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Diesel particulate filter apparatus

  • US 5,611,831 A
  • Filed: 11/13/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 11/16/1994
  • Status: Expired due to Fees
First Claim
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1. A diesel particulate filter apparatus comprising filter structures comprising ceramic fiber laminate materials formed by randomly laminating a ceramic fiber, and nets laminated on said ceramic fiber laminate materials for collecting particulates contained in exhaust gas from an engine with said filter structures;

  • wherein said filter structures are each bent in a wavy profile and formed in a tubular form, andwherein both end portions of said filter structures further comprise first rigid members having a form fitting in said wavy profile on the inner sides of said filter structures, second rigid members having a form fitting on said wavy profile on the outer sides of said filter structures, and tubular clamping members for clamping said filter structures in the thickness-wise direction thereof on the outer sides of said second rigid members.

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