Fixing Device of Catalyst Substrate

Abstract

A fixing device includes a muffler and a catalyst mantle. The muffler is communicated with an exhausting route of an internal combustion engine. The muffler 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. At least one block is configured for preventing the substrate sliding to the exhaust terminal and a stopper is formed on the clapboard or an inner wall of the muffler for preventing the substrate sliding to the admission terminal. The fixing device improves the fixing capacity of the substrate, and decreases the manufacturing steps for arranging the catalyst mantle in the muffler.

1 . A fixing device of catalyst substrate, comprising:
 a muffler communicated with an exhausting route of an internal combustion engine, the muffler having at least one clapboard to divide an inner space thereof for forming a plurality of expanding rooms which are communicated with each other and configured for guiding waste gas;   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; and   a stopper formed on the clapboard or an inner wall of the muffler for preventing the substrate sliding to the admission 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 . The fixing device of catalyst substrate as claimed in  claim 1 , wherein the stopper is a curved stopping strip with two ends welded on the clapboard and an indention for receiving the substrate. 
   
   
       5 . The fixing device of catalyst substrate as claimed in  claim 1 , wherein the stopper is a curved stopping strip with two ends welded on the inner wall and a crowning for the substrate resting thereon, or the stopper is formed as a crowning portion of the inner wall for the substrate resting thereon. 
   
   
       6 . A fixing device of catalyst substrate, comprising:
 a muffler communicated with an exhausting route of an internal combustion engine, the muffler 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;   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; and   a stopper formed on the clapboard or on an inner wall of the muffler for preventing the substrate sliding to the admission terminal.   
   
   
       7 . The fixing device of catalyst substrate as claimed in  claim 6 , 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. 
   
   
       8 . The fixing device of catalyst substrate as claimed in  claim 6 , 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. 
   
   
       9 . The fixing device of catalyst substrate as claimed in  claim 6 , wherein the stopper is a curved stopping strip with two ends welded on the clapboard and an indention for receiving the substrate. 
   
   
       10 . The fixing device of catalyst substrate as claimed in  claim 6 , wherein the stopper is a curved stopping strip with two ends welded on the inner wall and a crowning for the substrate resting thereon, or the stopper is formed as a crowning portion of the inner wall for the substrate resting thereon.