Fixing Device of Catalyst Substrate

Abstract

A fixing device includes a silencer and a catalyst mantle. The silencer is communicated with an exhausting route of an internal combustion engine. The silencer has at least one clapboard to divide inner space thereof for forming a plurality of expanding rooms, which are communicated with each other and configured for guiding waste gas. The catalyst mantle is integrated on the clapboard. The catalyst mantle has an admission terminal and an exhaust terminal communicated with the plurality of expanding rooms. A substrate having catalyst coated thereon is arranged in the catalyst mantle between the admission terminal and the exhaust terminal. The present fixing device improves the fixing capacity of the substrate, and decreases the manufacturing steps for arranging the catalyst mantle in the silencer.

1 . A fixing device of catalyst substrate, comprising:
 a silencer communicated with an exhausting route of an internal combustion engine, the silencer having at least one clapboard to divide inner space thereof for forming a plurality of expanding rooms, which are communicated with each other and configured for guiding waste gas; and   a catalyst mantle integrated on the clapboard, the catalyst mantle having an admission terminal and an exhaust terminal communicated with the plurality of expanding rooms, a substrate having catalyst coated thereon being arranged in the catalyst mantle between the admission terminal and the exhaust terminal, the catalyst mantle further including at least one block configured for preventing the substrate sliding to the exhaust terminal.   
   
   
       2 . The fixing device of catalyst substrate as claimed in  claim 1 , wherein the block is a baring pole integrated on the exhaust terminal of the catalyst mantle, the baring pole has a shape selected from a group consisting of intersecting-shape, arc-shape, and fin-shape. 
   
   
       3 . The fixing device of catalyst substrate as claimed in  claim 1 , wherein the block is scraggy or corrugated, and has at least one groove attached on the substrate for preventing the substrate sliding, and at least one protrusion spacing from the groove to form a vent hole. 
   
   
       4 . A fixing device of catalyst substrate, comprising:
 a silencer communicated with an exhausting route of an internal combustion engine, the silencer having at least one clapboard to divide inner space thereof for forming a plurality of expanding rooms, which are communicated with each other and configured for guiding waste gas, the clapboard having at least one block formed thereon; and   a catalyst mantle integrated on the clapboard, the catalyst mantle having an admission terminal and an exhaust terminal communicated with the plurality of expanding rooms, a substrate having catalyst coated thereon being arranged in the catalyst mantle between the admission terminal and the exhaust terminal, the block being configured for preventing the substrate sliding to the exhaust terminal.   
   
   
       5 . The fixing device of catalyst substrate as claimed in  claim 4 , wherein the block is a baring pole integrated on the exhaust terminal of the catalyst mantle, the baring pole has a shape selected from a group consisting of intersecting-shape, arc-shape, and fin-shape. 
   
   
       6 . The fixing device of catalyst substrate as claimed in  claim 4 , wherein the block is scraggy or corrugated, and has at least one groove attached on the substrate for preventing the substrate sliding, and at least one protrusion spacing from the groove to form a vent hole.