Sintered composite filter
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United States of America Patent
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-
Jun 1, 1993
Grant Date -
N/A
app pub date -
Sep 5, 1991
filing date -
Sep 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter for removing impurities from waste gases, and especially from the waste gases of an internal combustion engine, includes a filter body consisting of a plurality of compression moulded, high temperature resistant, sintered filter plates consisting of metal powder, metal chips, metallic fibres or a mixture of these materials, which are arranged on top of or behind one another and kept at a distance from one another by spacers, to form between them a plurality of flow channels. The flow channels are open at one end and closed at the other end in order to form inlet and outlet channels. The walls of the filter plate situated between the inlet and outlet channels constitute filter surfaces. The filter plates are formed by filter discs lying on top of one another, arranged in a filter housing and having a free or open central interior space, so that the waste gases flow radially through the filter discs from the outside towards the interior space or from the interior space towards the outside.
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