外压力差。
空气中的微粒杂质的装置。活塞式机械（内燃机、往复压缩机等）工作时，如果吸入空气中含有灰尘等杂质就将加剧件的磨损，所以装有空气滤清器。
6I-2503 CAT卡特挖掘机空气滤芯满足标准价格多少
3G6925 3G6928 3G9626 3G9626 3H5673 3I0090 3I0105 3I0126 3I0167 3I0169 3I0203 3I0215 3I0302 3I0374 3I0382 3I0432 4L-9852 CAT卡特空气滤芯适用范围单价 3I0763 3I0764 3I0795 3I0799 3I0801 3I0804 3I0831 3I0836 3I0859 3I0919 3I0925 3I0929 3I1069 3I1081 3I1099 3I1143 3I1143 3I1143 3I1149 3I1155 3I1159 3I1160 3