motor vehicle

Abstract

motor vehicle, a receiving chamber (20) arranged in the front area, which is bounded by a receiving chamber wall (22), wherein the receiving chamber wall (22) has an access opening (32), a front hood (40) which is movable between a closed position and an open position, wherein the front hood (40) in its closed position fluid-tightly seals the access opening (32), and wherein the receiving chamber (20) in the closed position of the front hood (40) is fluid-tightly encapsulated from the external environment, and a front hood adjustment device (60), wherein the receiving chamber adjustment device (60) is designed such that the front hood (40) can be adjusted in the event of a pedestrian impact, characterized by the fact that A receiving chamber pressure equalization device (70, 80, 90, 100, 110, 120) is provided on the receiving chamber wall (22) or on the front hood (40), wherein the receiving chamber pressure equalization device (70, 80, 90, 100, 110, 120) is designed to counteract the negative pressure that arises in the receiving chamber (20) during an opening movement of the front hood (40) and to equalize the pressure between the outside environment and the receiving chamber (20) during the opening movement of the front hood (40), wherein the receiving chamber pressure equalization device (70, 80) has an air channel (76) that can be closed by a closing element (78, 88) and is radially limited by a frame (74, 84). 86) having, wherein the locking element (78, 88) is adjustable between a closed position and an open position, wherein in the closed position of the locking element (78,88) the receiving chamber (20) is fluid-tight sealed and in the open position of the closing element (78, 88) the receiving chamber (20) is connected to an external environment via the air duct (76, 86).

Description

[0001] The invention relates to a motor vehicle, with a receiving space arranged in the front area, which is delimited by a receiving space wall, wherein the receiving space wall has an engagement opening, a front hood which is movable between a closed position and an open position, wherein the front hood closes the engagement opening in a fluid-tight manner in its closed position, and wherein the receiving space is encapsulated in a fluid-tight manner from the outside environment in the closed position of the front hood, and a front hood adjusting device, wherein the receiving space adjusting device is designed such that the front hood can be adjusted in the event of a pedestrian impact.

[0002] Vehicles with a storage compartment arranged in the front area are known from the prior art. In particular, vehicles with a mid-engine or a rear-engined vehicle have a trunk designed as a storage compartment, which is arranged in the front area. Electric vehicles with a storage compartment arranged in the front area are also known from the prior art. The storage compartment can, in principle, be any space arranged in the front area. For example, an engine compartment of a vehicle with an internal combustion engine or a compartment of an electric vehicle in which an electric machine, a battery, or other components of the electric vehicle are arranged can also be considered a storage compartment.The storage space is typically defined by a storage space wall, which has an access opening through which the user can reach into the storage space and place objects into the storage space designed as a trunk. A front hood is provided to close the access opening and is movable between a closed and open position. The front hood seals off the storage space in a fluid-tight manner, allowing objects that should not become damp or dirty to be stored in the storage space. Such a vehicle with a storage space arranged in the front area is disclosed in DE 10 2008 053 ​​767 A1.

[0003] To protect pedestrians in the event of a frontal collision between a motor vehicle and a pedestrian, vehicles are equipped with an adjusting device for hoods located in the front area, particularly engine hoods. The adjusting device comprises a pyrotechnic actuator and a special hood mount. Upon detection of a frontal collision with a pedestrian, the pyrotechnic actuator is triggered, and the hood moves upwards in the vertical direction of the vehicle on the side facing the windshield. This process must occur as quickly as possible to ensure adequate pedestrian protection. Raising the hood creates an additional crumple zone for pedestrians and prevents the pedestrian from impacting the hard supporting parts of the vehicle. Such an adjusting device is disclosed, for example, in DE 20 2013 101 518 U1 and CN 1 07 433 911 A.

[0004] The sudden opening movement of the front hood increases the volume of the fluid-tight encapsulated compartment, creating a lower pressure in the compartment relative to the outside environment, namely a negative pressure. This negative pressure, in turn, acts on the front hood, slowing down the opening movement of the front hood. Such a slow opening movement results in the front hood not opening quickly enough, which means that pedestrian protection cannot be guaranteed.

[0005] Documents DE 10 2010 035 805 A1, DE 10 2015 006 920 A1, and DE 198 23 877 A1 each disclose a pressure compensation device for a passenger compartment of a motor vehicle. The pressure compensation device is designed to prevent undesirable overpressure in the passenger compartment, particularly when an airbag is deployed. Further pressure compensation devices for a motor vehicle are disclosed, for example, in DE 36 01 853 A1 and DE 11 2008 002 753 B4.

[0006] It is known from DE 10 2017 214 953 A1 that a gas generator deliberately causes overpressure in a receiving chamber in the event of a pedestrian impact.

[0007] DE 10 2019 108 937 A1 is a subsequently published prior art and discloses a pressure compensation device by means of which the negative pressure when raising the front hood can be avoided.

[0008] The object of the invention is to provide a vehicle which ensures pedestrian protection by means of the adjustable front hood.

[0009] This object is achieved by a vehicle having the features of independent claim 1.

[0010] By providing a pressure equalization device on the receiving space wall or on the front hood, a vehicle is created in which pedestrian protection is ensured by the raised front hood. The pressure equalization device counteracts the negative pressure that arises in the receiving space when the front hood is raised and establishes pressure equalization between the outside environment and the receiving space during the raised movement. This allows the front hood to be raised in the shortest possible time and provides adequate protection for pedestrians.

[0011] The pressure equalization device has an air duct that can be closed by a closing element and radially delimited by a frame, wherein the closing element is adjustable between a closed position and an open position, wherein in the closed position of the closing element the receiving space is fluid-tight and in the open position of the closing element the receiving space is connected to the outside environment via the air duct. The negative pressure created in the receiving space by the adjustment of the front hood loads the closing element in such a way that the closing element moves from its closed position to its open position. In the open position of the closing element the air duct is opened, whereby a fluidic connection to the outside environment is established and pressure equalization takes place between the receiving space and the outside environment. This ensures pressure equalization and thus pedestrian protection in a simple and cost-effective manner.

[0012] In a preferred embodiment, the closing element is pivotally mounted. The closing element is preferably arranged on a side wall of the receiving space wall, whereby a pivotally mounted closing element above the air duct remains in its closed position due to gravity and sealingly rests against an area radially surrounding the air duct.

[0013] The closing element is preferably designed as a plug and is mounted for translational movement. The plug-like closing element has a conical outer surface and, in the closed position, rests against a conical sealing surface of the frame that corresponds to the conical outer surface. The closing element is arranged centrally in the air duct and closes the air duct when the receiving space pressure equalization element is in the closed position. In the open position, the plug-like closing element is axially displaced, creating an air duct with an annular cross-section between the conical outer surface of the closing element and the conical sealing surface of the frame.The plug-like closing element is preferably arranged on a bottom section of the receiving space wall, whereby the plug-like closing element is held in its closed position due to gravity and when the front hood is raised and the negative pressure in the receiving space caused thereby, the plug-like closing element is moved into its open position.

[0014] Preferably, the locking element is loaded into its closed position by a spring element, whereby the penetration of moisture and dirt into the receiving space in the closed position of the locking element is reliably prevented.

[0015] Alternatively, the receiving space pressure equalization device is an anisotropic membrane device, wherein the membrane device has a frame which radially delimits an air duct fluidically connecting the receiving space to the outside environment, wherein a membrane fluidically closing the air duct, a close-meshed grid facing away from the receiving space, and a coarse-meshed grid facing the receiving space are arranged on the frame, wherein the membrane is arranged between the close-meshed grid and the coarse-meshed grid, and wherein the membrane is designed such that it tears when subjected to a load in the direction of the coarse-meshed grid and remains undamaged when subjected to a load in the direction of the close-meshed grid. The usual opening and closing processes of the front hood do not lead to a tear in the membrane. In this way, the receiving space pressure equalization device can be designed cost-effectively.

[0016] Alternatively, the receiving space pressure equalization device comprises a gas generator that can be activated together with the front hood adjustment device. This allows a simple and cost-effective way to prevent a negative pressure in the receiving space, with the gas generator releasing a quantity of gas into the receiving space corresponding to the increase in volume of the receiving space.

[0017] Preferably, the gas generator has an airbag that can be inflated with the released gas. Inflation of the airbag counteracts the increase in volume caused by the raising of the front hood, with the volume of the airbag corresponding to the increase in volume caused by the raising of the front hood.

[0018] In a preferred embodiment, the gas generator is a pyrotechnic squib, which is designed such that the squib contains a liquefied gas and releases this liquefied gas upon ignition. As a result, the receiving chamber pressure compensation device has a relatively small installation space.

[0019] Alternatively, the receiving space pressure equalization device has an air duct extending through the front hood, wherein the air duct is fluidically connected to the receiving space via an end on the receiving space side and is fluidically connectable to the outside environment via an end on the outside environment side, wherein the air duct is closed in the closed position of the front hood and is fluidly connected to the outside environment during the adjusting movement of the front hood. Preferably, in the closed position of the front hood, the air duct rests fluid-tight against a body element with the end on the outside environment side via a seal that seals the air duct, and during the adjusting movement of the front hood, the end on the outside environment side is spaced from the body element. This makes it possible to ensure pressure equalization with a high degree of reliability because the air duct and thus the receiving space are connected to the outside environment together with the adjusting movement.

[0020] Preferably, the receiving space wall is designed in a trough-like manner, with the receiving space wall comprising a base element and four side wall elements, the side wall elements and the base element being formed integrally. This allows the receiving space wall to be designed to be fluid-tight in a simple and cost-effective manner.

[0021] In a preferred embodiment, a circumferential seal is provided around the access opening, against which the front cover rests in its closed position. This allows the receiving space to be reliably sealed from the outside environment in a fluid-tight manner, reliably preventing the ingress of moisture and dirt.

[0022] This creates a vehicle that reliably ensures pedestrian protection.

[0023] Some embodiments of the invention are explained in more detail with reference to the drawings. Fig. 1 shows a section of a motor vehicle front area, Fig. 2 shows schematically a receiving space in cross section with a first embodiment of a receiving space pressure compensation device according to the invention, Fig. 3 shows schematically a receiving space in cross section with a second embodiment of a receiving space pressure compensation device according to the invention, Fig. 4 shows schematically a receiving space in cross section with a third embodiment of a receiving space pressure compensation device according to the invention, Fig. 5 shows schematically a receiving space in cross section with a fourth embodiment of a receiving space pressure compensation device according to the invention, Fig. 6 shows schematically a receiving space in cross section with a fifth embodiment of a receiving space pressure compensation device according to the invention, and Fig. 7 shows schematically a receiving space in cross section with a sixth embodiment of a receiving space pressure compensation device according to the invention.

[0024] Fig. 1 shows a front area of ​​a motor vehicle 10, for example, an electric vehicle. A receiving space 20, for example, a trunk, is arranged in the front area, in which objects can be stored and transported. The receiving space 20 is bounded on all sides by a one-piece receiving space wall 22, which has two side parts 24, 26, a rear wall 28, and a floor 29. On the side opposite the floor 29, the receiving space wall 22 has an access opening 32 through which objects can be passed and stored in the receiving space 20.

[0025] The access opening 32 can be closed in a fluid-tight manner by a front hood 40, wherein the front hood 40 is pivotally mounted on a motor vehicle body 12 of the motor vehicle 10 via two hinges 42, 44. The front hood 40 is thus movable between an open position and a closed position, wherein in Fig. 1 the front hood 40 is shown in its open position.

[0026] To seal the access opening 32 in a fluid-tight manner, a seal 50 is provided on the vehicle body 12. This seal is designed circumferentially and completely surrounds the access opening 32. A sealing surface 52 is provided on the front hood 40, which interacts with the seal 50.

[0027] Due to the circumferential seal 50, the receiving space 20 is encapsulated fluid-tight against the outside environment in the closed position of the front hood 40, so that no moisture and no dirt penetrates into the receiving space 20 and the objects stored therein are protected from damage and contamination.

[0028] A front hood adjustment device 60 is arranged in the receiving space 20, which typically has a pyrotechnic actuator and an airbag. The front hood adjustment device 60 serves to protect pedestrians in the event of a frontal collision with a pedestrian. The pyrotechnic actuator is activated when, for example, a pedestrian impact is detected by a sensor. Gas flows from the pyrotechnic actuator into the airbag, which inflates and raises the front hood in the vertical direction of the vehicle in the hinge area and adjusts it by fixing the front hood 40 at the opposite end. The hinges 42, 44 are designed to allow adjustment movement. Due to this adjustment, the front hood 40 serves as an additional crumple zone for the pedestrian.

[0029] The Fig. 2, Fig. 3, Fig. 4 and Fig. 5 show a cross section of the receiving space 20, wherein the receiving space wall 22, the front hood 40 and the seal 50 arranged in the closed position of the front hood 40 between the receiving space wall 22 and the sealing surface 52 of the front hood 40 are shown.

[0030] When the front hood 40 is tilted by the front hood tilting device 60, the volume of the receiving space 20 increases in a very short time. This increase in volume causes a negative pressure in the receiving space 20, whereby the negative pressure prevailing in the receiving space acts on the front hood 40 in a manner counter to the tilting movement of the front hood 40, thereby slowing down the tilting of the front hood 40. This leads to reduced pedestrian protection in the event of a frontal collision with a pedestrian.

[0031] In order to prevent the slowing down of the adjusting movement, a receiving space pressure compensation device 70, 80, 90, 100, 110, 120 according to the invention is provided in the receiving space 20.

[0032] The Fig. 2 shows a first embodiment of the receiving space pressure equalization device 70. The receiving space pressure equalization device 70 is provided on the receiving space wall 22 and has a sleeve-like frame 74, which is arranged in an opening 72 in the receiving space wall 22. The sleeve-like frame 74 radially delimits an air channel 76 with an inner circumferential surface, via which the receiving space 20 can be fluidically connected to the outside environment. A closing element 78 is arranged in the air channel 76, which is pivotally mounted on the frame 74 and is movable between a closed position and an open position. In its closed position, the closing element 78 rests with its free end against a stop 79.

[0033] The Fig. 3 shows a second embodiment of the receiving space pressure equalization device 80. The receiving space pressure equalization device 80 has, as the first embodiment Fig. 2, a sleeve-like frame 84, which is arranged in an opening 82 of the receiving space wall 22 and radially delimits an air channel 86. Furthermore, the receiving space pressure compensation device 80 comprises a plug-like closing element 88, which is arranged to be translationally movable and is adjustable between a closed position and an open position. The plug-like closing element 88 is pretensioned into its closed position by a spring element 89 arranged between the receiving space wall 22 and the closing element, wherein the closing element 88 bears with a sealing surface against a counter-sealing surface provided on the frame 84 and closes the air channel 86.

[0034] The Fig. 2 and Fig. The embodiments of the receiving space pressure equalization device 70, 80 shown in Figure 3 serve to encapsulate the receiving space 20 during normal operation of the motor vehicle 10 and when the front hood 40 is closed. In the event of a head-on collision with a pedestrian and the resulting tilting of the front hood 40, a negative pressure is created in the receiving space 20, which acts on the closing element 78, 88 and moves the closing element 78, 88 into its open position. In this case, the flap-like closing element 78 of the first embodiment of the receiving space pressure equalization device 70 is pivoted into its open position, and the plug-like closing element 88 of the second embodiment of the receiving space pressure equalization device 80 is displaced translationally against the spring force of the spring element 89. The pivoting or translational movement opens the air duct 76, 86, and pressure equalization is established between the receiving space 20 and the outside environment.This ensures that there is no negative pressure in the receiving space 20 during the adjustment movement of the front hood 40.

[0035] The Fig. 4 shows a third embodiment of a receiving space pressure equalization device 90, which is designed as an anisotropic membrane device. The receiving space pressure equalization device 90 has a sleeve-like frame 94, which is arranged in an opening 92 of the receiving space wall 22. The frame 94 radially delimits an air duct 96, via which the receiving space 20 can be connected to the outside environment. A membrane 98 is arranged in the air duct 96, which seals the air duct 96 in a fluid-tight manner. Furthermore, a coarse-mesh grid 97 facing the receiving space 20 and a close-mesh grid 99 facing the outside environment are arranged in the air duct 96, with the membrane 98 being arranged between the two grids 97, 99. Both grids 97, 99 are attached to the frame 94.

[0036] When the front hood 40 is raised and the resulting negative pressure in the receiving chamber 20, the membrane 98 is loaded in the direction of the coarse-mesh grid 97, whereby the membrane 98 tears due to contact with the coarse-mesh grid 97 and the air duct 96 is opened. During normal operation of the motor vehicle 10 and in the event of small pressure waves in the receiving chamber when the front hood 40 is closed, the membrane 96 is pressed against the fine-mesh grid 99 and remains undamaged.

[0037] The Fig. 5 shows a fourth embodiment of a receiving space pressure equalization device 100. The receiving space pressure equalization device 100 has a gas generator 102, which is arranged in an opening 106 of the receiving space wall 22.

[0038] When the front hood 40 is adjusted and the resulting negative pressure in the receiving space 20, the gas generator 102 is activated together with the front hood adjusting device 60, whereby a predefined amount of gas flows from the gas generator 102 into the receiving space 20 and the negative pressure in the receiving space 20 is thereby prevented.

[0039] In Fig. 6 is a fifth embodiment of a receiving space pressure equalization device 110, which is similar to the fourth embodiment of Fig. 5, wherein the gas exiting from the gas generator 112 does not flow into the receiving space 20, but flows into an air bag 114, which inflates.

[0040] The inflated airbag 114 compensates for the increase in volume resulting from the adjustment movement of the front hood 40, wherein the volume of the airbag 114 corresponds to the change in volume when the front hood 40 is adjusted.

[0041] The Fig.7 shows a sixth embodiment of a receiving space pressure equalization device 120. The receiving space pressure equalization device 120 is arranged on the front hood 40 and comprises an air duct 122, wherein the air duct 122 is permanently fluidically connected to the receiving space 20 with an end 124 on the receiving space side and is fluidically connectable to the outside environment with the end 126 on the outside environment side.

[0042] In the closed position of the front hood 40, the outside environment-side end 126 is sealed fluid-tight by a seal 128, wherein the seal 128 is arranged between a body element 12 adjacent to the receiving space wall 22 and the front hood 40 in the region of the outside environment-side end 126. During the adjustment process of the front hood 40, the front hood 40 is adjusted relative to the motor vehicle body 12 such that the sealing effect of the seal 128 is canceled and air can flow into the receiving space 20 via the air duct 122. This results in pressure equalization between the outside environment and the receiving space 20 during the adjustment process.

[0043] Other structural embodiments than those described are also possible, which fall within the scope of the main claim. For example, the receiving space 20 or the front hood 40 can be designed differently.

Claims

[1] Motor vehicle, with a receiving space (20) arranged in the front area, which is delimited by a receiving space wall (22), wherein the receiving space wall (22) has an engagement opening (32), a front hood (40) which is movable between a closed position and an open position, wherein the front hood (40) closes the engagement opening (32) in a fluid-tight manner in its closed position, and wherein the receiving space (20) is encapsulated in a fluid-tight manner from the outside environment in the closed position of the front hood (40), and a front hood adjusting device (60), wherein the receiving space adjusting device (60) is designed such that the front hood (40) can be adjusted in the event of a pedestrian impact, characterized by , that a receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is provided on the receiving space wall (22) or on the front hood (40), wherein the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is designed such that the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) counteracts the negative pressure which arises in the receiving space (20) during an adjusting movement of the front hood (40) and establishes the pressure equalization between the outside environment and the receiving space (20) during the adjusting movement of the front hood (40), wherein the receiving space pressure equalization device (70, 80) has an air duct which can be closed by a closing element (78, 88) and is radially delimited by a frame (74, 84) (76, 86), wherein the closing element (78, 88) is adjustable between a closed position and an open position, wherein in the closed position of the closing element (78,88) the receiving space (20) is closed in a fluid-tight manner and in the open position of the closing element (78, 88) the receiving space (20) is connected to an external environment via the air duct (76, 86). [2] Motor vehicle according to claim 1, characterized by that the closing element (78) is pivotally mounted. [3] Motor vehicle according to claim 1, characterized by that the closing element (88) is designed in the form of a plug and is mounted so as to be movable in translation. [4] Motor vehicle according to claim 2 or 3, characterized by that the closing element (78, 88) is loaded into its closed position by a spring element (89). [5] Motor vehicle, with a receiving space (20) arranged in the front area, which is delimited by a receiving space wall (22), wherein the receiving space wall (22) has an engagement opening (32), a front hood (40) which is movable between a closed position and an open position, wherein the front hood (40) closes the engagement opening (32) in a fluid-tight manner in its closed position, and wherein the receiving space (20) is encapsulated in a fluid-tight manner from the outside environment in the closed position of the front hood (40), and a front hood adjusting device (60), wherein the receiving space adjusting device (60) is designed such that the front hood (40) can be adjusted in the event of a pedestrian impact, characterized by , that a receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is provided on the receiving space wall (22) or on the front hood (40), wherein the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is designed such that the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) counteracts the negative pressure which arises in the receiving space (20) during an adjusting movement of the front hood (40) and establishes the pressure equalization between the external environment and the receiving space (20) during the adjusting movement of the front hood (40), wherein the receiving space pressure equalization device (90) is an anisotropic membrane device, wherein the membrane device has a frame (94) which fluidically connects the receiving space (20) to the external environment Air channel (96) is radially limited, wherein on the frame (94) a membrane (98) fluidically closing the air channel (96), a receiving space (20) facing away,a close-meshed grid (99) and a coarse-meshed grid (97) facing the receiving space (20) are arranged, wherein the membrane (98) is arranged between the close-meshed grid (99) and the coarse-meshed grid (97), and wherein the membrane (98) is designed such that it tears when subjected to a load in the direction of the coarse-meshed grid (97) and remains undamaged when subjected to a load in the direction of the close-meshed grid (99). [6] Motor vehicle, with a receiving space (20) arranged in the front area, which is delimited by a receiving space wall (22), wherein the receiving space wall (22) has an engagement opening (32), a front hood (40) which is movable between a closed position and an open position, wherein the front hood (40) closes the engagement opening (32) in a fluid-tight manner in its closed position, and wherein the receiving space (20) is encapsulated in a fluid-tight manner from the outside environment in the closed position of the front hood (40), and a front hood adjusting device (60), wherein the receiving space adjusting device (60) is designed such that the front hood (40) can be adjusted in the event of a pedestrian impact, characterized by , that a receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is provided on the receiving space wall (22) or on the front hood (40), wherein the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is designed such that the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) counteracts the negative pressure which arises in the receiving space (20) during an adjusting movement of the front hood (40) and establishes the pressure equalization between the external environment and the receiving space (20) during the adjusting movement of the front hood (40), wherein the receiving space pressure equalization device (100, 110) has a gas generator (102, 112) which can be activated together with the front hood adjusting device (60) is. [7] Motor vehicle according to claim 6, characterized by that the gas generator (112) has an air bag (114) which is inflatable with the gas released by the gas generator (112). [8] Motor vehicle according to claim 6 or 7, characterized by that the gas generator (102, 112) is a pyrotechnic squib which is designed such that the squib comprises a liquefied gas and releases the liquefied gas upon ignition. [9] Motor vehicle, with a receiving space (20) arranged in the front area, which is delimited by a receiving space wall (22), wherein the receiving space wall (22) has an engagement opening (32), a front hood (40) which is movable between a closed position and an open position, wherein the front hood (40) closes the engagement opening (32) in a fluid-tight manner in its closed position, and wherein the receiving space (20) is encapsulated in a fluid-tight manner from the outside environment in the closed position of the front hood (40), and a front hood adjusting device (60), wherein the receiving space adjusting device (60) is designed such that the front hood (40) can be adjusted in the event of a pedestrian impact, characterized by , that a receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is provided on the receiving space wall (22) or on the front hood (40), wherein the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) is designed such that the receiving space pressure equalization device (70, 80, 90, 100, 110, 120) counteracts the negative pressure which arises in the receiving space (20) during an adjusting movement of the front hood (40) and establishes the pressure equalization between the outside environment and the receiving space (20) during the adjusting movement of the front hood (40), wherein the receiving space pressure equalization device (120) has an air duct (122) extending through the front hood (40), wherein the air duct (122) is connected via a receiving space-side end (124) is fluidically connected to the receiving space (20) and is fluidically connectable to the outside environment via an outside environment-side end (126),wherein the air duct (122) is fluid-tightly closed in the closed position of the front hood (40) and is fluidically connected to the outside environment during the adjusting movement of the front hood (40). [10] Motor vehicle according to claim 9, characterized by that the air duct (122) in the closed position of the front hood (40) rests fluid-tight with the outside environment side end (126) via a seal (128) on a body element (12) and in the adjusting movement of the front hood (40) the outside environment side end (126) is spaced from the body element (12). [11] Motor vehicle according to one of the preceding claims, characterized by that the receiving space wall (22) is designed in a trough-like manner, wherein the receiving space wall (22) has a base element and four side wall elements, wherein the side wall element and the base element are designed in one piece. [12] Motor vehicle according to one of the preceding claims, characterized bythat a circumferential seal (50) is provided around the engagement opening (32), against which the front hood rests in its closed position.

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