Heating configuration for a drier

Abstract

A heating configuration for a drier, particularly a laundry drier, has a burner with a burner head, a first heating channel with an inlet opening and an outlet opening, and a second heating channel with an inlet opening and an outlet opening. The cross-sectional area of the second heating channel is greater than the cross-sectional area of the first heating channel. The burner projects through its inlet opening into the first heating channel and an outlet portion of the first heating channel projects into an inlet portion of the second heating channel. A guide device is provided in an upper section of the first heating channel adjacent to the outlet opening thereof in order to downwardly deflect hot gases which flow from the burner head in a direction towards the outlet opening of the second heating channel.

1 . A heating configuration, comprising: 
 a burner with a burner head;    a first heating channel having an inlet portion formed with an inlet opening and an outlet portion formed with an outlet opening;    a second heating channel having an inlet portion formed with an inlet opening and an outlet portion formed with an outlet opening;    said second heating channel having a cross-sectional area greater than a cross-sectional area of said first heating channel, said outlet portion of said first heating channel projecting into said inlet portion of said second heating channel, and said burner projecting into said first heating channel through said inlet opening thereof; and    a flow guide in an upper part of said first heating channel adjacent said outlet opening thereof and configured to downwardly deflect a flow of gas flowing in a direction from said burner head towards said outlet opening of said second heating channel.    
   
   
       2 . The heating configuration according to  claim 1 , wherein said burner head is disposed in said first heating channel.  
   
   
       3 . The heating configuration according to  claim 1 , wherein said flow guide comprises an inclined wall extending with a downward slope in the direction from said upper part of said first heating channel between said inlet and outlet openings thereof to said outlet opening of said first heating channel.  
   
   
       4 . The heating configuration according to  claim 3 , wherein said inclined wall is an inwardly deformed portion of a wall of said first heating channel.  
   
   
       5 . The heating configuration according to  claim 1 , wherein said outlet portion of said first heating channel is downwardly offset towards a lower side of said second heating channel.  
   
   
       6 . The heating configuration according to  claim 1 , wherein a part of said burner projecting into said first heating channel is disposed substantially in a lower part of said first heating channel.  
   
   
       7 . The heating configuration according to  claim 1 , wherein a first air entry is formed between a perimeter of said inlet opening of said first heating channel and said burner, and a second air entry is formed between a perimeter of said inlet opening of said second heating channel and a perimeter of an outlet portion of said first heating channel.  
   
   
       8 . The heating configuration according to  claim 1 , which further comprises a deflection channel connected to said outlet opening of said second heating channel and disposed to upwardly deflect gases flowing from said second heating channel.  
   
   
       9 . The heating configuration according to  claim 8 , wherein said deflection channel has an inclined surface extending obliquely upwardly from a lower side of said deflection channel.  
   
   
       10 . The heating configuration according to  claim 1 , which comprises an air conveying device disposed downstream of said outlet opening of said second heating channel with respect to a direction of a flow of gases out of said second heating channel.  
   
   
       11 . The heating configuration according to  claim 1 , wherein said outlet portion of said first heating channel has a base portion connected to a base portion of said inlet portion of said second heating channel.  
   
   
       12 . The heating configuration according to  claim 1 , wherein said burner and said heating channels are configured for assembly in a drier apparatus.  
   
   
       13 . In combination with a laundry drier, the heating configuration according to  claim 1.