Heat Exchanger

Abstract

The invention relates to a heat exchanger ( 1 ), in particular for a motor vehicle, having at least one inlet ( 2 ) and one outlet for the medium which is to be cooled or heated and/or the medium which provides the cooling or heating action, wherein the inlet ( 2 ) is designed such that, upon entering the heat exchanger ( 1 ), the flowing medium has imparted to it a movement component in the tangential direction with respect to the preceding normal movement direction and/or with respect to the main movement direction directly adjacent to the inlet. According to the invention, a swirl body ( 5 ) is preferably provided in the inlet ( 2 ).

1 . A heat exchanger, in particular for a motor vehicle, having at least one inlet and an outlet for the medium to be cooled or heated and/or the cooling medium or the medium to be heated, wherein the inlet is embodied in such a way that the flowing medium is given a movement component in the tangential direction with respect to the previous normal direction of movement and/or the main direction of movement directly adjoining the inlet, when said medium enters the heat exchanger. 
   
   
       2 . The heat exchanger as claimed in  claim 1 , wherein a diffuser is provided or formed in the region of the inlet. 
   
   
       3 . The heat exchanger as claimed in  claim 1 , wherein a flow duct swirl body arrangement, in particular a diffuser with swirl body, is provided in the inlet. 
   
   
       4 . The heat exchanger as claimed in  claim 1 , wherein the flow is given a tangential component in the flow duct swirl body arrangement, wherein the tangential component is larger at the outer circumference than in the center. 
   
   
       5 . The heat exchanger as claimed in  claim 3 , wherein the swirl body has repeating sections which are arranged evenly distributed in the circumferential direction, serve as baffle elements and are embodied such that they extend in the direction of flow in the inflow region, and in the outflow region they are embodied such that they extend obliquely with respect to the direction of flow in the inflow region. 
   
   
       6 . The heat exchanger as claimed in  claim 5 , wherein two to eight, in particular three to five, such sections are provided. 
   
   
       7 . The heat exchanger as claimed in  claim 1 , wherein the flow duct swirl body arrangement or the swirl body is fabricated from a metal or a metal alloy, in particular from aluminum or an aluminum alloy or stainless steel. 
   
   
       8 . The heat exchanger as claimed in  claim 1 , wherein the flow duct swirl body arrangement or the swirl body is soldered and/or welded to the heat exchanger. 
   
   
       9 . The heat exchanger as claimed in  claim 1 , wherein the inflow in the region of the inlet into a flow duct of the inlet region of the heat exchanger is provided in a tangential direction with respect to the flow duct. 
   
   
       10 . The heat exchanger as claimed in  claim 9 , wherein the inflow in the region of the inlet into a flow duct of the inlet region in the tangential direction is additionally provided with a component in the direction of the longitudinal axis of the flow duct. 
   
   
       11 . The heat exchanger as claimed in  claim 1 , wherein the heat exchanger is an exhaust gas cooler. 
   
   
       12 . The heat exchanger as claimed in  claim 1 , wherein the heat exchanger is a charge air cooler.