Multi tube heat exchanger

Abstract

Heat exchanger for heat exchange or heat recovery in systems such as refrigeration or heat pump systems, in particular a condenser or evaporator in such systems The heat exchanger is shaped of a multi-port aluminium extrusion ( 8 ) by bending and forming parallel loops. Each of the ends of the extrusion ( 8 ) are finally bent such that they are facing each other and are connected at an offset of one port or hole ( 9 ) and thereby creating a single helical loop unit with inlet and outlet ports ( 15 respectively 16 ).

1 - 5 . (canceled) 
     
     
         6 . Heat exchanger for heat exchange or heat recovery in systems such as refrigeration or heat pump systems, in particular a condenser or evaporator in such systems, the heat exchanger being shaped of a multi-port aluminium extrusion by bending and forming parallel loops, wherein
 each of the ends of the extrusion are finally bent such that they are facing each other and are connected at an offset of one port or hole and thereby creating a single helical loop unit with inlet and outlet ports.   
     
     
         7 . Heat exchanger according to  claim 6 , wherein the ports are connected by means of small connecting tubes inserted and brazed in between the ports or holes facing each other from each end of the extrusion. 
     
     
         8 . Heat exchanger according to  claim 6 , wherein
 the inlet and outlet ports each are provided with pipe connectors which are braced thereto.   
     
     
         9 . Heat exchanger according to  claim 6 , wherein
 the ends of the extrusion is mechanically processed to remove excess material between the ports of the extrusion whereby the ports as such are used as connectors.   
     
     
         10 . Heat exchanger according to  claim 6 , wherein
 the connecting tubes and inlet/outlet connectors of a suitable material such as aluminium or copper.   
     
     
         11 . Heat exchanger according to  claim 7 , wherein
 the connecting tubes and inlet/outlet connectors of a suitable material such as aluminium or copper.   
     
     
         12 . Heat exchanger according to  claim 8 , wherein
 the connecting tubes and inlet/outlet connectors of a suitable material such as aluminium or copper.