GB/T 32231-2015 PDF English
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General technical specifications of engine used for all-terrain vehicles
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GB/T 32231-2015: General technical specifications of engine used for all-terrain vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT32231-2015
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.01
T 10
General technical specifications of
engine used for all-terrain vehicles
ISSUED ON: DECEMBER 10, 2015
IMPLEMENTED ON: APRIL 01, 2016
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Requirements ... 6
5 Test methods ... 9
6 Inspection rules ... 10
7 Marking, instructions for use, packaging, transportation, and storage ... 11
Appendix A (Normative) Items of main technical specifications of engine ... 14
Appendix B (Normative) Table for inspection items of engine ... 18
General technical specifications of
engine used for all-terrain vehicles
1 Scope
This Standard specifies the terms and definitions, requirements, test methods,
inspection rules, marking, instructions for use, packaging, transportation, and
storage of engine used for all-terrain vehicles.
This Standard only applies to engine used for internal combustion engine all-
terrain vehicles defined in GB/T 24936 (hereinafter referred to as “engine”).
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 725 Internal combustion engines - Nomenclature and code of
designations
GB/T 1147.1 Small and medium power internal combustion engines - Part 1:
General requirements
GB/T 1147.2 Small and medium power internal combustion engines - Part 2:
Test methods
GB/T 3821 Small and medium power internal combustion engines -
Cleanliness limits and measurements
GB/T 5363 Method of bench test of engine for motorcycles and mopeds
GB/T 6072.1 Reciprocating internal combustion engines - Performance -
Part 1: Declarations of power, fuel and lubricating oil consumptions and test
methods - Additional requirements for engines for general use
GB 7258 Technical Specifications for Safety of Power-driven Vehicles
Operating on Roads
The maximum torque measured at full load of the engine under standard
environmental conditions.
3.5 Speed limiting device
A device which limits the maximum speed of an engine.
4 Requirements
4.1 Basic requirements
4.1.1 The engine shall be manufactured in accordance with the product
drawings and technical documents approved by the prescribed procedures; and
shall comply with the provisions of this Standard.
4.1.2 For engine type coding, refer to the provisions of GB/T 725 or QC/T 253.
4.1.3 The manufacturer shall be able to provide the main technical
specifications of the engine; see Appendix A.
4.1.4 The manufacturer shall, according to the purpose and characteristics of
the engine, give the required characteristic curve.
4.1.5 The engine shall, under various tilting conditions of maximum inclination
angle of 30° in front-rear and left-right, be able to work normally.
4.1.6 Any engine equipped with a speed limiting device can automatically limit
the speed or interrupt firing (After the speed is lower than the limited speed,
ignition operation can be automatically resumed).
4.1.7 The main parts and quick-wear parts (including accessories) of the same
type of engine shall be interchangeable.
4.1.8 Air leakage, oil leakage, and water leakage are not allowed on the sealing
surfaces and pipe joints of the engine.
4.1.9 The engine assembly shall be correct, tight, and reliable. The tightening
torque of important fasteners shall be in accordance with the technical
documents.
4.2 Operation quality
4.2.1 After starting, the manual starting mechanism shall be able to be flexibly
reset; and the electric starting mechanism shall be automatically disengaged.
4.2.2 The engine, when it is running, shall meet the following requirements:
“type-M”], the maximum torque of the engine shall comply with the provisions
of the enterprise product standard. The deviation of the maximum torque and
the corresponding speed value shall be in accordance with GB/T 17692.
4.4.3 Minimum fuel consumption rate
4.4.3.1 The minimum fuel consumption rate of spark-ignition engine shall be in
accordance with the value specified in QC/T 224.
4.4.3.2 The minimum fuel consumption of compression-ignition engine shall be
in accordance with the value specified in GB/T 1147.1.
4.4.4 Starting performance
4.4.4.1 The type-M gasoline engine, when the ambient temperature is not lower
than 255 K (-18 °C), other engines, when the ambient temperature is not lower
than 263 K (-10 °C), shall be able to start smoothly.
4.4.4.2 Electric starting engine, starting time shall not exceed 15 s, shall be able
to start successfully.
4.4.4.3 For engines with manual starting, the starting performance is divided
into two categories:
a) When manual starting is used as the major starting mode: The starting
time (excluding the auxiliary operation time before the starting) shall be no
more than 15 s. It shall be able to start successfully;
b) When the manual starting is used as the auxiliary starting mode: At least
the engine start can be realized; or the enterprise standard can be
implemented.
4.4.5 Minimum no-load stable speed (idle speed)
4.4.5.1 For the minimum no-load stable speed performance of a spark-ignition
engine, see the requirements of QC/T 224.
4.4.5.2 For the minimum no-load stable speed performance of a compression-
ignition engine, see the requirements of GB/T 1147.1.
4.5 Cleanliness
The engine’s cleanliness limits shall be in accordance with the values specified
in JB/T 9774.
4.6 Reliability and durability
5.5 Starting performance measurement
5.5.1 The starting performance measurement of spark-ignition engine shall be
carried out in accordance with the provisions of GB/T 5363.
5.5.2 The starting performance measurement of compression-ignition engine
shall be carried out in accordance with the provisions of GB/T 1147.2.
5.6 Measurement of minimum no-load stable speed (idle speed)
5.6.1 The minimum no-load speed measurement of spark-ignition engine shall
be carried out in accordance with the provisions of GB/T 5363.
5.6.2 The minimum no-load speed measurement of compression-ignition
engine shall be carried out in accordance with the provisions of GB/T 1147.2.
5.7 Cleanliness
The cleanliness test shall be carried out in accordance with the provisions of
GB/T 3821.
5.8 Durability and reliability
5.8.1 For spark-ignition engines, durability and reliability tests are carried out in
accordance with the provisions of QC/T 61.
5.8.2 For compression-ignition engines, the reliability test is carried out in
accordance with the provisions of GB/T 1147.2.
Note: For CVT engines, the intensifying test may be performed by means of the output
shaft.
6 Inspection rules
Engine inspection is classified into type inspection and exit-factory inspection.
6.1 Type inspection
6.1.1 The type inspection is an inspection to determine whether the main
performance of the engine meets the standards and relevant regulations. The
number of engines for type inspection is 1. Special circumstances may be
implemented according to relevant standards or regulations.
6.1.2 In one of the following cases, type inspection is required:
6.1.2.1 Major improvements in new or old products;
7.1.3 On the easy-to-see part of the engine, the manufacturing enterprise’s
trademark or factory logo shall be cast.
7.1.4 According to GB 7258, on the easy-to-see part of the crankcase, the
engine type and exit-factory number are printed.
7.1.5 During the period of use of the product, the mark shall be in good condition.
7.2 Instructions for use
7.2.1 The instructions for use of the engine shall include the following:
a) Product type and name;
b) Manufacturer’s name and address;
c) Product performance;
d) Specific location of exit-factory number;
e) Instructions for use of the product, etc.
7.2.2 The preparation, composition, content, and representation of the
instructions for use shall comply with the relevant provisions of GB 9969.
7.3 Packaging
7.3.1 Before the engine is packaged, the fuel in the oil supply devices such as
the carburetor shall be drained. According to the requirements of technical
documents of the manufacturer, it is oil-sealed; and dustproof measures shall
be taken.
7.3.2 The packaging of the engine shall be firm and reliable, with clear markings.
The technical requirements, test methods, and inspection rules, etc. shall
comply with the enterprise standards and the relevant provisions of GB/T 13384.
7.3.3 The engine, when leaving the factory, shall be accompanied by a product
qualification certificate, packing list, warranty bill, and instructions for use.
7.3.4 The outside of the packaging box shall be marked with the executive
standard number of the product, the engine type and name, the manufacturer’s
name and trademark, the external dimensions and total mass, the exit-factory
number and the date of manufacture. It is also marked with pictorial markings
such as “up”, “rain-proof”, “fragile article”, “stacking weight limit”. The pictorial
marking shall comply with the provisions of GB/T 191.
Note: The packaging of the export engine is packed according to the contract or the
Appendix A
(Normative)
Items of main technical specifications of engine
A.1 Main structural parameters
A.1.1 Type
A.1.2 Pattern (number of cylinders, stroke number, cooling mode, and cylinder
arrangement mode)
A.1.3 Cylinder diameter mm
A.1.4 Piston stroke mm
A.1.5 Working volume of single cylinder mL
A.1.6 Total displacement mL
A.1.7 Ignition mode: (spark-ignition, compression-ignition)
A.1.7.1 Ignition advance angle (°)
A.1.7.2 Fuel injection advance angle (°)
A.1.8 Oil supply mode: [carburetor, air inlet electronic-controlled injection
(single point/multi-point), direct injection in cylinder (electric control/mechanical)]
A.1.9 Injector injection pressure kPa
A.1.10 Injection mode: [intake pipe injection (single point/multi-point), direct
injection, other] (for spark-ignition mode)
A.1.11 Injector opening pressure kPa
A.1.12 Working voltage V
A.1.13 Compression ratio
A.1.14 Firing mode
A.1.15 Firing sequence
A.1.16 Intake mode
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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