WO2020126455A1 - Unité de recouvrement - Google Patents

Unité de recouvrement Download PDF

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Publication number
WO2020126455A1
WO2020126455A1 PCT/EP2019/083418 EP2019083418W WO2020126455A1 WO 2020126455 A1 WO2020126455 A1 WO 2020126455A1 EP 2019083418 W EP2019083418 W EP 2019083418W WO 2020126455 A1 WO2020126455 A1 WO 2020126455A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
sealing
elements
unit
cover unit
Prior art date
Application number
PCT/EP2019/083418
Other languages
German (de)
English (en)
Inventor
Ulf JANSSENS
Torsten STIFEL
Armin Ehni
Thomas Semmler
Fabian Schmid
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 WO2020126455A1 publication Critical patent/WO2020126455A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings

Definitions

  • the invention relates to a cover unit for a component to be covered.
  • the component to be covered is a motor housing.
  • the cover unit is provided for an internal combustion engine.
  • the cover unit in the internal combustion engine for example, covers it in the region of the cylinder head and is in particular designed as a cylinder head cover.
  • the cover unit is provided in particular to cover parts of the component to be covered.
  • the cover unit partially covers the component to be covered in an assembled state.
  • the cover unit is firmly mounted on the component to be covered in the assembled state.
  • Cover unit should be inexpensive to manufacture and should be easy to install on the component to be covered.
  • the cover unit should be inexpensive to manufacture and should be easy to install on the component to be covered.
  • Cover unit also have a light weight.
  • the invention is therefore based on the object of improving a cover unit of the generic type, in particular with regard to at least one of the problems mentioned above. According to the invention, this object is achieved as follows with a cover unit of the type mentioned at the outset.
  • the cover unit comprises a plurality of cover elements, each of the cover elements being arranged on at least one other cover element at least in an assembled state with play and the cover elements being sealed off from one another.
  • cover elements each comprise at least one part requiring precision.
  • all of the covering elements each comprise at least one part that requires precision.
  • a cover element includes exactly one precision
  • Cover element comprises several precision-requiring parts.
  • several, in particular all, of the cover elements comprise several parts requiring precision.
  • Cover element or a plurality of cover elements comprises / comprise exactly one precision-requiring part and a cover element or a plurality of cover elements comprises / comprise several precision-requiring parts.
  • Parts that require precision are, in particular, parts of the
  • cover elements which in the assembled state must be aligned in a precise position relative to the component to be covered and must be mounted thereon.
  • at least one part requiring precision must be precise
  • At least one part requiring precision must be manufactured with high accuracy.
  • the tolerances allowed are extremely small for at least one part requiring precision.
  • Cover elements can each be designed according to their requirements and are designed differently, for example.
  • the individual cover elements can thus be manufactured with greater tolerances, so that the manufacturing process becomes more cost-effective.
  • Cover elements during assembly can still be moved within the game, so that the assembly is made easier with regard to the precision-requiring parts, since these can be aligned precisely with the component to be covered, regardless of the precision-requiring parts of the other cover elements, since the respective cover elements can be moved with respect to one another and with play can be aligned with it.
  • an over-definition in the arrangement of the cover unit on the component to be covered for example with regard to the precise arrangement of the plurality of parts requiring precision, can be avoided, since the individual cover elements are each individually at least within their intended relative to the component to be covered Game can be aligned.
  • At least one cover element has at least one sealing section.
  • exactly one cover element comprises exactly one
  • Sealing section or several sealing sections.
  • the plurality of cover elements each comprise exactly one sealing section or several sealing sections.
  • Sealing section the corresponding feature is provided.
  • several, for example all, of the sealing sections have the corresponding feature.
  • the sealing section is provided in particular for sealing against another cover element.
  • the corresponding are in the assembled state and in particular also in the assembled state
  • Cover elements on the sealing section are arranged sealingly to one another.
  • the sealing section essentially surrounds the cover element, for example along an edge contour thereof.
  • At least two cover elements are sealed off from one another along a sealing surface.
  • Each of the cover elements preferably has one or more sealing surfaces, on which this cover element is sealed off from a further cover element.
  • the one sealing surface in particular several, for example all, of the sealing surfaces has / have one or more of the features mentioned below.
  • the sealing section of at least one cover element has the sealing surface of this cover element.
  • sealing sections each have a respective one
  • the sealing section is wider than the sealing surface, in particular at least approximately perpendicular to a direction in which the sealing section and the sealing surface run.
  • the sealing section is wider, preferably at least approximately perpendicular, to a sealing pressing direction
  • the sealing section thus provides a wider area than is necessary for the sealing itself.
  • the cover elements can be moved against each other at least within their intended play and the respective sealing section provides a surface opposite the other cover element, which serves as a sealing surface.
  • all of the sealing sections are at least approximately wider than their respective sealing surfaces perpendicular to the direction of travel.
  • the sealing surfaces of at least one cover element for the most part run at least approximately in a geometric sealing plane.
  • sealing surfaces are preferably oriented essentially identically. It is particularly preferred if the sealing surfaces mostly have the same orientation. In particularly favorable execution forms it is provided that all sealing surfaces are the same
  • surfaces are oriented identically, in which their normals run at least approximately parallel to one another.
  • the geometric sealing planes of a plurality of cover elements for example the geometric sealing planes of a large part of the cover elements, run at least approximately parallel to one another.
  • the geometric sealing planes of all cover elements preferably run at least approximately parallel to one another.
  • the cover unit comprises a base cover element.
  • an easy-to-install cover unit can be provided, since at least a large part of the cover elements can only be arranged on a further cover element, namely the basic cover element.
  • the base cover element is a
  • the strut is formed from a plurality of sealing sections.
  • the strut preferably has a plurality of sealing surfaces of the basic cover element.
  • the strut has all the sealing surfaces of the basic cover element.
  • At least one cover element comprises an edge section. It is preferably provided that all
  • Cover elements each include a respective edge section.
  • edge section runs or the edge sections run along a respective geometric edge contour.
  • the geometric edge contour essentially runs in a geometric edge plane.
  • the edge section also advantageously runs essentially in the geometric edge plane. This simplifies the assembly of the cover unit, since the cover element with the edge section running essentially in the edge plane is easier to install.
  • the cover part essentially serves to cover the component to be covered.
  • the cover part runs essentially in one
  • the cover element covers the component to be covered in the area of the cover surface.
  • cover surface of a cover element is surrounded by its edge contour.
  • the cover element extends essentially in its cover surface.
  • a cover element is an essentially planar cover element.
  • several cover elements for example all of the cover elements, are essentially planar.
  • the base cover element is an essentially planar cover element.
  • the cover surface of an essentially planar cover element essentially runs in a geometrical plane.
  • a plurality of essentially planar cover elements provides, in particular, a compact cover unit which, although it consists of several cover elements, does not require too much installation space.
  • the geometric edge plane and the geometric plane in which the cover surface extends at least approximately coincide.
  • the cover unit covers a cover space.
  • a cover element arches over the cover space.
  • a plurality of cover elements arch over the cover space.
  • Cover elements whose cover surface is curved.
  • the cover surface of the cover element arching over the cover space at least partially forms a geometric interface of the cover space.
  • the edge section has the sealing surface.
  • the edge section has the sealing surface.
  • edge section forms the sealing section.
  • the cover elements can be made from a wide variety of materials.
  • a cover element comprises plastic, in particular is made of plastic.
  • cover elements comprise plastic, in particular are made of plastic.
  • the plastic is a fiber-reinforced plastic.
  • cover elements which can be produced inexpensively and are light in weight. Larger manufacturing tolerances in the manufacture of plastic are compensated for by the formation of the cover unit from several cover elements as described above.
  • Cover element comprises a metal, for example several cover elements comprise a metal.
  • this is a cover element or the plurality of cover elements are made of metal.
  • metals and / or alloys can be used.
  • the metal is
  • Embodiments provide that several cover elements are designed as load-bearing elements.
  • the cover element designed as a supporting element is provided in order to carry a force-transmitting element.
  • the force-transmitting element is a shaft, for example a drive shaft.
  • the shaft extends through the supporting element.
  • the load-bearing element must stabilize the shaft and therefore hold it load-bearing.
  • cover elements are arranged adjacent to one another.
  • at least one cover element has a receptacle for another cover element.
  • the receptacle is provided for the cover element designed as a supporting element.
  • the receptacle forms a socket for the other cover element.
  • the cover element received by the receptacle is encompassed by a receiving section of the receptacle.
  • At least one latching device is provided for cover elements.
  • At least two cover elements can be latched to one another by means of the latching device. This means that the snap-on cover elements are easy to position and assemble with each other.
  • the latched cover elements in particular are connected to one another and the cover unit can be assembled more easily since individual elements do not have to be installed, but cover elements connected to one another are to be installed.
  • the cover elements can preferably be latched with play with the latching device, so that the latched elements are connected and can nevertheless be moved relative to one another with play.
  • the cover elements to be snapped into place are snapped into place.
  • a tolerance gap is provided between at least two cover elements, at least in the installed state.
  • the at least two cover elements can still be moved during assembly, at least within a free space given by the tolerance gap, and in particular the parts of these cover elements which require precision can be moved precisely to the component to be covered
  • the tolerance gap between at least two cover elements is also provided in the assembled state.
  • the tolerance gap or one of the several tolerance gaps is provided between two cover elements which are arranged next to one another and have different coefficients of thermal expansion.
  • the tolerance gap affects the two
  • a sealing element is arranged in the tolerance gap and so the cover elements are arranged sealingly against one another despite the tolerance gap.
  • the tolerance gap essentially runs at least in sections along the edge contour of the corresponding cover element.
  • fastening means are provided for fastening the cover unit to the component to be covered.
  • the fastening means are provided in order to fasten a cover element to the component to be covered.
  • the further cover elements are pressed between the cover element fastened with the fastening means and the component to be covered.
  • cover elements are attached directly to the component to be covered.
  • the individual cover elements can preferably be attached individually to the component to be covered, and the advantage that the cover elements can be moved with respect to one another is particularly advantageous during assembly.
  • cover element has a fastening recess or a plurality of fastening recesses is particularly favorable.
  • other cover elements can be fastened to the fastening recess directly on the component to be covered without the displaceability of the cover element having the fastening recess being impaired.
  • cover elements have a fastening recess or several fastening recesses.
  • fastening recess or the fastening recesses for one fastener or several fasteners, in particular another cover element are provided.
  • one fastening means in one or more fastening recesses is provided.
  • a plurality of fastening means reach through in one or more fastening recesses.
  • fastening means of other cover elements could reach through between the individual sections of the strut. It is particularly expedient if the fastening means each
  • a press-on pressure is preferably generated by the fastening means at least on the sealing surfaces of the respective cover element.
  • the contact pressure of the several, in particular at least a large part, for example all, of the fastening means acts at least approximately in the same sealing press direction.
  • Sealing essentially takes place in only the sealing pressing direction and the fastening means generate a contact pressure in this sealing pressing direction.
  • the cover element designed as a load-bearing element can be connected to the component to be covered without play and in particular can be fastened to the component to be covered without play.
  • the cover element designed as a load-bearing element is connected to the component to be covered without play and in particular is fastened to it without play.
  • the cover element which is designed as a load-bearing element, is hard-bolted to the component to be covered.
  • Cover element and the component to be covered a stable and firmly connected unit, in which in particular large forces can be transmitted.
  • the cover unit comprises a cover sealing surface for sealing the cover unit from the component to be covered.
  • the cover sealing surface can have different shapes.
  • cover sealing surface extends at least for the most part at least approximately in a geometric cover sealing plane.
  • the cover sealing surface is essentially flat and in one plane, so that the cover unit can be easily mounted on the component to be covered and one
  • the cover sealing surface runs along a cover sealing section.
  • the cover sealing section extends at least partially along one or more corresponding edge sections of one or more cover elements.
  • cover sealing section is at least approximately perpendicular to a direction along which the cover sealing section and the cover
  • cover sealing section is designed to be wider, in particular at least approximately perpendicular, to the sealing pressing direction than the cover sealing surface.
  • exactly one cover element for example the base cover element, has the entire cover sealing surface.
  • the assembly is made easier, since then essentially only the one covering element has to be placed directly on the component to be covered.
  • the cover sealing level runs at least approximately parallel to a geometric cover element level of the exactly one cover element.
  • the cover sealing plane runs at least approximately parallel to the cover surface of the exactly one cover element.
  • Cover sealing surface is formed by several cover elements. It is preferably provided that the cover sealing surface is formed by exactly two cover elements.
  • the load-bearing element is thus connected directly to the component to be covered, and sealing is carried out on the section of the cover sealing surface between the cover element designed as a load-bearing element and the component to be covered.
  • the cover unit comprises at least one sealing element for sealing between at least two cover elements.
  • a sealing element is arranged between two cover elements to be sealed against each other. It is preferably provided that the one or more sealing elements are acted upon by the cover elements and / or by means of the fastening means, at least approximately in the same sealing pressing direction.
  • the sealing element is arranged in the assembled state and in the assembled state between two corresponding sealing surfaces and is pressed, for example, between them.
  • the plurality of sealing elements are preferably arranged between respective sealing surfaces and in particular are pressed between them.
  • the cover unit comprises a sealing element for the seal between the cover unit and the component to be covered.
  • the sealing element is preferably pressed between the cover unit and the component to be covered.
  • the plurality of sealing elements are provided as individual pieces.
  • a plurality of sealing elements are formed in one piece as a sealing unit element.
  • sealing unit element is to be assembled.
  • a more reliable seal is made possible by means of a one-piece sealing unit element.
  • all sealing elements, which are provided for sealing between cover elements, are designed as a one-piece sealing unit element.
  • the sealing unit element also comprises the sealing element for the seal between the cover unit and the component to be covered.
  • all sealing elements which are provided for the sealing between the covering elements and for the sealing between the covering unit and the component to be covered are designed as a one-piece sealing unit element.
  • Sealing unit comprises exactly one sealing unit element.
  • At least one cover element has a groove.
  • the groove is provided for a sealing element.
  • the sealing element sealing the cover element is at least partially arranged in the groove.
  • the sealing element is preferably held in the groove in the correct position, thus simplifying assembly.
  • a groove bottom of the groove forms at least a portion of the sealing surface of the cover element.
  • the groove is arranged at least in sections on the sealing section of the cover element.
  • the groove is additionally or alternatively provided as a guide for another cover element to be arranged on the cover element.
  • the other cover element partially engages in the groove and is guided by it.
  • the groove is in particular dimensioned such that the other cover element engages with play in this groove.
  • Cover element has / have a groove.
  • This groove is particularly for the inclusion of between
  • At least one sealing element seals at least one tolerance gap.
  • the sealing elements can be made from a wide variety of materials.
  • sealing elements made of an essentially liquid, in particular viscous, sealing agent could be used.
  • one sealing element, in particular several, preferably all, of the sealing elements is / are elastic.
  • the elastically designed sealing element can preferably adapt to a displacement of the cover elements, and so a reliable seal is provided even if the cover elements are still displaced for precise alignment during assembly.
  • a sealing element comprises and is an elastomer
  • sealing elements in particular made of an elastomer. It is particularly preferred if a plurality of sealing elements, for example all sealing elements, comprise an elastomer, in particular are formed from an elastomer.
  • the part requiring precision is a separate part to be arranged, for example fastened, on the cover element.
  • the precision-requiring part is formed in one piece with the rest of the cover element which has this precision-requiring part.
  • the precision-requiring part is formed in one piece with the rest of the cover element which has this precision-requiring part.
  • the cover element is at least partially to be manufactured with strict tolerance requirements.
  • the part requiring precision is part of a control device or is provided as part of a control device and is designed in this way.
  • the part requiring precision is a passage for a shaft.
  • Friction losses in the passage can meet.
  • the shaft is a drive shaft.
  • the passage is in particular a passage in a cover element designed as a load-bearing element, so that the load-bearing element can stably support the drive shaft.
  • one or more parts requiring precision is / are a passage for a control shaft. Precise shaft support is also necessary here.
  • control shaft is a camshaft.
  • control elements are still arranged in the part requiring precision, in particular in the passage.
  • control elements are camshaft adjusters.
  • attachment points in particular for the attachment means, and / or the attachment means themselves, are also a precision-requiring part of the cover element. It is
  • this cover element in the case of a cover element which has a fastening point and / or a fastening means as the part requiring precision, this cover element also comprises at least one further part requiring precision.
  • a tolerance accuracy of up to ⁇ 0.5 mm, in particular of up to 0.2 mm, must be maintained for at least one part requiring precision.
  • the precision part must be aligned and / or manufactured in which the deviations must not be greater than up to ⁇ 0.5 mm, preferably not greater than ⁇ 0.2 mm.
  • a tolerance accuracy of up to ⁇ 0.5 mm, in particular of up to ⁇ 0.2 mm, must be maintained in the case of several, for example all, precision parts.
  • the passageway must be manufactured with the above-mentioned tolerance accuracy.
  • this is the part requiring precision, in particular those are
  • the tolerance accuracy affects both the manufacture and the alignment of the part requiring precision
  • the cover unit has other elements for additional functions.
  • the cover unit includes a holding element.
  • the holding element is provided for holding the component to be covered, for example on a frame.
  • the holding element is a suspension for the component to be covered.
  • the holding element is a motor suspension for the motor to be covered with the cover unit.
  • the holding element comprises metal and is in particular made of metal.
  • a stable holding element is thus provided which can hold the component to be covered stably and firmly.
  • the holding element can be fastened to the component to be covered and in particular can be fastened directly to the component to be covered.
  • the holding element can be connected directly to the component and attached to it, so that a stable holder is given.
  • the holding element is attached to the component to be covered, and in particular is attached directly to it.
  • part of the holding element or fastening means provided for fastening the holding element reach through one fastening recess or a plurality of fastening recesses.
  • the holding element can be directly fastened directly to the component to be covered and by reaching through the fastening recess, an arrangement of the corresponding is
  • Another aspect of the invention relates to a housing.
  • the problem corresponds to the problem mentioned at the beginning.
  • the housing comprises a cover unit with one or more of the features mentioned above.
  • the invention further relates to a component to be covered.
  • the component to be covered has a task corresponding to the type mentioned at the beginning.
  • the object is achieved in that the component to be covered comprises a covering unit with one or more of the features mentioned above and in particular one
  • Cover unit at least partially covers the component to be covered.
  • this aspect of the invention relates to an engine, for example an internal combustion engine for motor vehicles.
  • the engine must be covered at least partially, in particular with a cover unit.
  • the engine must be covered in the area of the cylinder head.
  • the motor comprises a cover unit with one or more of the features mentioned above.
  • the advantages mentioned above are transferred accordingly to the engine.
  • the motor comprises a motor housing with a cover unit with one or more of the features mentioned above.
  • the cover unit for the engine is designed as a cylinder head cover.
  • the term "for the most part” is to be understood to mean that at least 80%, preferably at least 90%, in particular at least 95% and for example at least approximately 100% of the amount mentioned have the corresponding feature.
  • cover unit (100) comprises a plurality of cover elements (112), wherein several or all of the plurality of cover elements (112) each comprise at least one part (116) requiring precision, and each of the cover elements (112) in each case at least another cover element (112) is arranged with play at least in an assembled state and the cover elements (112) are sealed against one another.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least two cover elements (112) are sealed against one another along a sealing surface (174).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the sealing section (172) of at least one cover element (112) has the sealing surface (174) of this sealing element (112), and in particular that the sealing section (172) is transverse a direction in which the sealing section (172) and the sealing surface (174) run is wider than the sealing surface (174).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that all sealing surfaces (174) run along corresponding sealing sections (172) of the cover elements (112), in particular the respective sealing sections (172) transverse to the direction of travel are wider than the sealing surfaces (174).
  • cover unit (100) according to one of the preceding embodiments, characterized in that the sealing surfaces (174) of at least one cover element (112) largely run at least approximately in a geometric sealing plane,
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the geometric sealing planes of a plurality of cover elements (112), in particular all cover elements (112), run at least approximately parallel to one another.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the cover unit (100) comprises a base cover element (342), in particular on the base cover element (342) at least a large part of the other cover elements (112), in particular all other cover elements (112) are arranged with play.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the base cover element (342) has a strut (346), which in particular consists of several
  • Sealing sections (172) is formed, and in particular the
  • Bracing (346) comprises a plurality of sealing surfaces (174), in particular all sealing surfaces (174) of the basic cover element (342).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) comprises an edge section (132), in particular all
  • Cover elements (112) each comprise a respective edge section (132), the respective edge section (132) along a
  • geometric edge contour (134) runs.
  • Cover unit (100) according to one of the preceding embodiments characterized in that at least one cover element (112), in particular all cover elements (112), comprise a cover part, in particular a respective cover part extending in a respective cover surface.
  • Cover unit (100) according to one of the preceding embodiments characterized in that at least one cover element (112) extends essentially in a geometric plane, in particular its cover surface (136) running essentially in the geometric plane.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) arches over a cover space (126), in particular its cover surface (136) at least partially having a geometric boundary surface of the cover space (126) trains.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that in at least one cover element (112) the edge section (132) has the sealing surface (174), in particular the edge section (132) forms the sealing section (172).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) comprises plastic, in particular is made of plastic.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that all cover elements (112) comprise plastic, in particular are made of plastic.
  • a cover unit (100) according to one of the preceding embodiments characterized in that at least one cover element (112) comprises a metal, in particular is formed from a metal, the metal in particular being aluminum. 18. Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) is designed as a load-bearing element (218).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) has a receptacle (142) for another cover element (112), in particular for the cover element (112) designed as a load-bearing element (218) ), having.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one latching device is provided, by means of which at least two cover elements (112) can be latched to one another, in particular are latched.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that a tolerance gap (152) is provided at least in the assembled state, in particular also in the assembled state, between at least two cover elements (112).
  • Cover unit (100) according to the preceding embodiment, characterized in that a tolerance gap (152) is provided at least between two cover elements (112) which are arranged against one another and have different temperature expansion coefficients.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the tolerance gap (152) extends between respective sealing surfaces (174) of the cover elements (112).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the tolerance gap (152) at least in sections along the edge contour (134) of the corresponding one
  • Cover element (112) runs. 25. Cover unit (100) according to one of the preceding embodiments, characterized in that fastening means (212), in particular for at least one cover element (112), are provided for fastening the cover unit (100) to the component (120) to be covered.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) has at least one fastening recess (214), in particular several fastening recesses (214), for one fastening means (212) or several fastening means (212) .
  • Cover unit (100) according to one of the preceding embodiments, characterized in that one fastening means (212), in particular a plurality of fastening means (212), in each case
  • Fastening recess (214) or with several respective fastening recesses (214) passes through / reach through with play.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that a plurality of fastening means (212) generate a contact pressure, the contact pressure in particular of at least a large part of the fastening means (212) acting at least approximately in the same sealing pressing direction (178).
  • Cover unit (100) according to one of the preceding embodiments characterized in that the cover element (112) designed as a load-bearing element (218) can be connected without play to the component (120) to be covered and, in particular, is connected without play in the assembled state, in particular is screwed hard.
  • Form the cover unit (100) according to one of the preceding embodiments characterized in that the cover unit (100) comprises a cover sealing surface (222) for sealing the cover unit (100) with respect to the component (120) to be covered.
  • Cover unit (100) according to the preceding embodiment, characterized in that the cover sealing surface (222) for the most part runs at least approximately in a geometric cover sealing plane.
  • cover sealing surface (222) runs along a cover sealing section (226), and in particular the cover sealing section (226) transversely to a direction of travel along which the cover sealing section (226) and the cover sealing surface (222) is wider than the cover sealing surface (222).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that exactly one cover element (112), in particular the base cover element (342), has the entire cover sealing surface (222), in particular the cover sealing plane being at least approximately parallel to one Cover element level runs.
  • Cover unit (100) according to one of the preceding embodiments characterized in that the cover sealing surface (222) is formed by a plurality of cover elements (112), in particular by exactly two cover elements (112).
  • Cover unit (100) according to one of the preceding embodiments, characterized in that the cover unit (100) has at least one sealing element (162) for sealing between at least two
  • Cover elements (112) comprises.
  • Cover unit (100) according to one of the preceding embodiments, characterized in that a sealing element (162) is arranged in each case between two cover elements (112) to be sealed against one another.
  • cover unit (100) according to one of the preceding embodiment, characterized in that the cover unit (100)
  • Sealing element (232) for sealing between the cover unit (100) and the component (120) to be covered.
  • cover unit (100) Form the cover unit (100) according to one of the preceding embodiments, characterized in that a plurality of sealing elements (162, 232) are integrally formed as a sealing unit element (242), in particular that all sealing elements (162, 232) are integrally formed, and in particular that Cover unit (100) exactly one seal
  • sealing unit (100) Forming the sealing unit (100) according to one of the preceding embodiments, characterized in that at least one cover element (112) has a groove (168) for a sealing element (162), in particular a groove bottom forming at least a section of a sealing surface (174).
  • Sealing unit (100) according to one of the preceding embodiments characterized in that at least the cover element (212) having the receptacle (142) and / or the cover element (212) accommodated in the receptacle (142) has a groove (168) for have the sealing element (162) arranged between them.
  • cover unit (100) characterized in that the precision-requiring part (116) of at least one cover element (112) is formed in one piece with the rest of the cover element (112), in particular a precision-requiring part (116) for all of them. having covering elements (112) this is formed in one piece with the rest of the corresponding covering element (112).
  • Cover unit (100) according to one of the preceding embodiments characterized in that, in the case of at least one cover element (112), the part (116) requiring precision has a passage (252), in particular for a shaft, in particular a drive shaft and / or a control shaft, is. 46. Cover unit (100) according to one of the preceding embodiments, characterized in that with at least one part (116) requiring precision, a tolerance accuracy of up to ⁇ 0.5 mm, in particular up to ⁇ 0.2 mm, must be observed.
  • cover unit (100) Form the cover unit (100) according to one of the preceding embodiments, characterized in that the cover unit (100) comprises a holding element (352), in particular made of metal.
  • Cover unit (100) according to the preceding embodiment, characterized in that the holding element (352) can be fastened directly to the component (120) to be covered and, in particular in the assembled state, is fastened directly to it.
  • Housing in particular motor housing, characterized in that this is a cover unit (100) according to one of the preceding
  • Embodiments includes.
  • Motor in particular internal combustion engine for motor vehicles, characterized in that it comprises a cover unit (100) according to one of the preceding embodiments.
  • FIG. 1 shows an exploded view of a component to be covered and a cover unit partially covering this component according to a first exemplary embodiment
  • FIG. 2 shows an enlarged illustration according to FIG. 1;
  • Fig. 3 is a partial perspective view of a cover
  • FIG. 4 shows a cover element which is provided for being received in the receptacle and which is designed as a supporting element
  • Fig. 5 is a plan view of the cover unit and that to be covered
  • Figure 6 shows a section as shown in Figure 5, through the cover unit and the component to be covered.
  • Fig. 7 is a fragmentary enlarged view of the VII
  • Fig. 8 is an illustration similar to Fig. 3, wherein the cover member
  • FIG. 9 shows a detail of a sealing unit element comprising a plurality of sealing elements
  • FIG. 10 shows a perspective illustration of a cover unit according to a second exemplary embodiment
  • Fig. 12 is a cover member according to the second embodiment and Fig. 13 shows a base cover member according to the second embodiment example.
  • Cover unit comprises a plurality of cover elements 112, namely two cover elements 112a and 112b.
  • the cover unit 100 includes a sealing system, generally designated 114.
  • the exemplary embodiment is shown by way of example in FIGS. 1 to 9.
  • the cover unit 100 is provided for covering and in particular for sealing a component 120 to be covered.
  • the cover unit 100 In a state assembled with the component 120 to be covered, the cover unit 100 is fixedly mounted on the component 120 and seals at the intended locations.
  • the component 120 to be covered is an internal combustion engine.
  • the cover unit 100 is provided to cover and seal the internal combustion engine on the cylinder head.
  • the cover elements 112a and 112b each comprise at least one precision-requiring part 116.
  • the precision-requiring parts 116 are, for example, to be precisely aligned with the component 120 to be covered and to be arranged precisely with the component 120 thereon.
  • the cover element 112a bulges substantially over one
  • a part of the component 120 to be covered protrudes into the cover space 126 in the assembled state.
  • the cover element 112a has an edge section 132a, which essentially runs along a geometric edge contour 134a (FIG. 3).
  • the edge contour 134 is a closed contour and delimits a geometric cover surface 136, in which the cover element 112 essentially extends.
  • the cover surface 136 is curved and essentially forms a boundary surface of the cover space 126.
  • the cover element 112 thus extends substantially within the edge contour 134 to the edge contour 134.
  • the cover element 112b also has an edge section 132b which runs along a corresponding geometric edge contour 134b (FIG. 4).
  • the edge contour 134b is a closed contour which borders a covering surface 136b.
  • the cover member 112b extends in the
  • the cover element 112b is essentially designed as a planar cover element 112, with its cover surface 136b in the
  • the second cover element 112b also partially covers the cover space 126.
  • the cover surface 136b of this cover element 112b thus partially also forms a cover surface
  • Boundary area for the cover space 126 is Boundary area for the cover space 126.
  • the cover space 126 extends essentially elongated between two end faces.
  • the part of the cover space 126 which extends in an elongated manner is arched and covered by the first cover element 112a and, for example, one of the two end faces of the cover space 126 is also covered by the first cover element 112a.
  • the second cover element 112b essentially covers one of the two end faces of the cover space 126.
  • the cover elements 112 of the cover unit 100 are arranged with one another with play and the cover elements 112 are arranged sealed against one another.
  • the cover unit 100 is mounted on the component 120 to be covered in the assembled state.
  • the first cover element 112a comprises a receptacle 142 for
  • the cover element 112 comprising the receptacle 142 comprises a receptacle section 144 which encompasses a receptacle area 146.
  • the receiving section 144 is formed by part of the edge section 132.
  • the receiving area 146 is partially delimited by the geometric edge contour 134 of the cover element 112a.
  • the second cover element 112b is essentially arranged in the receiving area 146.
  • the second cover member 112b is on the first
  • Cover element 112a in particular in the receptacle 142, is arranged in a floating manner.
  • the cover elements 112a and 112b for example the receptacle 142, preferably comprise a latching device. Thus, the cover elements 112a and 112b can be snapped together and can thus be attached to one another with play.
  • a tolerance gap 152 runs between the cover elements 112a and 112b.
  • the tolerance gap 152 extends between the cover elements 112a and 112b in an area in which the two are arranged next to one another.
  • the tolerance gap 152 runs along the receiving section 144 in the assembled state.
  • cover parts 112a and 112b are formed from materials with different coefficients of thermal expansion.
  • the cover element 112a is formed, for example, from plastic.
  • the cover element 112b is formed in particular from a metallic material, for example from aluminum.
  • the tolerance gap 152 is designed in such a way that in a temperature application area of the cover unit 100, different expansions of the cover elements 112 are compensated for by the tolerance gap 152 when the temperature changes.
  • a sealing element 162 of the sealing system 114 is arranged between the cover elements 112a and 112b.
  • the sealing element 162 is an elastic sealing element.
  • the sealing element 162 is preferably a soft material seal.
  • the sealing element 162 is an elastomer seal.
  • the sealing element 162 extends between the sealing elements 112 and extends essentially along their edge contours 134.
  • the sealing element 162 is arranged along the receiving section 144.
  • the sealing element 162 In an unassembled state, the sealing element 162 preferably has a shape which runs along a sealing contour 164 and extends transversely to the sealing contour 164.
  • the sealing contour 164 essentially corresponds to the sections of the edge contour 134 in the sections of the cover elements 112, between which the sealing element 162 is intended to seal.
  • the extent transverse to the sealing contour 164 in the direction from one of the cover elements 112 to be sealed to the other cover element 112 to be sealed is in particular greater than an extension of the tolerance gap 152 between the cover elements 112 therein
  • the sealing element 162 at least partially fills the tolerance gap 152 and thus seals between the cover elements 112.
  • the sealing element 162 is preferably acted upon by the cover elements 112 and partially deformed.
  • a groove 168 is provided in one of the cover elements 112, for example in the first cover element 112a.
  • the groove 168 runs at least partially along the edge contour 134 of the cover element 112. In this exemplary embodiment, the groove 168 runs along the receiving section 144.
  • the groove 168 is provided here to partially accommodate the sealing element 162. In this way, the sealing element 162 is preferably held in the correct position between the cover elements 112. In particular, the groove 168 thus also forms a guide for the arrangement of the cover elements 122 on one another. For example, the groove 168 forms a guide in the receptacle 142.
  • the cover elements 112 have sealing sections 172, which are provided for sealing against the other sealing elements 112.
  • the edge sections 132 essentially also form the sealing sections 172.
  • the sealing sections 172 each have a sealing surface 174, which are provided for sealing.
  • sealing sections 172 are designed to be wider transversely to their course than the sealing surfaces 174, so that one
  • the respective sealing section 172 still has an area which as
  • Sealing surface 174 can serve.
  • the sealing system 114 in particular by means of the sealing element 162, forms at least one sealing line on the respective sealing surfaces 174.
  • the sealing surfaces 174 are at least largely transverse to one
  • Sealing direction 178 oriented.
  • the sealing surfaces 174 are oriented at least approximately perpendicular to the sealing press direction 178.
  • the orientation of a surface is essentially transverse, in particular at least approximately perpendicular, to its normal.
  • the sealing surfaces 174 thus run in particular transverse, preferably at least approximately perpendicular, to the sealing pressing direction 178.
  • a receiving side portion 184 is connected to each side of the main receiving portion 182.
  • the receiving side sections 184 encompass the receiving area 146 in particular laterally.
  • the main receptacle section 182 extends in particular transversely, preferably at least approximately perpendicularly, to the sealing pressing direction 178.
  • Sealing surfaces 174 only inclined to the sealing pressing direction 178.
  • the inclination of the sealing surfaces 174 is
  • Sealing pressing direction 178 is nevertheless so great that the part of the sealing element 162 which is arranged in the region of the receiving side sections 184 between the cover elements 112 is acted upon sufficiently by the covering elements 112 when loaded in the assembled state and thus also in the region of the receiving side sections 184 between the covering elements 112 seals.
  • the receiving area 146 is run essentially in the direction of the sealing pressing direction 178.
  • the cover element 112 received in the receptacle 142 for example the cover element 112b, is in the assembled state with respect to the sealing pressing direction 178 between the
  • Receiving section 144 in particular its main receiving section 182, and the component 120 to be covered.
  • the sealing surface 174 is arranged in the groove 168.
  • a groove bottom forms the sealing surface 174.
  • the other cover element 112b has no groove 168 in the region of the sealing surface 174.
  • sealing section 172b forms the sealing surface 174b.
  • the other cover element 112b also has a groove 168, into which the sealing element 162 in the assembled state and in the assembled state
  • the sealing sections 172 of the cover elements 112 are transverse to the sealing contour 164 and transverse to the sealing pressing direction 178,
  • Sealing surfaces 174 are designed to be wider, in particular at least approximately perpendicular, to the sealing contour 164 and the sealing press direction 178 than the sealing surfaces 174 themselves.
  • sealing elements 112 can be displaced relative to one another within their play, and parts of the sealing sections 172 of the respective cover elements 112 are always arranged opposite one another, so that these opposite parts of the sealing sections 172
  • sealing surfaces 174 and the cover elements 112 can be sealed and sealed at their respective play on sealing surfaces 174.
  • the cover elements 112 are preassembled to one another in the assembled state.
  • the cover unit 100 can thus be mounted on the component 120 to be sealed as a component which consists of a plurality of cover elements 112 which are firmly arranged with play.
  • the cover unit 100 covers an area to be covered in the component 120 to be covered, the area to be covered in this embodiment being the cover space 126 and the cover unit 100 covering this cover space 126.
  • the individual cover elements 112 are preferably each connected directly to the component 120 to be covered and fastened thereon.
  • fastening means 212 are provided, which in particular comprise cooperating fastening parts.
  • one fastening part each is arranged on the respective cover element 112 and on the component 120 to be covered.
  • the respective fastening means 212 must be precisely adjusted in its position.
  • the interacting fastening parts must be precisely aligned with each other.
  • the fastening means 212 thus form, in particular, precision-required parts 116 of the respective cover elements 112.
  • the fastening means 212 comprise a screw and a screw socket, the screw having to be inserted into the screw socket with a precise fit.
  • At least one of the cover elements 112, here for example the cover element 112b, comprises a fastening recess 214.
  • the mounting recess 214 is provided to one of the cover elements 112, here the cover element 112a, by means of its
  • Fastening means 212 to connect another cover element 112, here the cover element 112b, directly to the component 120 to be covered.
  • the cover element 112 for example the cover element 112b, with the fastening recess 214 lies between the other cover element 112, here the cover element 112a, and the component 120 to be covered.
  • the fastening means 212 engages through the fastening recess 214 without the covering element 112 having the fastening recess 214, here the covering element 112b, in its position, in particular at least in its position within the intended play
  • the fastening recess 214 is designed as a passage for the fastening means 212.
  • a conversion of the fastening recess 214 encompasses a passage opening for the fastening means 212. The opening is so large that the fastening recess 214
  • Fastening means 212 can reach through them without the covering element 112 having the fastening recess 214 being impaired in a positional shift, at least in its intended play.
  • the conversion of the fastening recess 214 forms a stop for the fastening means 212 extending through it, the fastening means 212 during a relative displacement of the cover elements 112, which on the one hand have the fastening means 212 and on the other hand the fastening recess 214, against which the stop forming the stop strikes and within the intended game that
  • Fastening means 212 and the stop are spaced apart.
  • the trained cover element 112 here for example the cover element 112b, is firmly and firmly connected to the component 120 to be covered and thus the load-bearing element 218 forms a large force-resistant unit with the component 120 to be covered.
  • the load-bearing element 218 is screwed to the component 120 to be covered.
  • the cover unit 100 comprises a cover sealing surface 222 for sealing against the component 120 to be sealed.
  • the cover sealing surface 222 extends essentially along a geometric cover sealing contour 224.
  • the cover sealing contour 224 runs at least essentially in sections along a respective edge contour 134 of a respective cover element 112.
  • edge contour 134 and the cover sealing contour 224 coincide at least in sections.
  • the cover sealing surface 222 is at least largely oriented transversely, preferably at least approximately perpendicularly, to the sealing pressing direction 178.
  • cover sealing surface 222 extends in the
  • sealing pressing direction 178 Essentially transversely to the sealing pressing direction 178, in particular at least approximately perpendicular to the sealing pressing direction 178.
  • cover sealing surface 222 is designed to correspond to a sealing surface on the component 120 to be covered.
  • sealing surface on the component 120 to be covered runs along an edge portion thereof.
  • the sealing surface on the component 120 to be covered essentially runs along one of the sealing cover contour 224
  • Cover elements 112a and 112b is formed.
  • cover elements 112 which at least partially form the cover sealing surface 222, that is to say, for example, the cover elements 112a and 112b, have cover sealing sections 226.
  • the cover sealing sections 226 form the cover sealing surfaces 222.
  • the cover sealing portions 226 are formed by respective edge portions 132.
  • the cover unit 100 further comprises a sealing element 232 for sealing between the cover elements 112 and the component 120 to be sealed.
  • the sealing element 232 runs essentially along one
  • Cover sealing contour 224 corresponding contour.
  • the sealing element 232 is preferably designed to be elastic.
  • the sealing element 232 is a soft material seal, for example an elastomer seal.
  • the cover sealing portion 226 has a groove 236.
  • the groove 236 is provided for receiving the sealing element 232.
  • the sealing element 232 is arranged in the groove 236.
  • the cover unit 100 can thus be easily mounted on the component 120 to be covered as a component of cover elements 112 and the sealing element 232.
  • sealing element 232 for sealing between the cover unit 100 and the component 120 to be covered
  • Sealing element 162 for sealing between the cover elements 112 is designed as a one-piece sealing unit element 242 (FIG. 9).
  • the sealing unit element 242 has several
  • Sealing sections which each run along corresponding sections of the cover sealing contour 224 and the sealing contour 164.
  • the individual sections are integrally connected to one another.
  • sealing unit element 242 in particular forms several
  • a respective sealing loop runs around a respective one
  • sealing elements 232 and 162 and thus also the sealing unit element 242 essentially have an H-shaped profile in a cross section which runs transversely, in particular at least approximately perpendicularly to the sealing contour 164 or cover sealing contour 224.
  • two sealing lips 246 each extend from a sealing main body in the direction of each of the sealing surfaces to be sealed.
  • the second cover element 112b is designed as a supporting element 218.
  • the load-bearing element 218 has, for example, two passages 252.
  • the passages 252 are in particular provided as passages 252 for control devices, in particular control shafts.
  • the passages 252 are each provided for a camshaft.
  • the control device in particular the control cases, engages through the respective passage 252 in an assembled state.
  • the cover element 112 forming the load-bearing element 218, here, for example, the cover element 112b, is stable and the control device is load-bearing, that is to say appropriately stable, and in particular firmly connected to the component 120 to be sealed.
  • control device in particular the control shaft, must be arranged precisely and thus high precision requirements are placed on the passages 252.
  • the passages 252 may only have small tolerances and thus high precision requirements are placed on their manufacture.
  • the passages 252 thus form, in particular, precision-required parts 116 of the cover element 112.
  • the cover unit 100 comprises a plurality of cover elements 112 for covering a component 120 and in particular for sealing it.
  • cover elements 112 have high precision requirements, in particular with regard to their relative position in an assembled state to the component 120.
  • one or more of the cover members 112 has a precision-requiring part 116 that needs to be precisely positioned.
  • the cover elements 112 are arranged with play against one another and sealed against one another.
  • the cover elements can be precisely aligned with and mounted on the component 120, tolerance inaccuracies between the cover elements 112 being able to be compensated for by their play relative to one another.
  • a sealing element 162 is provided for sealing the cover elements 112 against one another, which is designed in particular to be elastic. Thus is a seal of the
  • the sealing surfaces 174 on the cover elements 112, on which the cover elements 112 are sealed against one another, and the cover sealing surface 222 on which is sealed between the cover unit 100 and the component 120 to be sealed, are oriented essentially the same. This simplifies assembly, since essentially only one application is required in one direction, namely the sealing press direction 178.
  • sealing surfaces 174 and / or the cover sealing surface 222 are oriented essentially the same if they run at least approximately parallel to one another.
  • the sealing surfaces 174 and / or the cover sealing surface 222 are oriented essentially identically if they run transversely, preferably at least approximately perpendicularly, to the sealing press direction 178.
  • Sealing elements 162 and 232 are provided for sealing, these preferably forming a one-piece sealing unit element 242 for easier assembly.
  • a cover element here for example the cover element 112b, in which the precision-requiring part 116 has to be particularly precise, is made of metal, in particular aluminum.
  • the precision-requiring part 116 is in particular a passage 252 for a control device, in particular a control shaft.
  • the cover unit 100 has a cover element 112, here for example the cover element 112b, which is a load-bearing element 118.
  • the load-bearing element 118 is provided in particular for holding a force-transmitting element, for example a shaft, and must be designed to be correspondingly stable for holding this force-transmitting element.
  • the load-bearing element 118 and thus also the cover element 112 forming the load-bearing element 118 are preferably formed from metal, for example aluminum.
  • cover elements 112 are fastened by means of fastening means 212 directly to the component 120 to be sealed.
  • the fastening means 212 preferably act on the cover elements 212 at least approximately in the same way
  • the fastening means 212 are arranged in such a way that they do not impair the displacement of the other cover elements 112, for the fastening of which the fastening means 112 are not provided, at least within their intended play.
  • the fastening means 212 are arranged in such a way that they do not impair the displacement of the other cover elements 112, for the fastening of which the fastening means 112 are not provided, at least within their intended play.
  • Embodiments of a cover unit 100 are those
  • the cover unit 100 ' also comprises a plurality of cover elements 112', for example two cover elements 112a 'and 112b'.
  • the cover elements 112 ' also have precision-requiring parts 116, for example attachment points and passages 252 for one
  • Control device in particular for waves and / or for power
  • the cover elements 112 also have edge sections 132 which essentially run along a respective geometric edge contour 134.
  • the respective edge contour 134 encloses a cover surface 136 of the cover elements 112, the respective cover element 112, that is to say, for example, the cover elements 112a ′ and 112b ′, essentially being in their respective cover surface 136, that is to say, for example
  • Cover surface 136a 'and 136b' extend.
  • cover elements 112 ' are essentially planar or essentially flat
  • the respective edge contour 134 for example the edge contours 134a 'and 134b', runs in a respective geometric cover level 332, that is to say for example in geometric cover levels 332a 'and 332b'.
  • the respective cover surface 136 (for example 136a ’and 136b’) runs in the respective geometric cover plane 332 (332a 'and 332b').
  • planar cover elements 112 each have an extension in two directions of extension that are perpendicular to one another in the respective geometric cover plane 332, which is substantially larger, for example at least a factor 10 larger, than an extension of the planar cover element 112 perpendicular to the cover plane 332.
  • a cover part of the planar cover element 112 extends in the geometric cover plane 332, while individual elements can protrude somewhat from the geometric cover plane 332.
  • the slightly protruding elements of the stabilization are bracing elements.
  • an extension of the parts protruding from the geometric cover plane 332, in particular their extension out of the geometric cover plane 332, is substantially smaller than the extension of the cover element 112 in the geometric cover plane 332.
  • the cover part extends in the cover surface 136 and is the essential part of the cover element 112, which at least partially covers the component 120 to be covered.
  • the respective sealing surfaces 174 of the cover elements 112 and the cover sealing surface 222 run at least approximately parallel to the geometric cover planes 332.
  • a cover element 112 for example the cover element 112a ′, is a base cover element 342.
  • the base cover member 342 encompasses the entire cover
  • cover sealing surface 222 runs along the edge section 132 of the base cover element 342.
  • the further cover elements 112 are arranged on the base cover element 342 and are sealingly connected to it.
  • the base cover element 342 has a strut 346.
  • the further cover elements 112, here the cover element 112b ' can be arranged in a sealing manner on the strut 346. In the assembled state and in the assembled state, the further cover elements 112, here the cover element 112b ', are arranged sealingly against the strut 346
  • the strut 346 is formed from individual sealing sections 172.
  • the sealing sections 172 are assembled into a truss 346 in the manner of a truss.
  • its edge contour 134 surrounds a surface, of which only a part is covered by the cover part 336 of the basic cover element 342.
  • further cover elements here for example cover element 112b ', are arranged in a sealing manner against base cover element 342.
  • sealing elements 162 are again provided, which are not shown in the figures.
  • the sealing elements 162 are designed as an elastic seal and in particular as an elastomer seal.
  • a sealing element 232 is also provided for sealing between the cover unit 100 ′, in particular the base cover element 342, and the component 120 to be covered and in particular also to be sealed.
  • This sealing element 232 is also preferably an elastic seal, in particular an elastomer seal.
  • grooves 168 and 236 are provided on the cover elements 112.
  • the cover elements 112 are fastened to the component 120 to be covered with fastening means 212.
  • cover elements 112 are attached directly to the component 120 to be covered.
  • a cover element 112 in particular the base cover element 342, has fastening cutouts 214.
  • the fastening means 212 of the other covering elements 112, for example that of the covering element 112b ′, can reach through from the basic covering element 342 to the component 120 to be covered without being affected. So will the others
  • Cover elements 112 attached directly to the component 120 to be covered.
  • At least some mounting recesses 214 are in the
  • a sealing section 172 which partially forms the strut 146, has a bulge in the region of the fastening recess 214.
  • the corresponding fastening means 212 can then connect the cover element 112 and the component 120 to be sealed directly to one another when bulging past the base cover element 342
  • fastening means 212 is arranged in the vicinity of the sealing section 172, so that its action for sealing acts in the immediate vicinity of the covering section 172.
  • the cover elements 112 are formed from plastic.
  • a holding element 352 is also provided in this exemplary embodiment.
  • the holding element 352 has parts of the control device and is in particular to be precisely aligned to parts 116 of at least one cover element 112, for example of the cover element 112b ', which require precision.
  • the holding element 352 is made in particular of metal.
  • the holding element 352 is fastened with corresponding fastening means 212 directly to the component 120 to be covered.
  • the cover elements 112 have corresponding fastenings
  • the holding element 352 is provided for suspending the component 120 to be covered.
  • the cover elements 112 ' are essentially planar, with corresponding geometric cover planes 332 preferably running at least approximately perpendicular to one another.
  • the essentially planar cover elements 112 ′ extend essentially transversely, preferably essentially perpendicular, to the sealing pressing direction 178.
  • the various cover elements 112 can be moved relative to one another with play and thus the individual precision-requiring parts 116 can be precisely arranged without the precise alignment of another precision-requiring part 116 being impaired thereby.
  • cover elements 112 are connected directly to the component 120 to be covered and fastened thereon.
  • the one basic cover element 342 is provided, which is the only one that seals with its cover sealing surface 222 with respect to the component 120 to be covered and sealed.
  • Cover elements 112 are sealingly arranged on the base cover element 342.
  • variants of the exemplary embodiments provide that individual configurations of one exemplary embodiment are combined with configurations and features of the other exemplary embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne une unité de recouvrement. L'invention vise à améliorer l'unité de recouvrement pour un composant à recouvrir, en particulier pour un carter de moteur. L'unité de recouvrement comprend plusieurs éléments de recouvrement. Plusieurs ou tous les éléments de recouvrements comprennent respectivement au moins une partie demandant de la précision. L'invention propose que chacun des éléments de recouvrement soit disposé respectivement sur au moins un autre élément de recouvrement dans un état de montage avec du jeu et les éléments de recouvrement sont étanchéifiés les uns à l'encontre des autres.
PCT/EP2019/083418 2018-12-21 2019-12-03 Unité de recouvrement WO2020126455A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018133460.5 2018-12-21
DE102018133460.5A DE102018133460A1 (de) 2018-12-21 2018-12-21 Abdeckungseinheit

Publications (1)

Publication Number Publication Date
WO2020126455A1 true WO2020126455A1 (fr) 2020-06-25

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Application Number Title Priority Date Filing Date
PCT/EP2019/083418 WO2020126455A1 (fr) 2018-12-21 2019-12-03 Unité de recouvrement

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DE (1) DE102018133460A1 (fr)
WO (1) WO2020126455A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212761A1 (fr) * 2022-01-14 2023-07-19 ZF CV Systems Europe BV Joint d'étanchéité pour un composant de véhicule

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