Heat exchange component

Abstract

A heat exchange component includes a honeycomb structure having partition walls extending through the honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid, and including a ceramic material as a main component, a covering member made of a metal and fitted into a circumference of the honeycomb structure, a tubular passing portion disposed to come in contact with a circumference of the covering member and forming a through channel of a second fluid, and a circumferential passing portion disposed in a circumference of the tubular passing portion, containing the tubular passing portion, and constituting a through channel through which a third fluid is passed to come in contact with the tubular passing portion and the covering member.

What is claimed is: 
     
         1 . A heat exchange component comprising:
 a honeycomb structure having partition walls extending through the honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid, and including a ceramic material as a main component;   a covering member made of a metal and fitted into a circumference of the honeycomb structure;   a second fluid passing portion disposed to come in contact with a circumference of the covering member and forming a through channel of a second fluid; and   a third fluid passing portion disposed in a circumference of the second fluid passing portion, containing the second fluid passing portion and forming a through channel through which a third fluid is passed to come in contact with the second fluid passing portion and the covering member.   
     
     
         2 . The heat exchange component according to  claim 1 ,
 wherein the second fluid passing portion is a tubular passing portion, and the tubular passing portion is wound around the circumference of the covering member to come in contact with the circumference and is spirally disposed.   
     
     
         3 . The heat exchange component according to  claim 1 ,
 wherein the second fluid passing portion is a tubular passing portion, and the tubular passing portion is disposed to come in contact with the circumference of the covering member in a meandering manner.   
     
     
         4 . The heat exchange component according to  claim 1 ,
 wherein the second fluid passing portion is disposed to come in contact with the circumference of the covering member in a lattice manner.   
     
     
         5 . The heat exchange component according to  claim 1 ,
 wherein (a contact area between the second fluid passing portion and the covering member)/(a circumferential surface area of the honeycomb structure) is from 0.01 to 0.3.   
     
     
         6 . The heat exchange component according to  claim 1 ,
 wherein (a contact surface area of the second fluid passing portion which comes in contact with the third fluid)/(a volume of the second fluid passing portion) is from 0.3 to 0.8.   
     
     
         7 . The heat exchange component according to  claim 1 ,
 wherein a distance between a tubular passing portion and the adjacent tubular passing portion forming the second fluid passing portion is from 0.3 to 7.0 mm.