SEALING ARRANGEMENT, HIGH-PRESSURE PUMP AND METHOD FOR MAKING A SEALING ARRANGEMENT

Description

[0001] The present invention relates to a sealing arrangement for sealing between two receiving spaces for receiving two media in the area of ​​a movable component. Sealing arrangements are from DE 10 2006 055 298 A1, DE 10 2014 100 577 A1, WO 2016 / 096516 A1, WO 2014 / 048606 A1, DE 10 2013 000 154 A1, EP 1 277 951 A2, EP 1 394 452 A1, DE 10 2016 202 211 A1, DE 101 16 658 A, EP 1 284 358 A2, DE 10 2017 211 353 A1 (according to the preamble of claim 1), US 2007 / 057472 A1 and DE 10 2017 110 115 A1 known.

[0002] Furthermore, the present invention relates to the use of a sealing arrangement according to the invention as a rod seal, piston seal and / or shaft seal.

[0003] The invention further relates to a high-pressure pump comprising at least one sealing arrangement according to the invention.

[0004] Furthermore, the invention relates to a method for manufacturing a sealing arrangement. The objective of the present invention is to provide a sealing arrangement that is easy to assemble and ensures a reliable seal.

[0005] This problem is solved according to the invention by a sealing arrangement according to the independent device claim.

[0006] Preferably, a sealing arrangement is provided for sealing between two receiving spaces for receiving two media in the area of ​​a movable component, which is displaceable along a longitudinal central axis of the movable component and / or rotatable about the longitudinal axis. The sealing arrangement comprises, in particular, a support element and an annular sealing element arranged on the support element, which, in the assembled state, bears against the movable component for sealing.

[0007] The sealing element is preferably attached to the carrier element using an injection molding process.

[0008] By fixing the sealing element to the carrier element using an injection molding process, a durable connection between the carrier element and the sealing element is formed. In particular, tolerances in the manufacture of the carrier element are essentially negligible, since the sealing element can be individually adapted to the dimensions of the respective carrier element.

[0009] Preferably, the sealing element is injection-molded onto the carrier element. For example, the carrier element is completely or partially overmolded with the sealing element.

[0010] It can be advantageous if the sealing element is injected into the carrier element.

[0011] Using an injection molding process can enable simple manufacturing and assembly of the sealing assembly, thus reducing production costs.

[0012] It can be advantageous if the support element and the sealing element cannot be separated from each other without damage in a completed state of the sealing arrangement.

[0013] The support element is preferably designed to fit precisely into a sealing recess of a housing of a first receiving space and / or a second receiving space.

[0014] Any reference to the longitudinal center axis of the moving component preferably also applies to a symmetry axis of the sealing arrangement and / or a longitudinal center axis of the sealing arrangement and / or a center axis of the sealing arrangement and / or a central axis of the sealing arrangement.

[0015] The axial direction preferably extends from a second receiving space of the two receiving spaces towards a first receiving space of the two receiving spaces. In particular, the axial direction extends from an outer section of the support element towards a sealing element receiving section of the support element, wherein the axial direction is arranged particularly parallel to the longitudinal center axis of the movable component.

[0016] It can be provided that the sealing element surrounds an axial end section of the support element, which faces a first receiving space of the two receiving spaces, in an axial direction.

[0017] The first receiving chamber is preferably filled with a first medium, in particular with a liquid, for example with motor oil.

[0018] A second receiving chamber of the two receiving chambers, arranged on a side of the sealing arrangement facing away from the first receiving chamber, is preferably filled with a second medium, in particular with a liquid, for example with a fuel.

[0019] It can be provided that an axial end section of the sealing arrangement is formed by the sealing element. The support element terminates in the axial direction, particularly in front of the sealing element. In this way, a force-fit and / or positive-fit connection between the sealing element and the support element can be formed in the axial direction.

[0020] Preferably, the sealing element covers the axial end section of the support element in the axial direction with respect to the longitudinal center axis of the moving component. This preferably minimizes and / or prevents the ingress and / or migration of a medium into the area between the support element and the sealing element.

[0021] It can be advantageous if the sealing element encloses the axial end section on three sides. For example, the sealing element is in direct material contact with a radially inner contact surface of the support element, a radially outer contact surface of the support element, and an end face of the support element. The end face of the support element connects, in particular, the radially inner contact surface and the radially outer contact surface of the support element.

[0022] In particular, the support element is completely surrounded by the sealing element in the circumferential direction of the moving component.

[0023] The sealing element preferably forms a static sealing lip on its end face. The sealing lip preferably acts to support the seal and / or to inhibit shrinkage.

[0024] It may be provided that the sealing element is designed with interruptions on its end face with respect to the circumferential direction of the moving component.

[0025] It can be advantageous if the axial end section of the support element is overmolded with material of the sealing element in the axial direction with respect to the longitudinal center axis of the moving component and / or on the end face.

[0026] The sealing element can be designed to surround the radially outer contact surface of the support element. Alternatively, or additionally, the sealing element can surround the radially inner contact surface of the support element. In particular, the sealing element is injection-molded onto the radially outer contact surface. In particular, the sealing element is injection-molded onto the radially inner contact surface of the support element. This can ensure improved adhesion of the sealing element to the support element.

[0027] A hollow cylindrical sealing element receiving section of the carrier element has one or more radial openings which are filled by the sealing element. The sealing element is injected, in particular, through the one or more radial openings of the carrier element. This allows the sealing element to be anchored to the carrier element. The sealing element is thus fixed, in particular, along the axial and / or a radial direction with respect to the longitudinal center axis of the moving component relative to the carrier element.

[0028] A particularly good fixing of the sealing element to the support element can be achieved if the sealing element is passed through one or more radial openings and extends along the radially inner contact surface and / or the radially outer contact surface of the support element.

[0029] Passing the sealing element through one or more radial openings preferably reduces shrinkage. In particular, weld seam problems, which occur, for example, with a conventional fixing of the sealing element to the support element, can be reduced.

[0030] The one or more radial openings of the support element preferably form openings, in particular through-openings, in the support element in a radial direction with respect to the longitudinal center axis of the movable component.

[0031] For example, one or more radial openings are arranged in a sealing element receiving section of the support element, which in particular receives a base body of the sealing element.

[0032] In embodiments in which the support element has several openings, these preferably penetrate the support element in different radial directions with respect to the longitudinal center axis of the movable component.

[0033] It can be advantageous if several radial openings of the support element are regularly arranged in the support element with respect to a circumferential direction of the movable component.

[0034] One or more of the radial openings of the support element are preferably bore(s).

[0035] For example, one or more radial openings of the support element are punched out of the support element.

[0036] It can be advantageous if one or more radial openings have a round shape. "Round" preferably means essentially circular.

[0037] Additionally or alternatively, one or more radial openings of the support element have a non-round shape. Examples of non-round radial opening shapes include oval, triangular, cloud-like, and / or rectangular shapes.

[0038] Preferably, all radial openings of the support element have the same shape.

[0039] Alternatively, the support element can be provided with several radial openings of different shapes.

[0040] For example, one or more radial openings are elongated holes. This allows for optimized shrinkage behavior of the sealing element.

[0041] Preferably, the support element is surrounded in the axial direction with respect to the longitudinal center axis of the movable component between one or more radial openings of the support element in an axial end section essentially on four sides and / or completely by the sealing element.

[0042] Preferably, the sealing element is fixed to the support element in a labyrinth-like manner.

[0043] It may be provided that the support element has a transverse section whose main extension plane is arranged essentially transversely, in particular perpendicularly, to the longitudinal center axis of the movable component.

[0044] The transverse section preferably has one or more axial depressions in which the transverse section has a locally reduced thickness and / or an axial setback in the axial direction with respect to the longitudinal center axis of the movable component.

[0045] Additionally or alternatively, the sealing element has one or more axial protrusions in which the sealing element has a locally increased thickness and / or an axial projection in the axial direction with respect to the longitudinal center axis of the moving component.

[0046] The one or more axial protrusions are specifically received in and / or engaged within the one or more axial recesses. This preferably allows for a shrinkage-resistant design of the sealing element.

[0047] Two of the one or more axial depressions of the transverse section and two of the one or more axial protrusions of the sealing element are preferably designed to be complementary to each other.

[0048] Preferably, the one or more axial recesses and the one or more axial protrusions of the sealing assembly prevent displacement of the sealing element relative to the support element along the axial direction with respect to the longitudinal center axis of the movable component when the assembly is assembled. A positive fit and / or force fit is preferably formed between the sealing element and the support element.

[0049] A displacement of the sealing element relative to the support element in the opposite direction to the axial direction is preferably inhibited and / or blocked by covering the axial end section of the support element with the sealing element.

[0050] In particular, the one or more axial recesses and the one or more axial protrusions form a positive fit and / or force fit in the radial direction and / or axial direction with respect to the longitudinal center axis of the moving component when the sealing arrangement is mounted.

[0051] The sealing element is preferably fixed relative to the support element in a radial and / or axial direction.

[0052] Internal leakage within the sealing assembly can be avoided.

[0053] In the case of a locally reduced thickness, the thickness of the support element in the area of ​​one or more axial recesses is preferably about 10% or more, in particular about 20% or more, less than the average thickness of the support element in adjacent areas.

[0054] In the case of a locally reduced thickness, the thickness of the support element in the area of ​​one or more axial recesses is preferably about 60% or less, for example about 40% or less, less than the average thickness of the support element in adjacent areas.

[0055] In the case of a locally increased thickness, the thickness of the sealing element in the area of ​​one or more axial protrusions is preferably approximately 10% or more, in particular approximately 20% or more, greater than the average thickness of the sealing element in adjacent areas.

[0056] In the case of a locally increased thickness, the thickness of the sealing element in the area of ​​one or more axial protrusions is preferably approximately 60% or less, in particular approximately 40% or less, greater than the average thickness of the sealing element in adjacent areas.

[0057] Preferably, the one or more axial recesses are, in particular, annular grooves and / or beads.

[0058] In embodiments in which several axial recesses are provided, the axial recesses are preferably coaxial.

[0059] Alternatively or in addition to the formation of one or more axial depressions in the form of areas of reduced thickness, at least one of the axial depressions is formed by a curvature of the transverse section in the axial direction.

[0060] The curvature forms, in particular, an axial retraction.

[0061] Preferably, the sealing element has one or more axial protrusions, in particular ring-shaped, material thickenings.

[0062] The axial recesses and the axial projections, in particular those engaging therein, preferably provide radial and / or axial locking of the sealing element's position relative to the support element.

[0063] As an alternative to the embodiments described above, it may be provided that one or more axial recesses are formed in the sealing element and one or more axial protrusions are formed in the support element. The details relating to the axial recesses and / or protrusions apply equally to these embodiments.

[0064] The support element preferably comprises an outer section which is arranged on a side of the sealing element receiving section that is arranged towards the second receiving space of the two receiving spaces.

[0065] The sealing element receiving section and the outer section are connected to each other, in particular by the transverse section of the support element.

[0066] The support element may have an edge section that surrounds the outer section in a ring shape. In the area of ​​the edge section, the support element is preferably bent outwards with respect to the longitudinal center axis of the movable component.

[0067] Preferably, the support element is a metal component, in particular a deep-drawn metal component.

[0068] The supporting element may include one or more openings and / or one or more notches.

[0069] It can be advantageous if the sealing element has a collar section on a side facing the second receiving space, which connects to the base body of the sealing element and has a sealing lip at one end. The sealing lip is interrupted and / or perforated, particularly in the circumferential direction of the moving component and / or the sealing element, by one or more relief grooves.

[0070] The collar section preferably forms an axial end of the sealing element facing away from the axial end section of the support element. The collar section can protect the sealing element, for example during transport or assembly.

[0071] One or more relief grooves can preferably compensate for manufacturing tolerances in the support element.

[0072] The sealing lip preferably minimizes the ingress and / or migration of a medium between the support element and the sealing element.

[0073] It can be advantageous if the collar section extends away from the base body of the sealing element on a side facing the second receiving chamber. The collar section preferably forms an additional seal for a sealing chamber.

[0074] The collar section is specifically adapted to a shape of the support element that widens in the opposite direction to the axial direction with respect to the longitudinal center axis of the movable component.

[0075] Preferably, the collar section is located at a transition area between the sealing element receiving section and the transverse section of the support element, in particular directly.

[0076] The collar section preferably widens in a direction away from the radial end section of the support element and / or in the opposite direction to the axial direction.

[0077] It can be advantageous if the sealing element is made in one piece, especially if it is manufactured using an injection molding process.

[0078] It may be provided that one or more relief grooves are formed in the sealing element, through which stresses in the circumferential direction in particular can be absorbed.

[0079] For example, the sealing lip of the collar section is interrupted in the circumferential direction by one or more relief grooves.

[0080] The one or more relief grooves are preferably manufactured and / or injection-molded using an injection molding process.

[0081] The sealing lip of the collar section forms, in particular, a static sealing lip and / or provides a static seal. The sealing lip acts, in particular, to support the seal and / or to inhibit shrinkage.

[0082] It may be provided that the sealing lip of the collar section is pre-tensioned by means of a spring device, for example a type of disc spring, a coil spring, or a bellows spring.

[0083] The spring device preferably forms part of the sealing arrangement.

[0084] The spring device is preferably supported on an inner side of the transverse section and / or a flank of the movable component.

[0085] Preferably, the sealing element comprises a thermoplastic polymer material, in particular a thermoplastic fluoropolymer material, or is formed from a thermoplastic polymer material, in particular a thermoplastic fluoropolymer material.

[0086] The thermoplastic polymer material is preferably melt-processable.

[0087] The fluoropolymer material includes, in particular, partially or fully fluorinated polymer materials or mixtures thereof, or is formed from them.

[0088] For example, the sealing element is made of PFA, PVDF or mixtures thereof.

[0089] It may be provided that the sealing element, in particular the base body of the sealing element, is made of a pure PTFE material or of a PTFE compound material.

[0090] It can be advantageous to use a TFE copolymer with a comonomer content of more than 0.5 wt.%. A comonomer content in this range allows the molecular weight of the polymer chains to be reduced without compromising the material's mechanical strength, thus lowering the melt viscosity and enabling processing via injection molding.

[0091] The comonomer is preferably selected from a perfluoroalkyl vinyl ether, in particular perfluoromethyl vinyl ether, hexafluoropropylene, and perfluoro-(2,2-dimethyl-1,3-dioxol). Depending on the comonomer content, the fully fluorinated thermoplastic is then a so-called melt-processable PTFE (comonomer content up to approximately 3 wt.%), a PFA (more than approximately 3 wt.% perfluoroalkyl vinyl ether as a comonomer), an MFA (more than approximately 3 wt.% perfluoromethyl vinyl ether as a comonomer), or an FEP (more than approximately 3 wt.% hexafluoropropylene as a comonomer).

[0092] The TFE copolymer can also comprise various comonomers. Likewise, it is possible that the fully fluorinated thermoplastic polymer material comprises a mixture of different TFE copolymers.

[0093] The material of the sealing element, in particular the base body, can be formed partially or essentially entirely from the fully fluorinated thermoplastic polymer material.

[0094] Alternatively or additionally, the material can include one or more fillers, in particular pigments, friction-reducing additives and / or thermal resistance-enhancing additives, to further optimize the properties of the sealing element and adapt them to the respective requirements.

[0095] Furthermore, a thermoplastic polymer material that is particularly resistant to high temperatures and / or chemicals, especially PEEK, PEAK, PEI, may be used as the thermoplastic polymer material.

[0096] In particular, high dimensional stability of the thermoplastic polymer material can be achieved by manufacturing the sealing element using an injection molding process.

[0097] An additional sealing element, in particular made of an elastomer material, may be provided for sealing.

[0098] It can be advantageous if the support element has one or more radial recesses, in particular one or more grooves, in which one or more, in particular complementary, radial projections of the sealing element rest and / or engage.

[0099] The one or more grooves are preferably ring-shaped.

[0100] For example, one or more radial depressions are formed in the form of beads.

[0101] By engaging and / or bearing against one or more radial projections in / onto one or more radial recesses, an undercut of the support element is preferably formed in the axial direction. In particular, movement of the sealing element relative to the support element in and / or against the axial direction is inhibited and / or blocked.

[0102] In the area of ​​one or more radial protrusions, the sealing element preferably has a thickness in the radial direction with respect to the longitudinal center axis of the movable component that is approximately 10% or more, in particular approximately 20% or more, greater than the average thickness of the sealing element in adjacent areas.

[0103] In particular, the thickness of the sealing element in the area of ​​one or more radial protrusions is approximately 60% or less, and especially approximately 40% or less, greater in the radial direction with respect to the longitudinal center axis of the moving component than the average thickness of the sealing element in adjacent areas.

[0104] In the area of ​​one or more radial recesses, the support element preferably has a thickness in the radial direction with respect to the longitudinal center axis of the movable component that is approximately 60% or less, in particular approximately 40% or less, smaller than the average thickness of the support element in adjacent areas.

[0105] In particular, the support element in the area of ​​one or more radial recesses has a thickness that is approximately 10% or more, and especially approximately 20% or more, less than the average thickness in adjacent areas in the radial direction with respect to the longitudinal center axis of the movable component.

[0106] It can be advantageous if one or more radial depressions are half-bores.

[0107] It can be advantageous if one or more radial depressions have a round or non-round shape in the radial direction with respect to the longitudinal center axis of the moving component, for example a triangular shape, a cloud shape, an oval shape and / or a rectangular shape.

[0108] In addition to or as an alternative to the embodiments described above, the sealing element may have one or more radial recesses and the support element may have one or more radial protrusions. The descriptions relating to radial recesses and radial protrusions in reverse apply equally to these embodiments.

[0109] It can be advantageous if a contact surface of the support element, located radially inside the longitudinal center axis of the moving component, has a surface texture and / or is laser-textured. This allows for improved surface quality.

[0110] Additionally or alternatively, a contact surface of the support element located radially outside the longitudinal center axis of the movable component has a surface structure and / or is laser-structured.

[0111] It may be provided that areas of the radially inner contact surface and / or areas of the radially outer contact surface of the support element have a surface texture and / or are laser-textured. Alternatively, the radially inner contact surface of the support element and / or the radially outer contact surface of the support element are completely provided with a surface texture and / or are laser-textured.

[0112] Additionally or alternatively, it may be provided that the transverse section of the support element, in particular on a side facing the second receiving space, has a surface structuring in some areas or completely and / or is laser-structured.

[0113] Surface structuring and / or laser structuring provides, in particular, an increased surface area of ​​the carrier element, which preferably improves the adhesion of the sealing element to the carrier element. This makes it more difficult or essentially prevents the penetration of the first or second medium into the area between the carrier element and the sealing element.

[0114] It can be advantageous if the support element has a surface structure created by laser structuring on its transverse section on a side facing the second receiving space.

[0115] The surface structuring preferably comprises regularly arranged, in particular ring-shaped, structures. The structures are preferably covered and / or filled by the sealing element.

[0116] It can be advantageous if the regularly arranged structures include several, in particular coaxially arranged, recesses or are designed as such. The recesses are preferably completely filled by the material of the sealing element.

[0117] Preferably, during the injection molding process for manufacturing the sealing arrangement, the material of the sealing element penetrates the structures, for example recesses, of the surface structuring and / or fills the surface structuring.

[0118] In the case of multiple depressions created by means of laser structuring, it can be advantageous for optimized adhesion of the sealing element if the distance between two adjacent depressions corresponds at least approximately once to twice their depth perpendicular to the respective surface of the support element.

[0119] The depressions created by means of laser structuring are preferably radial depressions and / or axial depressions in the support element.

[0120] The sealing element may be pre-tensioned radially with respect to the longitudinal center axis of the movable component by means of one or more spring elements. The one or more spring elements are clamped, in particular, between one or more sealing lip sections of the sealing element and the base body of the sealing element. Additionally or alternatively, one or more spring elements are clamped between one or more sealing lip sections of the sealing element and a radially inner contact surface of the support element.

[0121] Preferably, one or more spring elements of the sealing arrangement have at least one retaining element, particularly a hook-shaped one, on a side facing away from the moving component when assembled. The at least one retaining element, particularly a hook-shaped one, engages in at least one retaining projection in the sealing element or the support element.

[0122] The at least one retaining element preferably forms a spring support.

[0123] In particular, the at least one retaining element, especially a hook-shaped one, engages behind the at least one retaining projection in the sealing element or the support element.

[0124] As an alternative to fastening the at least one retaining element in at least one retaining projection, the at least one retaining element can also be supported on a side surface of the sealing element and / or be partially embedded in the base body of the sealing element.

[0125] For example, at least one retaining element is a spring-loaded retaining lug.

[0126] The at least one retaining element and / or the at least one retaining projection ensures, in particular, that the axial position of the respective spring element is protected against displacement along the axial direction with respect to the longitudinal center axis of the movable component.

[0127] As an alternative to a retaining element in one or more spring elements, it can be provided that free ends of one or more spring elements engage behind one or more retaining projections in the base body of the sealing element or the support element in an axial direction with respect to the longitudinal center axis of the movable component and / or are held by these in an axial direction.

[0128] It can be advantageous if the sealing element is positively connected and / or force-fit and / or materially bonded to the support element in the axial direction and in at least one radial direction with respect to the longitudinal center axis of the moving component.

[0129] It can be advantageous if the sealing element comprises a sealing lip section and a further sealing lip section, which are arranged radially inside the longitudinal center axis of the moving component and each comprise one or more, in particular dynamic, sealing lips. The sealing lip sections are preferably dynamic sections.

[0130] The present invention further relates to the use of a sealing arrangement according to the invention as a rod seal, piston seal and / or shaft seal, in particular in a fuel pump and / or piston pump.

[0131] Furthermore, the present invention relates to a high-pressure pump comprising at least one sealing arrangement according to the invention.

[0132] The present invention further relates to a method for manufacturing a sealing arrangement according to the invention for sealing between two receiving spaces for receiving two media in the area of ​​a movable component which is displaceable along a longitudinal central axis of the movable component and / or rotatable about the longitudinal central axis, in particular for manufacturing a sealing arrangement according to the invention.

[0133] The process involves fixing the ring-shaped sealing element to the carrier element using an injection molding process.

[0134] The features and / or advantages described in connection with the sealing arrangement according to the invention preferably apply equally to the method according to the invention.

[0135] It can be advantageous to structure a radially inner contact surface of the support element with a laser before the sealing element is fixed, in particular injection-molded.

[0136] Additionally or alternatively, it may be provided that a contact surface of the support element located radially outside the longitudinal center axis of the moving component is structured with a laser before the sealing element is fixed, in particular injection molded.

[0137] For example, the surface of the radially inner contact surface and / or the radially outer contact surface is treated with a laser, in particular by means of laser interference structuring, in such a way that a rippling of the surface is created.

[0138] The surface is locally melted, for example, to create the desired surface structure.

[0139] The ribbing can include bumps and / or net structures on the surface.

[0140] Surface structuring is preferably designed as a regular surface structuring, for example ring-shaped depressions.

[0141] Alternatively, the surface structuring can also be done in an irregular structure.

[0142] Further preferred features and / or advantages of the invention are the subject of the following description and the graphic representation of exemplary embodiments.

[0143] The drawings show: Fig. 1 a schematic longitudinal section through a first embodiment of a sealing arrangement for sealing between a movable component and a sealing receptacle of a housing; Fig. 2 a detail of a schematic longitudinal section through a second embodiment of a sealing arrangement in which a sealing element is injection-molded onto a support element of the sealing arrangement such that the support element is enclosed at its end face by the sealing element; Fig. 3 one of the Fig. 2 A corresponding schematic representation of a third embodiment of a sealing arrangement, in which radial openings are provided in the support element through which the sealing element extends; Fig. 4 one of the Fig. 2 Fig. 5 shows a schematic representation of a fourth embodiment of a sealing arrangement, in which two radial recesses are provided in a radially outer contact surface of the support element, against which two radial projections of the sealing element abut; Fig. 5 shows a schematic longitudinal section through a fifth embodiment of a sealing arrangement, in which the sealing element has a collar section with a sealing lip, wherein the collar section abuts and / or surrounds the support element in a transition area from a sealing element receiving section to a transverse section of the support element; and Fig. 6 shows one of the Fig. 2 A corresponding representation of a sixth embodiment of a sealing arrangement, in which the support element has sections in a cross-section that are surrounded on four sides by the sealing element.

[0144] Identical or functionally equivalent elements are designated with the same reference symbols in all figures.

[0145] One in Fig. 1 The illustrated sealing arrangement for a high-pressure pump, designated as a whole by 100, preferably serves to seal between a first receiving chamber 102, which is filled with a liquid, for example with engine oil, and a second receiving chamber 104, which is filled with another liquid, for example fuel, in particular gasoline.

[0146] The sealing arrangement 100 comprises a support element 106 with a central, essentially hollow cylindrical sealing element receiving section 108 and an outer section 110 surrounding the sealing element receiving section 108 in a ring shape.

[0147] Furthermore, the support element 106 comprises, in particular, an edge section 112, which adjoins the outer section 110 on a side of the outer section 110 facing away from the sealing element receiving section 108 and / or surrounds the outer section 110 in a ring-like manner. The edge section 112 is, for example, convexly curved outwards in the radial direction 134 with respect to a longitudinal center axis 116 of a movable component 118.

[0148] The movable component 118 is preferably cylindrical and / or is preferably arranged in a mounted state of the sealing arrangement 100 in a movable manner relative to the sealing arrangement 100.

[0149] For example, the movable component 118 is a rod and / or a piston and / or a shaft of the high-pressure pump or forms a part thereof.

[0150] The sealing arrangement 100 can be used, in particular, such that a sleeve (not shown) is pressed into the outer section 110 of the support element 106. An end wall of the sleeve then preferably, together with the sealing element receiving section 108, defines a sealing chamber 120 in which an annular sealing element 122 is arranged.

[0151] The sealing element 122 is located in a radially inner area, preferably against a lateral surface of the movable component 118.

[0152] The sealing element receiving section 108 and the outer section 110 are preferably connected to each other via a transverse section 124 of the support element 106.

[0153] The transverse section 124 preferably has a main extension plane which is arranged transversely, in particular perpendicularly, to the longitudinal center axis 116 of the movable component 118.

[0154] The support element 106 is preferably formed in one piece.

[0155] The support element 106 is in particular a metal component, for example a deep-drawn metal component.

[0156] It may be provided that the support element 106 includes one or more openings and / or one or more notches.

[0157] The following elements of the support element are preferably arranged one behind the other along an axial direction 114 with respect to the longitudinal center axis 116 of the movable component 118: the edge section 112; and / or the outer section 110; and / or the transverse section 124; and / or the sealing element receiving section 108.

[0158] As an alternative to a one-piece design of the support element 106, it can be provided that one or more of the following elements are manufactured as separate components and are connected to the other elements of the support element 106 by material bonding and / or form-fitting and / or force-fitting: the sealing element receiving section 108, the transverse section 124, the outer section 110, the edge section 112.

[0159] All references to the longitudinal center axis 116 of the movable component 118 preferably also apply to a longitudinal center axis of the sealing arrangement 100 and / or a symmetry axis of the sealing arrangement 100 and / or a central axis of the sealing arrangement 100 and / or a central axis of the sealing arrangement 100.

[0160] In the present case, the transverse section 124 has an axial depression in the form of an axial recess 126 with respect to the radial direction 134.

[0161] Preferably, the axial setback 126 is formed as a bulge in the radial direction 134, for example in a ring shape extending in the circumferential direction 115.

[0162] The circumferential direction 115 is preferably a circumferential direction 115 of the movable component 118 and / or the sealing arrangement 100 and / or the support element 106.

[0163] It may be provided that the sealing element 122 is injected into the axial recess 126 of the support element 106 and / or is injected into it.

[0164] In this way, the sealing element 122 preferably has an axial projection in the form of an axial projection 128, for example, annular in shape. The axial projection 128 is preferably annular in shape along the circumferential direction 115 and / or extends annularly around a base body 130 of the sealing element 122.

[0165] It may be provided that the axial projection 128 has an at least approximately hollow cylindrical shape.

[0166] Due to the engagement of the axial projection 128 with the axial recess 126, the sealing element 122 and the support element 106 are preferably locked relative to each other. Preferably, displacement of the sealing element 122 along the axial direction 114 relative to the support element 106 is inhibited and / or blocked.

[0167] In particular, the axial projection 128 is inserted into the axial recess 126. The axial projection 128 being pushed out of the axial recess 126 is, for example, substantially inhibited and / or blocked by the sealing element 106 covering an axial end section 146 of the support element 106 at its end face.

[0168] The axial projection 128 on the one hand and the axial recess 126 on the other preferably inhibits and / or blocks movement of the sealing element 122 relative to the support element 106 in the radial direction 134.

[0169] The sealing element 122 is in this case fixed to the carrier element 106 in an injection molding process.

[0170] It can be advantageous if the sealing element 122 is injection-molded onto the carrier element 106.

[0171] It may be advantageous if the sealing element 122 comprises a thermoplastic polymer material, in particular a thermoplastic fluoropolymer material, or is formed from a thermoplastic polymer material, in particular a thermoplastic fluoropolymer material.

[0172] Preferably, the thermoplastic polymer material is a melt-processable polymer material.

[0173] It may be provided that the sealing element 122, in particular the base body 130 of the sealing element 122, is made of a PTFE material or of a PTFE compound material.

[0174] The polymer material used is preferably a TFE copolymer with a comonomer content of more than 0.5 wt.%.

[0175] The comonomer is preferably selected from a perfluoroalkyl vinyl ether, in particular perfluoromethyl vinyl ether, hexafluoropropylene, and perfluoro-(2,2-dimethyl-1,3-dioxole). Depending on the comonomer content, the fully fluorinated thermoplastic is then a so-called melt-processable PTFE (comonomer content up to about 3 wt.%), a PFA (more than about 3 wt.% perfluoroalkyl vinyl ether as a comonomer), an MFA (more than about 3 wt.% perfluoromethyl vinyl ether as a comonomer), or an FEP (more than about 3 wt.% hexafluoropropylene as a comonomer).

[0176] The TFE copolymer can also comprise various comonomers. Likewise, it is possible that the fully fluorinated thermoplastic polymer material comprises a mixture of different TFE copolymers.

[0177] The material of the sealing element 122, in particular of the base body 130, can be formed partially or substantially entirely from the fully fluorinated thermoplastic polymer material.

[0178] Alternatively or additionally, the material can include one or more fillers, in particular pigments, friction-reducing additives and / or thermal resistance-enhancing additives, to further optimize the properties of the sealing element and adapt them to the respective requirements.

[0179] Furthermore, the thermoplastic polymer material may in particular be a high-temperature-resistant and / or chemically resistant thermoplastic material, especially PEEK, PEAK, PEI, etc., and / or a compound material comprising one or more of the aforementioned materials.

[0180] The sealing element 122 is and / or is preferably injected into a cavity formed by the substantially hollow cylindrical support element 106.

[0181] The sealing element 122 preferably comprises the base body 130 and several sealing lip sections 132. The sealing lip sections 132, in this case two sealing lip sections 132, are preferably arranged radially inward relative to the base body 130 with respect to the radial direction 134.

[0182] It can be advantageous if the two sealing lip sections 132 extend from both sides of a connecting section 136 in the axial direction 114.

[0183] The base body 130 of the sealing element 122 and the sealing lip section 132 are connected to each other via the connecting section 136 of the sealing element 122. The sealing element 122 abuts the movable component 118, particularly in the radial direction 134 inwards, by means of the sealing lip section 132.

[0184] The sealing lip sections 132 preferably serve as a dynamic seal between the sealing element 122 and the movable component 118 which moves relative to the sealing element 122, in particular which is displaceable along the radial direction 134.

[0185] It can be advantageous if the sealing lip sections 132 form dynamic sections which are movable relative to the base body 130 when the movable component 118 moves. The base body 130 preferably forms a static section of the sealing element 122.

[0186] The sealing lip sections 132 preferably each have a sealing lip 138 at their axial ends, which serves to provide a seal, in particular a fluid-tight seal, and / or contact with the movable component 118. The sealing lips 138 are preferably annular and / or rotationally symmetrical with respect to an axis of symmetry of the sealing arrangement 100.

[0187] To achieve an increased sealing effect, one or more spring elements 140 of the sealing element 122 can be provided.

[0188] The one or more spring elements 140 are preferably arranged or positioned in one or more spring element receptacles 142 of the sealing element 122.

[0189] By means of one or more spring elements 140, the sealing lip sections 132 can in particular be pressed against the movable component 118.

[0190] At least two spring elements 140 are provided in this document. Alternatively, the sealing arrangement 100 can also be designed without spring elements 140.

[0191] The spring elements 140 preferably have a cross-section that is at least approximately U-shaped perpendicular to the circumferential direction 115, wherein a stress in the radial direction 134 can be generated and / or is generated by means of free ends of the spring elements 140.

[0192] The spring elements 140 preferably increase the contact pressure of the sealing element 122, in particular the sealing lip sections 132, against the movable component 118.

[0193] For improved fixation of the sealing element 122 to the carrier element 106, it may be advantageous if the sealing element 122 is and / or is injection-molded onto a radially internal contact surface 144 of the carrier element 106.

[0194] The radially inner contact surface 144 is in particular a radially inner surface of the hollow cylindrical sealing element receiving section 108.

[0195] It can be advantageous if an axial end section 146 of the support element 106 is covered by the sealing element 122. For example, the sealing element 122 extends over the axial end section 146 of the support element 106 and / or surrounds the end face of the support element 106.

[0196] Preferably, an axial end section 148 of the sealing arrangement 100 is formed by the sealing element 122 with respect to the radial direction 114. By injection molding the sealing element 122 onto and / or into the carrier element 106, the sealing arrangement 100 can preferably be provided in such a way that the sealing arrangement 100 as a whole is ready for assembly.

[0197] The sealing arrangement 100 can therefore be attached to a housing of the high-pressure pump and fixed in the housing, particularly in one work step.

[0198] To improve the connection between the sealing element 122 and the support element 106, in particular the radially inner contact surface 144 of the support element 106, it may be advantageous to apply a surface treatment, in particular a surface structuring, to the support element 106 before applying and / or attaching the sealing element 122.

[0199] Preferably, a surface, for example the radially inner contact surface 144, of the support element 106 is completely or partially laser-structured.

[0200] Preferably, a ribbing, in particular a periodic ribbing, is formed on the surface of the support element 106.

[0201] This can improve the adhesion of the sealing element 122 to the support element 106.

[0202] Additionally or alternatively, it can be provided that a surface of the transverse section 124 facing the second recording space 104 is and / or becomes laser-structured. This surface is particularly easily accessible for processing with a laser.

[0203] Laser structuring of the transverse section 124 can make it more difficult or prevent the backflow of a liquid.

[0204] A surface structuring that has regularly arranged structures is particularly advantageous.

[0205] For example, the transverse section 124 has several annular, in particular coaxially arranged, recesses which are and / or are produced by means of laser structuring. The annular shape of the recesses is preferably closed.

[0206] It can be advantageous if the depressions have an average depth of approximately 100 µm to approximately 500 µm, particularly approximately 100 µm to approximately 300 µm. The depth is preferably defined perpendicular to a respective surface of the transverse section 124.

[0207] It can be advantageous if the average width of the depressions is in the range of approximately 100 µm to approximately 500 µm. The width is preferably defined parallel to a respective surface of the transverse section 124.

[0208] Preferably, the distance between two adjacent depressions corresponds at least approximately to once or twice their depth.

[0209] The material of the sealing element 122 preferably penetrates and / or covers the structures, in particular those created by laser structuring, during the injection molding process to fix the sealing element 122 to the carrier element 106.

[0210] It can be advantageous if the sealing element 122 covers and / or fills the structures.

[0211] It can be advantageous if the sealing element 122 is fixed to the carrier element 106 after surface treatment using an injection molding process.

[0212] One in Fig. 2 The second embodiment of a sealing arrangement 100 shown differs essentially in terms of structure and function from the one shown in Fig. 1 In the first embodiment shown, the spring elements 140 each have a retaining element 150 which is located on an outside of the spring elements 140 with respect to the axial direction 134 and which engages and / or engages in and / or on the base body 130 of the sealing element 122.

[0213] The retaining element 150 preferably serves to secure the respective spring element 140 in the spring element receptacle 142. It can be provided that the retaining element 150 rests against a radially inner surface of the base body 130 of the sealing element 122 and is pressed against it and / or is pressed against it.

[0214] Alternatively, the retaining element 150 can be provided for to engage in and / or be embedded in the base body 130. Embedding can already take place during the manufacturing of the sealing element 122.

[0215] It may be provided that one or more spring elements 140 have several retaining elements 150 which are arranged on legs of the respective spring element 140 (not shown).

[0216] The spring elements 140, which have retaining elements 150, can alternatively be arranged in the second embodiment shown in the following: Fig. 1 The first embodiment of the sealing arrangement shown or in further embodiments of sealing arrangements 100 described below may be used.

[0217] In the present case ( Fig. 2 ) no axial projection 128 is provided in the sealing element 122 and / or no axial recess 126 is provided in the support element 106.

[0218] In this case, the sealing element 122 rests exclusively on the sealing element receiving section 108 and / or not on the transverse section 124 of the support element 106.

[0219] The sealing element 122 is preferably fixed relative to the support element 106 by an end-face overlap of the axial end section 146 of the support element 106 by the sealing element 122.

[0220] It can be advantageous if the support element 106 has an inwardly directed edge 152 with respect to the axial direction 114 in the region of the axial end section 146. The sealing element 122 is preferably injection-molded around this edge 152 during the manufacture of the sealing arrangement 100.

[0221] Preferably, the sealing lip sections 132 each have two sealing lips 138, with two further sealing lips 138 arranged between the sealing lips 138 located at the axial ends of the sealing lip sections 132. The further sealing lips 138 can further increase the dynamic seal between the sealing element 122 and the movable component 118.

[0222] The transverse section 124 is essentially flat in this case.

[0223] Moreover, the in Fig. 2 The second embodiment of a sealing arrangement 100 shown is essentially the same in terms of structure and function as that shown in Fig. 1 the first embodiment of a sealing arrangement 100 shown is identical, so reference is made to its description in this respect.

[0224] One in Fig. 3 The third embodiment of a sealing arrangement 100 shown differs essentially in terms of structure and function from the one shown in Fig. 2 In the second embodiment of a sealing arrangement 100, shown, one or more radial openings 154 are provided in the support element 106, in particular in the sealing element receiving section 108. The volumes formed by the radial openings are, in this case, in particular completely filled by the sealing element 122.

[0225] For example, the sealing element 122 is injected through one or more radial openings 154 of the carrier element 106.

[0226] It can be advantageous if several radial openings 154 are arranged, for example, regularly, in the circumferential direction 115. The one or more radial openings 154 are, for example, one or more bores 155.

[0227] It may be provided that one or more radial openings 154 are punched out of the sealing element receiving section 108 and / or will be punched out.

[0228] In particular, the sealing element 122 extends on a radially outer contact surface 156 of the support element 106, which is arranged at least approximately parallel to the radially inner contact surface 144 of the support element 106.

[0229] It can be advantageous if the radially outer contact surface 156 of the support element 106 is laser-structured.

[0230] The support element 106 preferably has areas in which it is surrounded on three sides by the sealing element 122 in a cross-section taken perpendicular to the circumferential direction 115.

[0231] It can be advantageous if the sealing element 122 extends completely around the radially inner contact surface 144 and / or the radially outer contact surface 156 of the support element 106 with respect to the circumferential direction 115.

[0232] The one or more radial openings 154 of the support element 106 preferably have a round or a non-round shape.

[0233] Preferred examples of non-round shapes are a triangle shape, a rectangular shape, for example a square shape, a cloud shape, an oval shape.

[0234] Oblong openings are particularly preferred.

[0235] As an alternative to a uniform shape for the radial openings 154, several radial openings 154 with different shapes can also be provided in the support element 106.

[0236] A force-fit and / or form-fit connection is preferably formed between the sealing element 122 and the support element 106 in the axial direction 114 by means of the one or more radial openings 154 and the sealing element 122 extending through the one or more radial openings. An end-face cover of the axial end section 146 of the support element 106 is preferably unnecessary.

[0237] Because the sealing element 122 extends over the radially outer contact surface 156 of the support element 106 and the radially inner contact surface 144 of the support element 106, a positive locking and / or force locking connection is preferably formed between the support element 106 and the sealing element 122 in the radial direction 134.

[0238] The axial end section 148 of the sealing arrangement 100 is formed in this case by the support element 106.

[0239] Moreover, the in Fig. 3 The third embodiment of a sealing arrangement shown is essentially identical in structure and function to the one shown in Fig. 2 the second embodiment of a sealing arrangement 100 shown is identical, so reference is made to its description in this respect.

[0240] One in Fig. 4 The fourth embodiment of a sealing arrangement 100 shown differs essentially in terms of structure and function from the one shown in Fig. 3 In the third embodiment of a sealing arrangement 100 shown, the support element 106 has two radial recesses 160 in the area of ​​the radially outer contact surface 156, on / in which two radial projections 162 of the sealing element 122 bear and / or engage.

[0241] Preferably the radial recesses 160 are designed as, for example, ring-shaped grooves 164 extending along the circumferential direction 115.

[0242] The radial depressions 160 have an elongated shape and / or their main direction of extension is concentric with the circumferential direction 115.

[0243] As an alternative to radial recesses 160 that are closed in a ring shape, the radial recesses 160 can also have interruptions, for example in the circumferential direction 115.

[0244] The radial projections 162 of the sealing element 122 are preferably, for example, annular, material thickenings 166 which extend in the circumferential direction 115. For example, the radial projections 162 extend completely around an outer circumference of the sealing element receiving section 108 of the support element 106.

[0245] In the area of ​​the radial recesses 160, the support element 106 preferably has a thickness in the radial direction 134 that is approximately 60% or less, in particular approximately 40% or less, smaller than the average thickness of the support element 106 in adjacent areas.

[0246] In particular, the support element 106 in the area of ​​the radial recesses 160 in the radial direction 134 has a thickness that is approximately 10% or more, and in particular approximately 20% or more, lower than the average thickness in adjacent areas.

[0247] In the area of ​​the radial protrusions 162, the sealing element 122 preferably has a thickness approximately 10% or more, in particular approximately 20% or more, greater along the radial direction 134 than the average thickness of the sealing element 122 in adjacent areas.

[0248] In particular, the thickness of the sealing element 122 in the area of ​​the radial protrusions 162 in radial direction 134 is approximately 60% or less, and in particular approximately 40% or less, greater than the average thickness of the sealing element 122 in adjacent areas.

[0249] It is also possible to have only one radial elevation 162 and one radial depression 160.

[0250] In this case, the sealing element 122 does not extend to radially inner contact surfaces 144 of the support element 106. This allows material to be saved.

[0251] Retaining elements 150 of the spring elements 140 preferably engage on radially internal retaining projections 168 of the support element 106.

[0252] Each retaining projection 168 is arranged, in particular in the axial direction 114, at a height with a radial recess 160 of the support element 106.

[0253] For example, the retaining elements 150 of the spring elements 140 each engage a retaining projection 168 of the support element 106. It can be advantageous if the retaining projection 168 of the support element 106 is designed as a radially inwardly extending, for example ring-shaped, thickening and / or protrusion.

[0254] Additionally or alternatively, it may be provided that one or more retaining projections 168 are formed at the axial ends of the sealing lip sections 132, which extend outwards in the direction of the support element 106 (schematically indicated).

[0255] The spring elements 140 are in this case clamped and / or held under tension between a sealing lip section 132 and the support element 106.

[0256] Moreover, the in Fig. 4 The fourth embodiment of a sealing arrangement 100, as illustrated, is essentially the same in terms of structure and function as that shown in Fig. 3 the third embodiment of a sealing arrangement 100 shown, so that reference is made to its description in this respect.

[0257] One in Fig. 5 The fifth embodiment of a sealing arrangement 100 shown differs essentially in terms of structure and function from the one shown in Fig. 3 In the third embodiment of a sealing arrangement 100 shown, the sealing element 122 has a collar section 170 which connects to the base body 130 of the sealing element 122 at an end of the sealing element 122 that is away from the axial end section 146 of the support element 106.

[0258] The collar section 170 preferably encompasses a transition section between the sealing element receiving section 108 and the transverse section 124 of the support element 106.

[0259] At an end facing away from the axial end section 146 of the support element 106, the collar section 170 preferably has a sealing lip 138, which in particular serves to seal the second receiving chamber 104.

[0260] The sealing lip 138 of the collar section 170 is preferably annular in shape. Preferably, the sealing lip 138 of the collar section 170 forms a static sealing lip, which serves as a static seal.

[0261] It can be provided that the sealing lip 138 of the collar section 170 is pre-tensioned by means of a spring device 175, for example a coil spring, a type of disc spring, or a bellows spring (schematically indicated). The sealing lip 138 of the collar section 170 is and / or is preferably pressed against the support element 106 by means of the spring device 175.

[0262] The spring device 175 is preferably held under tension and / or compressed between a flank of the movable component 118 and an inner side of the transverse section 124 of the support element 106.

[0263] The collar section 170 preferably widens in the opposite direction to the axial direction 114.

[0264] It can be advantageous if the collar section 170 has one or more stress relief grooves 171, which are arranged, for example, regularly along the circumferential direction 115 (schematically indicated). The one or more stress relief grooves 171 preferably compensate for stresses in the circumferential direction 115.

[0265] The transverse section 124 may have an axial recess 172, for example, in an annular form. In the area of ​​the axial recess 172, which is for example designed as a groove, the transverse section 124 preferably has a locally reduced thickness in the axial direction 114 compared to adjacent areas.

[0266] In the area of ​​the axial recess 172, the thickness of the support element 106 is preferably about 10% or more, in particular about 20% or more, less than the average thickness of the support element 106 in adjacent areas.

[0267] In the area of ​​the axial recess 172, the thickness of the support element 106 is preferably about 60% or less, for example about 40% or less, less than the average thickness of the support element 106 in adjacent areas.

[0268] It can be advantageous if the sealing element 122 engages in the axial recess 172 of the carrier element 106 and / or is injected and / or is injected.

[0269] For this purpose, the sealing element 122, for example the collar section 170, has an axial projection 174 which engages in and / or rests against the axial recess 172. The axial projection 174 extends behind the support element 106, particularly in the radial direction 134.

[0270] The sealing element 122 preferably has a locally increased thickness in the area of ​​the axial protrusion 174 compared to an average thickness of the sealing element 122.

[0271] In the area of ​​the axial protrusion 174, the thickness of the sealing element 122 is preferably approximately 10% or more, in particular approximately 20% or more, greater than the average thickness of the sealing element 122 in adjacent areas.

[0272] The thickness of the sealing element 122 in the area of ​​the axial protrusion 174 is preferably about 60% or less, in particular about 40% or less, greater than the average thickness of the sealing element 122 in adjacent areas.

[0273] Preferably, the axial elevation 174 is designed as, for example, annular material thickening in the sealing element 122.

[0274] The spring elements 140 according to the fifth embodiment of the sealing arrangement 100 are designed without retaining elements 150 in this case. Alternatively, the spring elements 140 can also have retaining elements 150, for example as in connection with the Fig. 4 described.

[0275] The axial recess 172 and the axial protrusion 174 together preferably form a positive locking and / or force locking connection between the sealing element 122 and the support element 106 in the radial direction 134 and / or axial direction 114.

[0276] The support element 106 does not have an angled edge 152 in this case.

[0277] Moreover, the in Fig. 5 The fifth embodiment of a sealing arrangement 100 shown is essentially the same in terms of structure and function as that shown in Fig. 3 the third embodiment of a sealing arrangement 100 shown, so that reference is made to its description in this respect.

[0278] One in Fig. 6 The sixth embodiment of a sealing arrangement 100 shown differs essentially in terms of structure and function from the one shown in Fig. 5 In the fifth embodiment of a sealing arrangement 100 shown, the axial end section 146 of the support element 106 is enclosed by the sealing element 122.

[0279] It can be advantageous if the support element 106 in the area facing the axial end section 148 of the sealing arrangement 100 is partially enclosed on all four sides and / or completely enclosed by the sealing element 122 in a cross-section taken perpendicular to the circumferential direction 115.

[0280] The sealing element 122 is preferably completely injection-molded around the support element 106 in the area of ​​the radial openings 154.

[0281] In the Fig. 6 In the sixth embodiment shown, no relief grooves 171 are provided in the sealing lip 138 of the collar element 170.

[0282] Moreover, the in Fig. 6 The sixth embodiment of a sealing arrangement 100 shown is essentially identical in structure and function to that shown in Fig. 5 the fifth embodiment of a sealing arrangement 100 shown is identical, so reference is made to its description in this respect.

[0283] By injection molding the sealing element 122 onto the carrier element 106, a positive fit and / or force fit can preferably be formed in the radial direction 134 as well as in the axial direction 114.

[0284] By overmolding the carrier element 106 with the sealing element 122, a labyrinth-like connection between the carrier element 106 and the sealing element 122 is formed.

Claims

1. Sealing arrangement (100) for sealing between two receiving spaces (102, 104) for receiving two media in the region of a movable component (118), which movable component is displaceable along a longitudinal central axis (116) of the movable component (118) and / or rotatable about the longitudinal central axis (116), the sealing arrangement (100) comprising the following: - a carrier element (106); and - an annular sealing element (122) which is arranged on the carrier element (106) and in the fitted state, for sealing purposes, abuts against the movable component (118), wherein the sealing element (122) is fixed to the carrier element (106) in an injection-moulding process, characterized in that a hollow-cylindrical sealing-element-receiving section (108) of the carrier element (106) has one or more radial openings (154) which are filled by the sealing element (122).

2. Sealing arrangement (100) according to Claim 1, characterized a) in that the sealing element (122) surrounds an axial end section (146) of the carrier element (106) in an axial direction (114), which axial end section is directed towards a first receiving space (102) of the two receiving spaces (102, 104); and / or b) in that the sealing element (122) surrounds a radially outer abutment surface (156) and / or a radially inner abutment surface (144) of the carrier element (106), in particular is moulded onto them / it.

3. Sealing arrangement (100) according to either of Claims 1 and 2, characterized in that the sealing element (122) is moulded through the one or more radial openings (154).

4. Sealing arrangement (100) according to one of Claims 1 to 3, characterized a) in that the carrier element (106) has the one or more radial openings (154), wherein the one or more radial openings (154) are bores (155); and / or b) in that the carrier element (106) has the one or more radial openings (154), these having a round shape or a non-round shape, in particular an oval shape, a triangular shape, a cloud shape and / or a rectangular shape; and / or c) in that the carrier element (106) has the one or more radial openings (154), wherein the carrier element (106), in an axial direction (114) in relation to the longitudinal central axis (116) of the movable component (118), is surrounded by the sealing element (122) substantially on four sides between the one or more radial openings (154) and an axial end section (148); and / or d) in that the carrier element (106) comprises a transverse section (124) whose main extent plane is oriented substantially transversely, in particular perpendicularly, to the longitudinal central axis (116) of the movable component (118), wherein the transverse section (124) has one or more axial depressions (172) in which the transverse section (124) has a locally reduced thickness and / or an axially recessed portion in the axial direction (114) in relation to the longitudinal central axis (116) of the movable component (118), and / or in that the sealing element (122) has one or more axial elevations (174) in which the sealing element (122) has a locally increased thickness and / or an axial projection (128) in the axial direction (114) in relation to the longitudinal central axis (116) of the movable component (118), wherein the one or more axial elevations (174), in particular, are received in the one or more axial depressions (172) and / or engage into the latter.

5. Sealing arrangement (100) according to one of Claims 1 to 4, characterized in that the sealing element (122), on a side directed towards a second receiving space (104), has a collar section (170) which adjoins a main body (130) of the sealing element (122) and which has a sealing lip (138) at one end, wherein in particular the sealing lip (138) is interrupted by one or more relief grooves (171) in a circumferential direction (115).

6. Sealing arrangement (100) according to one of Claims 1 to 5, characterized in that the carrier element (106) has one or more radial depressions (160), in particular one or more, in particular annular, grooves (164), against which one or more, in particular complementarily formed, radial elevations (162) of the sealing element (122) abut and / or engage.

7. Sealing arrangement (100) according to one of Claims 1 to 6, characterized in that a radially inner abutment surface (144) of the carrier element (106) in relation to the longitudinal central axis (116) of the movable component (118) and / or a radially outer abutment surface (156) of the carrier element (106) in relation to the longitudinal central axis (116) of the movable component (118) have / has a surface structuring and / or are / is laser-structured.

8. Sealing arrangement (100) according to one of Claims 1 to 7, characterized in that the carrier element (106), on its transverse section (124), has on a side directed towards a second receiving space (104) a surface structuring generated by means of laser structuring, wherein the surface structuring comprises in particular regularly arranged, in particular annular, structures which are covered and / or filled by the sealing element (122).

9. Sealing arrangement (100) according to one of Claims 1 to 8, characterized in that the sealing element (122) is preloadable in a radial direction (134) in relation to the longitudinal central axis (116) of the movable component (118) by means of one or more spring elements (140), wherein the one or more spring elements (140) are clamped between one or more sealing-lip sections (132) and a main body (130) of the sealing element (122) or a radially inner abutment surface (144) of the carrier element (106).

10. Sealing arrangement (100) according to one of Claims 1 to 9, characterized in that one or more spring elements (140) of the sealing arrangement (100), on a side directed away from the movable component (118) in the fitted state, have at least one, in particular hook-shaped, holding element (150) which engages into at least one holding projection (168) in the sealing element (122) or carrier element (106) and / or which engages behind the at least one holding projection (168).

11. Sealing arrangement (100) according to one of Claims 1 to 10, characterized in that the sealing element (122) is connected in a form-fitting and / or force-fitting and / or materially bonded manner to the carrier element (106) in the axial direction (114) and in at least one radial direction (134) in relation to the longitudinal central axis (116) of the movable component (118).

12. Use of a sealing arrangement (100) according to one of Claims 1 to 11 as a rod seal, piston seal and / or shaft seal, in particular in a fuel pump and / or a piston pump.

13. High-pressure pump comprising at least one sealing arrangement (100) according to one of Claims 1 to 11.

14. Method for producing a sealing arrangement (100) according to one of Claims 1 to 11, wherein the method comprises the following: - fixing the annular sealing element (122) to the carrier element (106) in an injection-moulding process.

15. Method according to Claim 14, characterized in that a radially inner abutment surface (144) of the carrier element (106) in relation to the longitudinal central axis (116) of the movable component (118) and / or a radially outer abutment surface (156) of the carrier element (106) in relation to the longitudinal central axis (116) of the movable component (118) are / is structured using a laser before the sealing element (122) is fixed, in particular moulded on.