发明名称 COMBINATION FILTER ARRANGMENT AND METHOD
摘要 A cartridge type filter is mounted in a housing and is serviced through the top of the housing. The cartridge includes first and second media packs axially stacked. The second media pack is in series behind the first media pack, and filters a portion of the liquid therethrough. The second media pack has a higher efficiency than the first media pack. The overall design has a drain system which allows liquid to drain from the interior of the filter housing and back to the sump before the filter cartridge is completely removed from the housing. Other optional features include an oil cooler, various valving, and a filter cartridge lockout mechanism.
申请公布号 US2011042329(A1) 申请公布日期 2011.02.24
申请号 US20090864369 申请日期 2009.01.22
申请人 DONALDSON COMPANY, INC. 发明人 HACKER JOHN R.;HONERMANN BRADLEY S.;EMERY MARK S.
分类号 B01D29/15;B01D29/50;B01D35/147;B01D35/153;B23P6/00 主分类号 B01D29/15
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