Sealing interface, air dryer cartridge, and air handling device

Abstract

The present invention relates to a sealing interface (10) for sealing between at least one desiccant container (14) and at least one base (12a) of an air dryer cylinder (12) of a vehicle, particularly a multi-purpose vehicle, the sealing interface comprising: at least one first housing structure (14a) capable of being disposed to the desiccant container (14), wherein at least one first sealing structure (16) is formed by the first housing structure (14a); and at least one second housing structure (12b) capable of being disposed to the base (12a) of the air dryer cylinder (12), wherein at least one second sealing structure (12b) is formed by the base (12a) of the air dryer cylinder (12). 8) Formed by the second housing structure (12b); and at least one sealing element (20), particularly an elastic and isotropic sealing element (20), which is arranged between the first sealing structure (16) and the second sealing structure (18) in the installed state, wherein at least one axial sealing surface (16a, 18a) and at least one radial sealing surface (16b, 18b) for contacting the sealing element (20) with respect to the longitudinal axis of the sealing interface (10) in the installed state are formed by the first sealing structure (16) and / or the second sealing structure (18). The present invention also relates to an air dryer cylinder for an air treatment device for a vehicle, particularly a multi-purpose vehicle, having at least one sealing interface (10) as described above, and also to an air treatment device for a vehicle, particularly a multi-purpose vehicle, having at least one sealing interface (10) and at least one air dryer cylinder (12) as described above respectively.

Description

Technical Field

[0001] The present invention relates to a sealing interface for sealing between at least one desiccant container and a base of at least one air dryer canister in a vehicle, particularly a multi-purpose vehicle, the sealing interface having at least one first housing structure, at least one second housing structure, and at least one sealing element.

[0002] Furthermore, the present invention relates to an air dryer cylinder for an air treatment device for vehicles, particularly multi-purpose vehicles, having at least one of the aforementioned sealing interfaces. Additionally, the present invention relates to an air treatment device for vehicles, particularly multi-purpose vehicles, having at least one of the aforementioned air dryer cylinders. Background Technology

[0003] In the automotive field, particularly in multi-purpose or commercial vehicles, pneumatic systems are commonly used for braking, suspension, and other auxiliary systems. In these systems, air distribution is handled by multi-circuit protection valves, which can divide the air supplied by a compressor or similar device and handle the different opening and closing pressures, pressure limits, and circuit protection for each circuit.

[0004] Before controlling the pressurized air in this way, an important step is to dry the air supplied by the compressor (because it still contains atmospheric humidity). This drying process is achieved by placing an air dryer cylinder between the compressor and the multi-loop protection valve, thus supplying dry and degreased air to the multi-loop protection valve.

[0005] Such a conventional air dryer cylinder is known in the prior art.

[0006] DE3208561A1 discloses an air drying apparatus having a connecting housing on which a cap-shaped container is mounted to accommodate a dryer cylinder. For ease of changing the dryer cylinder, a clamping bracket is used, which is rotatably mounted on the housing and can rotate and be fixed in place on the container.

[0007] DE69210614T2 discloses an air dryer control system in which compressed air output from a compressor is dried by one of two air dryers connected in parallel. The cleaning and drying cycles of the air dryer are alternated by a timing and relay device.

[0008] EP0933117A1 discloses a reversing valve for a gas drying system that cleans and dries unpurified pressurized airflow received from its source and supplies the airflow to a pneumatic system using this purified pressurized air. The valve includes a housing that connects a drying assembly to a structure that delivers unpurified pressurized air to the drying assembly.

[0009] EP2448801A1 discloses an air dryer cartridge for a compressed air treatment system for vehicles, particularly commercial vehicles, comprising a spring cover and a carrier element that together define the volume of the air dryer cartridge in an assembled state, wherein a dryer cartridge is provided disposed within the volume and filled with a desiccant.

[0010] US5,901,464A relates to a dual-tower air drying system for cleaning and drying unpurified pressurized airflow, comprising: a centrifugal separator having horizontally arranged baffles to substantially divide a centrifugal chamber into an upper chamber and a lower chamber; a pair of chambers, each containing a desiccant medium and a cleaning tube, wherein a baffle valve is disposed above the cleaning tube, the baffle valve closing and restricting airflow through the cleaning tube when air flows upward through the chamber, and opening and facilitating airflow through the cleaning tube when air flows downward through the chamber.

[0011] US5,961,698A discloses a dual-tower gas drying system for cleaning and drying an unpurified pressurized gas stream received from its source for use in a pneumatic system. The drying system includes a manifold block with multiple ports. A separator and a tank are connected to such a block and one of its ports for initial separation of moisture and particulates from the unpurified gas stream and for directing the remainder of the gas stream to another port within the block.

[0012] Basically, according to existing technology, the seal between the desiccant container and the air dryer cylinder containing the desiccant container is addressed by many different sealing elements. Due to the different operating conditions of this multi-purpose vehicle and the cylinder, such as vibration, temperature difference, humidity, and the necessity of desiccant pre-tightening within the desiccant container, a major aspect of the interaction between the desiccant container and the air dryer cylinder is relative axial movement, even in the final installed state. Therefore, a significant amount of component and structural space, as well as unintentional sealing problems, arise. Summary of the Invention

[0013] Therefore, one object of the present invention is to improve the above-mentioned sealing interface and air dryer cylinder, particularly by simplifying their structure and function, to provide better sealing performance and to make the sealing interface and air dryer cylinder easy to install.

[0014] According to the invention, this objective is achieved through a sealing interface with features according to the invention. Accordingly, the sealing interface for sealing between at least one desiccant container and at least one base of an air dryer cylinder of a vehicle, particularly a multi-purpose vehicle, comprises: at least one first housing structure assignable to the desiccant container, wherein at least one first sealing structure is formed by the first housing structure; at least one second housing structure assignable to the base of the air dryer cylinder, wherein at least one second sealing structure is formed by the second housing structure; and at least one sealing element, particularly an elastic and isotropic sealing element, which is arranged between the first sealing structure and the second sealing structure in the installed state, wherein at least one axial sealing surface and at least one radial sealing surface for contacting the sealing element relative to the longitudinal axis of the sealing interface in the installed state are formed by the first sealing structure and / or the second sealing structure.

[0015] The basic idea of ​​this invention is that the sealing interface provides at least one radial sealing surface and at least one axial sealing surface relative to the longitudinal axis of the sealing interface. This arrangement increases the overall sealing contact area of ​​the sealing element, leading primarily to improved sealing performance. Secondly, due to the larger sealing contact area, the surface pressure of the sealing element can be particularly reduced, thereby reducing material wear and strain, while simultaneously improving the service life and preload performance of the sealing element. In this regard, the sealing element can be formed from elastic or rubber materials and isotropic sealing materials, allowing axial compensation between the desiccant container and the cylinder to be established effectively in all directions of space. In particular, the sealing element can be formed as a single sealing element.

[0016] Therefore, the sealing element is formed from at least one circular sealing ring. For decades, circular sealing rings like O-rings have been considered a highly reliable, inexpensive, and efficient sealing solution. Moreover, O-rings offer a very easy and quick installation solution. In this respect, due to their isotropic and elastic material, O-rings provide a structurally very simple solution for sealing the first and second housing structures in both axial and radial directions. For example, the isotropic elastic material can be formed as rubber. It is also conceivable that, alternatively or additionally, the sealing element is formed from at least one sealing ring of a different shape. The shape of the sealing ring can be at least one circular K-ring, triangular ring, V-ring, square ring, gamma ring, wedge ring, sealing lens ring, flat sealing ring, molded sealing ring, and / or lip sealing ring, etc.

[0017] Additionally, at least one axial sealing surface and / or at least one radial sealing surface includes at least one sealing groove. According to the invention, the arrangement of the sealing groove within at least one sealing surface is closely related to the isotropic and elastic material properties of the sealing element. Therefore, in the installed state of the sealing interface, the sealing element is typically pre-tightened between at least one axial sealing surface and at least one radial sealing surface, resulting in pre-tightened contact between the sealing element and the sealing surfaces, respectively. Since the sealing groove is further disposed therein, and due to the pre-tightened state of the sealing element and its isotropic and elastic properties, the sealing element also extends into the sealing groove in a predetermined manner and with a predetermined sealing amount. This depends on multiple pre-tightening parameters (e.g., geometry, material, surface roughness, rubber elasticity, and the pre-tightening force of the desiccant container and its first housing structure). If the pre-tightening force of the sealing element changes (as is the case due to different operating parameters, such as vibration, temperature difference, and the necessity of desiccant pre-tightening within the desiccant container), the sealing element may respond to this change due to its elastic and isotropic properties. When the preload of the desiccant container decreases, it typically leads to an increase in the distance between the sealing surfaces. This reduces the preload of the sealing element and decreases the predetermined volume of the sealing element within the sealing groove, as the sealing element must compensate for the increased distance between the sealing surfaces. Conversely, when the preload of the desiccant container increases, it typically leads to a decrease in the distance between the sealing surfaces. This increases the preload of the sealing element, and the predetermined volume of the sealing element extending within the sealing groove again increases, as the sealing element must correspondingly compensate for the decreased distance between the sealing surfaces. In other words, the sealing groove provides a compensating or storage volume for the sealing element to compensate for the varying distance between the sealing surfaces, which differs between normal and intentional operation of the sealing interface.

[0018] Furthermore, regarding the longitudinal axis of the sealing interface, at least one first axial sealing surface and at least one first radial sealing surface for contacting the sealing element are formed by a first sealing structure. By providing at least one first axial sealing surface and at least one first radial sealing surface, the overall sealing surface is increased, resulting in higher sealing performance while reducing the surface pressure of the sealing element. Therefore, a longer service life can be provided, while improving sealing performance and sealing safety.

[0019] Furthermore, regarding the longitudinal axis of the sealing interface, at least one second axial sealing surface and at least one second radial sealing surface for contacting the sealing element are formed by a second sealing structure. According to the argument of the first sealing structure, the at least one second axial sealing surface and at least one second radial sealing surface further increase the sealing surface, resulting in higher sealing performance along with a decrease in surface pressure of the sealing element. Therefore, even a longer service life can be provided while improving sealing performance and sealing safety.

[0020] Furthermore, the first axial sealing surface and / or the second axial sealing surface include at least one sealing groove. As described above, the sealing groove, together with the elasticity and isotropic material properties of the sealing element, can compensate for the constantly changing preload conditions, particularly the preload conditions of the desiccant container on the air dryer cylinder. Since the preload conditions of the desiccant container vary, especially in the axial direction (according to the longitudinal axis of the sealing interface), an axial sealing surface with a corresponding sealing groove is advantageous in this regard.

[0021] Furthermore, the first radial sealing surface and / or the second radial sealing surface includes at least one sealing groove. As mentioned above, the sealing groove, together with the elastic and isotropic sealing element, can compensate for the continuously changing preload conditions, particularly in the desiccant container. As mentioned above, the preload conditions of the desiccant container vary, particularly axially (according to the longitudinal axis of the sealing interface). However, since the sealing element has isotropic elastic properties, radial sealing surfaces with corresponding sealing grooves are also advantageous in this regard, because the sealing element, due to its isotropic properties, can also compensate for or convert axial movement into radial extension within the sealing groove.

[0022] Specifically, the sealing element is arranged in the installed state such that at least one axial movement of the first housing structure relative to the second housing structure can be compensated, or vice versa. As described above, the sealing interface is exposed to various preload conditions (e.g., preload of the desiccant container and its first housing structure relative to the base of the air dryer cylinder). If the preload force of the sealing element changes due to normal operation of the cylinder, the sealing element can respond to such changes as described above. Therefore, this structural and functional configuration is advantageous in terms of more reliable operation of the sealing interface together with the desiccant container and the air dryer cylinder.

[0023] Furthermore, the sealing element, in its installed state, is arranged such that the first housing structure, along with its dispensable desiccant container, can be pre-tightened onto the base of the second housing structure, along with its dispensable air dryer cylinder. In this configuration, the resilient sealing element, in addition to its sealing function, also functions like a rubber spring based on the pre-tightening mechanism of the entire desiccant container and air dryer cylinder. Therefore, since the sealing element performs at least two functions (sealing and pre-tightening) in a single element, a very efficient sealing interface and air dryer cylinder can be provided, thus enabling a space-saving design.

[0024] Furthermore, the air dryer cylinder of the air treatment device for vehicles, particularly multi-purpose vehicles, according to the present invention comprises: at least one desiccant container including at least one first housing structure; at least one base including at least one second housing structure for supporting the desiccant container; and at least one sealing interface as described above. The advantages and technical teachings regarding the sealing interface as described above can also be correspondingly applied to the air dryer cylinder, which is a sub-unit of the air dryer cylinder.

[0025] According to the present invention, the air treatment device for vehicles, particularly multi-purpose vehicles, is further provided with at least one air dryer cylinder as described above. The advantages and technical principles regarding the sealing interface and air dryer cylinder described above can also be correspondingly applied to the air treatment device, which is a sub-unit of the air treatment device. Attached Figure Description

[0026] Further details and advantages of the invention will now be disclosed, in conjunction with the accompanying drawings, in one embodiment of the invention.

[0027] In the picture:

[0028] Figure 1 This is a schematic partial cross-sectional view of an embodiment of a sealing interface for an air dryer cylinder for a vehicle according to the present invention. Detailed Implementation

[0029] Figure 1 A schematic partial cross-sectional view of a sealing interface 10 of an air dryer cylinder 12 for a multi-purpose vehicle (not shown) according to the present invention is shown.

[0030] The sealing interface 10 between the desiccant container 14 and the base 12a of the air dryer canister 12 for sealing a multi-purpose vehicle includes a first housing structure 14a. This first housing structure 14a is assigned to or can be assigned to the desiccant container 14.

[0031] Specifically, the first housing structure 14a is integratedly attached to or can be attached to the desiccant container 14 at the bottom portion of the desiccant container 14.

[0032] The first housing structure 14a and the desiccant container 14 are made of plastic material.

[0033] In addition, the first housing structure 14a forms the first sealing structure 16.

[0034] Accordingly, the sealing interface 10 includes a second housing structure 12b, which is assigned to or can be assigned to the base 12a of the air dryer cylinder 12.

[0035] Specifically, the second housing structure 12b is integratedly attached to or can be attached to the base 12a of the air dryer cylinder 12.

[0036] The second shell structure 12b and the base 12a are made of aluminum alloy.

[0037] Accordingly, the second housing structure 12b forms the second sealing structure 18.

[0038] The sealing interface 10 also includes a sealing element 20, which is in the form of an elastic and isotropic sealing element.

[0039] With the sealing interface 10 installed, the sealing element 20 is arranged between the first sealing structure 16 and the second sealing structure 18 in a pre-tightened manner.

[0040] The sealing element 20 is formed of a circular sealing ring, such as an O-ring, which has a circular cross-section when it is not pre-tightened.

[0041] Alternatively or additionally, the shape of the sealing ring may be at least one circular K-ring, triangular ring, V-ring, U-ring, square ring, γ-ring, grooved ring, wedge ring, sealing lens ring, flat sealing ring, molded sealing ring, diaphragm ring, or lip sealing ring, etc.

[0042] Alternatively or otherwise, the sealing ring may be used independently or integratedly or in combination with the support ring.

[0043] Relative to the longitudinal axis of the sealing interface ( Figure 1 (not shown in the image) The sealing interface 10 also includes at least one axial sealing surface 16a, 18a and at least one radial sealing surface 16b, 18b for contacting the sealing element 20.

[0044] At least one axial sealing surface 16a, 18a and at least one radial sealing surface 16b, 18b are formed by a first sealing structure 16 and a second sealing structure 18, respectively.

[0045] In particular, according to Figure 1 The first axial sealing surface 16a and the first radial sealing surface 16b, which are used to contact the sealing element 20 relative to the longitudinal axis of the sealing interface, are formed by the first sealing structure 16.

[0046] Accordingly, the second axial sealing surface 18a and the second radial sealing surface 18b for contacting the sealing element 20 relative to the longitudinal axis of the sealing interface are formed by the second sealing structure 18.

[0047] from Figure 1 It can also be seen that the first radial sealing surface 16b includes a sealing groove 16c.

[0048] Alternatively or additionally, it may be conceivable that the first axial sealing surface 16a includes a sealing groove (in Figure 1 (Not shown in the image).

[0049] Alternatively or additionally, it may be conceivable that the second axial sealing surface 18a includes a sealing groove (not in Figure 1 (As shown in the image).

[0050] Alternatively or additionally, it can be imagined that the second radial sealing surface 18b includes a sealing groove (not in...) Figure 1 (As shown in the image).

[0051] The first axial sealing surface 16a is formed by an annular surface formed by the axial protrusion of the first housing structure 14a at the bottom of the desiccant container 14.

[0052] The first axial sealing surface 16a has a radially free outer end 16d depending on the installation state.

[0053] The first axial sealing surface 16a is perpendicularly aligned with respect to the longitudinal axis of the sealing interface 10.

[0054] The first radial sealing surface 16b is also formed by an annular sealing surface, which, depending on the installation state, has an axially free lower end 16e.

[0055] The first radial sealing surface 16b is concentrically aligned with respect to the longitudinal axis of the sealing interface 10.

[0056] The first axial sealing surface 16a and the first radial sealing surface 16b are connected to each other by a first transition sealing surface 16f, which is formed by a quarter circle.

[0057] Depending on the installation state, the first axial sealing surface 16a is arranged radially outward relative to the first radial sealing surface 16b.

[0058] Furthermore, depending on the installation state, the first radial sealing surface 16b is axially arranged below the first axial sealing surface 16a.

[0059] In addition, the first radial sealing surface 16b includes a sealing groove 16c, which is formed by an annular groove in the first radial sealing surface 16b.

[0060] The sealing groove 16c has an open side facing the sealing element 20 in the installed state.

[0061] The first radial sealing surface 16b, together with the sealing groove 16c, is formed by an annular protrusion that extends axially and integrally from the bottom portion of the desiccant container 14 by the first housing structure 14a.

[0062] The second axial sealing surface 18a is also formed of an annular surface, which is formed at the bottom of the annular recess 12c of the second housing structure 12b of the base 12a.

[0063] The second axial sealing surface 18a has a radially free inner end 18c depending on the installation state.

[0064] The second axial sealing surface 18a is relative to the longitudinal axis of the sealing interface 10 ( Figure 1 (Not shown in the image) Aligned vertically.

[0065] The second radial sealing surface 18b is also formed of an annular surface, which, depending on the installation state, has an axial upper end 18d.

[0066] The second radial sealing surface 18b is concentrically aligned with respect to the longitudinal axis of the sealing interface 10.

[0067] The second axial sealing surface 18a and the second radial sealing surface 18b are connected to each other by a second transition sealing surface 18e, which is formed by a quarter circle.

[0068] Depending on the installation state, the second axial sealing surface 18a is arranged radially inside the second radial sealing surface 18b.

[0069] Furthermore, depending on the installation state, the second radial sealing surface 18b is axially arranged above the second axial sealing surface 18a.

[0070] Furthermore, the second radial sealing surface 18b is incorporated into the inclined sealing surface 18f at its axial upper end 18d, which is radially outward relative to the second radial sealing surface 18b.

[0071] Depending on the installation state, the first axial and first radial sealing surfaces 16a and 16b are arranged axially and radially within the geometric extension of the annular groove 12c of the second housing structure 12b, which forms the structural basis for the second axial and radial sealing surfaces 18a and 18b.

[0072] exist Figure 1 The cross-sectional view also shows, in part, the air dryer cylinder 12 of the air treatment unit (not shown) for a multi-purpose vehicle.

[0073] The air dryer cylinder 12 includes a desiccant container 14 having a first housing structure 14a, which corresponds to the first housing structure 14a described above in relation to the sealing interface 10.

[0074] The air dryer cylinder 12 also includes a base 12a for supporting the desiccant container 14, wherein the base 12a includes the second housing structure 12b described above in relation to the sealing interface 10.

[0075] Accordingly, the air dryer cylinder 12 also includes the sealing interface 10 as described above in the installed state.

[0076] The advantages and technical teachings regarding the sealing interface 10 described above can also be applied accordingly to the air dryer cylinder 12, which is a sub-unit of the air dryer cylinder 12.

[0077] According to the present invention, the air treatment device (not shown) for a multi-purpose vehicle is further provided with at least one air dryer cylinder 12 as described above.

[0078] Therefore, the advantages and technical teachings mentioned above, as well as those concerning the sealing interface 10 and the air dryer cylinder 12, can also be applied accordingly to the air handling unit, which is a sub-unit of the air handling unit.

[0079] The functions of the sealing interface 10 and the air dryer cylinder 12 of the present invention are as follows:

[0080] according to Figure 1 The sealing interface 10 is shown in the installed state.

[0081] Since the desiccant container 14 is installed in the air dryer cylinder 12 in a pre-tightened manner, the first housing structure 14a of the desiccant container 14 can be axially moved at least relative to the second housing structure 12b of the base 12a of the air dryer cylinder 12.

[0082] In addition, the O-ring type sealing element 20 is installed in a pre-tightened manner, and it maintains pre-tightened contact with the first radial and axial sealing surfaces 16a, 16b and the second radial and axial sealing surfaces 18a, 18b of the sealing interface 10.

[0083] Since a sealing groove 16c is also provided (see explanation above), and due to the pre-tightened state of the sealing element 20 and its isotropic and elastic properties, the sealing element 20 also extends into the sealing groove according to a predetermined volume.

[0084] This depends on several preload parameters (such as geometry, material, surface roughness, rubber elasticity, and preload force of the desiccant container and its first housing structure).

[0085] Therefore, if the preload of the desiccant container 14 and its first housing structure 14 changes, the axial distance between the first and second housing structures 12b and 14a will change slightly in a predetermined manner.

[0086] Therefore, the sealing element 20 is arranged in the installed state such that axial movement of the first housing structure 14a relative to the second housing structure 12b can be compensated, or vice versa.

[0087] Therefore, when the preload of the desiccant container 14 is reduced, for example as explained above, the predetermined volume of the sealing element 20 extending within the sealing groove 16c will be reduced, because the sealing element must compensate for the increased axial distance between the two axial sealing surfaces 16a, 18a.

[0088] According to the opposite characteristics of the desiccant container 14, when the preload of the desiccant container 14 increases, it usually leads to a decrease in the distance between the axial sealing surfaces 16a and 18a. When the preload of the sealing element increases, the predetermined volume of the sealing element extending into the sealing groove 16c increases again, because the sealing element must compensate for the reduced distance between the two axial sealing surfaces 16a and 18a accordingly.

[0089] In other words, the sealing groove 16c provides compensation or storage for the sealing element 20 to compensate for the different distances between the axial sealing surfaces 16a, 18a, which are different during normal and intentional operation of the sealing interface 10 and the air dryer cylinder 12.

[0090] The characteristic discussed above regarding the axial variation distance between the first and second axial sealing surfaces 16a and 18a can also be applied to the radial variation distance between the first and second radial sealing surfaces 16a and 18a.

[0091] The preload of the desiccant container 14 can be established by a preload spring (not shown).

[0092] Furthermore, the sealing element 20 is arranged in the installed state such that the first housing structure 14a and the desiccant container 14 to which it can be dispensed can be pre-tightened relative to the base 12a of the second housing structure 12b and the air dryer cylinder 12 to which it can be dispensed.

[0093] This combined functional characteristics of the sealing element 20 result in better sealing performance because the general sealing interface 10 and the specific sealing element 20 can be adapted to and compensate for each pre-tightened state of the desiccant container 14 within a predetermined range.

[0094] Arrows and / or arrow portions not associated with reference numerals do not contribute to the subject matter of the sealing interface 10, air dryer cylinder 12, and air handling apparatus according to the invention.

[0095] List of reference numerals

[0096] 10 Sealed Interface

[0097] 12 air dryer cylinders

[0098] 12a base

[0099] 12b Second Shell Structure

[0100] 12c annular groove

[0101] 14 Desiccant Container

[0102] 14a First Shell Structure

[0103] 16 First sealing structure

[0104] 16a First Axial Sealing Surface

[0105] 16b First radial sealing surface

[0106] 16c sealing groove

[0107] 16d radial free outer end

[0108] 16e Axial Free Lower End

[0109] 16f First Transition Sealing Surface

[0110] 18 Second sealing structure

[0111] 18a Second Axial Sealing Surface

[0112] 18b Second Radial Sealing Surface

[0113] 18c radial free inner end

[0114] 18d axial upper end

[0115] 18e Second Transition Sealing Surface

[0116] 18f Inclined Sealing Surface

[0117] 20 sealing elements

Claims

1. A sealing interface (10) for sealing between at least one desiccant container (14) and at least one base (12a) of an air dryer cylinder (12) of a vehicle, said sealing interface having: at least one first housing structure (14a) capable of being distributed to said desiccant container (14), wherein, At least one first sealing structure (16) is formed by the first housing structure (14a); at least one second housing structure (12b) is available for assignment to the base (12a) of the air dryer cylinder (12), wherein at least one second sealing structure (18) is formed by the second housing structure (12b); and at least one sealing element (20) is arranged between the first sealing structure (16) and the second sealing structure (18) in the installed state, wherein at least one axial sealing surface (16a, 18a) and at least one radial sealing surface (16b, 18b) for contacting the sealing element (20) relative to the longitudinal axis of the sealing interface (10) in the installed state are formed by the first sealing structure (16) and / or the second sealing structure (18). The at least one axial sealing surface (16a, 18a) and / or the at least one radial sealing surface (16b, 18b) includes at least one sealing groove (16c), wherein the sealing groove (16c) provides compensation or storage for the sealing element (20) to compensate for the different distances of the at least one axial sealing surface (16a, 18a) and / or the at least one radial sealing surface (16b, 18b), the distances being different during normal and intentional operation of the sealing interface (10).

2. The sealing interface (10) according to claim 1, characterized in that, The sealing element (20) is formed by at least one circular sealing ring.

3. The sealing interface (10) according to claim 1, characterized in that, The vehicle is a multi-purpose vehicle, and the sealing element (20) is an elastic and isotropic sealing element.

4. The sealing interface (10) according to any one of claims 1-3, characterized in that, At least one first axial sealing surface (16a) and at least one first radial sealing surface (16b) for contacting the sealing element (20) relative to the longitudinal axis of the sealing interface (10) are formed by the first sealing structure (16).

5. The sealing interface (10) according to claim 4, characterized in that, At least one second axial sealing surface (18a) and at least one second radial sealing surface (18b) for contacting the sealing element (20) relative to the longitudinal axis of the sealing interface (10) are formed by the second sealing structure (18).

6. The sealing interface (10) according to claim 5, characterized in that, The first axial sealing surface (16a) and / or the second axial sealing surface (18a) include at least one sealing groove (16c).

7. The sealing interface (10) according to claim 5, characterized in that, The first radial sealing surface (16b) and / or the second radial sealing surface (18b) include at least one sealing groove (16c).

8. The sealing interface (10) according to any one of claims 1-3 and 5-7, characterized in that, The sealing element (20) is arranged in the installed state such that at least one axial movement of the first housing structure (14a) relative to the second housing structure (12b) can be compensated, or vice versa.

9. The sealing interface (10) according to any one of claims 1-3 and 5-7, characterized in that, The sealing element (20) is arranged in the installed state such that the first housing structure (14a) together with the desiccant container (14) to which it can be dispensed can be pre-tightened relative to the base (12a) of the second housing structure (12b) together with the air dryer cylinder (12) to which it can be dispensed.

10. An air dryer canister (12) for an air treatment device for a vehicle, comprising: at least one desiccant container (14) including at least one first housing structure (14a); at least one base (12a) including at least one second housing structure (12b) for supporting the desiccant container (14); and at least one sealing interface (10) according to any one of claims 1-9.

11. The air dryer cylinder (12) according to claim 10, characterized in that, The vehicle in question is a multi-purpose vehicle.

12. An air treatment device for a vehicle, having at least one air dryer cylinder (12) according to claim 10.

13. The air handling apparatus according to claim 12, characterized in that, The vehicle in question is a multi-purpose vehicle.

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