This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transport and storage of charge air coolers of internal combustion engine.
This standard is applicable to charge air coolers of internal combustion engine (hereinafter referred to as intercoolers) for automobiles, tractors and construction machinery. Other charge air coolers of internal combustion engine can also be used for reference.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2423.17 Environmental testing for electric and electronic products - Part 2: Test methods - Test Ka: Salt mist
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 3821 Small and medium power internal combustion engines - Cleanliness limits and measurements
JB/T 10408 Internal combustion engines - Heat exchangers - Reliability test method
JB/T 11798 Internal combustion engines - Heat exchangers - Wind tunnel test equipments
3 Terms and definitions
For the purposes of this document, the terms and definitions given in JB/T 11798 and the following apply.
3.1
fronted area
the area of the windward side of the intercooler core where the cooling medium is air
3.2
heat exchange efficiency
the ratio of the actual heat exchange of the intercooler to the maximum possible heat exchange under the same conditions
3.3
hot side
the channel of the charge air in the intercooler
3.4
cold side
the channel of the cooling medium (cooling water or air) in the intercooler
3.5
water cooling type
a type of intercooler that uses water as the cooling medium
3.6
air cooling type
a type of intercooler that uses air as the cooling medium
3.7
standard air
the air at a temperature of 20℃ and under the pressure of 101.3 kPa
GB/T 23338-2018 The following standards are cited：
