Ventilation device and brake system

Abstract

The invention relates to a ventilation device (100), in particular for use with at least one valve device or a plurality of valve units, comprising at least one air chamber element (110), an outflow section (120), and at least one ventilation channel (130) for forming a fluidic connection between the exterior of the ventilation device (100) and the at least one air chamber element (110). The first ventilation channel (130) has at least one first and / or one second opening (132; 136), wherein the first ventilation channel comprises at least one primary labyrinth element (134) and / or at least one secondary labyrinth element (138) such that at least one deflection point is formed along the fluidic connection between the exterior of the ventilation device (100) and the at least one air chamber element (110). The present invention also relates to a brake system, in particular for lorries.

Description

[0001] DESCRIPTION

[0002] Bleeding device and braking system

[0003] The present invention relates to a venting device, in particular for use with at least one valve unit or a plurality of valve units, and to a brake system with such a venting device.

[0004] Trucks are typically equipped with a pneumatic braking system. The units of such a braking system often use pneumatic valves that vent a volume flow to the outside or to an external area, and thus to the surrounding atmosphere, or have various active surfaces that must be connected to ambient pressure.

[0005] Valves usually vent a volume flow to the outside in one of their switching positions. Valves may have internal operating surfaces that should be exposed to an ambient pressure level as consistently as possible. Such spaces, for example, beneath a piston with a spring located within, must therefore always have an open connection to the outside and are referred to as "breathing spaces."

[0006] The arrangement and orientation of the valves is usually vertical, so that a hole pointing downwards, i.e. in the direction of gravity, is provided for ventilation purposes per valve.

[0007] However, these vent holes offer little or no protection against water ingress, e.g. when cleaning with a high-pressure cleaner. Furthermore, in the case of complex device units in a truck brake system, it is not always possible for all valves to be arranged in this way, i.e. in a vertical direction, in order to align their vent holes accordingly. In this case, the moisture or liquid that has penetrated cannot flow away, or cannot flow away completely, due to the force of gravity. In particular, if the temperature drops below freezing, the water remaining in the valves can freeze and block them. The object of the present invention is to advantageously develop a venting device of the type mentioned at the outset, in particular to the effect that the penetration of moisture or liquids into the venting device is at least substantially prevented or prevented.can be counteracted and the drainage of penetrated moisture or liquid can be optimized, preferably by a fluid connection by means of deflection points preventing or reducing the direct, immediate penetration of a water jet or the like, so that a venting function for a plurality of device units, such as valves, can be ensured. Furthermore, it is the object of the present invention to provide a brake system with such a venting device. This object is achieved according to the invention by a venting device having the features of claim 1 and a brake system having the features of claim 10. Further advantageous embodiments are specified in the dependent claims.

[0008] According to this, it is provided that a venting device, in particular for use with at least one valve unit or a plurality of valve units, is designed with at least one air chamber element, at least one outflow section, and at least one first venting channel for forming a fluid connection between an outer side of the venting device and the at least one air chamber element, wherein the outflow section provides the fluid connection between the air chamber element and the at least one first venting channel and is designed at least partially in the form of a rising channel. The first venting channel has at least one first and / or one second opening.The first venting channel is formed with at least one primary labyrinth element and / or at least one secondary labyrinth element, wherein the at least one primary and / or secondary labyrinth element is provided such that at least one deflection point is formed along the fluid connection between an outer side of the venting device and the at least one air chamber element, in particular via the first and / or second opening.

[0009] The invention is based on the fundamental idea that a vent can be provided with a splash guard, in particular a common splash guard for several (horizontally stacked) valves. In this case, the venting device is intended to utilize, in particular, the principle of a (common) venting chamber / a (common) air chamber element with a (vertically) downwardly arranged outflow section, which opens into a venting channel with openings and labyrinth elements formed / arranged in the area of ​​the openings.

[0010] Furthermore, based on the design and arrangement of the labyrinth elements, at least one deflection point can be provided in each case, so that the penetration of moisture or liquid in the direction of a first longitudinal axis of the first venting channel can be prevented and / or reduced. Rather, the arrangement and design of the labyrinth elements is such that, for example, a water jet is deflected to enter the first venting channel. Diverting, breaking up, or deflecting the water jet means that the deep penetration of moisture / liquid into the at least one air chamber element can be at least substantially prevented and / or reduced.

[0011] Furthermore, the formation of the outflow section, in particular at a lower end of the air chamber element and of the venting channel with a first and / or second opening, makes it possible to facilitate the outflow of moisture / liquid and to at least substantially prevent or counteract the rising of liquid along the first venting channel and / or along the outflow section into the air chamber element.

[0012] The arrangement of the outflow section at a preferably (vertically) lower position of the air chamber element (relative to the installed state, with the vehicle on a horizontal plane) is to be understood in the context of the present invention, particularly with regard to the appropriate use and orientation of the venting device or a corresponding braking system. Moisture or fluid can escape or flow out of the air chamber element via the outflow section due to gravity.

[0013] By designing the outflow section at least partially or in sections in the form of a riser channel or riser area, the penetration of moisture that has already penetrated into the air chamber element is further prevented or counteracted. In particular, a preferred combination of labyrinth element(s) and outflow section with the function of a riser channel / section can counteract or prevent the penetration of moisture.

[0014] The venting(s), for example, of a plurality of valves can be effected via a common air chamber element of the venting device, which is formed by the venting device. This air chamber element, as a common space, is connected at a position vertically below the valves to at least one preferably downward and / or sideways-facing outflow section to enable venting to the outside / to an outside of the venting device.

[0015] Venting can, in particular, involve so-called secondary venting, i.e., the venting of valves that only need to vent a small volume flow, such as solenoid valves. Furthermore, venting can also be understood as connecting "breathing chambers," such as spring chambers or the like, to the (atmospheric) ambient pressure.

[0016] For the purposes of the present invention, a fluid connection is particularly intended to be a connection for venting. Thus, a fluid connection between the air chamber element and the first / second opening of the first vent channel, and along the respective labyrinth elements, can ensure that venting, for example, of a plurality of valves connected to the air chamber element can be carried out effectively.

[0017] The openings of the at least one first venting channel allow moisture / liquid that has penetrated to flow away and / or at least substantially prevent moisture / liquid from penetrating the air chamber element, in particular by (at least largely) avoiding a back pressure within the at least one first venting channel and / or the outflow section.

[0018] The openings may preferably be formed at opposite ends of the first vent channel. Alternatively, the first / second openings may be formed along the first vent channel.

[0019] By means of the present invention, in particular by means of the labyrinth elements and the openings of the venting channels, both a splash guard and a drainage of penetrated liquid can be provided, in particular due to the avoidance or reduction of a back pressure, the fluid connection from the air chamber element to the atmospheric outside of the venting device can also be expediently ensured.

[0020] In the context of the present invention, an outflow section can be, in particular, an outflow opening, an outflow channel, and / or the like, so that a fluid connection can be provided between the air chamber element and the first vent channel. According to the invention, the outflow section is preferably arranged or formed at a lower end of the air chamber element.

[0021] For the purposes of the present invention, a labyrinth element can be understood as a section of a fluid connection that provides at least one deflection point, preferably a plurality of deflection points. Accordingly, the fluid connection along a labyrinth element can, for example, have several bends, preferably bends in a range of 1 to 90°.

[0022] The fluid connection does not run solely / exclusively in the direction of the (first) longitudinal axis of the (first) venting channel or the outflow section, in particular an outflow channel. Thus, splash protection can be provided by the labyrinth elements.

[0023] Preferably, at least one deflection point is provided by means of the labyrinth elements in such a way that penetration of dirt, liquids such as water and the like can be prevented or reduced.

[0024] In particular, for example, a high-pressure water jet cannot penetrate directly into the venting channel, but is at least substantially deflected or divided based on the structural arrangement and design of the venting channels with the labyrinth elements within the venting device.

[0025] Furthermore, the first venting channel can have a continuous or variable cross-section along its first longitudinal axis. The openings of the first venting channel preferably have identical cross-sections.

[0026] To provide splash protection for the fluid connection, the labyrinth elements are each designed with at least one deflection point. In this way, a linear inflow / penetration of liquid into the venting channel solely in the direction of the associated longitudinal axis can be avoided. Furthermore, it can be provided that the first venting channel opens into the outflow section along its first and / or second opening and the first and / or second labyrinth element, in particular along the first opening and the first and second labyrinth elements and / or along the second opening and the first labyrinth element and / or second labyrinth element.

[0027] Furthermore, it is conceivable that at least one second venting channel is provided with a first and / or second opening, wherein the first and second venting channels are preferably arranged on opposite end sides of the outflow section, in particular of an outflow channel of the outflow section, and wherein the second venting channel is formed with at least one primary and / or at least one secondary labyrinth element.

[0028] As with the first vent channel, the first opening and / or the second opening can preferably be formed at opposite ends of the second vent channel. Alternatively, the first and / or second opening can be formed along the second vent channel.

[0029] In particular, the splash guard can be further optimized and supplemented by arranging or forming a plurality of venting channels in such a way that the fluid connection between the outside of the venting device and the air chamber element has a plurality of deflection points, which are formed in particular by the various labyrinth elements in combination with the respectively associated openings of the venting channels.

[0030] The first and second venting channels can be formed symmetrically or asymmetrically to each other along the venting device.

[0031] Furthermore, it can be provided that no labyrinth element is formed in the region of the second opening(s). This allows for a more variable design of the venting channels or the fluid connection, whereby the absence of a labyrinth element in the region of the second opening does not pose any, or at least not a significant, disadvantage with regard to preventing the penetration of moisture / liquid.

[0032] Alternatively, a second labyrinth element can be formed in the region of the second opening of the first and / or second venting channel. The first and second venting channels, configured in series with the outflow section, can prevent or reduce the ingress of moisture or liquid.

[0033] Furthermore, it can be provided that the primary and / or secondary labyrinth element each forms at least one deflection point along the fluid connection between the outside of the venting device and the at least one air chamber element.

[0034] In this way, the penetration of moisture / liquid along the longitudinal axis of the respective ventilation duct can be prevented or counteracted. In particular, the design of several deflection points can optimize the splash protection function.

[0035] Furthermore, it is possible for the venting device to be designed in one part or in several parts, in particular with a first side part and a cover element or with mutually corresponding first and second side parts and a sealing element arranged between the several parts.

[0036] Accordingly, the venting device can have a first side part, in the form of a structured main body with, among other things, the air chamber element, as well as an unstructured cover element for closing the structures of the first side part.

[0037] Alternatively, the venting device can be configured with a first side part and a corresponding second side part, wherein the first and second side parts are each configured as structured side parts. The two side parts can have symmetrical or asymmetrical structures.

[0038] In this way, among other things, the air chamber element, the outflow section and / or the first / second venting channel can be formed symmetrically divided in the two side parts, or divided asymmetrically, e.g. by the air chamber element being formed at least primarily in the first side part and / or the first venting channel being formed at least primarily in the second side part.

[0039] With the optional sealing element between the two components of the venting device, i.e. between the first side part and the cover element or between the first and second side parts, if water penetrates into the common space sealed at the top, the air volume there must be compressed in order to reach the valves or the structures to be vented.

[0040] In addition to a splash protection function, in particular by means of the labyrinth elements, and a venting or drainage function, in particular by means of the openings of the venting channels, a fluid-staticZ-dynamic resistance is thus provided against the penetration of liquid into the venting device.

[0041] Furthermore, it can be provided that the at least one outflow section is formed at a vertically lower end of the air chamber element. Furthermore, it is conceivable that the at least one outflow section is formed as at least one outflow opening or as at least one outflow opening in combination with at least one outflow channel, to provide a fluid connection between the air chamber element and the at least one first vent channel.

[0042] Preferably, the outflow section is arranged opposite or along the air chamber element in such a way that moisture or liquid can escape or flow away in the direction of the acting gravity.

[0043] Furthermore, the outflow section can be designed as an outflow opening in conjunction with an outflow channel, preferably in the form of a riser channel. Penetrating moisture or liquid, such as water, must therefore rise along the outflow section against gravity to reach the valves or the structures to be vented.

[0044] Furthermore, it is conceivable that the venting device is designed to accommodate and vent a plurality of valves in fluid communication with the air chamber element, wherein preferably a venting region is formed for each of the plurality of valves along the air chamber element.

[0045] In this way, a central venting system can be provided for multiple structures to be vented, such as valves. The venting infrastructure according to the invention can be easily adapted to the number of valves or structures to be vented by enlarging or reducing the size, in particular of the air chamber element.

[0046] In this sense, the air chamber element represents a common space provided by the venting device, for example by the first and second side parts in combination with a sealing element arranged therebetween.Furthermore, it is conceivable that the outflow section is provided with at least one outflow channel and at least one outflow opening, for forming a fluid connection between the outflow channel and the air chamber element, wherein the air chamber element is formed with at least one venting region, and wherein a (first) height distance between an access region of the outflow opening, in particular on a side of the outflow opening facing away from the air chamber element, and an access region of the outflow channel, in particular of the furthest access point on a side of the outflow channel facing away from the air chamber element, is smaller than a (second) height distance between an access region of the outflow opening, in particular on a side of the outflow opening facing away from the air chamber element, and the nearest venting region.By making the height difference along the outflow section, preferably the height direction of the outflow section formed at least partially as a riser channel, smaller than the height difference to the nearest venting area along the air chamber element, the penetration of moisture or water can be advantageously counteracted or prevented. In particular, the (second) height difference between the access area of ​​the outflow opening and the nearest venting area can be several times greater than the (first) height difference between the access area of ​​the outflow opening and the access area of ​​the outflow channel.

[0047] According to a further subordinate aspect, the present invention relates to a braking system, in particular for trucks, with at least one venting device according to the invention.

[0048] All structural and functional features associated with the above-described venting device according to the invention and its possible embodiments can also be provided alone or in combination in the brake system according to the invention and the associated advantages can be achieved.

[0049] Further details and advantages of the invention will now be explained in more detail with reference to the exemplary embodiments illustrated in the drawings. They show:

[0050] Fig. 1 is a perspective view of a first embodiment of a venting device;

[0051] Fig. 2 is a perspective view of a second embodiment of a venting device; and

[0052] Fig. 3 is a perspective view of a third embodiment of a venting device according to Figs. 1 and 2.

[0053] Fig. 1 shows a perspective view of a first embodiment of a venting device 100.

[0054] According to the first embodiment, the ventilation device 100 is formed with a first side part 150.

[0055] The side part 150 can have a sealing element 170 (see left illustration in Fig. 1 ) or can be designed without a sealing element 170 (see right illustration in Fig. 1 ).

[0056] The venting device 100 further comprises an air chamber element 110, an outflow section 120 and at least one first venting channel 130.

[0057] The air chamber element 110 can be configured to provide venting for multiple valves, multiple device units, or the like. In particular, the first side part 150 can have a plurality of receptacles for valves, device units, or the like in the region of the air chamber element 110. Preferably, a plurality of venting regions 112 can be configured along the air chamber element 110 for venting a plurality of valves or the like.

[0058] According to Fig. 1, the outflow section 120 can be formed with an outflow opening 122, which can merge into an outflow channel 124.

[0059] The outflow section 120, in particular the outflow opening 122, can be formed on a lower side of the air chamber element 110 according to Fig. 1 (in the vertical direction).

[0060] In particular, in the context of a suitable use, the outflow section 120 can be formed on a vertically lower side of the air chamber element 110 to enable moisture / liquid to drain from the air chamber element 110 in the direction of the acting gravity or to counteract the penetration of moisture / liquid. The outflow section, in particular the outflow channel 124 and / or the outflow opening 122, can be formed at least partially or in sections in the sense of a riser channel or perform such a riser channel function.

[0061] The outflow channel 124 can extend in a substantially horizontal direction according to Fig. 1 and provide a fluid connection via the outflow opening 122 to the air chamber element 110.

[0062] According to Fig. 1, the outflow channel 124 can have a tapered or changing cross-section, in particular so that drainage of moisture / liquid can be facilitated and / or penetration of moisture / liquid can be at least substantially prevented or counteracted.

[0063] The outflow channel 124 can merge into a first vent channel 130.

[0064] The venting channel 130 is formed according to Fig. 1 with a first opening 132 and a second opening 136.

[0065] Alternatively, the first vent channel 130 may be formed with a first opening 132 or a second opening 136.

[0066] According to Fig. 1, the first and second openings 132; 136 are provided at opposite ends of the first vent channel 130. Alternatively, the first / second openings 132; 136 can be provided along the first vent channel.

[0067] The first / second openings 132; 136 are formed in combination with a first and second labyrinth element 134; 138, respectively.

[0068] The labyrinth elements 134; 138 can in particular represent a portion of the fluid connection between the outside of the venting device 100 and the at least one air chamber element 110.

[0069] The labyrinth elements 134; 138 can each be formed along the first venting channel in the region of the first and second openings 132; 136, respectively.

[0070] In particular, according to Fig. 1, it can be provided that the labyrinth elements 132; 136 are each formed as a bend or as an angle or as a deflection of 90° along the fluid connection, in order to provide at least one deflection point.

[0071] According to Fig. 1, at least one deflection point, in particular two deflection points, is formed along the fluid connection from an outer side of the venting device 100 via the openings 132; 136 into the venting channel 130 up to the outflow section 120.

[0072] Alternatively, it can be provided that the first and / or second labyrinth element 132; 136 each form a plurality of deflection points along the fluid connection, for example a plurality of deflections or bends of 90° or in the range of 1 to 90°.

[0073] Fig. 2 shows a perspective view of a second embodiment of a venting device 100.

[0074] Just as in the first embodiment, the second embodiment of the venting device 100 can also be provided as a first side part 150 with the sealing element 170 (see left illustration according to Fig. 2) or without an additional sealing element 170 (see right illustration according to Fig. 2).

[0075] The embodiment of the venting device 100 according to the invention shown in Fig. 2 has essentially the same structural and functional features as the first embodiment of the venting device 100 shown in Fig. 1. The following primarily highlights the structural and functional feature differences:

[0076] In particular, the second embodiment according to Fig. 2 has, compared to the first embodiment according to Fig. 1, a first venting channel 130 and a second venting channel 140.

[0077] According to Fig. 2, the outflow section 120 is formed with an outflow opening 122. The outflow opening 122 is arranged on a lower side of the air chamber element 110 in the vertical direction and in the direction of gravity.

[0078] The first outflow channel 124 is arranged or connected to the outflow opening 120.

[0079] According to Fig. 2, the outflow channel 124 can run in a horizontal direction.

[0080] Furthermore, the outflow channel 124 can have a cross-section that is variable along the first longitudinal axis X and can preferably be designed symmetrically with respect to the outflow opening 122.

[0081] The outflow channel 124 forms a fluid connection with the first vent channel 130 and with the second vent channel 140.

[0082] The first vent channel 130 and the second vent channel further have first and second openings 132; 136; 142; 146. According to the embodiment in Fig. 2, the first and second openings 132; 136; 142; 146 are provided at opposite ends of the first / second vent channel 130; 140.

[0083] Alternatively, the openings 132; 136; 142; 146 may be formed along the first and second vent channels 130; 140, respectively.

[0084] The second labyrinth element 138; 148 can be formed in the region of the first openings 132; 142.

[0085] The first and second venting channels 130; 140 are formed at an angle offset from the outflow channel 124, for example, by an angle of approximately 90° according to Fig. 2.

[0086] In particular, the first and second venting channels 130; 140 in the side part 150 can be formed symmetrically to one another.

[0087] The second venting channel 140 has at least one first and / or second opening 142; 146.

[0088] Furthermore, at least one primary labyrinth element 144 is provided for the second venting channel 140.

[0089] According to Fig. 2, the second opening 136; 146 of the first and / or second venting channel 130; 140 can be formed without a secondary labyrinth element. Alternatively, a secondary labyrinth element can be arranged or formed in the region of the second opening 136; 146, for example, comparable to the embodiment according to Fig. 1.

[0090] Within the meaning of the present invention, the labyrinth elements 134; 138; 144 can each be provided or understood as a section of the fluid connection. Furthermore, according to Fig. 1 and Fig. 2, additional baffles can be provided along the fluid connection, for example, in the region of the outflow opening 120 within the air chamber unit 110.

[0091] The baffles can be formed as wall sections along the fluid connection or as separate structures, for example within the air chamber unit 110 and the outflow opening 122 as a convex surface facing opposite.

[0092] Fig. 3 shows a perspective view of a third embodiment of a venting device 100 according to Figs. 1 and 2. As shown in Fig. 3, the first side part 150 of the venting device 100 can be closed with a cover element 160. Optionally, a sealing element 170 can be arranged between the cover element 160 and the first side part 150. Alternatively, a correspondingly designed second side part can be provided next to the first side part 150.

[0093] The structures of the venting device 100, such as the air chamber element 110 and / or the outflow section 120 and / or the first / second venting channels 130; 140, can be configured to be symmetrically distributed along the surfaces to be arranged relative to one another in the first / second side parts, or can be configured to be asymmetrically distributed in the first / second side part.

[0094] Thus, it is possible for the air chamber element 110 to be formed primarily in the first side part 150, wherein the first venting channel 130 can be formed primarily in the second side part.

[0095] The function of the venting device 100 can now be described as follows: By means of the outflow section 120 arranged (vertically) at the bottom along the air chamber unit 110, any moisture / liquid that has penetrated can be discharged from the air chamber element 110 in the direction of the gravity force acting during normal use.

[0096] Furthermore, the arrangement of the outflow section 120, in particular the outflow opening 122, ensures that liquid can enter the air chamber element 110 exclusively in the vertical direction, whereby the air volume within the air chamber element 110 is compressed.

[0097] The structural arrangement, in particular of the outflow opening 122, provides protection against the ingress of liquid into the air chamber element 110 and can counteract the ingress.

[0098] The entry of liquid into the air chamber unit 110 can further be counteracted by the formation of an outflow channel 124, in particular by the outflow channel 124 being provided in the sense of a rising channel.

[0099] Along the openings 132; 136; 142 of the first / second venting channels 130; 140, the primary / secondary labyrinth elements 134; 138; 144 can perform a splash protection function, in particular by providing a fluid connection between the outside of the venting device 100 and the air chamber element 110 along at least one deflection point. A deflection point along the fluid connection can prevent a water jet or the like from penetrating directly in the longitudinal direction of one of the venting channels 130; 140 into the venting device 100 or into the air chamber element 110. By deflecting or splitting a water jet by means of the labyrinth elements 134; 138; 144 and the venting channels 130; 140, an (unhindered) penetration of moisture / liquid into the venting device 100 can be at least substantially prevented or counteracted.

[0100] In summary, the venting device 100 according to the invention can be used to provide advantageous venting for preferably a plurality of device units or valves to be vented.

[0101] In particular, a splash protection function can be provided by means of the labyrinth elements 134; 138; 144, wherein the venting unit 100 at least substantially prevents or counteracts the ingress of moisture / liquid, and the drainage of ingressed moisture / liquid can be facilitated or promoted or supported by means of openings 132; 136; 142; 146 of the venting channels 130; 140.

[0102] Furthermore, the outflow section 120 can be formed with an outflow opening 122, in particular in combination with an outflow channel 124, in order to counteract the rising of moisture / liquid into the (common) air chamber element 110 of the preferred plurality of device units / valves to be vented.

[0103] LIST OF REFERENCE SYMBOLS

[0104] 100 venting device

[0105] 110 Air chamber element

[0106] 112 Ventilation area

[0107] 120 outflow section

[0108] 122 Outlet opening

[0109] 124 outflow channel

[0110] 130 first ventilation duct

[0111] 132 first opening

[0112] 134 primary labyrinth element

[0113] 136 second opening

[0114] 138 secondary labyrinth element

[0115] 140 second ventilation duct

[0116] 142 third opening

[0117] 144 primary labyrinth element

[0118] 146 fourth opening

[0119] 150 first side panel

[0120] 160 cover element

[0121] 170 sealing element

[0122] A distance

[0123] B Distance

[0124] X first longitudinal axis

Claims

PATENT CLAIMS 1. Ventilation device (100), in particular for use with at least one valve unit or a plurality of valve units, with at least one air chamber element (110), at least one outflow section (120) and at least one first venting channel (130), for forming a fluid connection between an outer side of the venting device (100) and the at least one air chamber element (110), wherein the outflow section (120) provides the fluid connection between the air chamber element (110) and the at least one first venting channel (130) and is at least partially designed in the form of a riser channel, wherein the first venting channel (130) has at least one first and / or a second opening (132; 136), wherein the first venting channel is designed with at least one primary labyrinth element (134) and / or at least one secondary labyrinth element (138), wherein the at least one primary and / or secondary labyrinth element (134;138) is provided such that at least one deflection point is formed along the fluid connection between an outer side of the venting device (100) and the at least one air chamber element (110); 2. Ventilation device (100) according to claim 1, characterized in that the first venting channel (130) opens into the outflow section (120) along its first and / or second opening (132; 136) and the first and / or second labyrinth element (134; 138), in particular along the first opening (132) and the first and second labyrinth element (134; 138) and / or along the second opening (136) and the first labyrinth element (134) and / or second labyrinth element (138).

3. Ventilation device (100) according to one of the preceding claims, characterized in that at least one second venting channel (140) is provided with a first and / or second opening (142; 146), wherein the first and second venting channels (140) are preferably arranged on opposite end sides of the outflow section (120), in particular an outflow channel (124) of the outflow section (120), wherein the second venting channel (140) is formed with at least one primary and / or at least one secondary labyrinth element (144).

4. Ventilation device (100) according to one of the preceding claims, characterized in that the primary and / or secondary labyrinth element (134; 138; 144) each forms at least one deflection point along the fluid connection between the outside of the ventilation device (100) and the at least one air chamber element (110).

5. Ventilation device (100) according to one of the preceding claims, characterized in that the ventilation device (100) is designed in one part or in several parts, in particular with a first side part (150) and a cover element (160) or with mutually corresponding first and second side parts and a sealing element (170) arranged between the several parts (150; 160).

6. Ventilation device (100) according to one of the preceding claims, characterized in that the at least one outflow section (120) is formed at a lower end of the air chamber element (110) in the vertical direction.

7. Ventilation device (100) according to one of the preceding claims, characterized in that the at least one outflow section (120) is designed as at least one outflow opening (122) or as at least one outflow opening (122) in combination with at least one outflow channel (124) for providing a fluid connection between the air chamber element (110) and the at least one first vent channel (130).

8. Ventilation device (100) according to one of the preceding claims, characterized in that the venting device (100) is designed to accommodate and vent a plurality of valves in fluid communication with the air chamber element (110), wherein preferably a venting region (112) is formed for each of the plurality of valves along the air chamber element (110).

9. Ventilation device (100) according to one of the preceding claims, in particular according to claim 8 or 9, characterized in that the outflow section (120) is provided with at least one outflow channel (124) and at least one outflow opening (122) for forming a fluid connection between the outflow channel (124) and the air chamber element (110), wherein the air chamber element (110) is formed with at least one venting region (112), wherein a height distance (A) between an access region of the outflow opening (122), in particular on a side of the outflow opening (122) facing away from the air chamber element (110), and an access region of the outflow channel (124), in particular the furthest access point on a side of the outflow channel (124) facing away from the air chamber element (110), is smaller than a height distance (B) between an access region of the outflow opening (122),in particular on a side of the outflow opening (122) facing away from the air chamber element (110), and the nearest venting area (112).

10. Braking system, in particular for trucks, with at least one venting device (100) according to one of the preceding claims.

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