Cooling air control device for a motor vehicle

Abstract

Cooling air control device for a motor vehicle, comprising several flaps (26) arranged side by side, which are rotatably mounted in a housing (2), wherein the flaps (26) each have an axis of rotation (10) about which they are rotatably arranged, and wherein the flaps (26) are at least partially rotatable in the opposite direction, and wherein a lever system (15) is formed which is operatively connected to the flaps (26), wherein the lever system (15) is operatively connected to an actuator (7), and wherein the lever system (15) is designed to change its position by means of the actuator (7), wherein the flaps (26) are alignable according to the positioning of the lever system (15), and wherein the flaps (26) are divided into a first set of flaps (8) and a second set of flaps (9), which are arranged side by side in the housing (2), characterized in thatthat, in order to bring about different arrangements of the flaps (26) relative to each other, a first lever subsystem (16) of the lever system (15) and a second lever subsystem (17) of the lever system (15) are formed, wherein the first lever subsystem (16) and the second lever subsystem (17) are connected to a first set of flaps (8) and / or to a second set of flaps (9), and wherein the first lever subsystem (16) and the second lever subsystem (17) are arranged opposite each other, wherein the flaps (26) are arranged between the lever subsystems (16, 17) and are operatively connected to the lever subsystems (16, 17).

Description

[0001] The invention relates to a cooling air control device for a motor vehicle according to the preamble of claim 1.

[0002] Cooling air control devices for motor vehicles are particularly well-known for use upstream of the radiator of an internal combustion engine in a motor vehicle. Furthermore, these devices are also used to supply cooling air to the braking systems of a motor vehicle. To achieve preferred cooling air flows, the vanes of the cooling air control device are designed to be movable, so that the cross-sectional area and / or direction of flow of the flow channel formed between each pair of vanes can be varied.

[0003] Patent DE 39 72 39 A discloses a cooling air control device for a motor vehicle, which has a first group of vanes and a second group of vanes, each of which can be rotated in opposite directions by means of a lever system. The lever systems are mechanically coupled to each other, so that movement of the vane group can be effected by a single actuator.

[0004] Furthermore, documents US 1,932,244 A and DE 199 37 153 C2 describe a cooling air control device with several rotatably designed flaps, wherein the flaps of the cooling air control device are divided into a first set of flaps and a second set of flaps and each can be pivoted about a vertical axis of rotation, wherein the flaps are connected to a common actuator via a lever system.

[0005] Documents DE 10 2017 000 401 A1 and WO 2014 / 064083 A1 also disclose a locking system with several rotatable flaps, which are divided into a first set of flaps and a second set of flaps, wherein the flaps of the first set of flaps are rotatable in the opposite direction to the flaps of the second set of flaps.

[0006] The object of the present invention is to provide a cost-effective cooling air control device for a motor vehicle, designed to produce different air mass flow patterns.

[0007] The object of the invention is achieved by a cooling air control device for a motor vehicle with the features of claim 1. Advantageous embodiments with expedient and non-trivial further developments of the invention are specified in the respective dependent claims.

[0008] A cooling air control device according to the invention for a motor vehicle has several flaps arranged side by side, which are rotatably mounted in a housing. Each flap has an axis of rotation about which it is rotatably arranged. The flaps are rotatable, at least partially, in opposite directions. A lever system is provided which is operatively connected to the flaps, wherein the lever system is operatively connected to an actuator, and wherein the position of the lever system can be changed by means of the actuator, and the flaps can be aligned according to the positioning of the lever system. The flaps are divided into a first set of flaps and a second set of flaps, which are arranged side by side in the housing.According to the invention, to achieve different arrangements of the flaps relative to each other, a first lever component system and a second lever component system of the lever system are provided, wherein the first lever component system and / or the second lever component system is connected to a first set of flaps and / or to a second set of flaps, and wherein the first lever component system and the second lever component system are arranged opposite each other. The advantage of the cooling air control device according to the invention is that, by means of a single flap assembly consisting of the flaps and the housing, a multitude of flap positions with different functionalities, such as synchronous or counter-rotating, can be formed using the lever system, which is divided into a first lever component system and a second lever component system.This means that cost-effective manufacturing can be achieved due to the large number of components of the cooling air control system.

[0009] The different flap positions can be achieved, for example, during assembly by positively interlocking the relevant flaps with the first lever part system or the second lever part system, or possibly by omitting unnecessary components.

[0010] In one embodiment of the cooling air control device according to the invention, a movable connection is provided between flaps of the first set of flaps and the first lever assembly, and / or between flaps of the second set of flaps and the first lever assembly at a first flap end facing the first lever assembly, and / or between flaps of the first set of flaps and the second lever assembly, and / or between flaps of the second set of flaps and the second lever assembly at a second flap end facing the second lever assembly, wherein the second flap end is positioned away from the first flap end. In principle, the lever assemblies could be connected to the flaps, which are configured as lamellar flaps, at different points on the flaps.However, if the flaps are movably connected at their ends, a free flow cross-section between the flaps, hereinafter referred to as the gap, can be created, thus preventing flow disturbances caused by, for example, turbulence. Furthermore, it is advantageous to connect the flaps to the respective lever systems at the ends of the flaps facing these lever systems, as this allows for rapid adjustment of the flaps due to the short lever lengths of the levers in the lever systems.

[0011] In a further embodiment of the cooling air control device according to the invention, a degressive and / or progressive air mass flow profile, relative to a certain opening degree of the cooling air control device, can be achieved using the lever system, which is divided into two lever subsystems. The advantage of these different air mass flow profiles lies in their effect on the drag coefficient of the vehicle body. Thus, with a degressive air mass flow profile, an increase in the drag coefficient can be expected in the range of small to medium opening degrees, whereas with a progressive air mass flow profile, a reduction in the drag coefficient can be expected in the range of small to medium opening degrees.

[0012] In a further embodiment of the cooling air control device according to the invention, a first lever kinematics of the first lever subsystem and a second lever kinematics of the second lever subsystem are identically constructed. This leads to a further reduction in costs, since the number of different components is significantly reduced.

[0013] In a further embodiment of the cooling air control device according to the invention, in a first operating state of the cooling air control device, a first lever kinematic of the first lever subsystem has a kinematic position which corresponds to a kinematic position of a second lever kinematic of the second lever subsystem in a second operating state of the cooling air control device. In this way, a cost-effective drive for the lever system can be implemented in a simple manner.

[0014] The cost-effective manufacture of the cooling air control device according to the invention, as well as its simple design, can be further improved by a common movement of the lever subsystems, in particular with a common shaft of the lever system, wherein a single actuator causes a rotation of the shaft.

[0015] In a further embodiment, the actuator is arranged centrally on a support of the housing, which, due to kinematic advantages, results in the same forces and moments being applied to each lever system for each rotational speed and degree of opening.

[0016] In an advantageous embodiment of the cooling air control device according to the invention, a first sub-section of the flaps is assigned to a drive unit of the motor vehicle, and a second sub-section and / or third sub-section are assigned to auxiliary units and / or brakes of the motor vehicle. In other words, in a segmented design embodiment of the cooling air control device according to the invention, different areas and units of the motor vehicle can be subjected to different airflow patterns.

[0017] Another advantage is the space-optimized integration of a sensor and / or driver assistance system within the housing. Typically, the cooling air control device is centrally located in the front of the vehicle body. If the driver assistance system and / or sensor can be integrated into the housing, they can be positioned directly facing the direction of travel. For example, sensors such as distance sensors can detect even the smallest gaps between a moving or stationary vehicle ahead.

[0018] Further advantages, features, and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. The features and combinations of features mentioned above in the description, as well as those mentioned below in the figure description and / or shown in the figures alone, can be used not only in the combinations specified, but also in other combinations or individually, without departing from the scope of the invention. Identical or functionally equivalent elements are assigned identical reference numerals. The figures show: Fig. 1 in a front view a cooling air control device according to the invention for a motor vehicle in a first embodiment in a first operating state, with assistance systems received in a carrier of a housing of the cooling air control device, Fig. 2 in a front view the cooling air control device according to the invention in a second embodiment in a second operating state, Fig. 3 in a rear view the cooling air control device acc. Fig. 2 in a second operating state, Fig. 4 in a bottom view a basic structure of a first lever subsystem of a lever system of the cooling air control device according to the invention in a first operating state, Fig. 5 in a bottom view of the basic structure of the first lever subsystem in a second operating state, Fig. 6 in a top view of the basic structure of a second lever subsystem of the lever system of the cooling air control device according to the invention in the first operating state, Fig. 7 in a top view the basic structure of the second lever subsystem in the second operating state, Fig. 8 in an air mass flow-flap opening degree diagram, an air mass flow curve flowing through the cooling air control device according to the invention, with increasing flap opening, becoming degressive, Fig. 9 in the air mass flow-flap opening degree diagram, an air mass flow profile with increasing flap opening through the cooling air control device according to the invention, Fig. 10 in a schematic diagram a first flap position with flaps rotating in the same direction section by section to bring about a degressive air mass flow, Fig. 11 in a schematic diagram a second flap position with flaps rotating in the same direction section by section to bring about a degressive air mass flow, Fig. 12 in a schematic diagram a third flap position with counter-rotating flaps to bring about a progressive air mass flow, Fig. 13 in a schematic representation a cumulative effect of the three valve positions according to the Fig. 10 to Fig. 12 for the cooling air control device according to the invention in segmented construction, Fig. 14a in a schematic representation the cooling air control device according to the invention in a third embodiment with the third flap position, Fig. 14b in a top view the second lever part system of the cooling air control device acc. Fig. 14a in the first operating state, Fig. 14c in a top view the second lever part system of the cooling air control device acc. Fig. 14a in the second operating state, Fig. 14d in a bottom view the first lever part system of the cooling air control device acc. Fig. 14a in the first operating state, Fig. 14e in a bottom view the first lever part system of the cooling air control device acc. Fig. 14a in the second operating state, Fig. 15a in a schematic representation the cooling air control device according to the invention in a fourth embodiment in segmented construction, Fig. 15b in a top view the second lever part system of the cooling air control device acc. Fig. 15a in the first operating state, Fig. 15c in a top view the second lever part system of the cooling air control device acc. Fig. 15a in the second operating state, Fig. 15d in a bottom view the first lever part system of the cooling air control device acc. Fig. 15a in the first operating state, Fig. 15e in a bottom view the first lever part system of the cooling air control device acc. Fig. 15a in the second operating state, Fig. 16a in a perspective view a section of the cooling air control device according to the invention in a fifth embodiment with the first flap position, Fig. 16b in a bottom view the first lever system of the cooling air control device acc. Fig. 16a in the first operating state, Fig. 16c in a bottom view the first lever system of the cooling air control device acc. Fig. 16a in the second operating state, Fig. 17 in a front view the cooling air control device according to the invention in a sixth embodiment, Fig. 18 in a front view the cooling air control device according to the invention in a seventh embodiment, Fig. 19 in a front view the cooling air control device according to the invention in an eighth embodiment, Fig. 20a in a top view the second lever part system of the cooling air control device in a further embodiment in the second operating state, Fig. 20b in a rear view the cooling air control device acc. Fig. 20a in the first operating state, and Fig. 20c in a bottom view the first lever part system of the cooling air control device acc. Fig. 20a in the second operating state.

[0019] A cooling air control device according to the invention 1 for a motor vehicle not shown in detail, in a first embodiment according to Fig. 1 designed. The cooling air control device 1 , which in a first operating state in a front view in Fig. 1 and in Fig. Figure 3, illustrated in a rear view, shows a frame-shaped housing. 2 on, which is a first framework section 3 and a second framework section 4 includes the first framework section 3 and the second framework section 4 along a first axis of symmetry 5 are mirror-symmetrical.

[0020] Between the first framework section 3 and the second framework section 4 is a carrier 6 arranged, which is the recording of an actuator 7 for adjusting inside the housing 2 rotatable first set of flaps 8 and second set of flaps 9 trained within the organization 6 of the case 2 are assistance systems 35 and sensors 36 of the motor vehicle.

[0021] Individual flaps 26 the sentences flaps 8 , 9 each have an axis of rotation 10 on, so that they can be rotated in the corresponding frame section 3 , 4 are recorded.

[0022] In Fig. 1 is the cooling air control device according to the invention. 1 shown in the first operating state, in which the individual flaps are separated. 26 the sentences flaps 8 , 9as well as between the framework sections 3 , 4 and the adjacent flaps 26 the sentences flaps 8 , 9 formed spaces 11 are fully open.

[0023] In Fig. 2 is the cooling air control device according to the invention. 1 in a second embodiment shown in a second operating state, in which the individual flaps 26 the sentences flaps 8 , 9 to completely close the gaps 11 are arranged. In other words, that is, starting from the position of the individual flaps. 26 the sentences flaps 8 , 9 In the first operating state, the individual flaps 26 the sentences flaps 8 , 9 for positioning in the position according to the second operating state about its axis of rotation 10 to be twisted, and vice versa. The carrier 6the cooling air control device 1 The second embodiment has no assistance systems or sensors.

[0024] For twisting the flaps 26 of the first sentence flaps 8 is coaxial with the first axis of symmetry 5 trained wave 12 rotatable on the carrier 6 recorded, which also involves a twisting of flaps 26 of the second set flaps 9 It serves this purpose. In other words, it is used to rotate flaps. 26 the sentences flaps 8 , 9 a single wave 12 required, which uses a single actuator 7 is activated.

[0025] The flaps 26 the sentences flaps 8 , 9 are equipped with a lever system 15 interconnected, whereby the lever system 15 a first lever system 16 and a second lever system 17features which are located opposite each other in the housing 2 are formed. Between the two lever subsystems 16 , 17 are the flaps 26 the sentences flaps 8 , 9 with the lever systems 16 , 17 Interconnected arrangement. Flaps. 26 of the first sentence flaps 8 are functionally linked to the first lever system 16 and flaps 26 of the second set flaps 9 are functionally connected to the second lever system 17 executed. In particular, the flaps 26 with the lever systems 16 , 17 They are positively connected. Furthermore, the flaps are 26 , which with the first lever system 16 are in functional connection, at their first valve ends 38 with the first lever system 16 and the flaps 26 , which with the second lever system 17are in functional connection at their second valve ends 39 , which are from the first flap ends 38 are trained, with the second lever system 17 tied together.

[0026] An assignment of flaps 26 of the first sentence flaps 8 and of flaps 26 of the second set flaps 9 to the lever systems 16 , 17 is according to the design of the cooling air control device to be achieved 1 freely selectable. In other words, this means that with a single basic design of the cooling air control device 1 numerous variants of the cooling air control device 1 are achievable, whereby the assignment of the flaps 26 to the lever systems 16 , 17 before commissioning the cooling air control device 1, ideally to be carried out before their installation in a motor vehicle body (not shown in detail).

[0027] In the Fig. 4 and Fig. 5 is a basic structure of the first lever subsystem 16 in a bottom view in a section in the area of ​​the support 6 illustrated, with in Fig. 4 which belong to the first lever subsystem 16 assigned flaps 26 in the first operating state and in Fig. 5 in the second operating state of the cooling air control device 1 This is shown. To indicate the direction of travel in a forward gear of the motor vehicle, an arrow FR is drawn, which shows the position of the sets of flaps. 8 , 9 the direction of travel is clear. Lever component systems are preferred. 16 , 17 along a second axis of symmetry 40 mirror-symmetrical in the frame sections 3 , 4trained.

[0028] The first lever system 16 includes a first lever kinematics 18 consisting of a first lever arm 19 , which is connected at one end to a second lever arm 20 the first lever kinematics 18 is movably connected, and on the other end with a third lever arm 21 the first lever kinematics 18 is movably connected. The first lever arm 19 is rotationally fixed to the shaft 12 connected, which means that if the shaft is twisted 12 around their shaft axis 14 is also designed to perform a rotational movement.

[0029] The second lever arm 20 is with a first rail 22 of the first lever system 16 , which belong to the first set of flaps 8 is assigned, movably connected, and the third lever arm 21 is with a second rail 23 of the first lever system 16, which belong to the second set of flaps 9 is assigned, movable and connected.

[0030] The second lever arm 20 and the first rail 22 are flaps in the direction of the first sentence 8 and the third lever arm 21 and the second rail 23 are moving towards the second set of flaps 9 extensively trained.

[0031] Starting from the second operating state of the cooling air control device according to the invention 1 , in which the individual flaps 26 the spaces 11 The positions of the first shaft are closed, which is achieved by a rotation of the first shaft. 12 around their shaft axis 14 a translational-rotational movement of the two lever arms 20 , 21 This results in a translational movement of the two rails 22 , 23 is brought about by the translational movement of the rails. 22 ,23 This results in a rotation of the first lever part system. 16 assigned flaps 26 around their axis of rotation 10 , since the flaps 26 with the help of a connecting end to the respective rail 22 ; 23 movable, connected at the other end and with the respective flap 26 , movable in the present embodiment, connected flap arm 24 They can be adjusted. The rotatable connections are exemplified by a sliding-bearing plug-in joint. 25 executed.

[0032] In the Fig. 6 and Fig. Figure 7 is a basic structure of the second lever subsystem 17 in a top view in a section in the area of ​​the support 6 illustrated, with in Fig. 6, which belong to the second lever system 17 assigned flaps 26 in the first operating state and in Fig. 7 in the second operating state of the cooling air control device1 is shown.

[0033] It should be mentioned at this point that the views of the lever subsystems 16 , 17 each from a horizontal center of the housing 2 to do so, which is why the first lever system 16 , which is located in the direction of a vehicle vertical axis H at the top of the housing 2 is arranged, viewed from below, and the second lever system 17 , which is located in the direction of the vehicle's vertical axis H at the bottom of the housing 2 is arranged as viewed from above.

[0034] A second lever kinematic 27 of the second lever system 17 is essentially identical according to the first lever kinematics 18 of the first lever system 16 trained. The difference between the two lever kinematics. 18 , 27 is in an oppositely oriented positioning of the first lever arm 19 to see.

[0035] The lever arm 19 This applies to both lever kinematics. 18 , 27 rotationally fixed to the shaft 12 trained. So that with a single wave 12 the first lever system 16 assigned flaps 26 and the second lever system 17 assigned flaps 26 with a fundamentally identical design of the lever kinematics 18 , 27 The lever arm can be brought into the positions to be assumed. 19 the first lever kinematics 18 and the lever arm 19 the second lever kinematics 27 in the direction of rotation of the shaft 12 offset by 90° to each other on the shaft 12 Mounted in a rotationally fixed manner.

[0036] Thus, in the first operating state, in which the spaces are 11 are fully open, the second lever arm 20 and the third lever arm 21 the first lever kinematics18 arranged as far apart as possible, whereas the second lever arm 20 and the third lever arm 21 the second lever kinematics 27 , s. Fig. 6, have the smallest possible distance between each other.

[0037] Using the cooling air control device according to the invention 1 Is it possible to install the cooling air control device? 1 air mass flow m L depending on the degree of opening ϕ of the flaps 26 to be designed as degressive or progressive. The degree of opening ϕ depends on the rotation of the flaps. 26 , where an opening degree ϕ with a value of zero corresponds to the second operating state, i.e., a complete closure of the gaps 11 This corresponds to the following: Starting from an opening degree of zero, the opening degree ϕ increases with increasing gap size. 11until the first operating state, a maximum opening of the spaces, is reached. 11 , has been reached. In the Fig. 8 and Fig. Figure 9 in an air mass flow-flap opening degree diagram shows an example of a degressive or progressive course of the air mass flow m. L shown with increasing degree of opening ϕ.

[0038] In the Fig. 10 to Fig. 13 are illustrated in principle diagrams of variants of flap positions, where an arrow 28 a direction of rotation of the flaps 26 characterizes. In the Fig. 10 and Fig. 11 are a first flap position or a second flap position to bring about a degressive air mass flow profile and in Fig. Figure 12 shows a third flap position for achieving a progressive air mass flow pattern. Fig. 13 is the cooling air control device according to the invention. 1presented in segmented construction, with a first sub-area 31 a progressive air mass flow profile and in a second sub-area 32 as well as a third sub-area 33 a degressive air mass flow mL can be achieved.

[0039] In Fig. 14a shows a schematic representation of the cooling air control device according to the invention. 1 in a third embodiment with counter-rotating flaps 26 , as they are in the third valve position according to Fig. 12 is trained, illustrated. In the Fig. 14b to e are the lever subsystems 16 , 17 and their associated lever kinematics 18 , 27 depicted, whereby the Fig. 14b and Fig. 14e the lever subsystems 16 , 17 in the first operating state and the Fig. 14c and Fig. 14d the lever subsystems 16 , 17 Depict in the second operating state.

[0040] In this third embodiment of the cooling air control device according to the invention 1 A progressive airflow pattern can be achieved. This is achieved through the flaps. 26 with the designations K1 , K3 , K5 , K7 of the second set flaps 9 the second lever system 17 and the flaps 26 with the designations K2 , K4 , K6 of the second set flaps 9 the first lever system 16 assigned accordingly. The flaps are as follows: 26 with the designations K8 , K10 , K12 of the first sentence flaps 8 the second lever system 17 and the flaps 26 with the designations K9 , K11 , K13 of the first sentence flaps 8 the first lever system 16 assigned.

[0041] In Fig. 15a shows a schematic representation of the cooling air control device according to the invention. 1 a fourth embodiment in segmental construction is illustrated, as exemplified in Fig. 13 is shown. In the Fig. 15b to Fig. 15e are the lever subsystems 16 , 17 and their associated lever kinematics 18 , 27 depicted, whereby the Fig. 15b and Fig. 15e the lever subsystems 16 , 17 in the first operating state and the Fig. 15c and Fig. 15d the lever subsystems 16 , 17 Depict in the second operating state.

[0042] In this fourth embodiment of the cooling air control device according to the invention 1 A progressive and degressive air mass flow profile is achievable. These are the flaps. 26 with the designations K1 , K3 , K5 , K6 , K7of the second set flaps 9 the second lever system 17 and the flaps 26 with the designations K2 , K4 of the second set flaps 9 the first lever system 16 assigned accordingly. The flaps are as follows: 26 with the designations K8 , K10 , K12 , K13 , K14 of the first sentence flaps 8 the second lever system 17 and the flaps 26 with the designations K9 , K11 of the first sentence flaps 8 the first lever system 16 assigned.

[0043] In Fig. 16a in a perspective view a section of the cooling air control device according to the invention 1 in a fifth embodiment with flaps rotating in the same direction 26 a set of flaps 8 ; 9 , as exemplified in the Fig. 10 or Fig. Figure 11 is shown, illustrated. These are the flaps. 26 each of a set of flaps 8 ; 9 rotating at the same rate, however the sets flaps 8 , 9 are designed to rotate in opposite directions. In this embodiment, only one lever system is used. 16 ; 17 required. This can be the first lever component system. 16 or the second lever system 17 be. In this fifth embodiment of the cooling air control device according to the invention. 1 A degressive air mass flow pattern can be achieved.

[0044] In the embodiments described above, the actuator 7 in the direction of the first axis of symmetry 5 center of the support 6 recorded. Likewise, he can also, as in Fig. 17 illustrates the cooling air control device according to the invention. 1as shown in a sixth embodiment, on the support 6 at its upper end 29 It could also be located at one of the upper ends. 29 turned away, formed lower end 30 of the carrier 6 It should be included. Also, there are various positions between the top end. 29 and the lower end 30 conceivable.

[0045] In a seventh embodiment of the cooling air control device according to the invention, 1 the lever systems 16 , 17 each actuator 7 , 13 be actuated, whereby the first lever subsystem 16 the actuator 7 and the second lever system 17 another actuator 13 are assigned, as exemplified in Fig. Figure 18 shows the advantage of the additional actuator. 13 This can be seen in the fact that the lever subsystems 16 ,17 They can be operated independently of each other, thus providing a further degree of freedom in the positioning of the flaps. 26 is brought about. In other words, that the degree of opening ϕ of one lever subsystem 16 ; 17 differing from the degree of opening ϕ of the other lever subsystem 17 ; 16 This can be distinguished. Likewise, due to the two independently acting actuators, 7 , 13 Rotational speeds of the corresponding lever systems 16 , 17 assigned flaps 26 be different.

[0046] Provided that the two drives are at the ends 29 , 30 of the carrier, a space can be arranged between the ends 29 , 30 trained carrier area 34 of the carrier 6 can be used advantageously for, e.g., driver assistance systems and / or sensors, since in this area 34No wave has formed. The actuators 7 , 13 They can be designed to be flat and therefore require less installation space.

[0047] Likewise, the cooling air control device according to the invention can 1 in modular construction for operating the first sub-area 31 the actuator 7 and to operate the second sub-area 32 as well as the third sub-area 33 the other actuator 13 exhibit, as exemplified in Fig. 19 is shown, where the first sub-area 31 the first lever system 16 and the second sub-area 32 as well as the third sub-area 33 the second lever system 17 is assigned.

[0048] Another embodiment of the cooling air control device according to the invention 1 , as it is in the Fig. 20a to Fig. As illustrated in c, the flaps can be operated individually.26 per flap 26 two controllable clutches 37 on, which are, for example, electromechanically actuated. The couplings 37 can be directly in the flaps 26 or on the flap arms 24 This further embodiment offers the advantage of providing an individual air mass flow that can be adjusted depending on an operating point of the vehicle. Depending on the operating point, the clutches are 37 open or closed, whereby one of the lever kinematics 18 ; 27 Coupling designed facing 37 It can only be closed if the opposite one, i.e., one of the lever kinematics, is closed. 27 ; 18 The coupling is open when facing the direction it is designed. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 397239 A

[0003] US 1932244 A

[0004] DE 19937153 C2

[0004] DE 102017000401 A1

[0005] WO 2014 / 064083 A1

[0005]

Claims

[1] Cooling air control device for a motor vehicle, comprising several flaps (26) arranged side by side, which are rotatably mounted in a housing (2), wherein the flaps (26) each have an axis of rotation (10) about which they are rotatably arranged, and wherein the flaps (26) are at least partially rotatable in the opposite direction, and wherein a lever system (15) is formed which is operatively connected to the flaps (26), wherein the lever system (15) is operatively connected to an actuator (7), and wherein the lever system (15) is designed to change its position by means of the actuator (7), wherein the flaps (26) are alignable according to the positioning of the lever system (15), and wherein the flaps (26) are divided into a first set of flaps (8) and a second set of flaps (9), which are arranged side by side in the housing (2), characterized by, that to bring about different arrangements of the flaps (26) relative to each other a first lever part system (16) of the lever system (15) and a second lever part system (17) of the lever system (15) are formed, wherein the first lever part system (16) and / or the second lever part system (17) is connected to a first set of flaps (8) and / or to a second set of flaps (9), and wherein the first lever part system (16) and the second lever part system (17) are arranged opposite each other. [2] Cooling air control device according to claim 1, characterized by, that a movable connection between flaps (26) of the first set of flaps (8) and the first lever subsystem (8) and / or between flaps (26) of the second set of flaps (9) and the first lever subsystem (8) at a first flap end (38) of the flaps (26) facing the first lever subsystem (8) and / or between flaps (26) of the first set of flaps (8) and the second lever subsystem (8) and / or between flaps (26) of the second set of flaps (9) and the second lever subsystem (8) at a second flap end (39) of the flaps (26) facing the second lever subsystem (8) wherein the second flap end (39) is facing away from the first flap end (38). [3] Cooling air control device according to claim 1 or 2, characterized by , that with the help of the lever system (15) a degressive and / or progressive air mass flow profile with respect to an opening degree (ϕ) of the cooling air control device (1) can be realized. [4] Cooling air control device according to one of the preceding claims, characterized by , that a first lever kinematics (18) of the first lever subsystem (16) and a second lever kinematics (27) of the second lever subsystem (17) are identically constructed. [5] Cooling air control device according to one of the preceding claims, characterized by , that in a first operating state of the cooling air control device (1) a first lever kinematics (18) of the first lever subsystem (16) has a kinematic position which corresponds to a kinematic position of a second lever kinematics (27) of the second lever subsystem (17) in a second operating state of the cooling air control device (1). [6] Cooling air control according to one of the preceding claims, characterized by , that the first lever subsystem (16) is movable together with the second lever subsystem (17). [7] Cooling air control device according to one of the preceding claims, characterized by, that the first lever part system (16) and the second lever part system (17) have a common shaft (12) for adjustment. [8] Cooling air control device according to claim 6, characterized by , that the wave (12) is designed to be movable with the help of the actuator (7). [9] Cooling air control device according to one of the preceding claims, characterized by , that the actuator is arranged centrally on a support (6) of the housing (2). [10] Cooling air control device according to one of the preceding claims, characterized by , that a first sub-area (31) of the flaps (26) are assigned to a drive unit of the motor vehicle and a second sub-area (32) and / or third sub-area (33) are assigned to auxiliary units and / or brakes of the motor vehicle. [11] Cooling air control device according to one of the preceding claims, characterized by, that a sensor (36) and / or an assistance system (35) is incorporated in a carrier (6) of the housing (2).

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