WO2017174325A1 - Élément de protection comprenant un dispositif de fixation permettant de fixer l'élément de protection sur un élément récepteur correspondant - Google Patents

Élément de protection comprenant un dispositif de fixation permettant de fixer l'élément de protection sur un élément récepteur correspondant Download PDF

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Publication number
WO2017174325A1
WO2017174325A1 PCT/EP2017/056277 EP2017056277W WO2017174325A1 WO 2017174325 A1 WO2017174325 A1 WO 2017174325A1 EP 2017056277 W EP2017056277 W EP 2017056277W WO 2017174325 A1 WO2017174325 A1 WO 2017174325A1
Authority
WO
WIPO (PCT)
Prior art keywords
shielding
shielding part
damping element
sleeve
sleeve body
Prior art date
Application number
PCT/EP2017/056277
Other languages
German (de)
English (en)
Inventor
Gerald Heiselbetz
Original Assignee
Elringklinger Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elringklinger Ag filed Critical Elringklinger Ag
Publication of WO2017174325A1 publication Critical patent/WO2017174325A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F01N13/148—Multiple layers of insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

Definitions

  • the invention relates to a shielding part, in particular a hit ⁇ zeschild with a fastening device for fastening the shielding member to a mounting partner part according to the upper ⁇ concept of claim 1.
  • a shielding part which has a fastening device, wherein the attachment ⁇ device has a collar sleeve and the collar sleeve are coupled via bridging elements, which interact with outsides of the Able ⁇ part, with the shielding.
  • the collar sleeve is slidably mounted in a radial direction with respect to the shielding, so that between the collar sleeve and the hole edge of the shielding a game is present.
  • the object of the invention is therefore to develop the shielding such that even with a maximum possible displacement of the sleeve relative to the hole recess of the shielding unwanted noise is avoided. Furthermore, a shielding is to be provided with a fastening device for the shield, which makes the desired Ge ⁇ öschreduzi für realized with simple means. This object is achieved with a shielding with the features of claim 1. Advantageous embodiments are specified in the subclaims.
  • a shielding member according to the invention is in particular designed as a heat shield and has a fastening device for fastening of the shielding member to an attachment partner member such.
  • the fastening device comprises listed below components: a collar sleeve with a through hole for a fastener, wherein the collar sleeve has a sleeve ⁇ body, spaced from the two in a radial direction R in an axial direction A to each other frets depart radially outwardly, wherein the collars in the axial direction a between them define a gap and the sleeve body is s is ⁇ arranged in a recess of the shielding member with a radial clearance relative to egg ⁇ nem hole edge of the recess of the shielding,
  • bridging elements which abut with ra ⁇ dial outer regions on opposite outer sides of the shielding directly or indirectly and are arranged with radially inner regions in the intermediate space and are penetrated by the sleeve body
  • Such shielding is inventively labeled in ⁇ characterized in that in the radial direction R between a hole edge of the recess of the shielding member and the sleeve body and in the axial direction A between the collars at least one damping element is arranged that the radial clearance s of the sleeve Body limited to the edge of the hole on an effective radial clearance s' decreasing.
  • a buffer member is provided thus, wel ⁇ ches is arranged between the shield member and the sleeve, that a direct radial clash of the sleeve is prevented on the hole edge of the shield.
  • the Dämp ⁇ tion element is adapted and designed to produce in a collision between the damping element and the hole edge of the shielding or alternatively in a collision between the damping element and the sleeve body no unwanted noise.
  • this is the damping element in comparison to the sleeve body and / or compared to the hole edge of the shielding deformation-soft.
  • the damping element in comparison to that component with which a collision threatens or ma ⁇ ximaler displacement of the collar sleeve relative to the shielding is conceivable, formed deformable soft.
  • the Dämpfungsele ⁇ ment is formed in particular at least in a contact region between the damping element and the shielding or in ei ⁇ nem contact area between the damping element and the sleeve body with respect to the corresponding contact partner parts deformation soft.
  • the abovementioned measures make it possible to effectively form the damping element as a soft buffer element, which exhibits little or no noise even in the event of a collision with adjacent components.
  • the damping element is a wire mesh, a wire tangle, a Drahtgewirk, a
  • Wire mesh or a wire mesh of a metal wire are in particular at a high Tempe- raturclude, as may occur in particular in the field of exhaust systems in question.
  • the damping element may also be formed of a plastic wire, when this is permitted by the Tem ⁇ peratur Struktur.
  • the damping element is designed as a metal or plastic foam.
  • the damping element surrounds the sleeve body like a ring radially free of play.
  • the composite of sleeve, bridging elements and damping element is moved together relative to the shielding, when it comes to an offset between the shielding and the fastening device, in particular due to thermal expansion or vibration.
  • the relative movement between the collar sleeve and the shielding part takes place exclusively in a contact region between the bridging elements and the outer sides of the shielding part.
  • the damping element can be made small in terms of its outer diameter and thus requires a relatively small amount of material.
  • the damping element bezüg ⁇ Lich of the hole edge of the shield at the edge of the hole is arranged From ⁇ shield part radially free of play.
  • the damping element is stationary with respect to a displacement of the sleeve in the radi ⁇ alides with respect to the hole edge and thus bezüg ⁇ Lich arranged the shielding. It does not have to be moved together with the sleeve relative to the shielding.
  • the damping element can already be fastened to the shielding part before the mounting device is mounted. For the assembly of the fastening ⁇ device is then only necessary to mount the bridging elements and the collar sleeve. This can be a simplification in the assembly process.
  • the damping element is dimensioned such that the effective radial clearance s' is greater than or equal to 0 mm.
  • the collar sleeve can be moved relative to the shielding in the manner of a sliding seat in the radial direction R.
  • the effective radial clearance s' of the sleeve relative to the shielding means of the damping element to 0 to reduzie ⁇ ren.
  • a displacement of the collar sleeve inside the recess of the shielding member so that only the Dämp ⁇ Fung element possible under deformation. This may be useful in particular for tuning and influencing the vibration characteristic of the shielding together with the fastening device.
  • the Dämp ⁇ tion element axially biased in the space between the collars, in particular between the bridging elements is arranged.
  • the Studentsbrückungsele- elements advantageously are formed as a spring, which may be more preferably formed as stamp-bent or punched-drawn parts into ⁇ particular from a spring steel sheet, and the like. It is also expedient, optionally a ⁇ parts form the collar sleeve from a sleeve body and integrally from the sleeve body outgoing frets. Alternatively to the above embodiment, it is also expedient to form the collar sleeve from egg ⁇ nem first part and a second part, wherein the first part of the sleeve body and one of the frets integrally formed and the second part is disc-shaped and the two ⁇ th fret of Forms collar sleeve.
  • Figure 1 a first embodiment of an inventive
  • Shielding strongly schematized in a cross ⁇ section by a fastening device of the shielding.
  • Figure 2 a second embodiment of an inventive
  • Shielding strongly schematized in a cross ⁇ section by a fastening device of the shielding.
  • FIGS. 1 and 2 are sectional views in which dimensions of certain components are given below as diameters.
  • the invention is by no means limited to circular in a plan view components with a same diameter in each radial direction. Rather, the spatial forms can deviate in a different than the drawing sectional plane shown.
  • An inventive shielding 1 is as a sheet Blechla ⁇ ge, z. B. formed of an aluminum sheet or a steel sheet.
  • the shielding part 1 can be formed in the usual way one or more layers. It can also have non-metallic insulating layers to ensure, for example, an acoustic insulation can.
  • Such shielding come, for example, to shield heat from hot components, such.
  • turbochargers, exhaust systems, exhaust manifolds or the like in motor vehicle construction are used.
  • the main purpose of such shielding parts is to shield heat-sensitive components from heat radiated from a hot component. Nonetheless, usually shielding parts 1, where they are used in motor vehicle construction, also have sound-absorbing functions.
  • Such shielding 1 can both directly to the heat-emitting component ⁇ , z. B. on the exhaust manifold, or attached to the turbocharger. However, it is to fix possible such From ⁇ screen parts to the components to be protected. In particular, it is often expedient to fasten such Abletei ⁇ le 2 to body parts.
  • a component to which the shielding member 1 is to be attached will be referred to as a fastening partner member 2 hereinafter.
  • the fastening partner part 2 has, for example, a thread 3 into which a screw (not shown) can be screwed in acting as a fastening means.
  • the shielding member 1 has a fastening device for fastening on the mounting part 2 ⁇ partner 4.
  • Fixed To ⁇ constriction device 4 has a collar sleeve 5 with a through hole 6 through which a connecting means, for. B. a screw (not shown), can be pushed through.
  • the collar sleeve 5 is customary ⁇ the attachment partner part 2 to the plant and is fixed there.
  • the collar sleeve 5 has a sleeve body 7, which is for example rotationally symmetrical about a central axis M formed ⁇ .
  • the sleeve body 7 has a réelle barnmes ⁇ ser D H. From the sleeve body 7 go in an axial direction A a first collar 8 and a second collar 9 in a radial direction R radially outward. An axial distance between the first collar 8 and the second collar 9 is designated by a.
  • a bridging member 10 For the production of an operative connection between the collar sleeve 5 and the shielding member 1 is a bridging member 10 see pre ⁇ .
  • the bridging element 10 is formed in the illustrated embodiments according to Figures 1 and 2 of two spring layers, a first spring layer 10a and a second spring layer 10b. Both the first spring layer 10a and the second spring layer 10b have a radially outer region 11. In the radially outer region 11, the first spring layer 10a is set against a first outer side 12a of the shielding part.
  • the two ⁇ th spring layer 10b is set in its radially outer region 11 against an opposite to the first outer side 12a outside 12b of the shielding.
  • the collar sleeve 5 is held in a recess 13 of the shielding part 1.
  • the off ⁇ recess 13 is for example a circular hole and has a diameter D.
  • the recess 13 has a hole edge 14. Radially outside of the hole edge 14, a Reversed closes ⁇ bung portion 15 of the hole edge 14 at.
  • the spring layers are supported 10a and 10b in a radial ⁇ direction R relative to the shield 1 by overcoming frictional forces between the radially outer portion 11 of the spring layers 10a, 10b and the outer sides 12a, 12b in the radial direction R displaceable.
  • the surrounding region 15 is sufficiently sized so as it extends in the radial direction R, that a required displaceability its mountings ⁇ constriction device 4 is relatively ensured to shield 1 sufficiently.
  • the first spring layer 10a and the second spring layer 10b, ie the bridging element 10, also have a radially inner region 16.
  • the spring layers 10a, 10b are located with their radially inner region 16 within a gap 17, which in the axial direction A through the first collar. 8 and the second collar 9 is limited.
  • In the radial direction R of the intermediate space 17 is radially inwardly limited by the sleeve body 7.
  • In the radial direction R to the outside of the gap 17 is not limited by components of the collar sleeve 5.
  • the Zvi ⁇ c region 17 terminates radially outwardly expediently at radially outer end edges 8b, 9b of the collars 8, 9.
  • the radially inner portions 16 of the spring layers 10a and 10b are in particular in the axial direction A spring-biased against inner surfaces 8a, 9a of the first collar 8 and second Federal 9 set.
  • the spring layers 10a, 10b that is, in its entirety, the Kochbrü ⁇ ckungselement 10 are disposed radially without clearance or with little Ra ⁇ dialspiel the sleeve body 7 surrounding.
  • Under gerin ⁇ gem game is understood in this case, a game of a few hundredths or a few tenths of a millimeter, which is to provide for manufacturing reasons, to ensure easy, alssteckendes joining the spring layers 10a, 10b on the sleeve body 7.
  • the game is chosen such that a loose clearance but no significant relative ⁇ movement between the sleeve body 7 and the bridging element is possible.
  • the radial displaceability of the collar sleeve 5 with respect to the shielding part 1 is - as already erläu ⁇ tert - provided by providing a sliding sliding seat and overcoming frictional forces in the region of the radially outer portion 11 of the bridging element 10, ie the spring layers 10a, 10b, which in the radially outer region 11 in the radial direction R relative to the shielding part 1, in particular its outer sides 12a, 12b, move radially.
  • the fastening device 4 is held fixed relative to the shielding part 1.
  • a damping element 18 which in the embodiment of Figure 1 without play o- almost without play rests on the sleeve body 7.
  • the damping ⁇ element 18 has an outer diameter D A , which is smaller in the embodiment of Figure 1 as the diameter D of the recess 13.
  • the damping element 18 is due to ⁇ NES backlash-free or virtually backlash radial seat relative to the sleeve body 7 with the collar sleeve 5 in the radial direction R formed mitbewegbar.
  • the outer diameter D A is selected to the diameter D such that a sliding fit of the fastening device 4 within the game s' is dimensioned sufficiently large, so occurring during operation, relative movements between the shielding part 1 and the fastening device 4, fixed fixed to the mounting part 2 is, can be compensated. Such shifts can occur, for example, due to thermal expansions of the shielding part 1, since the shielding part 1 is usually fastened to the fastening partner part 2 by a plurality of fastening devices . Heating and cooling of the shielding part 1 causes thermal expansions which can be compensated for in the sliding fit between the fastening device 4 according to the invention and the shielding part 1.
  • the damping element 18 differs from the übri ⁇ gen components (collar sleeve 5, bridging member 10 and Ab ⁇ screen part 1) essentially in that, relative to said components, in particular at least in a contact ⁇ area 20 which with the edge of the hole 14 in it a maximum possible ⁇ union displacement of the attachment device 4 relative to the shielding member 1 can come into contact, verformungswei ⁇ cher is formed.
  • the damping element 18 is made of a wire structure, in particular a steel wire structure, for example example, a wire mesh, a wire tangle , a Drahtgewe ⁇ be, a knitted wire or a Drahtgewirke formed.
  • a wire structure in particular a steel wire structure, for example example, a wire mesh, a wire tangle , a Drahtgewe ⁇ be, a knitted wire or a Drahtgewirke formed.
  • the material of the wire for example a steel wire itself is not necessarily deformation-soft than a component such.
  • the shielding part 1 but is seen by a loose or loose arrangement of the wire in the form of a compressed wire mesh, wire tangle or wire mesh and where appropriate ⁇ a wire mesh or a wire knit the damping element 18 seen as a whole body deformed ⁇ cher than, for example, the shielding part 1, with the hole edge 14, the damping element 18 may come into contact in an extreme position.
  • the term "deformation ⁇ softer" is to be understood in that at least in the ge ⁇ called contact area 20, the damping element 18 is formed ⁇ such that it is designed as a total body at least in Kunststoffbe ⁇ rich 20 compliant, ie deformation soft than a partner part , For example, the shielding part 1, with which it gets in contact area 20 in contact.
  • the damping element 18 may be meaningfully formed from a metal foam. In areas with lower temperature load of the shielding member 1, it may optionally also be expedient to form the damping element 18 made of a synthetic material ⁇ wire fabric, a plastic fiber structure or a plastic foam.
  • the effective Radi ⁇ alspiel s ' is greater than 0 mm formed so that the Fixed To ⁇ constriction device 4 relative to the shielding member 1 via a sliding fit within the effective radial clearance s' has.
  • the outside diameter D A of the damping element 18 can also be selected such that it is equal to the outside diameter D of the recess 13 in the shielding part 1. This results a play-free or almost play-free fit of the fastening device 4 within the recess 13 of the shield 1.
  • the damping element 18 acts due to its design as a damping wire structure or noise damping due to its design as a damping foam structure, for example, due to radial vibrations of the shielding 1 a knocking contact between the Hole edge of the recess 13 and the contact area 20 would arise during operation of the shielding.
  • the damping element 18 may also be pre-tensioned in the intermediate space 17 ⁇ sitting, and thus the spring layers 10a, 10b in the radially inner region supporting against the inner sides 8a, 9a of the collars 8, press.
  • the Dämpfungsele ⁇ ment 18 can thus ensure in a simple manner by its arrangement in the intermediate space 17 and an effective axial bias of the bridging element 10 with respect to the collar sleeve 5 and act as a spacer.
  • the collar sleeve 5 is formed in the embodiment of Figure 1 from a first part 5a and a second disc-shaped component 5b.
  • the first part 5a forms the sleeve body 7 and the second collar 9.
  • the disc-shaped second part 5b form the first collar 8 and is connected in a known manner with the first part 5a.
  • the Fixed To ⁇ constriction device comprising 4 is of particular advantage that the damping element 18 is seated in a closed space, so that ei ⁇ ne contamination or entry of cross contamination in the pores of the damping element, if it for example, as a wire structure or a foam structure is formed, is ver ⁇ prevented.
  • the space in which the damping element sits dirty is limited in the axial direction A by the spring layers 10a, 10b. Radially inside this space is limited by the sleeve body 7. Radially outside the space is limited by the first Federla ⁇ ge 10a, the second spring layer 10b and the hole edge 14 of the Ab ⁇ screen part 1.
  • the spring layers 10a, 10b are in be ⁇ particularly preferably formed of a stainless steel, in particular a spring steel and preferably have a thin wall thickness, in particular in the range between 0.2 mm and 0.5 mm.
  • the second embodiment of the shielding part 1 according to the invention has a similar basic structure as the previously described first embodiment according to Figure 1, so that the same components are provided with the same reference numerals. With the exception of the differences described below, the statements made for the embodiment according to FIG. 1 also apply to the embodiment according to FIG. 2.
  • the Damping element 18 has an outer diameter D A , which corresponds to the diameter D of the recess 13 in the shielding part 1, so that the damping element 18 seated free play or almost play ⁇ free or biased in the radial direction R in the recess 13.
  • the damping element 18 has an inner diameter Di which is greater than the outer diameter D H of the sleeve body 7.
  • the collar sleeve 5 is in this embodiment, together with the sleeve body 7 backlash or almost backlash ⁇ umbending ⁇ bridging element 10, consisting of the first Fe ⁇ derlage 10 a and the second spring layer 10 b relative to the damping element 18 within the effective radial clearance s' ver ⁇ displaceably arranged ,
  • the damping element 18 is seated radially fixed in the recess 13 of the shielding part 1, so that the Fe ⁇ derlagen 10 a, 10 b abut in the radial direction R on the damping element 18 and radially relative to the damping element 18 are ver ⁇ displaceable.
  • the contact area 20 of the damping element 18 extends over almost the GESAM ⁇ te axial height a of the clearance 17th
  • the contact- Area 20 acts in the case of a maximum displacement of the collar sleeve 5 in the radial direction R with an outer side 21 of the collar sleeve 5, respectively, of the sleeve body 7 together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

Élément de protection, en particulier écran thermique, doté d'un dispositif de fixation (4) servant à fixer l'élément de protection (1) sur un élément récepteur correspondant (2).
PCT/EP2017/056277 2016-04-05 2017-03-16 Élément de protection comprenant un dispositif de fixation permettant de fixer l'élément de protection sur un élément récepteur correspondant WO2017174325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016106153.0 2016-04-05
DE102016106153.0A DE102016106153A1 (de) 2016-04-05 2016-04-05 Abschirmteil, insbesondere Hitzeschild mit einer Befestigungsvorrichtung zum Befestigen des Abschirmteiles an einem Befestigungspartnerteil

Publications (1)

Publication Number Publication Date
WO2017174325A1 true WO2017174325A1 (fr) 2017-10-12

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Application Number Title Priority Date Filing Date
PCT/EP2017/056277 WO2017174325A1 (fr) 2016-04-05 2017-03-16 Élément de protection comprenant un dispositif de fixation permettant de fixer l'élément de protection sur un élément récepteur correspondant

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DE (1) DE102016106153A1 (fr)
WO (1) WO2017174325A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022214203A1 (fr) * 2021-03-30 2022-10-13 Elringklinger Ag Pièce de blindage, en particulier écran thermique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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