QC/T 770-2020 Translated English of Chinese Standard (QCT770-2020): Dry type air cleaner assembly of automobileswww.ChineseStandard.net, 30 Ιουν 2021 - 20 σελίδες This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage of dry-type air cleaner assemblies of automobiles. This document applies to dry-type air cleaner assemblies of automobiles (excluding passenger cars), which have a volume flow of less than 4000 m3/h. For the dry air cleaners for construction machinery, agricultural and forestry machinery, ships and stationary power, they may also refer to this document. |
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air cleaner assembly air filter air intake prefilter air intake resistance air volume flow ash capacity assembly Carry assembly of blade assembly of straight-through assembly of tangential assembly shall meet assembly undergoes assembly with cap-type automobile axial swirl tube basin-type or single-tube Bengbu blade ring capacity of assembly cyclone tube prefilter different prefilters drops by 0.5 dust shall meet efficiency of assembly Filter paper filtration efficiency drops intake resistance reaches laboratory meet the requirements Multi-stage assembly Multi-stage prefilter assembly Original air intake original filtration efficiency petrochemical pre-filtration efficiency QC/T rated air volume reaches 6 kPa requirements of GB/T requirements of Table resistance of assembly ring or tangential Shandong Single-stage assembly single-tube prefilter specified in Table standards are published straight-through cyclone tube supplier tangential air intake tangential or axial test is carried Test methods test termination condition type inspection Type of assembly type of prefilter weather resistance test whole-life filtration efficiency Zhejiang