发明名称 |
Air filter |
摘要 |
There is provided an air filter, which has a long lifetime and permits to capture effectively carbon particles and reduce costs. The air filter has the first filter layer 11 impregnated with oil and the second filter layer 12, which is provided on the downstream side of the first filter layer 11 and serves as a lipophobic layer having an oil-repellent property. The filter material of the first filter layer 11 has a higher density than the filter material of the second filter material 12.
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申请公布号 |
US6843819(B2) |
申请公布日期 |
2005.01.18 |
申请号 |
US20020031588 |
申请日期 |
2002.01.23 |
申请人 |
TOYO ROKI SEIZO KABUSHIKI KAISHA;AWA PAPER MFG. CO., LTD. |
发明人 |
SUZUKI ATSUSHI;OBA TOSHINORI;MATSUSHITA NORIHIKO;SUZUKI KATSUMI;JO TAKEO |
分类号 |
F02M35/024;B01D39/00;B01D39/14;B01D39/18;B01D46/12;B01D46/52;(IPC1-7):B01D46/10 |
主分类号 |
F02M35/024 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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