Assembly for air distribution for an air conditioning system of an automobile

1. An arrangement for air distribution of an air conditioning system ( 1 ) of a motor vehicle, the arrangement comprising:

a housing ( 2 ) with at least two flow paths ( 6 , 7 ) which empty into a mixing chamber ( 8 ), at least one air outlet ( 3 a , 3 b , 3 c ), at least one air flap ( 10 , 11 , 12 ) which can open and close the at least one air outlet ( 3 a , 3 b , 3 c );

a door ( 18 ) for air mixing including at least one air resistance element ( 21 supported to turn about an axis of rotation ( 20 ) and extending in a direction of the axis of rotation ( 20 ), wherein the at least one air resistance element ( 21 ) is configured with at least one flow through opening so that depending on a position of the door ( 18 ), a cross section of at least one of the at least two flow paths ( 6 , 7 ) of the housing ( 2 ) can be changed, and wherein the door ( 18 ) is configured to be coupled via connection elements to at least one of the at least one air flap ( 10 , 11 , 12 ) so a position of the at least one air resistance element ( 21 ) is changed with a movement of the at least one air flap ( 10 , 11 , 12 ), wherein the door ( 18 ) includes a shaft ( 22 ) having a longitudinal axis coinciding with the axis of rotation ( 20 ), wherein each of the at least one air resistance elements ( 21 ) includes a cross-sectional shape of a segment of a circle with an end of the segment of the circle intersecting the shaft ( 22 ) of the door ( 18 ), and wherein a radius of curvature of each of the at least one air resistance elements ( 21 ) is defined by an axis arranged parallel to and spaced apart from the axis of rotation ( 20 ).

2. The arrangement according to claim 1 , wherein the at least one air resistance element ( 21 ) and the at least one air flap ( 10 , 11 , 12 ) are coupled together wherein the air resistance element ( 21 ) is arranged in a first end position changing the cross section of the at least one of the at least two flow paths ( 6 ), while one of the at least one air flap ( 12 ) is arranged primarily closing one of the at least one air outlet ( 3 c ), and in a second end position the air resistance element ( 21 ) is arranged not changing the cross section of the at least one of the at least two flow paths ( 6 ), while the one of the at least one air flap ( 12 ) is arranged opening the one of the at least one air outlet ( 3 c ).

3. The arrangement according to claim 2 , wherein there are three air flaps ( 10 , 11 , 12 ) and three air outlets ( 3 a , 3 b , 3 c ), wherein the air resistance element ( 21 ) in the first end position is arranged not changing the cross section of a second one of the at least two flow paths ( 7 ), while at least one of other of the air flaps ( 10 , 11 ) is arranged opening at least one of other of the air outlets ( 3 a , 3 b ), and in the second end position the air resistance element ( 21 ) is arranged changing the cross section of the second one of the at least two flow paths ( 7 ), while the at least one of other of the air flaps ( 10 , 11 ) is arranged closing the at least one of other of the air outlets ( 3 a , 3 b ).

4. The arrangement according to claim 1 , wherein the at least one air resistance element ( 21 ) of the door ( 18 ) includes four side edges oriented perpendicular to the longitudinal axis of the shaft ( 22 ), and wherein one of the side edges is a front side and is disposed directly on the shaft ( 22 ) and rigidly joined to the shaft ( 22 ).

5. The arrangement according to claim 1 , wherein the door ( 18 ) has a plurality of air resistance elements ( 21 ) spaced apart from each other in the direction of the axis of rotation ( 20 ) so a free space is formed between the plurality of air resistance elements ( 21 ) as a through flow opening.

6. An air conditioning system ( 1 ) for a motor vehicle with means of delivering, cooling and heating of air, the air conditioning system comprising:

a housing ( 2 ) with at least two flow paths ( 6 , 7 ) which empty into a mixing chamber ( 8 ), wherein an air mass flow taken through a first one of the at least two flow paths ( 6 ) has a first temperature and an air mass flow taken through a second one of the at least two flow paths ( 7 ) has a second temperature,

air outlets ( 3 a , 3 b , 3 c ), wherein the air mass flow taken through a first one of the at least two flow paths ( 6 ) and the air mass flow taken through a second one of the at least two flow paths ( 7 ) can be guided by the at least two flow paths ( 6 , 7 ) and the mixing chamber ( 8 ) to the air outlets ( 3 a , 3 b , 3 c ), and wherein a cross section of at least one of the at least two flow paths ( 6 , 7 ) of the housing ( 2 ) can be changed, and

a door ( 18 ) for air mixing having air resistance elements ( 21 ) supported to turn about an axis of rotation ( 20 ), the door ( 18 ) including a shaft ( 22 ) having a longitudinal axis coinciding with the axis of rotation ( 20 ), wherein each of the air resistance elements ( 21 ) includes a cross-sectional shape of a segment of a circle with an end of the segment of the circle intersecting the shaft ( 22 ) of the door ( 18 ), and wherein a radius of curvature of each of the air resistance elements ( 21 ) is defined by an axis arranged parallel to and spaced apart from the axis of rotation ( 20 ).

7. The air conditioning system ( 1 ) according to claim 6 , wherein the air resistance elements ( 21 ) are arranged at a margin or an outside of an air mass flow through the mixing chamber ( 8 ) depending on a rotational position of the door ( 18 ) for air mixing and a position of the axis of rotation ( 20 ) of the door ( 18 ).