Air guide device for exhaust air routing

Abstract

Air guide device for the exhaust air flow of a central radiator (1) of a motor vehicle, wherein the air guide device is modularly designed with a radiator frame (5), wherein the central radiator (1) is held in the surrounding radiator frame (5), wherein the radiator frame (5) has a centrally formed exhaust air duct (2), characterized in that the radiator frame (5) has frame-side exhaust air openings (10, 11) which are arranged in the side walls (20) of the radiator frame (5), wherein the air guide device is modularly designed such that in a first module assembly it additionally has two exhaust air ducts (3, 4) formed by air guide elements (8, 9) arranged laterally of the radiator frame (5), which are connected via the frame-side exhaust air openings (10, 11), or that in a second module assembly an air guide element (8, 9) arranged laterally of the radiator frame (5) with a frame-side exhaust air opening (10, 11)11) is connected by an air-conducting connection and a second frame-side exhaust air opening (10, 11) is closed with a cover, or that in a third module assembly both frame-side exhaust air openings (10, 11) are closed by a cover (12, 14) each.

Description

[0001] The invention relates to an air guiding device for exhaust air guidance according to the preamble of claim 1.

[0002] From DE 10 2009 027 475 A1 an air guiding device for supplying air to a radiator of a motor vehicle has become known, wherein the device comprises two air guiding parts, of which at least a first air guiding part is a closing part and a second air guiding part is a funnel forming an air duct which supplies air to the radiator.

[0003] DE 10 2007 062 345 A1 discloses an arrangement of three radiators in the front of a motor vehicle, wherein the radiators are connected to each other by means of lateral connecting ducts, wherein control flaps are provided for controlling the connecting ducts.

[0004] DE 102 42 788 A1 discloses a motor vehicle having a front end with a radiator arranged centrally therein.

[0005] DE 20 2008 009 178 U1 discloses a cooler arrangement with a fan frame with lateral exhaust air ducts.

[0006] DE 10 2008 039 726 A1 discloses a cooler arrangement with a fan frame with lateral exhaust air ducts.

[0007] DE 10 2004 003 197 A1 discloses a fastening device for a heat exchanger.

[0008] EP 1923 300 B1 discloses a method for installing cooling components.

[0009] The object of the invention is to provide an air guiding device for exhaust air guidance from a central radiator of a motor vehicle, which has a modular design and can be used for different vehicle types in order to keep the aerodynamic loss to a minimum or to adapt the requirements to suit the needs.

[0010] This object is achieved according to the invention by the features of claim 1. Further advantageous features are contained in the subclaims.

[0011] The invention advantageously achieves exhaust air ducts behind a vehicle radiator that can be used variably in the vehicle, with which the radiator exhaust air can be diverted to the outside in a targeted manner depending on the cooling capacity or the required air throughput.

[0012] This is achieved according to the invention in that, in addition to a central exhaust air duct formed by the radiator frame, the device is connected in an air-conducting manner to two exhaust air ducts formed by a funnel-shaped air guide element via frame-side exhaust air openings. The air guide elements are each optionally arranged laterally of the radiator frame in such a way that the frame-side exhaust air openings can be closed via a cover if the air guide elements are omitted. The additional exhaust air ducts designed as air guide parts on the side walls of the radiator frame enable a high air throughput. When this is not required, the air guide elements can be easily removed and the exhaust air openings in the radiator frame then closed with covers. This enables a modular application for various vehicles.

[0013] Furthermore, according to the invention, the radiator frame has clip receptacles for the upper and lower pins or tube parts of the radiator to accommodate the radiator, resulting in a position of the radiator that forms a central exhaust duct with a triangular cross-section and an air outlet opening on the bottom between the radiator and a wall of the radiator frame. By clipping onto the radiator frame, the radiator is securely held in the radiator frame to form the central exhaust duct.

[0014] Furthermore, according to the invention, it is provided that the cooler-side exhaust air openings are each arranged in the side walls of the cooler frame and the air guide elements or, if they are omitted, the covers can be clipped to the cooler frame.

[0015] According to one design variant, the air guide elements are funnel-shaped and each feature a downward-facing air outlet opening aligned with air vents located in the front of the vehicle. This allows the radiator exhaust air to flow unobstructed behind the radiator. Likewise, the central air outlet opening formed by the radiator frame is aligned with air vents in the front.

[0016] According to a further embodiment, the air guiding elements consist of elongated, channel-like air ducts with lateral air outlets forming the exhaust air guides. These air ducts are aligned approximately horizontally and extend transversely within the vehicle. Each of these ducts is directed toward an outlet opening in a side area of ​​the front section, with a free end located therein. Furthermore, the invention provides that the outlet opening on each side of the front section and the corresponding air outlet openings of the air ducts are arranged in an area of ​​high flow velocity and are exposed to a corresponding negative pressure.

[0017] This design further increases air flow without negatively impacting the vehicle's aerodynamics. Instead of the covers or funnel-shaped exhaust ducts, air ducts are installed in the same location, directing a portion of the exhaust air to the side. The air outlet is then located at the front end, preferably in an area of ​​high flow velocity and therefore negative pressure. The resulting pressure difference between the radiator and the outlet area partially compensates for the flow loss of the relatively long air duct; but also leads to an increased (out) flow, whereby the overall air flow through the radiator and thus the cooling performance is further increased without negatively impacting lift. A downward outflow from the central area of ​​the radiator remains, as with the other design variants, only the additional air volume takes a different path in each case.

[0018] In order to seal the radiator and the radiator frame with respect to the front section, the invention further provides that seals are arranged on the underside of the radiator frame in the area of ​​the frame side walls, which then run to a seal arranged on a transverse sealing strip on the underside of the radiator and the seals rest on the front section.

[0019] An embodiment of the invention is illustrated in the drawings and is described in more detail below.

[0020] They show: Fig. 1 a view of the two variants I and II of the exhaust air ducts of the central cooler with cooling frame as well as air guide elements and cover, Fig. 2 a view of variant I with the radiator held in the radiator frame and the side exhaust air ducts designed as air guide elements, Fig. 2a a view of the radiator in the radiator frame according to variant I seen from the front, Fig. 3 a view of variant II of the central radiator held in the radiator frame without lateral exhaust air ducts of the air guiding elements with a cover closing the exhaust air openings, Fig. 4 a view of variant I of the central cooler partially seen from below into the central exhaust air duct, Fig. 5 a view of the central radiator clipped into the radiator frame with air openings in a front section for the exhaust air ducts according to variant I, Fig. 6 a view from below of the sealing course of the central radiator with radiator frame seen from the front section, Fig. 7 a diagrammatic representation of a further embodiment variant III of the air guiding device with an elongated air duct and a lateral outlet opening in the front part, Fig. 8 a front view of the bow section with the built-in elongated air duct and lateral outlet opening in the bow section and Fig. 9 a view from behind of the bow section with the built-in elongated air duct.

[0021] An air duct for exhaust air guidance from a central cooler 1 of a motor vehicle to the outside takes place via so-called exhaust air ducts 2, 3, 4, which are directly connected to the central cooler 1 at a rear side in an air-conducting manner.

[0022] The central cooler 1 is held in a cooler frame 5, which forms a central exhaust air duct 2 between a rear side 6 of the cooler 1 and an inner wall 7 of the cooler frame 5. In addition to this exhaust air duct 2, in a variant I, at least two further exhaust air ducts 3 and 4 can be arranged on the cooler frame 5, which are formed by funnel-shaped air guide elements 8, 9. These are additionally connected to the central exhaust air duct 2 via frame-side exhaust air openings 10, 11.

[0023] The funnel-shaped air guide elements 8, 9 are each arranged optionally to the side of the radiator frame 5 according to requirements in such a way that the frame-side exhaust air openings 10, 11 can each be closed via a cover 12, 14 if the air guide elements 8, 9 are omitted, according to variant II.

[0024] In Fig. 1 is the variant I of the central cooler with the attached funnel-shaped air guide elements 3 and 4 and the variant II without the air guide elements 3, 4 is also in Fig. 1, wherein the frame-side exhaust air openings 10, 11 are closed by a cover 12, 14 when the air guide elements 3, 4 are omitted.

[0025] The cooler frame 5 has clip receptacles 15, 18 for upper and lower pins or tubes 17, 16 for receiving the cooler 1 in such a way that a position is created between the cooler 1 and a wall 7 of the cooler frame 5 with the central exhaust air duct 2 which is triangular in cross section and an air outlet opening 19 on the underside ( Fig. 4).

[0026] The frame-side exhaust air openings 10, 11 are each arranged in the side walls 20 of the radiator frame 5, which are either equipped with the air guide elements 3, 4 according to variant I or variant II or are clipped to the covers 12, 14. To direct the exhaust air away from the rear of the radiator 1, the air guide elements 8, 9 preferably have downwardly directed air outlet openings 21, 22, which are directed towards the air openings 24 arranged in the front part 23 of the vehicle ( Fig. 5 and Fig. 6).

[0027] The central air outlet opening 19 formed by the radiator frame 5 is also aligned with air openings 25 in the front part 23 for discharging the radiator exhaust air.

[0028] According to a third variant III, according to the Fig. 7, Fig. 8 and Fig.9, instead of the funnel-shaped air guide elements 8, 9, an elongated, channel-like air guide element 28 can optionally be used, the free end of which, with an air outlet opening 33, is directed toward an outlet opening 31 in the front section 23. This air guide element 28 is arranged on each side of the radiator frame 5. Only one side with an air guide element 28 is shown in the drawing.

[0029] The air guide elements 28 consist of elongated air ducts forming the exhaust air ducts 30 with lateral air outlet openings 33 (as seen in relation to the vehicle). The air ducts are aligned approximately horizontally and transversely within the vehicle. The outlet openings 31 in the front section 23 and the end air outlet openings 33 of the air ducts are each arranged correspondingly in the side region 32 of the front section 23 and are located in an area of ​​high flow velocity, in which a correspondingly high negative pressure also prevails. If the air guide elements 28 are omitted, the frame-side exhaust air openings 10, 11 are closed by the covers 12, 14.

[0030] On the underside of the radiator frame 5, in the area of ​​the frame side walls 20, seals 26 are arranged, which then run to a seal 34 arranged on a transverse sealing strip 27 on the underside of the radiator 1, which seal rests against the front part 2.

Claims

[1] Air guiding device for the exhaust air guidance of a central radiator (1) of a motor vehicle, wherein the air guiding device is of modular design with a radiator frame (5), wherein the central radiator (1) is held in the radiator frame (5) surrounding it, wherein the radiator frame (5) has a centrally formed exhaust air guide (2), characterized byin that the cooler frame (5) has frame-side exhaust air openings (10, 11) which are arranged in the side walls (20) of the cooler frame (5), wherein the air guiding device is designed in a modular manner such that, in a first module assembly, it additionally has two exhaust air guides (3, 4) formed by air guiding elements (8, 9) arranged to the side of the cooler frame (5), which are connected in an air-conducting manner via the frame-side exhaust air openings (10, 11), or in that, in a second module assembly, an air guiding element (8, 9) arranged to the side of the cooler frame (5) is connected in an air-conducting manner to a frame-side exhaust air opening (10, 11), and a second frame-side exhaust air opening (10, 11) is closed with a cover, or in that, in a third module assembly, both frame-side exhaust air openings (10, 11) are each closed by a cover (12, 14). [2] Air guiding device according to claim 1, characterized bythat the cooler frame (5) for receiving the cooler (1) has clip receptacles (15) for upper and lower pins (16, 17) or pipe parts of the cooler (1) in such a way that a position of the cooler (1) results which forms the central exhaust air duct (2) with a triangular cross-section and an air outlet opening (19) on the underside between the cooler (1) and a wall (7) of the cooler frame (5). [3] Air guiding device according to claims 1 or 2, characterized by that the frame-side exhaust air openings (10, 11) are each arranged in the side walls (20) of the radiator frame (5) and the air guiding elements (8, 9) or, if they are omitted, the covers (12, 14) can be clipped to the radiator frame (5). [4] Air guiding device according to claims 1, 2 or 3, characterized bythat the air guiding elements (8, 9) are funnel-shaped and each have a downwardly directed air outlet opening (21, 22) which are directed towards air openings (24) arranged in the front part (23) of the vehicle. [5] Air guiding device according to one of the preceding claims, characterized by that the air guiding elements (28) are arranged on each side of the radiator frame (5) and consist of elongated, channel-like exhaust air guides (30) which form air channels which are aligned approximately horizontally and transversely in the vehicle and have lateral - viewed in relation to the vehicle - air outlet openings (33) which are each arranged corresponding to an outlet opening (31) in the side region (32) of the front part (23). [6] Air guiding device according to claim 5, characterized bythat the mouth openings (31) in the bow part (23) and the corresponding air outlet openings (33) are arranged in a region of high flow velocity and a corresponding negative pressure. [7] Air guiding device according to claim 2, characterized by that the underside air outlet opening (19) formed by the radiator frame (5) is aligned with air openings (25) in the front part (23). [8] Air guiding device according to one of the preceding claims, characterized by that seals (26) are arranged on the underside of the radiator frame (5) in the region of the frame side walls (20), which seals then run to a seal (34) arranged on a transverse sealing strip (27) on the underside of the radiator, and the seals (26 and 34) rest on the front part (23).

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