Heating device

Abstract

The invention relates to a heating device comprising at least one heat exchanger that spirals helically around a spiral axis, is traversed by a heating medium and is configured as a flat tube comprising ends of the spiral on the feed flow and return flow sides and heating medium connections, said heat exchanger defining a corresponding spiral-shaped flow opening. A cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on the housing. At least one end of the spiral is obliquely truncated in relation to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configuration. Preferably, the heating medium connection on the cap-type sealing housing runs in the direction of the spiral axis.

1 - 12 . (canceled) 
   
   
       13 . A heating device, comprising at least one heat exchanger that spirals helically around a spiral axis, is traversed by a heating medium and is configured as a flat tube comprising ends of a spiral on a feed flow side and a return flow side and heating medium connection, said heat exchanger defining a corresponding spiral-shaped flow opening, wherein a sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing, wherein at least one end of the spiral is obliquely truncated in relation to the spiral axis and an end of the sealing housing attached to the spiral has a corresponding inverse oblique configuration. 
   
   
       14 . The heating device according to  claim 13 , wherein at least two helically spiralling heat exchangers are guided parallel to one another and intertwined with one another, wherein the sealing housing is configured as a distributor housing and is set in a liquid-tight manner against ends of the spirals, wherein the ends of the spirals of the heat exchangers are each arranged in pairs flush and adjacent to one another, wherein edges of adjacently extending walls are connected to one another in a liquid-tight manner. 
   
   
       15 . The heating device according to  claim 14 , wherein the edges are connected flush to one another. 
   
   
       16 . The heating device according to  claim 15 , wherein the edges are welded to one another. 
   
   
       17 . The heating device according to  claim 13 , wherein the heating medium connection on the sealing housing is aligned so that it is oriented in the direction of the spiral axis. 
   
   
       18 . The heating device according to  claim 13 , wherein the sealing housing in side view and therefore perpendicular to the spiral axis is configured substantially as a right-angled triangle, wherein the hypotenuse of the triangle is connected in a liquid-tight manner to an end of the spiral. 
   
   
       19 . The heating device according to  claim 18 , wherein the heating medium connection is arranged on a larger side of the triangle. 
   
   
       20 . The heating device according to  claim 13 , wherein the sealing housing and the heating medium connection are configured in a form of a cast part 
   
   
       21 . The heating device according to  claim 13 , wherein the sealing housing and the heating medium connection are configured in a form of a precision cast part. 
   
   
       22 . The heating device according to  claim 13 , wherein the sealing housing is configured as sheet metal parts and the heating medium connection is configured as connecting pieces set against the sheet metal parts. 
   
   
       23 . The heating device according to  claim 13 , wherein the sealing housing is configured in a form of a deep-drawn part. 
   
   
       24 . The heating device according to  claim 13 , wherein according to a section viewed transversely to a flow direction of the heating medium, the sealing housing is configured as substantially corresponding to at least one spiral-end opening cross-section. 
   
   
       25 . The heating device according to  claim 13 , wherein sealing housing sealing walls opposite to the spiral ends are configured as concavely curved at least on a side attached to the heating medium. 
   
   
       26 . The heating device according to  claim 13 , wherein at least one heat exchanger encloses a combustion chamber which, when viewed in a direction of the spiral axis, is delimited by respectively one sealing wall, wherein a housing formed from a jacket part and sealing walls surrounds the heat exchanger forming an exhaust gas chamber.