GB/T 725-2008 English PDF

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GB/T 725-2008: Internal combustion engines -- Nomenclature and code of designations
Status: Valid

GB/T 725: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 725-2008	169	Add to Cart	3 days	Internal combustion engines -- Nomenclature and code of designations	Valid
GB/T 725-1991	199	Add to Cart	2 days	Internal combustion engines. Nomenclature and code of designations	Obsolete

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Basic data

Standard ID: GB/T 725-2008 (GB/T725-2008)
Description (Translated English): Internal combustion engines -- Nomenclature and code of designations
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J90
Classification of International Standard: 27.020
Word Count Estimation: 7,723
Date of Issue: 2008-06-03
Date of Implementation: 2009-01-01
Older Standard (superseded by this standard): GB/T 725-1991
Quoted Standard: GB/T 1883.1; GB/T 726
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 product name and model designation of the internal combustion engine rules. This standard applies to reciprocating internal combustion engines. May also refer to other types of internal combustion engines used.

GB/T 725-2008: Internal combustion engines -- Nomenclature and code of designations

---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.
Internal combustion engines. Nomenclature and code of designations ICS 27.020 J90 National Standards of People's Republic of China Replacing GB/T 725-1991 The internal combustion engine product names and model preparation rules 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 replaces GB/T 725-1991 "internal combustion engine product names and model preparation of rules." This standard and GB/T 725-1991 phase Ratio, the main changes are as follows. --- Modify the normative references; --- Four parts of the original composition of the standard model, "the first, middle, rear, tail" with "the first part, the second part, the third part, fourth part"; --- Original standard "bore the symbol" to "general use bore or bore/stroke number", "should the available engine capacity or power of numbers"; --- Original standard model formed the "rear" part of the increase of the "fuel Symbol" column, and an internal combustion engine fuel in Appendix A to sign A list is given; --- In order to facilitate the management of computer models with scraps of letters to represent marked represented by the same big letters. Appendix A of this standard is an informative annex. 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. Jinan Diesel Engine Co., Ltd., Shanghai Internal Combustion Engine Research Institute, Guangxi Yuchai Machinery Co., Ltd., Ningbo Snow Dragon Holdings Limited. The main drafters of this standard. Wang Anzhong, meter-dimensional Bin, Li Shusheng, Chen Yunqing, Qiu Ruixing, Kung gold, Qu Yuling, He Xupei, Xie Yaping, Qujun Ming, Song Guochan, Bi Ye. This standard replaces the standards previously issued as follows. --- GB 725-1965, GB 725-1982, GB/T 725-1991. The internal combustion engine product names and model preparation rules

1 Scope

This standard specifies the product name and model designation of the internal combustion engine rules. This standard applies to reciprocating internal combustion engines (hereinafter referred to as internal combustion engine), may also refer to other types of internal combustion engines use.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1883.1 Reciprocating internal combustion engines - Vocabulary - Part 1. engine design and operation (GB/T 1883.1-2005; ISO 2710-1.2000, IDT) GB/T 726 reciprocating internal combustion engine rotation direction, the cylinder head and cylinder valves in-line internal combustion engine and the right machine, dryer and left Engine orientation defined (GB/T 726-1994, idt ISO 1204.1990)

3 Product name

The internal combustion engine product name shall comply with GB/T 1883.1, and according to the fuel used name, such as diesel, gasoline, natural Gas dryers.

4 model preparation

4.1 General 4.1.1 The internal combustion engine model by the Arabic numerals (hereinafter referred to as digital), the Chinese phonetic alphabet or international common abbreviated English alphabet (hereinafter Said the letter) Composition 4.1.2 Model preparation should be preferred in Table 1, Table 2, Table 3 letters, allowing manufacturers to choose other letter is necessary, but not with Table 1, Table 2, Table 3 letters repeat. Overlapping symbols used, but should be represented in Figure 1 sequence. 4.1.3 should be concise model of the internal combustion engine, the second part of the provisions of the symbol must be represented, but the first part of the third part and the fourth part symbol Yun Xu manufacturers increase or decrease depending on the circumstances, the same product type should be consistent, not free to change. 4.1.4 by the internal combustion engine imported products allowed to keep the original product or extend the original model based on the model. After the localization of products Should be in accordance with the standard provisions. 4.2 Model composition 4.2.1 The internal combustion engine model includes the following four parts showing the method shown in Figure 1. 4.2.2 The first part. the manufacturer code or series of symbols. This part of the code by the manufacturer to select the appropriate word 1 to 3 as needed Female representation. 4.2.3 The second part. the number of cylinders, cylinder layout pattern sign stroke symbol type, bore symbols. a) number of cylinders indicated by 1 to 2 digits; b) the cylinders are arranged according to type of symbol specified in Table 1; c) when the four-stroke cycle type of symbol is omitted, the two-stroke is represented by E; d) Bore Symbol Bore general use or Bore/Stroke numerals should be available for engine displacement or power numbers. The unit by the system Custom manufacturer. ......

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