Particulate filter

A particulate filter comprising:

• an axial core composed of a heat resisting metal;
• a multi-layer body formed in a cylindrical shape by winding said axial core with a multi-layer member into which a non-woven fabric and a corrugated sheet each composed of a heat resisting metal are layered;
• and
• a heat resisting container charged with said cylindrical multi-layer body,
• wherein when installed in an exhaust system of an internal combustion engine, said axial core is formed with a hollow opened downstream thereof and extending upstream in the axial direction, and a through-hole formed through a peripheral wall of said axial core and communicating with the hollow and said multi-layer member along said axial core.

A particulate filter comprising:

• an axial core composed of a heat resisting metal;
• a multi-layer body formed by winding said axial core with a multi-layer member into which a non-woven fabric and a corrugated sheet each composed of a heat resisting metal are tiered;
• and
• a heat resisting container charged with said multi-layer body,
• wherein said multi-layer member has said corrugated sheets disposed on one surface of said non-woven fabric folded double in a widthwise direction so as to take a folded shape and at a portion between the folded surfaces.

A particulate filter comprising:

• an axial core composed of a heat resisting metal;
• a multi-layer body formed in a truncated cone shape by winding said axial core with a multi-layer member into which a non-woven fabric and a corrugated sheet each composed of a heat resisting metal are tiered;
• and
• a heat resisting container charged with said multi-layer body taking the truncated cone shape.