초록 ▼

There is disclosed a honeycomb structure comprising a plurality of honeycomb segments (12), bonded into one piece, having an outer peripheral wall (8), cell walls (2) disposed inside the outer peripheral wall, and a large number of cells (3) partitioned by the cell walls and passing through an axial

There is disclosed a honeycomb structure comprising a plurality of honeycomb segments (12), bonded into one piece, having an outer peripheral wall (8), cell walls (2) disposed inside the outer peripheral wall, and a large number of cells (3) partitioned by the cell walls and passing through an axial direction. The honeycomb structure (1) comprises the honeycomb segment (12) in which the cell walls (2) have an angle in a range of 25 to 65 degrees to a straight line along an outermost point of the outer peripheral wall (8a) adjacent to another honeycomb segment, in a vertical section to an X-axis direction of the honeycomb structure (1). The honeycomb structure including the honeycomb segment can be used in a filter for trapping particulate in an exhaust gas of an internal combustion engine, boiler, etc. and can be superior in resistance to cracks by a thermal stress.

대표청구항 ▼

The invention claimed is: 1. A honeycomb structure comprising a plurality of honeycomb segments bonded into one piece, each segment having an outer peripheral wall, cell walls disposed inside the outer peripheral wall, and a large number of cells partitioned from one another by the cell walls and p

The invention claimed is: 1. A honeycomb structure comprising a plurality of honeycomb segments bonded into one piece, each segment having an outer peripheral wall, cell walls disposed inside the outer peripheral wall, and a large number of cells partitioned from one another by the cell walls and passing through an axial direction, wherein in a vertical section to the axial direction of the honeycomb structure, the honeycomb structure comprises the honeycomb segment whose cell walls have an angle in a range of 25 to 65 degrees to a straight line along an outermost point of the outer peripheral wall adjacent to another honeycomb segment, wherein the another honeycomb segment has cell walls having an angle in a range of 25 to 65 degrees to a straight line along an outermost point of the outer peripheral wall of the honeycomb segment adjacent to the another honeycomb segment, wherein outermost peripheral walls are formed from a plurality of honeycomb segments having outer peripheral walls that do not make a straight line along an outermost point of the outer peripheral wall, and wherein the honeycomb segment and the another honeycomb segment are each located in a central portion of the honeycomb structure, and are each substantially quadrangular in shape. 2. The honeycomb structure according to claim 1, wherein a shape of the cell in the vertical section of the honeycomb structure is quadrangular shape. 3. The honeycomb structure according to claim 1, wherein a major component of the honeycomb segment is silicon carbide or a silicon/silicon carbide composite material. 4. The honeycomb structure according to claim 2, wherein a major component of the honeycomb segment is silicon carbide or a silicon/silicon carbide composite material. 5. The honeycomb structure according to claim 1, wherein 70% by volume or more of the honeycomb structure is constituted of the honeycomb segment having a sectional area of 900 mm 2 to 10000 mm2 in the section of the honeycomb segment. 6. The honeycomb structure according to claim 2, wherein 70% by volume or more of the honeycomb structure is constituted of the honeycomb segment having a sectional area of 900 mm2 to 10000 mm2 in the section of the honeycomb segment. 7. The honeycomb structure according to claim 3, wherein 70% by volume or more of the honeycomb structure is constituted of the honeycomb segment having a sectional area of 900 mm2 to 10000 mm2 in the section of the honeycomb segment. 8. The honeycomb structure according to claim 4, wherein 70% by volume or more of the honeycomb structure is constituted of the honeycomb segment having a sectional area of 900 mm2 to 10000 mm2 in the section of the honeycomb segment. 9. The honeycomb structure according to claim 1, wherein openings of predetermined cells in the honeycomb segments are plugged in one end face, and the openings of a part of remaining cells are plugged in the other end face. 10. The honeycomb structure according to claim 2, wherein openings of predetermined cells in the honeycomb segments are plugged in one end face, and the openings of a part of remaining cells are plugged in the other end face. 11. The honeycomb structure according to claim 3, wherein openings of predetermined cells in the honeycomb segments are plugged in one face, and the openings of a part of remaining cells are plugged in the other end face. 12. The honeycomb structure according to claim 8, wherein openings of predetermined cells in the honeycomb segments are plugged in one end face, and the openings of a part of remaining cells are plugged in the other end face. 13. The honeycomb structure according to claim 1, wherein the openings of the predetermined cells in the honeycomb segments are plugged in one end face, and the openings of all the remaining cells are plugged in the other end face. 14. The honeycomb structure according to claim 5, wherein the openings of the predetermined cells in the honeycomb segments are plugged in one end face, and the openings of all the remaining cells are plugged in the other end face. 15. The honeycomb structure according to claim 6, wherein the openings of the predetermined cells in the honeycomb segments are plugged in one end face, and the openings of all the remaining cells are plugged in the other end face. 16. The honeycomb structure according to claim 8, wherein the openings of the predetermined cells in the honeycomb segments are plugged in one end face, and the openings of all the remaining cells are plugged in the other end face. 17. The honeycomb structure according to claim 1, wherein adjacent honeycomb segments are adjoined at an outer peripheral wall of each segment such that each adjoined honeycomb segment includes at least one additional outer peripheral wall that is at a 90° angle with respect to the adjoining outer peripheral walls of the adjoined honeycomb segments, the at least one additional outer peripheral wall of each adjoined honeycomb segment being aligned with and parallel to each other. 18. The honeycomb structure according to claim 17, wherein the adjacent honeycomb segments are in a central portion of the honeycomb structure such that none of the outer peripheral walls of either honeycomb segment forms any part of the outermost peripheral wall of the honeycomb structure, and wherein each adjacent honeycomb segment includes second additional outer peripheral walls on sides opposite each segment from the first additional outer peripheral walls, the second additional outer peripheral walls also being at a 90° angle with respect to the adjoining outer peripheral walls of the adjoined honeycomb segments, the second outer peripheral walls of each adjoined honeycomb segment being aligned with and parallel to each other.