发明授权
- 专利标题: Multilayered deep-bed filter material
- 专利标题(中): 多层深床过滤材料
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申请号: US505278申请日: 1995-10-06
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公开(公告)号: US5766288A公开(公告)日: 1998-06-16
- 发明人: Reiner Thiele , Henrik Badt
- 申请人: Reiner Thiele , Henrik Badt
- 申请人地址: DEX Peine DEX Selm
- 专利权人: Corovin GmbH,Kalthoff Luftfilter und Filtermedien GmbH
- 当前专利权人: Corovin GmbH,Kalthoff Luftfilter und Filtermedien GmbH
- 当前专利权人地址: DEX Peine DEX Selm
- 优先权: DEX9320208U 19931231
- 主分类号: B01D39/14
- IPC分类号: B01D39/14 ; B01D39/08 ; B01D39/16 ; B01D69/12 ; B32B5/26 ; B32B7/02 ; D04H13/00
摘要:
Multilayered filter material is provided with at least two layers having different filter properties (coarse filter layer and fine filter layer), for which the separation ratio of the coarse filter layer is selected depending on the number of layers of the filter material as well as the total separation ratio of the complete filter material. The separation ratio of the first layer is proportioned such that at least 20% of the total particles are filtered out by it. The first layer has a porosity of at least 95%. For the remaining filtration of the fine particles, at least one fine filter layer is present, which has a porosity of somewhat greater than 85%.
公开/授权文献
- US4537467A Hermetic sealing of gallium arsenide components 公开/授权日:1985-08-27