GB/T 35358.2-2017Inlet air cleaning equipment for vehicle engines and compressors -- Part 2: Fractional efficiency testing with coarse particles (5 ��m to 40 ��m optical diameter) (English PDF)

Foreword

GB/T 35358 "car engine and compressor intake air filtration device" is divided into two parts.

--- Part 1. Fine particle classification efficiency test (0.3µm to 5µm);

--- Part 2. Coarse grading efficiency test (5µm to 40µm).

This section GB/T 35358 Part 2.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This section uses the translation method is equivalent to using ISO/T S19713-2.2010 "road vehicles and air intake compressors compressor air filter Set Part 2. Coarse grading efficiency test (5µm to 40µm) "(in English).

This section made the following editorial changes.

--- According to this section of the main areas of application and terminology habits, the standard name changed to "car engine and compressor into Air air filtration unit Part 2. Coarse particle classification efficiency test (5µm to 40µm) ";

Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents.

This section proposed by the Ministry of Industry and Information Technology.

This part of the National Automotive Standardization Technical Committee (SAC/TC114) centralized.

This part of the drafting unit. Aviation Industry Filter Products Quality Supervision and Testing Center (Xinxiang), Zibo Yonghua Filter Co., Ltd., Ruian City Okai Jia Automotive Technology Co., Ltd.

Introduction

This section provides engine rating classification method of air filtration device for the traditional and new forms of air filtration device grading Efficiency measurement, the role of these air filtration device is to filter out dust in the air pollutants to protect the engine.

Fractionation efficiency is a major performance metric for air filtration units. This section is used to guide the measurement of this parameter test method. system the purpose of this test method is to classify the air filtration unit in a prescribed laboratory test bench in accordance with a uniform test method Test evaluation.

The data obtained in accordance with this section can be used to determine the classification efficiency characteristics of the air filtration unit tested in accordance with this method. actual the working environment (pollutants, humidity, temperature, mechanical vibration, flow fluctuations, etc.) is difficult to be simulated, but by using this test method, you can compare the high confidence level compares the classification efficiency of the air filtration unit.

Car engine and compressor intake air filter Part 2. coarse particle classification efficiency test (5 µm to 40 µm)

1 Scope

GB/T 35358 provisions of this part of the test method is through the use of test dust specified in ISO 12103-1 to measure the engine Grading efficiency of air filtration devices for 5µm to 40µm particles.

This part of the performance test including but not limited to the air flow resistance or pressure loss, the original classification efficiency and dust holding capacity during the test increment Grading efficiency.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 28949-2012 Performance Tests for Intake Air Filters for Internal Combustion Engines and Air Compressors (ISO 5011:2000, IDT) ISO 12103-1 Road vehicles - Test dust for filter assessment Part 1 Arizona Test Dust (Road vehicles-Testcontaminantsforfilterevaluation-Part 1: Arizonatestdust)

3 Terms and definitions

The following terms and definitions apply to this document.

Air cleaner assembly Assembly of air cleaner housing and air filter.

3.1.1

Single stage air cleaner Air filter without prefilter.

3.1.2

Multi-stage air cleaner an air cleaner consisting of two or more stages, the first stage is usually a prefilter, and the subsequent stages consist of one or more air filters.

Note. If two filters are used, the first one is called the main filter and the second one is the safety filter.

3.1.3

Pre-cleaner Before the test dust to reach the air filter, the use of inertial force or centrifugal force to remove part of the test dust device.

Air filter airfilterelement Was installed and sealed in the air cleaner assembly, from the actual filtration of the filter components.