GB/T 37692-2019: Running mode specific fuel consumption limits and measurement methods for small spark ignition engines of non-road mobile machinery

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Scope

This Standard specifies the running mode specific fuel consumption limits and
measurement methods for small spark ignition engines of non-road mobile
machinery (hereinafter referred to as "engines"), which use gasoline, etc. as
fuel.
This Standard applies to (but not limited to) the following non-road mobile
machinery engines with a net power of not more than 19 kW:
- Lawn mower ;
- Chain saw;
- Generator;
- Water pump;
- Brush cutter;
- Mini-tiller;
- Rice transplanter;
- Hedgerow machine;
- Hair dryer;
- Snowplow;
- High-pressure washer;
- Vibratory plate compactor;
- Troweling machine.
This Standard does not apply to engines for the following purposes:
- Engines used to drive ships;
3.1
Fuel consumption
The amount of fuel consumed by an engine per unit time under specified
environmental conditions and specified power.
[GB/T 21404-2008, definition 3.4.1]
3.2
Specific fuel consumption
The amount of fuel consumed by an engine per unit power and unit time.
[GB/T 21404-2008, definition 3.4.1.1]
3.3
Running mode specific fuel consumption
The weighted mean of the specific fuel consumption of an engine under multiple
working conditions.
3.4
Net power
The power measured from the crankshaft end or its equivalent parts, at the
corresponding engine speed, when the engine is installed with engine
installation and accessories in accordance with the requirements of Table A.1
in Appendix A on the test bench.
3.5
Intermediate speed
85% of the rated speed when the engine is tested in the G1 cycle.

Basic Data

Standard ID	GB/T 37692-2019 (GB/T37692-2019)
Description (Translated English)	Running mode specific fuel consumption limits and measurement methods for small spark ignition engines of non-road mobile machinery
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J91
Classification of International Standard	27.020
Word Count Estimation	18,127
Date of Issue	2019-06-04
Date of Implementation	2020-01-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration