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An air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with right and left seat zones includes an air conditioning box, in which an evaporator and a heat exchanger are arranged, as well as a cold air space situated between the evaporat

An air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with right and left seat zones includes an air conditioning box, in which an evaporator and a heat exchanger are arranged, as well as a cold air space situated between the evaporator and the heat exchanger. A warm air space is arranged behind the heat exchanger and air mixing spaces are constructed for supplying the forward vehicle space and the rearward vehicle space with conditioned air. To provide a mutually independent temperature adjustment in the forward vehicle space and the rearward vehicle space, a separate air mixing space is assigned to each seat zone. The four air mixing spaces are connected with the warm and cold air spaces by one warm and one cold air flap respectively.

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What is claimed is: 1. Air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with one right seat zone and one left seat zone respectively, the air conditioner comprising: an air conditioning box, an evaporator arranged in the air condit

What is claimed is: 1. Air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with one right seat zone and one left seat zone respectively, the air conditioner comprising: an air conditioning box, an evaporator arranged in the air conditioning box, a heat exchanger arranged in the air conditioning box, a cold air space being situated between the evaporator and the heat exchanger, a warm air space providing a common supply of warm air to the forward vehicle space and rearward vehicle space being arranged behind the heat exchanger, air mixing spaces being controllably connected with the cold and warm air spaces for supplying conditioned air to the forward vehicle space and the rearward vehicle space, warm air flaps arranged downstream of the heat exchanger, and cold air flaps operatively arranged at upper and lower sides of the heat exchanger, wherein four air mixing spaces are provided so that a separate air mixing space is assigned to each seat zone in the forward vehicle space and the rearward vehicle space and for controllably connecting the four air mixing spaces to the cold air space and the warm air space, one of the warm air flaps and one of the cold air flaps each being provided for each of said air mixing spaces wherein the air mixing space of the forward vehicle space and of the rearward vehicle space are selectively communicatable to the warm air space via the warm air flaps, such that a leg space in the forward vehicle space is provided with the conditioned air in a manner not influenced by the conditioned air supplied to a leg space in the rearward vehicle space. 2. Air conditioner according to claim 1, wherein cold air flaps and warm air flaps pertaining to one of the air mixing spaces are restrictedly coupled with one another such that one of the air flaps maximally opens up an inlet of the one of the air mixing spaces when the other of the air flaps completely covers an inlet of the one of the air mixing space assigned to it and vice versa. 3. Air conditioner according to claim 1, wherein the evaporator and the heat exchanger have opposed surfaces aligned approximately parallel to one another, bounding the cold air space on opposite sides, and wherein two controllable cold air inlets of the four air mixing spaces, which can be controlled by the cold air flaps, are respectively arranged above and below the heat exchanger. 4. Air conditioner according to claim 1, wherein selected ones of the warm air inlets of the air mixing spaces, which are controllable by the warm air flaps, are arranged to enclose an acute non-zero angle with an output-side air passage surface of the heat exchanger. 5. Air conditioner according to claim 1, wherein the warm and cold air flaps are louver-type closings. 6. Air conditioner according to claim 1, wherein two of the air mixing spaces are for the forward vehicle space of the occupant compartment, one air duct respectively branches off to left and right outlet openings in the leg space in the forward vehicle space and one air duct respectively branches off to left and right outlet openings in a center plane in a front region of the occupant compartment, and one cold air duct, respectively, a shut-off flap, leads from the cold air space to each of two of the air ducts leading to the center plane in the front region of the occupant compartment. 7. Air conditioner according to claim 1, wherein one air duct leads to each of left and right outlet openings in a center plane in a rear of the occupant compartment and branches off of two of the air mixing spaces for the rearward vehicle space of the occupant compartment, one cold air duct, controllable by a shut-off flap, leads from the cold air space to each air duct which leads to the center plane in the rear. 8. Air conditioner according to claim 1, wherein an air duct, which leads to left and right outlet openings in the leg space of the rearward vehicle space, branches off of each of the air mixing spaces for the rearward vehicle space of the occupant compartment. 9. Air conditioner according to claim 1, wherein the air flaps which pertain to the air mixing spaces for the rearward vehicle space are coupled with the air flaps pertaining to the air mixing spaces for the forward vehicle space. 10. Air conditioner according to claim 2, wherein the evaporator and the heat exchanger have opposed surfaces aligned approximately parallel to one another, bounding the cold air space on opposite sides, and wherein two controllable cold air inlets of the four air mixing spaces, which can be controlled by the cold air flaps, are respectively arranged above and below the heat exchanger. 11. Air conditioner according to claim 10, wherein two of the cold air inlets of the four air mixing spaces, are controllable by the cold air flaps that are situated in a plane of the heat exchanger. 12. Air conditioner according to claim 2, wherein two of the warm air inlets of the four air mixing spaces, are controllable by the warm air flaps and are situated in a plane which encloses an acute non-zero angle with an output-side air passage surface of the heat exchanger. 13. Air conditioner according to claim 4, wherein the warm and cold air flaps are louver-type closings. 14. Air conditioner according to claim 2, wherein two of the air mixing spaces are for the forward vehicle space of the occupant compartment, one air duct respectively branches off to left and right outlet openings in the leg space of the forward vehicle space and one air duct respectively branches off to left and right outlet openings in a center plane in a front region of the occupant compartment, and one cold air duct, respectively, which can be controlled by a shut-off flap, leads from the cold air space to each of two of the air ducts leading to the center plane in the front region of the occupant compartment. 15. Air conditioner according to claim 2, wherein one air duct leads to each of left and right outlet openings in a center plane in a rear of the occupant compartment and branches off of two of the air mixing spaces for the rearward vehicle space of the occupant compartment, one cold air duct, which can be controlled by a shut-off flap, leads from the cold air space to each air duct which leads to the center plane in the rear. 16. Air conditioner according to claim 2, wherein an air duct, which leads to left and right outlet openings in the leg space of the rearward vehicle space, branches off of each of the air mixing spaces for the rearward vehicle space of the occupant compartment. 17. Air conditioner according to claim 2, wherein the air flaps which pertain to the air mixing spaces for the rearward vehicle space are coupled with the air flaps pertaining to the air mixing spaces for the forward vehicle space. 18. Air conditioner according to claim 3, wherein two of the air mixing spaces are for the forward vehicle space of the occupant compartment, one air duct respectively branches off to left and right outlet openings in the leg space of the forward vehicle space and one air duct respectively branches off to left and right outlet openings in a center plane in a front region of the occupant compartment, and one cold air duct, respectively, which can be controlled by a shut-off flap, leads from the cold air space to each of two of the air ducts leading to the center plane in the front region of the occupant compartment. 19. Air conditioner according to claim 3, wherein one air duct leads to each of left and right outlet openings in a center plane in a rear region of the occupant compartment and branches off of two of the air mixing spaces for the rearward vehicle space of the occupant compartment, one cold air duct, which can be controlled by a shut-off flap, leads from the cold air space to each air duct which leads to the center plane in the rear region. 20. Air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with one right seat zone and one left seat zone respectively, the air conditioner comprising: an air conditioning box, an evaporator arranged in the air conditioning box, a heat exchanger arranged in the air conditioning box, a cold air space being situated between the evaporator and the heat exchanger, a warm air space being arranged behind the heat exchanger, air mixing spaces being controllably connected with the cold and warm air spaces for supplying conditioned air to the forward vehicle space and the rearward vehicle space, warm air flaps arranged downstream of the heat exchanger, and cold air flaps operatively arranged at upper and lower sides of the heat exchanger, wherein four air mixing spaces are provided so that a separate air mixing space is assigned to each seat zone in the forward vehicle space and the rearward vehicle space and for controllably connecting the four air mixing spaces to the cold air space and the warm air space, one of the warm air flaps and one of the cold air flaps each being provided for each of said air mixing spaces wherein the air mixing space of the forward vehicle space and of the rearward vehicle space are selectively communicatable to the warm air space via the warm air flaps, such that a leg space in the forward vehicle space is provided with the conditioned air in a manner not influenced by the conditioned air supplied to a leg space in the rearward vehicle space, wherein the evaporator and the heat exchanger have opposed surfaces aligned approximately parallel to one another, bounding the cold air space on opposite sides, and wherein two controllable cold air inlets of the four air mixing spaces, which can be controlled by the cold air flaps, are respectively arranged above and below the heat exchanger, and two of the cold air inlets of the four air mixing spaces are controllable by the cold air flaps that are situated in a plane of the heat exchanger.