lingxiang, Wang Renhui, Li Xianhua, Du Hongguang, Luo Cong, Tang Lifeng, Ke Bingjin, Sun Kehua, Deng Fei. The previous versions of the standard replaced by this standard are as follows. --- GB 5770-1986, GB/T 5770-1997, GB/T 5770-2008. Technical conditions of diesel engine plunger injection pump assembly

1 Scope

This standard specifies the technical requirements, test conditions and test of the plunger type fuel injection pump assembly with or without speed governor for small and medium power diesel engines Inspection methods, inspection rules, signs, packaging, transportation and storage requirements. This standard applies to the small and medium power diesel engine plunger fuel injection pump assembly (hereinafter referred to as fuel injection pump).

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 2828.1-2012 Counting sampling inspection procedures Part 1.Sampling by batch inspection according to acceptance quality limit (AQL) plan GB/T 2829 periodic inspection count sampling procedures and tables (applicable to the inspection of process stability) GB/T 5264 Diesel engine fuel injection pump plunger and coupler technical conditions GB/T 5771 Diesel engine fuel injection pump outlet valve coupler technical conditions GB/T 8029 diesel engine fuel injection pump calibration pump oil GB 19147 Diesel for vehicle GJB3075 military diesel specification JB/T 6291.1 Piston oil pump assembly Part 1.Technical conditions JB/T 6291.2 Piston oil pump assembly Part 2.Performance test method JB/T 6295 plunger injection pump installation type and connection dimensions JB/T 7661 Diesel engine oil pump nozzle cleanliness limit and determination method JB/T 8121 high-pressure fuel pipe assembly for diesel engine fuel injection pump test bench Technical conditions of JB/T 9734 fuel injection pump test stand JB/T 9735 Standard fuel injector assembly specification for fuel injection pump test stand JB/T 11414 synthetic fuel injection pump assembly reliability assessment assessment method, bench test method, fault classification and determination rules JB/T 12043.1 Diesel engine hydraulic timing correction plunger coupler part 1.technical conditions JB/T 12043.2 Diesel engine hydraulic timing correction plunger coupler part 2.performance test method

3 Technical conditions

3.1 Manufacturing The fuel injection pump shall be manufactured according to the product drawings and technical documents approved by the prescribed procedures, and shall comply with the requirements of this standard. 3.2 Oil When the fuel injection pump uses the fuel specified in GB 19147 and GJB3075, it should be able to ensure normal operation.

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