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1. 发明授权

US06681412B2 PTFE membrane filter for exhaust air of vacuum toilet system 有权
标题翻译：真空马桶系统废气PTFE滤膜
公开(公告)号：US06681412B2
公开(公告)日：2004-01-27
申请号：US10232354
申请日：2002-08-30
申请人： Martin Doss , Wolfgang Erdmann , Carsten Ohlfest
发明人： Martin Doss , Wolfgang Erdmann , Carsten Ohlfest
IPC分类号： E03D1100
CPC分类号： B01D46/543 , B01D46/0082 , B01D46/24 , B01D46/521 , B01D53/266
摘要： A filter arrangement for a vacuum toilet system includes a filter element arranged in a filter housing connected to a waste water tank of the vacuum toilet system. The filter element includes a polytetrafluoroethylene (PTFE) filter membrane on the inlet side thereof, a filter support material supporting the PTFE membrane, and a support cage, to form a filter cartridge. The filter is preferably a pleated cylindrical filter with the inlet side on the inside of the cylinder. The arrangement preferably further includes a rinsing nozzle that rinses contaminants from the inlet side surface of the filter element, to flow down into the waste water tank. This rinsing, together with the low adhesion and the surface filtration principle of the PTFE filter membrane, prevent clogging of the filter.
摘要翻译：用于真空马桶系统的过滤器装置包括布置在与真空马桶系统的废水箱连接的过滤器壳体中的过滤元件。过滤元件在其入口侧包括聚四氟乙烯（PTFE）过滤膜，支撑PTFE膜的过滤器支撑材料和支撑笼，以形成过滤器滤芯。过滤器优选为带圆筒形过滤器，其入口侧位于气缸的内侧。该装置优选还包括冲洗喷嘴，其从过滤元件的入口侧表面冲洗污染物，向下流入废水箱。这种冲洗以及PTFE过滤膜的低附着力和表面过滤原理，可以防止过滤器堵塞。

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