초록 ▼

An apparatus for filtering solid particulates from fluid flows having a honeycomb filter body formed by a matrix of thin, interconnected porous walls which define inlet and outlet faces of the body and a plurality of hollow inlet and outlet cells each extending through the body from at least one of

An apparatus for filtering solid particulates from fluid flows having a honeycomb filter body formed by a matrix of thin, interconnected porous walls which define inlet and outlet faces of the body and a plurality of hollow inlet and outlet cells each extending through the body from at least one of the inlet or outlet faces, the thin walls having internal interconnected open porosity sufficient to allow the fluid to travel completely across the thin walls in their narrower dimension and through the thin walls in their longer dimensions between the inlet and outlet cells and to prevent at least a significant portion of the solid particulate material carried by the fluid from passing either completely across or through the walls. Solid particulate filtering occurs on all thin wall surfaces of the inlet cells regardless of whether those thin walls are shared with adjoining inlet or outlet cells. Also a method of fabricating the apparatus comprising providing the matrix, forming the inlet cells by closing them at the outlet face and forming the outlet cells by closing them at the inlet face.

대표청구항 ▼

In an apparatus for filtering solid particulates from fluids including a filter of honeycomb structure comprising: a matrix of interconnected thin porous walls comprising at least one inlet end face and at least one outlet end face of the filter and a multiplicity of cells, each cell extending throu

In an apparatus for filtering solid particulates from fluids including a filter of honeycomb structure comprising: a matrix of interconnected thin porous walls comprising at least one inlet end face and at least one outlet end face of the filter and a multiplicity of cells, each cell extending through the filter from at least one of the inlet or outlet end faces, an outlet group of cells each open at at least one outlet end face and closed at each adjoining inlet end face, an inlet group of cells each open at at least one inlet end face and closed at each adjoining outlet end face, substantially all cells of the inlet group each sharing at least one thin wall in common with another adjoining cell of the inlet group, and the thin walls containing interconnected open porosity of a volume and size sufficient to enable the fluid to flow completely across the narrow dimension and through the longer dimensions of the thin walls and to restrain most or all of the solid particulates from passing either completely across or completely through the thin walls in any direction, whereby filtering occurs through all thin walls defining each inlet cell. A method of fabricating a structure for filtering solid particulates from fluid passed through the body comprising the steps of: providing a matrix of thin interconnected porous walls defining at least one inlet and one outlet end face and a multiplicity of cells extending substantially through the structure from an inlet or outlet end face, the walls containing interconnected open porosity of a volume and size sufficient to enable the fluid to flow completely across and through the thin walls in any direction, including through the longer dimensions of the thin walls, and to restrain at least a significant portion of the solid particulates in the fluid from passing either completely across or through the thin walls in any direction, forming an inlet group of cells, each inlet cell being open at at least one inlet end face and closed along any adjoining outlet end face and some inlet cells sharing thin walls in common with other inlet cells; and forming an outlet group of cells, each outlet cell being open at at least one outlet end face and closed along any adjoining inlet end face.