ChinaAutoRegs｜GB/T 14097-2023英文版翻译《往复式内燃机 噪声限值》

Reciprocating Internal Combustion Engines—Limit Values of Emitted Noise

CONTENTS

Foreword I

1 Scope 1

2 Normative References 1

3 Terms and Definitions 1

4 Measurement Methods 2

4.1 General 2

4.2 Acoustic Treatment of Specific Sound Sources 2

4.3 Operating Conditions 2

5 Limit Values of Emitted Noise 3

5.1 Calculation of Limits for Sound Power Level 3

5.2 Noise Rating 3

6 Judgment Method 3

7 Markings 3

Annex A (Normative) Examples of Engine Noise Rating 4

1 SCOPE

This document specifies the limit values of five sound power levels of noise emitted by the reciprocating internal combustion engines.

This document is applicable to the reciprocating internal combustion engines (hereinafter referred to as “engines”, unless otherwise specified) defined in GB/T 21404.

2 NORMATIVE REFERENCES

The following normative documents contain provisions which, through normative reference in this text, constitute essential provision of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendment) applies.

GB/T 1859.1 Reciprocating internal combustion engines – Measurement of sound power level using sound pressure – Part 1: Engineering method

GB/T 1859.3 Reciprocating internal combustion engines – Measurement of sound power level using sound pressure – Part 3: Precision methods for hemi-anechoic rooms

GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 21404 Internal combustion engine – Determination and method for the measurement of engine power – General Requirements

3 TERMS AND DEFINITIONS

For the purpose of this document, the terms and definitions given in GB/T 1859.1, GB/T 1859.3 and GB/T 21404, as well as the following apply.

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