Honeycomb structure and catalyst body
AssigneeDenso Corporation
InventorKouhei Suzuki
Life of this patent
Estimating the term…
Abstract
A honeycomb structure provided with cell walls which partition the inside of a cylindrical outer skin having openings at both ends, and a large number of cells which are surrounded by the cell walls and provided in parallel in an axial direction of the cylindrical outer skin. At least part of the large number of cells include a protruding piece. The protruding piece forms a through-hole which penetrates the cell wall, and a protruding wall which protrudes inward of the cell at an angle from an edge of the through-hole.
Claims20
A honeycomb structure comprising:
- cell walls which partition an inside of a cylindrical outer skin, the cell walls having openings at both ends;
- and
- a large number of cells which are surrounded by the cell walls and arranged in parallel in an axial direction of the cylindrical outer skin, having a polygonal cross sectional shape, wherein at least a part of the large number of cells is provided with protruding pieces surrounding a vertex which is shared by adjacent cells, the protruding pieces are provided to surround the vertex of the polygonal shaped cell, and are symmetrically arranged in the adjacent cells, in an axial cross-section of the cell passing through the vertex,
- each protruding piece forming:
- a through-hole which penetrates through a corresponding one of the cell walls;
- and
- a protruding wall which is obliquely raised at an inclination away from an edge of the through-hole and provided to protrude inward with respect to a corresponding one of the cell.
A catalyst body formed by loading a catalyst on a honeycomb structure, the honeycomb structure comprising;
- cell walls which partition an inside of a cylindrical outer skin having openings at both ends;
- and
- a large number of cells which are surrounded by the cell walls and provided in parallel in an axial direction of the cylindrical outer skin having a polygonal cross sectional shape, wherein
- at least a part of the large number of cells include protruding pieces surrounding a vertex which is shared by adjacent cells, the protruding pieces are provided to surround the vertex of the polygonal shaped cell, and are symmetrically arranged in the adjacent cells, in an axial cross-section of the cell passing through the vertex,
- each protruding piece forming:
- a through-hole which penetrates a corresponding one of the cell walls;
- and
- a protruding wall which is obliquely raised at an inclination away from an edge of the through-hole and provided to protrude inward with respect to a corresponding one of the cells.
Dependencies are inferred from the claim text.