Heat exchanger

1. A heat exchanger for coupling a first fluid to a second fluid so as to transfer heat in a fluidically separate manner, the heat exchanger comprising:

a fluid collector ( 2 ) for collecting fluid,

a multiphase distributor ( 3 ) for distributing fluid,

a first flow path ( 4 ) for the first fluid,

a plurality of multi-duct tubes ( 6 ), which each have a duct tube longitudinal axis ( 7 ) and which each lead into the multiphase distributor ( 3 ) via a distributor orifice ( 8 ) and into the fluid collector ( 2 ) via a collector orifice ( 9 ),

wherein a second flow path ( 5 ) for the second fluid extends through the multi-duct tubes ( 6 ), the fluid collector ( 2 ), and the multiphase distributor ( 3 ),

wherein the multi-duct tubes ( 6 ) extend through the first flow path ( 4 ) for the first fluid in a configuration to allow the first fluid to flow around the multi-duct tubes and to allow the second fluid to flow, in a hermetically sealed manner, through the multi-duct tubes ( 6 ), respectively;

wherein the fluid collector ( 2 ) has a cylindrical tubular body ( 10 ) located therein with a hollow interior for guiding the second fluid, wherein the tubular body ( 10 ) has a tubular-body longitudinal axis ( 11 ) and exactly two opening arrangements ( 12 , 14 , 16 ) forming a plurality of individual openings ( 13 ) penetrating the tubular body ( 10 ) transversely to the tubular-body longitudinal axis ( 11 ) and spaced apart from one another along the tubular-body longitudinal axis ( 11 );

wherein the two opening arrangements ( 12 , 14 , 16 ) are a first opening arrangement ( 12 , 14 ) and a second opening arrangement ( 12 , 16 ),

wherein the individual openings ( 13 ) of the first opening arrangement ( 12 , 14 ) are spaced apart from one another along the tubular-body longitudinal axis ( 11 ) by a first distance ( 15 ) measured from centers of adjacent ones of the individual openings of the first opening arrangement,

wherein the individual openings ( 13 ) of the second opening arrangement ( 12 , 16 ) are spaced apart from one another along the tubular-body longitudinal axis ( 11 ), by a second distance ( 17 ), measured from centers of adjacent ones of the individual openings of the second opening arrangement,

wherein the first distance ( 15 ) of the individual openings ( 13 ) of the first opening arrangement ( 12 , 14 ) is smaller than the second distance ( 17 ) of the individual openings ( 13 ) of the second opening arrangement ( 12 , 16 );

wherein each of the individual openings ( 13 ) of the first opening arrangement ( 12 , 14 ) has a first opening cross-section ( 32 ),

wherein each of the individual openings ( 13 ) of the second opening arrangement ( 12 , 16 ) has a second opening cross-section ( 33 ), the first opening cross-section ( 32 ) being smaller than the second opening cross-section ( 33 ); and

wherein, in the course of a heating operation ( 22 ) of the heat exchanger ( 1 ), during which heat is transferred from the second fluid to the first fluid, the fluid collector ( 2 ) is arranged in the second flow path ( 5 ) downstream from the multiphase distributor ( 3 ), and the heat exchanger is configured to pass the second fluid first through the multiphase distributor ( 3 ), then through the multi-duct tubes ( 6 ), and then through the fluid collector ( 2 ).

2. The heat exchanger according to claim 1 ,

wherein, in the course of a cooling operation ( 23 ) of the heat exchanger ( 1 ), during which heat is transferred from the first fluid to the second fluid, the fluid collector ( 2 ) is arranged in the second flow path ( 5 ) upstream of the multiphase distributor ( 3 ), and the heat exchanger is configured to pass the second fluid first through the fluid collector ( 2 ), then through the multi-duct tubes ( 6 ), and then through the multiphase distributor ( 3 ).

3. The heat exchanger according to claim 1 , wherein the tubular body ( 10 ) has a tubular-body cross-section which is c-shaped.

4. The heat exchanger according to claim 1 ,

wherein the first distance ( 15 ) is half as long as the second distance ( 17 ).

5. The heat exchanger according to claim 1 , wherein the first distance ( 15 ) of the individual openings ( 13 ) of the first opening arrangement ( 12 , 14 ) is between 49 mm and 59 mm, and wherein the second distance ( 17 ) of the individual openings ( 13 ) of the second opening arrangement ( 12 , 16 ) is between 98 mm and 118 mm.

6. The heat exchanger according to claim 1 , wherein the first cross-section defines a first opening area and the second cross-section defines a second opening area, the second opening area being twice as large as the first opening area.

7. The heat exchanger according to claim 1 , wherein the individual openings ( 13 ) of the first opening arrangement ( 12 , 14 ) each have an opening diameter between 4.26 mm and 5.26 mm, and wherein the individual openings ( 13 ) of the second opening arrangement ( 12 , 16 ) have opening diameters alternating between a first diameter of 4.26 mm to 5.26 mm and a second diameter of 5.75 mm to 6.95 mm, which alternate along the tubular-body longitudinal axis ( 11 ).

8. The heat exchanger according to claim 1 ,

wherein the duct tube longitudinal axes ( 7 ) of the multi-duct tubes ( 6 ) are aligned transverse to the tubular-body longitudinal axis ( 11 ) of the tubular body ( 10 ) of the fluid collector ( 2 ).

9. The heat exchanger according to claim 8 ,

wherein the duct tube longitudinal axes ( 7 ) of the multi-duct tubes ( 6 ) are aligned transverse to the distributor tubular-body longitudinal axis ( 19 ) of the distributor tubular body ( 18 ) of the multiphase distributor ( 3 ).