Heat-shielding cover of exhaust system part and method of production thereof

Abstract

A heat-shielding cover operatively adapted for being installed adjacent to an exhaust system part (C) so as to cover the same; the heat-shielding cover including a fabric ( 10 ) provided with a prescribed shape and comprising inorganic fibers, and a mixture ( 11 ) that impregnates the fabric ( 10 ), with the mixture comprising an inorganic binder, inorganic filler particles and water. The mixture is dried so as to be rigid enough to maintain the shape of the fabric ( 10 ). The heat-shielding cover covers an exhaust system part, where the heat-shielding cover has a simple structure, is less likely to be, or is not, subject to warping in the place of installation due to thermal expansion and contraction of the heat-shielding cover, and moreover is less, or is not, susceptible to galvanic corrosion, even as a result of direct installation using an installation member.

1 . A heat-shielding cover operatively adapted for being installed adjacent to an exhaust system part so as to cover the same, the heat-shielding cover comprising:
 a fabric provided with a prescribed shape and comprising inorganic fibers; and   a mixture that impregnates the fabric, with the mixture comprising an inorganic binder, inorganic filler particles and water,   wherein the mixture is dried so as to be rigid enough to maintain the shape of the fabric.   
     
     
         2 . The heat-shielding cover according to  claim 1 , wherein the fabric is provided with at least a portion overlaid in multiple layers. 
     
     
         3 . The heat-shielding cover according to  claim 1 , wherein the inorganic filler particles comprise any particulate, when mixed with the inorganic binder in the presence of water, that causes a substantial portion of the inorganic binder to be retained in the fabric. 
     
     
         4 . The heat-shielding cover according to  claim 1 , wherein the fabric is a woven fabric, knitted fabric or a combination of both types of fabric. 
     
     
         5 . The heat-shielding cover according to  claim 1 , wherein the pliable binder wrap comprises in the range of from about 1% to about 35% inorganic binder particles, from about 5% to about 75% inorganic filler particles, and from about 25% to about 65% of the inorganic fibers of the fabric, with each percentage being on a dry weight basis. 
     
     
         6 . The heat-shielding cover according to  claim 1  further comprising at least one installation member used to install the heat-shielding cover adjacent to an exhaust system part. 
     
     
         7 . An exhaust system comprising an exhaust system part and the heat-shielding cover according to  claim 1  installed adjacent to the exhaust system part so as to cover the same. 
     
     
         8 . A method of production of the heat-shielding cover according to  claim 1 :
 a step of molding the fabric impregnated with the mixture into the prescribed shape using at least one die; and   a step of heating at least one die to dry the mixture so as to be rigid enough to maintain the shape of the fabric.   
     
     
         9 . The method of production according to  claim 8 , wherein releasing means not easily adhered to by the mixture is interposed between each die and the impregnated fabric. 
     
     
         10 . The heat-shielding cover according to  claim 2 , wherein the inorganic filler particles comprise any particulate, when mixed with the inorganic binder in the presence of water, that causes a substantial portion of the inorganic binder to be retained in the fabric. 
     
     
         11 . The heat-shielding cover according to  claim 2 , wherein the fabric is a woven fabric, knitted fabric or a combination of both types of fabric. 
     
     
         12 . The heat-shielding cover according to  claim 3 , wherein the fabric is a woven fabric, knitted fabric or a combination of both types of fabric. 
     
     
         13 . The heat-shielding cover according to  claim 2 , wherein the pliable binder wrap comprises in the range of from about 1% to about 35% inorganic binder particles, from about 5% to about 75% inorganic filler particles, and from about 25% to about 65% of the inorganic fibers of the fabric, with each percentage being on a dry weight basis. 
     
     
         14 . The heat-shielding cover according to  claim 3 , wherein the pliable binder wrap comprises in the range of from about 1% to about 35% inorganic binder particles, from about 5% to about 75% inorganic filler particles, and from about 25% to about 65% of the inorganic fibers of the fabric, with each percentage being on a dry weight basis. 
     
     
         15 . The heat-shielding cover according to  claim 4 , wherein the pliable binder wrap comprises in the range of from about 1% to about 35% inorganic binder particles, from about 5% to about 75% inorganic filler particles, and from about 25% to about 65% of the inorganic fibers of the fabric, with each percentage being on a dry weight basis. 
     
     
         16 . The heat-shielding cover according to  claim 2  further comprising at least one installation member used to install the heat-shielding cover adjacent to an exhaust system part. 
     
     
         17 . The heat-shielding cover according to  claim 3  further comprising at least one installation member used to install the heat-shielding cover adjacent to an exhaust system part. 
     
     
         18 . The heat-shielding cover according to  claim 4  further comprising at least one installation member used to install the heat-shielding cover adjacent to an exhaust system part. 
     
     
         19 . The heat-shielding cover according to  claim 5  further comprising at least one installation member used to install the heat-shielding cover adjacent to an exhaust system part. 
     
     
         20 . An exhaust system comprising an exhaust system part and the heat-shielding cover according to  claim 6  installed adjacent to the exhaust system part so as to cover the same.