Particulate trap for diesel engine

A particulate trap for use in a diesel engine comprising:

• a filter element comprising two or more even number of spiral layer members, each said spiral layer member comprising a filter formed from a non-woven fabric made of a heat resistant metal and a corrugated sheet made of a heat resistant metal laminated with an inner side of said filter;
• each said spiral layer member having a closed edge comprised of two adjacent ends of said filters joined together, and an open edge;
• said spiral layer members being laminated with one another so as to define a plurality of spiral exhaust spaces;
• wherein said spiral layer members are arranged such that said closed edges of said spiral layer members are located at even numbered spiral exhaust spaces and said open edges of said spiral layer members are located at odd numbered spiral exhaust spaces at one end of said filter element, and said closed edges of said spiral layer members are located at odd numbered spiral exhaust spaces and said open edges of said spiral layer members are located at even numbered spiral exhaust spaces at an opposite end of said filter element.