A device and method for maintaining a clean gas stream includes a particulate filter comprising support tube (20) made from a formed textile. The formed textile is constructed from a continuous filament inorganic yarn and is porous to allow gas and particulates therein to pass through the support tube. A filtering element is disposed about the support tube to trap particulates in the exhaust gas. The formed textile which defines the support tube is relatively flexible in its natural state. To act as a supporting structure, the formed textile is made less flexible by the application of an inorganic binder. The natural flexibility of the formed textile minimizes the damaging effects of mechanical and thermal shock, while the inorganic binder stiffens the formed textile and allows the support tube to support itself and the filtering element thereon.
申请公布号
WO9534748(A1)
申请公布日期
1995.12.21
申请号
WO1995US05397
申请日期
1995.05.02
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
FISCHER, EDWARD, M.;BLOOM, RICHARD, L.;SANOCKI, STEPHEN, M.;SABEAN, JOEL, H.