EP3976947B1 - Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head - Google Patents

Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head Download PDF

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Publication number
EP3976947B1
EP3976947B1 EP20709218.0A EP20709218A EP3976947B1 EP 3976947 B1 EP3976947 B1 EP 3976947B1 EP 20709218 A EP20709218 A EP 20709218A EP 3976947 B1 EP3976947 B1 EP 3976947B1
Authority
EP
European Patent Office
Prior art keywords
fixing
cylinder head
face
notch
arrangement according
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP20709218.0A
Other languages
German (de)
French (fr)
Other versions
EP3976947A1 (en
Inventor
Paulo Da Silva
Riowen HEDOUX
Thomas VENEZIANI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Nissan Motor Co Ltd
Original Assignee
Renault SAS
Nissan Motor Co Ltd
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Publication date
Application filed by Renault SAS, Nissan Motor Co Ltd filed Critical Renault SAS
Publication of EP3976947A1 publication Critical patent/EP3976947A1/en
Application granted granted Critical
Publication of EP3976947B1 publication Critical patent/EP3976947B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10078—Connections of intake systems to the engine

Definitions

  • the present invention relates to an internal combustion engine.
  • the present invention also relates to a motor vehicle equipped with a combustion engine with a water/air heat exchanger at the intake
  • the present invention relates more particularly to fixing a casing at an angle to a heat engine wall, in particular a wall of a heat engine cylinder head.
  • a motor vehicle is experiencing more and more constraints to reduce the size of its equipment for reasons of aesthetics or passenger comfort.
  • the vehicle equipped with a thermal engine also called an internal combustion engine, comprises an engine compartment in which is housed a powertrain comprising the engine and its elements or accessories, the dimensions of which are increasingly reduced, resulting in research into improvements in terms of compactness of the engine and its elements or accessories.
  • a heat engine comprises, in known manner, a cylinder block on which a cylinder head is mounted.
  • a cylinder head In said cylinder head are dug air intake ducts which lead to the cylinders.
  • the cylinder head has a face called “intake” against which is fixed an intake distributor capable of directing air or intake gases towards the intake ducts hollowed out in the cylinder head and connected with the cylinders, and a face called “exhaust” against which is fixed an exhaust manifold to recover the burnt gases resulting from the combustion in the cylinders of the engine.
  • the air and/or the intake gases are directed towards the intake manifold having been compressed beforehand by the passage of a compressor which is for example the compression stage of a turbocharger.
  • a cooler stage is installed in the air intake circuit upstream of the cylinder head according to the direction of circulation of the intake air.
  • This cooler stage comprises, for example, an air/water exchanger through which the hot compressed air gives up part of its heat to water or to a cooling liquid.
  • the heat exchanger is housed in a casing which is extended downstream by a fixing flange in the direction of circulation of the intake air, forming a chamber with for example a recess in the cylinder head. Said chamber is part of an intake manifold plenum.
  • crankcase is fixed against the intake face of the cylinder head thanks to the flange.
  • the fixing of this casing must respond to strong mechanical constraints which require parts of great rigidity in metallic material such as steel or steel alloy.
  • said casing is fixed in an oblique direction with respect to the intake face of the cylinder head.
  • Said intake face extends substantially along a vertical plane.
  • the publication DE102014217314-A1 discloses a fixing of a housing against an intake face of a cylinder head of a heat engine, said fixing comprises two support walls substantially orthogonal to each other which are fixed in abutment against two orthogonal surfaces of the cylinder head .
  • a problem with this attachment is the need for two orthogonal bearing surfaces at an upper end of the cylinder head, which can lead to an extra thickness of said upper end of the cylinder head.
  • Another problem is that the fixing is part of the heat exchanger casing which leads to an increase in engine weight.
  • This fixing requires an arrangement close to the upper end of the yoke, a second support surface on the yoke perpendicular to a first support or fixing surface which is parallel to the fixing sidewalk or to the inlet face of the cylinder head.
  • the object of the invention is to remedy these problems and one of the objects of the invention is an arrangement for fixing at an angle a flange for fixing a casing of an engine element to a cylinder head.
  • the present invention relates more particularly to an arrangement for fixing at an angle a flange for fixing a casing of a heat engine element to a fixing wall of a cylinder head of said engine, said cylinder head comprising a fixing curb against which is fixed to the support of the fixing flange by means of a fixing device to a cylinder head,
  • said fixing device comprises a guide and fixing insert mounted in abutment against the wall of a notch dug in the cylinder head from the face of the fixing sidewalk.
  • the fixing device comprises a guide insert and fixing mounted bearing against the wall of a notch cut into the cylinder head from the side of the fixing curb.
  • Said fixing device is capable of withstanding the stresses of tightening or fixing the flange against the cylinder head.
  • the notch may be a countersink hollowed out from the face of the cylinder head fixing sidewalk, which makes it possible to precisely fix the positioning of said device, in particular by avoiding the thin zones of the cylinder head wall.
  • the length of the tubular duct of the fixing device is less than the length of the passage channel of the flange to ensure that the flange is maintained under pressure against the cylinder head.
  • top/bottom refer to an orthonormal frame of reference of the motor vehicle, with two horizontal axes in the plane of the vehicle passing for example through the axles of said vehicle, and a vertical axis orthogonal to said plane facing upwards, for example from the engine towards the vehicle's engine hood.
  • the invention proposes an arrangement for fixing an element of a thermal or internal combustion engine of a motor vehicle at an angle to said engine.
  • THE figures 1 and 2 have a cylinder head 15 of a heat engine and in particular an intake face 14 of said cylinder head 15.
  • an inlet distributor is mounted against the cylinder head to cover the inlet mouth of the cylinder head.
  • Said intake distributor is formed by a fixing flange 19 which allows the fixing of a casing 42 of an element or engine accessory to the cylinder head, here said element is a heat exchanger 11 water / air as represented in there figure 4 .
  • the description which follows describes an oblique fixing of the casing 42 of the heat exchanger 11 in particular of the fixing flange 19 of the said casing, thanks to a fixing means, against the face of intake 14 of the cylinder head 15 of the heat engine, that is to say that the axis of flow of the intake air is oblique with respect to the plane of the intake face 14 of the cylinder head;
  • the fixing axis of the fixing means for example a screw, is also oblique with respect to the plane of the intake face 14 of the cylinder head.
  • the angle formed between said fixing axis and the axis orthogonal to the plane of the intake face of the cylinder head is less than 45°, in particular between 20° and 45°.
  • a heat engine of a motor vehicle is associated with an air intake circuit. Said circuit conducts fresh air picked up at the level of the front face of the motor vehicle towards the engine. Air passes through engine components which may include an air filter, intake valve, compression stage which can be the compressor of a turbocharger. The compression of the air can raise its temperature and it is known to add a passage through a heat exchanger generally of the air-water type to reduce the temperature of the intake air before its admission into the engine. The air can also be mixed with recirculated exhaust gases taken from an exhaust circuit, which increases the temperature of the air-recirculated intake gas mixture. Mixing is generally carried out upstream, depending on the direction of air circulation, of the heat exchanger.
  • the intake air brought to a high temperature during compression or by mixing with recirculated gases passes through the heat exchanger 11 of the water/air type known under the English name of "WaterCAC" to reduce its temperature before its injection into the engine according to figure 4 .
  • the heat exchanger is housed in a casing 42 which is fixed against the intake face 14 of the cylinder head 15.
  • the housing 42 of the exchanger 11 is fixed at an angle against said substantially vertical intake face 14 of the engine.
  • the axis of the intake air flow is oblique with respect to the intake face 14 of the cylinder head as shown in the figure 4 .
  • the flow of the intake air takes place in a direction A1 from the outside towards the cylinder head, said direction A1 makes an acute angle with the axis orthogonal to the plane of the intake face 14 of the cylinder head 15, less than 45°, in particular between 20° and 45°.
  • the cylinder head 15 is schematically parallelepipedic in shape with an inlet face 14 flat and vertical.
  • the exchanger housing 42 is thus fixed at an angle against the inlet face 14 and here near the upper end 12 of said inlet face 14 by means of a fixing flange 19.
  • the fixing flange 19 comprises a bearing face 20 facing the inlet face 14 of the cylinder head, and an opposite outer face 21 which is oblique with respect to said bearing face 20.
  • Said bearing face 20 is intended to bear against a fixing sidewalk 30 which has a flat face substantially parallel to the intake face 14 of the cylinder head.
  • the casing 42 is fixed to said outer face 21 of the flange.
  • the flange 19 thus delimits a chamber 18 which is part of an intake plenum of the engine intake distributor.
  • the fixing flange 19 is attached to the exchanger casing 42 for example by clipping.
  • the fixing flange 19 is fixed against the cylinder head by means of fixing means such as screws, arranged at the edge of the support face of the flange.
  • the fixing axes for said fixing means at the upper end of the flange 19 are at an angle with respect to the bearing face 20, and orthogonal to the said bearing face 20 at the edges sides and at the lower end.
  • the fixing flange 19 is made of a light material which may be plastic.
  • the plastic does not have sufficient rigidity to guarantee the fixing at an angle of the flange 19 with the exchanger casing, against the cylinder head 15.
  • the invention proposes a mounting arrangement 10 of the mounting flange 19, in the upper part of said flange, and of the yoke 15 as shown in figure 1 And 3 .
  • the fixing of the flange to the cylinder head is carried out by means of a fixing device which comprises fixing means such as screws, the axis of which is at an angle with respect to an axis orthogonal to the plane of the intake face 14 of the cylinder head 15.
  • an oblique binding on a vertical support face here the intake face 14 introduces a mechanical stress along the axis of the binding.
  • Said stress is composed of a stress along an axis orthogonal to the bearing face 20 and of a stress parallel to said bearing face which can lead to deformations of the parts. It is necessary to have a device for stiffening the attachment of the flange 19 to the cylinder head.
  • the yoke 15 comprises at least one notch 100, preferably two notches as shown in picture 2 , which are dug from the side of the fixing sidewalk 30. Said notches 100 can be countersinks.
  • the notch 100 has a bearing section 101 which may be rectangular in the bottom of the notch, stretching along the longitudinal axis X of the yoke 15, and a depth of the order of 2 to 5mm.
  • the support section 101 of the notch is substantially parallel to the intake face 14 of the cylinder head 15.
  • the notch has a lateral bearing face 102 according to the depth of the notch, orthogonal to the bearing section 101.
  • the lateral bearing face 102 is arranged at the lower end of the notch 100 and facing upwards. of the cylinder head.
  • said bearing section 101 and said lateral bearing face 102 are obtained by machining.
  • Obtaining the support section and the lateral support face orthogonal to said support section can be carried out during the same cycle of operations as the entire intake face with the same tool guide reference, which facilitates the machining operation of the two surfaces and improves the precision of obtaining said surfaces.
  • the fixing device 120 comprises a guide and fixing insert 110 which makes it possible to facilitate the assembly and the fixing of said flange 19 against the fixing sidewalk 30 of the cylinder head.
  • the insert 110 comprises a screwing base 111 that is substantially parallelepipedal and mounted in abutment against the bearing section 101 of the notch 100.
  • Said screwing base 111 comprises a bearing surface 115 which can be square or rectangular in contact with the support section 101.
  • the thickness of the screwing base 111 is equal to or even slightly greater than the depth of the notch 100 in order to properly control the contact and the support of the fixing flange 19 against the fixing sidewalk 30 of the cylinder head, in particular to control the crushing of a seal (not shown) arranged between said flange 19 and the curb 30.
  • Said screwing base 111 comprises a through hole 116 whose axis coincides with the axis of the screwing hole 103 emerging from the support section 101 of the notch 100, once the screwing base of the insert 110 mounted against the cylinder head, in the housing of the notch.
  • the screwing base 111 comprises a square or rectangular frontal bearing face 115 mounted in abutment against the bearing section 101.
  • the surfaces of the frontal bearing face 115 of the screwing base can be equal to the surface of the support section 101 of notch 100.
  • the insert 110 comprises a lateral bearing face 112 orthogonal to the front bearing face 115, which is mounted in abutment against the lateral bearing face 102 of the notch 100 which faces the top of the cylinder head.
  • the front 115 and lateral 112 bearing faces of the screw base 111 facing respectively the bearing section 101 and the lateral bearing face 102 of the notch 100 are machined .
  • the insert 110 also comprises as shown in figure 5 a guide duct 24 for mounting and holding the fixing flange 19.
  • the guide duct 24 is formed by a tubular duct 25 which extends from the screwing base 111, therefore substantially from the face of the fixing sidewalk 30, along an axis coinciding with the axis of the through hole 116.
  • the tubular conduit 25 is cylindrical and straight. It has an internal section 26 of cylindrical passage at least equal to the section of the through hole 116.
  • the tubular guide conduit cooperates with the fixing flange 19 of the exchanger, which comprises a passage channel capable of receiving the cylindrical tubular conduit 25.
  • the outer diameter of the tubular conduit 25 is substantially equal to or slightly less than the diameter of the section of the passage channel to the nearest assembly clearance.
  • the length of the tubular duct 25 is slightly less than the length of the passage channel of the fixing flange 19 of the exchanger housing 42.
  • the insert 110 is cylindrical and tubular with a cylindrical screwing base 111 housed in the notch 100.
  • the cylindrical insert 110 has a flat front bearing face 115 mounted to bear against the bearing section 101 of the notch.
  • the axis of the cylindrical insert 110 is not orthogonal to the front support face 115.
  • the axis orthogonal to the front support face 115 forms an acute angle with the axis of the cylindrical insert 110.
  • the screwing base 111 comprises a through hole 116 whose axis coincides with the axis of the cylindrical insert 110.
  • the length of the screw base and substantially equal to the depth of the notch 100.
  • the cylindrical screwing base 111 is extended by the tubular conduit 25 from the face of the fixing sidewalk 30, said cylindrical screwing base 110 and the tubular conduit 25 being coaxial.
  • the outer diameters of the cylindrical screwing base 111 and of the tubular conduit 25 are equal to facilitate the production of the insert 110.
  • the cylindrical screwing base 111 comprises a flat 114 which is orthogonal to the front bearing face 115.
  • the flat 114 is intended to bear against the lateral bearing face 102 of the notch.
  • the insert 110 is mounted in abutment against the cylinder head 15 in such a way that the parallelepipedic or cylindrical screwing base 110 is housed in the notch 100.
  • the front bearing face 115 is mounted to bear against the bearing section 101 of the notch 100.
  • the lateral support wall 112 or the flat 114 is mounted in abutment against the lateral support face 102 of the notch 100 facing the top of the cylinder head.
  • the fixing flange 19 of the exchanger casing is mounted surrounding the tubular duct 25 and the assembly is then assembled against the cylinder head by screwing a bolt around a stud 51 driven into the screw hole 103.
  • the flange 19 is held by said tubular conduit 25 against the yoke 15.
  • the fixing device 120 is made of metallic material with sufficient rigidity of the order of 30,000 to 200,000 N/mm.
  • the fixing arrangement allows the oblique fixing of a fixing flange of a crankcase against the intake face of the cylinder head while ensuring on the one hand sufficient rigidity and on the other hand a ease of assembly.
  • the guide insert prevents assembly errors.
  • Said arrangement may or may not be arranged at a high end of the yoke.
  • the representations show a fixing on the edge of the upper end of the cylinder head, but this can be arranged lower on the intake face of the cylinder head.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un moteur à combustion interne.The present invention relates to an internal combustion engine.

La présente invention concerne également un véhicule automobile équipé d'un moteur thermique avec un échangeur de chaleur eau/air à l'admissionThe present invention also relates to a motor vehicle equipped with a combustion engine with a water/air heat exchanger at the intake

La présente invention concerne plus particulièrement une fixation d'un carter en biais sur une paroi de moteur thermique, notamment une paroi d'une culasse de moteur thermique.The present invention relates more particularly to fixing a casing at an angle to a heat engine wall, in particular a wall of a heat engine cylinder head.

Etat de la techniqueState of the art

Un véhicule automobile connait de plus en plus de contraintes de réduction d'encombrement de ses équipements pour des raisons d'esthétique ou de confort des passagers. En particulier, le véhicule équipé d'un moteur thermique appelé aussi à combustion interne comporte un compartiment moteur dans lequel est logé un groupe motopropulseur comprenant le moteur et ses éléments ou accessoires, dont les dimensions sont de plus en plus réduites entraînant des recherches d'améliorations en termes de compacité du moteur et de ses éléments ou accessoires.A motor vehicle is experiencing more and more constraints to reduce the size of its equipment for reasons of aesthetics or passenger comfort. In particular, the vehicle equipped with a thermal engine, also called an internal combustion engine, comprises an engine compartment in which is housed a powertrain comprising the engine and its elements or accessories, the dimensions of which are increasingly reduced, resulting in research into improvements in terms of compactness of the engine and its elements or accessories.

Ainsi il est prévu d'optimiser l'espace du compartiment moteur d'une part en réduisant le volume du moteur et de ses éléments ou accessoires et d'autre part en agençant de façon astucieuse le moteur et les accessoires entre eux.Thus it is planned to optimize the space of the engine compartment on the one hand by reducing the volume of the engine and its elements or accessories and on the other hand by cleverly arranging the engine and the accessories between them.

Un moteur thermique comprend de manière connue un carter-cylindres sur lequel est monté une culasse. Dans ladite culasse sont creusés des conduits d'admission d'air qui mènent à des cylindres. La culasse présente une face dite « admission » contre laquelle est fixé un répartiteur d'admission apte à diriger de l'air ou des gaz d'amission vers les conduits d'admission creusés dans la culasse et connectés avec les cylindres, et une face dite « échappement » contre laquelle est fixé un collecteur d'échappement pour récupérer les gaz brûlés issus de la combustion dans les cylindres du moteur.A heat engine comprises, in known manner, a cylinder block on which a cylinder head is mounted. In said cylinder head are dug air intake ducts which lead to the cylinders. The cylinder head has a face called "intake" against which is fixed an intake distributor capable of directing air or intake gases towards the intake ducts hollowed out in the cylinder head and connected with the cylinders, and a face called "exhaust" against which is fixed an exhaust manifold to recover the burnt gases resulting from the combustion in the cylinders of the engine.

L'air et/ou les gaz d'admission sont dirigés vers le répartiteur d'admission en ayant été au préalable compressés au passage d'un compresseur qui est par exemple l'étage de compression d'un turbocompresseur. Afin d'améliorer l'efficacité et le rendement du moteur, l'air d'admission est refroidi avant son admission dans les cylindres du moteur. Ainsi un étage de refroidisseur est installé dans le circuit d'admission d'air en amont de la culasse selon le sens de circulation de l'air d'admission. Cet étage de refroidisseur comprend par exemple un échangeur air/eau par lequel l'air compressé chaud cède une partie de sa chaleur à de l'eau ou à un liquide de refroidissement. L'échangeur de chaleur est logé dans un carter qui est prolongé en aval par une bride de fixation selon le sens de circulation de l'air d'admission, formant une chambre avec par exemple un renfoncement de la culasse. Ladite chambre est partie d'un plénum de répartiteur d'admission.The air and/or the intake gases are directed towards the intake manifold having been compressed beforehand by the passage of a compressor which is for example the compression stage of a turbocharger. To improve engine efficiency and performance, intake air is cooled before it enters the engine cylinders. Thus a cooler stage is installed in the air intake circuit upstream of the cylinder head according to the direction of circulation of the intake air. This cooler stage comprises, for example, an air/water exchanger through which the hot compressed air gives up part of its heat to water or to a cooling liquid. The heat exchanger is housed in a casing which is extended downstream by a fixing flange in the direction of circulation of the intake air, forming a chamber with for example a recess in the cylinder head. Said chamber is part of an intake manifold plenum.

Pour réduire le poids du moteur, le carter est fixé contre la face d'admission de la culasse grâce à la bride. La fixation de ce carter doit répondre à des contraintes mécaniques fortes qui nécessitent des pièces de grande rigidité en matériau métallique comme de l'acier ou d'alliage d'acier.To reduce the weight of the engine, the crankcase is fixed against the intake face of the cylinder head thanks to the flange. The fixing of this casing must respond to strong mechanical constraints which require parts of great rigidity in metallic material such as steel or steel alloy.

De plus, pour optimiser l'occupation de l'espace du compartiment moteur, ledit carter est fixé selon une direction oblique par rapport à la face d'admission de la culasse. Ladite face d'admission s'étend sensiblement selon un plan vertical.In addition, to optimize the occupation of the space of the engine compartment, said casing is fixed in an oblique direction with respect to the intake face of the cylinder head. Said intake face extends substantially along a vertical plane.

La publication DE102014217314-A1 divulgue une fixation d'un carter contre une face d'admission d'une culasse de moteur thermique, ladite fixation comprend deux parois d'appui sensiblement orthogonales l'une de l'autre qui sont fixées en appui contre deux surfaces orthogonales de la culasse.The publication DE102014217314-A1 discloses a fixing of a housing against an intake face of a cylinder head of a heat engine, said fixing comprises two support walls substantially orthogonal to each other which are fixed in abutment against two orthogonal surfaces of the cylinder head .

Un problème de cette fixation est une nécessité de deux surfaces d'appui orthogonales à une extrémité haute de la culasse, ce qui peut entraîner une surépaisseur de ladite extrémité haute de culasse.A problem with this attachment is the need for two orthogonal bearing surfaces at an upper end of the cylinder head, which can lead to an extra thickness of said upper end of the cylinder head.

Un autre problème est que la fixation est partie du carter d'échangeur ce qui entraine une augmentation de poids du moteur.Another problem is that the fixing is part of the heat exchanger casing which leads to an increase in engine weight.

Un autre problème est que cette fixation nécessite une disposition à proximité de l'extrémité haute de la culasse, une seconde surface d'appui sur la culasse perpendiculaire à une première surface d'appui ou de fixation qui est parallèle au trottoir de fixation ou à la face d'admission de la culasse.Another problem is that this fixing requires an arrangement close to the upper end of the yoke, a second support surface on the yoke perpendicular to a first support or fixing surface which is parallel to the fixing sidewalk or to the inlet face of the cylinder head.

Le but de l'invention est de remédier à ces problèmes et un des objets de l'invention est un agencement de fixation en biais d'une bride de fixation d'un carter d'un élément du moteur, à une culasse.The object of the invention is to remedy these problems and one of the objects of the invention is an arrangement for fixing at an angle a flange for fixing a casing of an engine element to a cylinder head.

Présentation de l'inventionPresentation of the invention

La présente invention concerne plus particulièrement un agencement de fixation en biais d'une bride de fixation d'un carter d'un élément de moteur thermique à une paroi de fixation d'une culasse dudit moteur, ladite culasse comprenant un trottoir de fixation contre lequel est fixé en appui la bride de fixation grâce à un dispositif de fixation à une culasse,The present invention relates more particularly to an arrangement for fixing at an angle a flange for fixing a casing of a heat engine element to a fixing wall of a cylinder head of said engine, said cylinder head comprising a fixing curb against which is fixed to the support of the fixing flange by means of a fixing device to a cylinder head,

Caractérisé en ce que ledit dispositif de fixation comprend un insert de guidage et de fixation monté en appui contre la paroi d'une entaille creusée dans la culasse depuis la face du trottoir de fixation.Characterized in that said fixing device comprises a guide and fixing insert mounted in abutment against the wall of a notch dug in the cylinder head from the face of the fixing sidewalk.

De manière avantageuse, le dispositif de fixation comprend un insert de guidage et de fixation monté en appui contre la paroi d'une entaille creusée dans la culasse depuis la face du trottoir de fixation. Ledit dispositif de fixation est apte à supporter les contraintes de serrage ou de fixation de la bride contre la culasse. L'entaille peut être un lamage creusé depuis la face du trottoir de fixation de la culasse ce qui permet de fixer de façon précise le positionnement dudit dispositif notamment en évitant les zones de faible épaisseur de la paroi de culasse.Advantageously, the fixing device comprises a guide insert and fixing mounted bearing against the wall of a notch cut into the cylinder head from the side of the fixing curb. Said fixing device is capable of withstanding the stresses of tightening or fixing the flange against the cylinder head. The notch may be a countersink hollowed out from the face of the cylinder head fixing sidewalk, which makes it possible to precisely fix the positioning of said device, in particular by avoiding the thin zones of the cylinder head wall.

Selon d'autres caractéristiques de l'invention :

  • l'insert comprend un conduit tubulaire s'étendant en biais depuis la face du trottoir de fixation de la culasse.
According to other characteristics of the invention:
  • the insert comprises a tubular duct extending obliquely from the face of the cylinder head fixing sidewalk.

De manière avantageuse, l'insert de fixation comprend un conduit tubulaire s'étendant en biais depuis la face du trottoir de fixation de la culasse, ledit conduit tubulaire étant apte à coopérer avec la bride de fixation pour faciliter le montage de ladite bride contre la culasse et assurer la fixation de ladite bride contre le trottoir de fixation de la culasse.

  • l'entaille comporte une section d'appui parallèle au trottoir de fixation.
Advantageously, the fixing insert comprises a tubular duct extending obliquely from the face of the yoke fixing sidewalk, said tubular duct being capable of cooperating with the fixing flange to facilitate the fitting of said flange against the cylinder head and ensure the fixing of said flange against the cylinder head fixing sidewalk.
  • the notch has a support section parallel to the fixing curb.

De manière avantageuse, l'entaille ou le lamage comprend une section d'appui dans le fond du lamage parallèle au trottoir de fixation de la culasse pour une bonne répartition et prise en compte des contraintes de fixation de la bride contre la culasse.

  • l'entaille comporte une face d'appui latérale orthogonale à la section d'appui et en extrémité basse de l'entaille.
Advantageously, the notch or counterbore comprises a bearing section in the bottom of the counterbore parallel to the yoke fixing sidewalk for good distribution and taking into account the constraints of fixing the flange against the yoke.
  • the notch has a lateral bearing surface orthogonal to the bearing section and at the lower end of the notch.

De manière avantageuse, l'entaille comporte une face latérale d'appui orthogonale à la section frontale d'appui et agencée à une extrémité basse de l'entaille pour une bonne répartition et prise en compte des contraintes de fixation de la bride contre la culasse.

  • l'insert comprend une base de vissage adaptée pour être logée dans l'entaille.
Advantageously, the notch comprises a lateral support face orthogonal to the front support section and arranged at a lower end of the notch for good distribution and taking into account the constraints of fixing the flange against the cylinder head .
  • the insert includes a screw base adapted to be housed in the notch.

De manière avantageuse, le dispositif de fixation comprend une base de vissage adaptée pour être logée dans l'entaille. A cet effet, les dimensions de la base sont sensiblement inférieures à celles de l'entaille.

  • la base de vissage de l'insert comporte une face d'appui frontale et une face d'appui latérale montées en appui respectivement contre une section d'appui et contre une face d'appui latérale de l'entaille.
Advantageously, the fixing device comprises a screw base adapted to be housed in the notch. For this purpose, the dimensions of the base are substantially smaller than those of the notch.
  • the screwing base of the insert comprises a front bearing face and a lateral bearing face mounted in bearing respectively against a bearing section and against a lateral bearing face of the notch.

De manière avantageuse, la base de vissage de l'insert doit être en contact au moins sur la section d'appui et la face latérale d'appui de l'entaille pour une transmission des efforts.

  • la base de vissage présente une forme parallélépipédique.
Advantageously, the screw base of the insert must be in contact at least on the bearing section and the lateral bearing face of the notch for transmission of forces.
  • the screwing base has a parallelepipedal shape.

De manière avantageuse et selon un mode de réalisation, la base de l'insert présente une forme parallélépipédique pour assurer le contact et l'appui de la face frontale et la face latérale d'appui contre respectivement la section d'appui et la face d'appui de l'entaille.

  • la base de vissage est cylindrique.
Advantageously and according to one embodiment, the base of the insert has a parallelepipedal shape to ensure contact and support of the front face and the lateral support face respectively against the support section and the face of the insert. support of the notch.
  • the screw base is cylindrical.

De manière avantageuse, la base de l'insert présente une forme cylindrique facile à obtenir.

  • la base de vissage cylindrique comprend un méplat.
Advantageously, the base of the insert has a cylindrical shape which is easy to obtain.
  • the cylindrical screw base includes a flat.

De manière avantageuse, la base cylindrique comprend un méplat en tant que deuxième paroi d'appui qui est montée en appui contre la deuxième face d'appui de l'entaille, assurant ainsi une transmission d'efforts de fixation de la bride contre la culasse.

  • la profondeur de l'entaille est inférieure ou égale à l'épaisseur de la base de vissage de l'insert.
Advantageously, the cylindrical base comprises a flat as a second bearing wall which is mounted bearing against the second bearing face of the notch, thus ensuring a transmission of forces for fixing the flange against the cylinder head .
  • the depth of the notch is less than or equal to the thickness of the screw base of the insert.

De manière avantageuse, la profondeur de l'entaille est inférieure ou égale à l'épaisseur de la base de vissage de l'insert, ce qui peut entraîner un léger dépassement de la base de vissage de l'insert pour permettre un contrôle de l'écrasement d'un joint d'étanchéité disposé entre la bride et la culasse.

  • la base de vissage comprend un orifice traversant de révolution selon un axe s'étendant en biais par rapport à la face d'appui frontale.
Advantageously, the depth of the notch is less than or equal to the thickness of the screwing base of the insert, which can cause a slight protrusion of the screwing base of the insert to allow control of the crushing of a seal placed between the flange and the cylinder head.
  • the screwing base comprises a through hole of revolution along an axis extending obliquely relative to the front bearing face.

De manière avantageuse, un orifice est percé dans le lamage depuis la première face d'appui. Ledit orifice est destiné à recevoir une vis de fixation traversant la base de l'insert de fixation.

  • la bride comprend un canal de passage dans une paroi de fixation en extrémité haute, adapté pour entourer le conduit tubulaire.
Advantageously, an orifice is drilled in the counterbore from the first bearing face. Said orifice is intended to receive a fixing screw passing through the base of the fixing insert.
  • the flange comprises a passage channel in a fixing wall at the top end, adapted to surround the tubular duct.

De manière avantageuse, la bride de fixation comporte un canal de passage creusé au travers d'une paroi de fixation en extrémité haute de la bride et destiné à loger le conduit tubulaire du dispositif de fixation pour faciliter le montage de bride de fixation et donc le carter de l'élément du moteur contre la culasse.

  • la longueur du conduit tubulaire est inférieure à la longueur du canal de passage de la bride.
Advantageously, the fixing flange comprises a passage channel dug through a fixing wall at the top end of the flange and intended to accommodate the tubular conduit of the fixing device to facilitate the mounting of the fixing flange and therefore the engine element housing against the cylinder head.
  • the length of the tubular duct is less than the length of the passage channel of the flange.

De manière avantageuse, la longueur du conduit tubulaire du dispositif de fixation est inférieure à la longueur du canal de passage de la bride pour assurer un maintien en pression de la bride contre la culasse.Advantageously, the length of the tubular duct of the fixing device is less than the length of the passage channel of the flange to ensure that the flange is maintained under pressure against the cylinder head.

Brève description des figuresBrief description of figures

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés sur les dessins annexés, dans lesquels :

  • [fig.1] est une vue schématique de face d'une face admission d'une culasse.
  • [fig.2] est une vue schématique d'une culasse de moteur thermique.
  • [fig.3] est une vue de coupe transversale de la culasse avec une bride de fixation monté contre la culasse.
  • [fig.4] est une vue schématique d'un insert de fixation et de rigidification.
  • [fig.5] est une vue de devant tournée vers la culasse d'un insert de fixation selon un mode de réalisation.
  • [fig.6] est une vue de coupe transversale de l'agencement de fixation selon un mode de réalisation.
  • [fig.7] est une vue schématique d'un insert de fixation et de rigidification.
Other characteristics and advantages of the invention will appear on reading the following description of particular embodiments of the invention given by way of non-limiting examples and represented in the appended drawings, in which:
  • [ fig.1 ] is a schematic front view of an intake side of a cylinder head.
  • [ fig.2 ] is a schematic view of a heat engine cylinder head.
  • [ fig.3 ] is a cross-sectional view of the cylinder head with a mounting flange mounted against the cylinder head.
  • [ fig.4 ] is a schematic view of a fixing and stiffening insert.
  • [ fig.5 ] is a front view facing the cylinder head of a fixing insert according to one embodiment.
  • [ fig.6 ] is a cross-sectional view of the fastening arrangement according to one embodiment.
  • [ fig.7 ] is a schematic view of a fixing and stiffening insert.

Description détaillée des figuresDetailed description of figures

Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires.In the following description, identical reference numerals designate identical parts or parts having similar functions.

Les termes haut/bas se réfèrent à un référentiel orthonormé du véhicule automobile, avec deux axes horizontaux dans le plan du véhicule passant par exemple par les essieux dudit véhicule, et un axe orthogonal vertical audit plan tourné vers le haut, par exemple du moteur vers le capot moteur du véhicule.The terms top/bottom refer to an orthonormal frame of reference of the motor vehicle, with two horizontal axes in the plane of the vehicle passing for example through the axles of said vehicle, and a vertical axis orthogonal to said plane facing upwards, for example from the engine towards the vehicle's engine hood.

L'invention propose un agencement de fixation en biais d'un élément d'un moteur thermique ou à combustion interne de véhicule automobile, audit moteur.The invention proposes an arrangement for fixing an element of a thermal or internal combustion engine of a motor vehicle at an angle to said engine.

Les figures 1 et 2 présentent une culasse 15 d'un moteur thermique et notamment une face admission 14 de ladite culasse 15.THE figures 1 and 2 have a cylinder head 15 of a heat engine and in particular an intake face 14 of said cylinder head 15.

Selon la figure 3, un répartiteur d'admission est monté en appui contre la culasse pour recouvrir la bouche d'admission de la culasse. Ledit répartiteur d'admission est formé par une bride de fixation 19 qui permet la fixation d'un carter 42 d'un élément ou accessoire de moteur à la culasse, ici ledit élément est un échangeur de chaleur 11 eau/air tel que représenté dans la figure 4.According to picture 3 , an inlet distributor is mounted against the cylinder head to cover the inlet mouth of the cylinder head. Said intake distributor is formed by a fixing flange 19 which allows the fixing of a casing 42 of an element or engine accessory to the cylinder head, here said element is a heat exchanger 11 water / air as represented in there figure 4 .

Afin de faciliter la compréhension de l'invention, la description qui suit décrit une fixation en biais du carter 42 de l'échangeur de chaleur 11 notamment de la bride de fixation 19 dudit carter, grâce à un moyen de fixation, contre la face d'admission 14 de la culasse 15 de moteur thermique, c'est-à-dire que l'axe d'écoulement de l'air d'admission est oblique par rapport au plan de la face d'admission 14 de la culasse ; l'axe de fixation du moyen de fixation par exemple une vis est également oblique par rapport au plan de la face d'admission 14 de la culasse. L'angle formé entre ledit axe de fixation et l'axe orthogonal au plan de la face d'admission de la culasse est inférieur à 45° notamment compris entre 20° et 45°. Il peut cependant s'agir d'un carter d'un autre élément ou accessoire du moteur.In order to facilitate the understanding of the invention, the description which follows describes an oblique fixing of the casing 42 of the heat exchanger 11 in particular of the fixing flange 19 of the said casing, thanks to a fixing means, against the face of intake 14 of the cylinder head 15 of the heat engine, that is to say that the axis of flow of the intake air is oblique with respect to the plane of the intake face 14 of the cylinder head; the fixing axis of the fixing means, for example a screw, is also oblique with respect to the plane of the intake face 14 of the cylinder head. The angle formed between said fixing axis and the axis orthogonal to the plane of the intake face of the cylinder head is less than 45°, in particular between 20° and 45°. However, it may be a casing of another element or accessory of the engine.

De manière connue, un moteur thermique de véhicule automobile est associé avec un circuit d'admission d'air. Ledit circuit conduit de l'air frais capté au niveau de la face avant du véhicule automobile vers le moteur. L'air passe par des éléments du moteur qui peuvent comprendre un filtre à air, une vanne d'admission, un étage de compression qui peut être le compresseur d'un turbocompresseur. La compression de l'air peut élever sa température et il est connu d'ajouter un passage par un échangeur de chaleur généralement de type air-eau pour réduire la température de l'air d'admission avant son admission dans le moteur. L'air peut également être mélangé avec des gaz d'échappement recirculés prélevés dans un circuit d'échappement, ce qui augmente la température du mélange air-gaz recirculés d'admission. Le mélange est généralement effectué en amont selon le sens de circulation de l'air, de l'échangeur de chaleur.In known manner, a heat engine of a motor vehicle is associated with an air intake circuit. Said circuit conducts fresh air picked up at the level of the front face of the motor vehicle towards the engine. Air passes through engine components which may include an air filter, intake valve, compression stage which can be the compressor of a turbocharger. The compression of the air can raise its temperature and it is known to add a passage through a heat exchanger generally of the air-water type to reduce the temperature of the intake air before its admission into the engine. The air can also be mixed with recirculated exhaust gases taken from an exhaust circuit, which increases the temperature of the air-recirculated intake gas mixture. Mixing is generally carried out upstream, depending on the direction of air circulation, of the heat exchanger.

L'air d'admission porté à température élevée lors de la compression ou par le mélange avec des gaz recirculés passe par l'échangeur de chaleur 11 de type eau/air connu sous le nom de anglais de «WaterCAC» pour réduire sa température avant son injection dans le moteur selon la figure 4. L'échangeur de chaleur est logé dans un carter 42 qui est fixé en appui contre la face d'admission 14 de la culasse 15.The intake air brought to a high temperature during compression or by mixing with recirculated gases passes through the heat exchanger 11 of the water/air type known under the English name of "WaterCAC" to reduce its temperature before its injection into the engine according to figure 4 . The heat exchanger is housed in a casing 42 which is fixed against the intake face 14 of the cylinder head 15.

Pour optimiser l'encombrement du moteur et de ses éléments ou accessoires installés dans un compartiment moteur du véhicule automobile, le carter 42 de l'échangeur 11 est fixé en biais contre ladite face admission 14 sensiblement verticale du moteur. L'axe de l'écoulement de l'air d'admission est oblique par rapport à la face d'admission 14 de la culasse tel que représenté dans la figure 4. L'écoulement de l'air d'admission se fait selon une direction A1 de l'extérieur vers la culasse, ladite direction A1 fait un angle aigu avec l'axe orthogonal au plan de la face d'admission 14 de la culasse 15, inférieur à 45°notamment compris entre 20° et 45°. Pour faciliter la compréhension de l'invention, la culasse 15 est de façon schématique de forme parallélépipédique avec une face d'admission 14 plane et verticale.To optimize the size of the engine and its elements or accessories installed in an engine compartment of the motor vehicle, the housing 42 of the exchanger 11 is fixed at an angle against said substantially vertical intake face 14 of the engine. The axis of the intake air flow is oblique with respect to the intake face 14 of the cylinder head as shown in the figure 4 . The flow of the intake air takes place in a direction A1 from the outside towards the cylinder head, said direction A1 makes an acute angle with the axis orthogonal to the plane of the intake face 14 of the cylinder head 15, less than 45°, in particular between 20° and 45°. To facilitate understanding of the invention, the cylinder head 15 is schematically parallelepipedic in shape with an inlet face 14 flat and vertical.

Selon les figures 3 et 4, le carter d'échangeur 42 est ainsi fixé en biais contre la face d'admission 14 et ici à proximité de l'extrémité haute 12 de ladite face d'admission 14 grâce à une bride de fixation 19.According to figures 3 and 4 , the exchanger housing 42 is thus fixed at an angle against the inlet face 14 and here near the upper end 12 of said inlet face 14 by means of a fixing flange 19.

La bride de fixation 19 comporte une face d'appui 20 en vis-à-vis de la face d'admission 14 de la culasse, et une face extérieure 21 opposée qui est oblique par rapport à ladite face d'appui 20.The fixing flange 19 comprises a bearing face 20 facing the inlet face 14 of the cylinder head, and an opposite outer face 21 which is oblique with respect to said bearing face 20.

Ladite face d'appui 20 est destinée en appui contre un trottoir 30 de fixation qui présente une face plane sensiblement parallèle à la face d'admission14 de la culasse.Said bearing face 20 is intended to bear against a fixing sidewalk 30 which has a flat face substantially parallel to the intake face 14 of the cylinder head.

Le carter 42 est fixé sur ladite face extérieure 21 de la bride. La bride 19 délimite ainsi une chambre 18 qui est partie d'un plénum d'admission du répartiteur d'admission du moteur. De manière préférentielle, la bride de fixation 19 est rapportée au carter d'échangeur 42 par exemple par clipsage.The casing 42 is fixed to said outer face 21 of the flange. The flange 19 thus delimits a chamber 18 which is part of an intake plenum of the engine intake distributor. Preferably, the fixing flange 19 is attached to the exchanger casing 42 for example by clipping.

La bride de fixation 19 est fixée contre la culasse grâce à des moyens de fixation tels que des vis, agencés en bordure de la face d'appui de la bride. Les axes de fixation pour lesdits moyens de fixation en extrémité haute de la bride 19 sont en biais par rapport à la face d'appui 20, et orthogonaux à ladite face d'appui 20 en bordures latérales et en extrémité basse.The fixing flange 19 is fixed against the cylinder head by means of fixing means such as screws, arranged at the edge of the support face of the flange. The fixing axes for said fixing means at the upper end of the flange 19 are at an angle with respect to the bearing face 20, and orthogonal to the said bearing face 20 at the edges sides and at the lower end.

Pour optimiser le poids du moteur et de ses éléments ou accessoires, la bride de fixation 19 est en matériau léger qui peut être du plastique. Le plastique ne présente cependant pas une rigidité suffisante pour garantir la fixation en biais de la bride 19 avec le carter d'échangeur, contre la culasse 15.To optimize the weight of the engine and its elements or accessories, the fixing flange 19 is made of a light material which may be plastic. However, the plastic does not have sufficient rigidity to guarantee the fixing at an angle of the flange 19 with the exchanger casing, against the cylinder head 15.

L'invention propose un agencement de fixation 10 de la bride de fixation 19, en partie haute de ladite bride, et de la culasse 15 tel que représenté en figures 1 et 3. La fixation de la bride à la culasse est effectuée grâce à un dispositif de fixation qui comprend des moyens de fixation tel que des vis, dont l'axe est en biais par rapport à un axe orthogonal au plan de la face d'admission 14 de la culasse 15.The invention proposes a mounting arrangement 10 of the mounting flange 19, in the upper part of said flange, and of the yoke 15 as shown in figure 1 And 3 . The fixing of the flange to the cylinder head is carried out by means of a fixing device which comprises fixing means such as screws, the axis of which is at an angle with respect to an axis orthogonal to the plane of the intake face 14 of the cylinder head 15.

Il est connu qu'une fixation en biais sur une face d'appui verticale, ici la face d'admission 14, introduit une contrainte mécanique selon l'axe de la fixation. Ladite contrainte est composée d'une contrainte selon un axe orthogonal à la face d'appui 20 et d'une contrainte parallèle à ladite face d'appui qui peuvent conduire à des déformations des pièces. Il est nécessaire de disposer un dispositif de rigidification de la fixation de la bride 19 à la culasse.It is known that an oblique binding on a vertical support face, here the intake face 14, introduces a mechanical stress along the axis of the binding. Said stress is composed of a stress along an axis orthogonal to the bearing face 20 and of a stress parallel to said bearing face which can lead to deformations of the parts. It is necessary to have a device for stiffening the attachment of the flange 19 to the cylinder head.

Selon un mode de réalisation de l'invention, la culasse 15 comprend au-moins une entaille 100, de manière préférentielle deux entailles tels que représentées en figure 2, qui sont creusées depuis la face du trottoir de fixation 30. Lesdites entailles 100 peuvent être des lamages.According to one embodiment of the invention, the yoke 15 comprises at least one notch 100, preferably two notches as shown in picture 2 , which are dug from the side of the fixing sidewalk 30. Said notches 100 can be countersinks.

La description est faite sur une des deux entailles qui sont identiques.The description is made on one of the two notches which are identical.

Selon un mode de réalisation, l'entaille 100 présente une section d'appui 101 qui peut être rectangulaire dans le fond d'entaille, s'étirant selon l'axe longitudinal X de la culasse 15, et une profondeur de l'ordre de 2 à 5mm.According to one embodiment, the notch 100 has a bearing section 101 which may be rectangular in the bottom of the notch, stretching along the longitudinal axis X of the yoke 15, and a depth of the order of 2 to 5mm.

La section d'appui 101 de l'entaille est sensiblement parallèle à la face d'admission 14 de la culasse 15.The support section 101 of the notch is substantially parallel to the intake face 14 of the cylinder head 15.

L'entaille présente une face d'appui latérale 102 selon la profondeur de l'entaille, orthogonale à la section d'appui 101. La face d'appui 102 latérale est disposée en extrémité basse de l'entaille 100 et tournée vers le haut de la culasse.The notch has a lateral bearing face 102 according to the depth of the notch, orthogonal to the bearing section 101. The lateral bearing face 102 is arranged at the lower end of the notch 100 and facing upwards. of the cylinder head.

De manière préférentielle, ladite section d'appui 101 et ladite face d'appui latérale 102 sont obtenues par usinage. L'obtention de la section d'appui et de la face d'appui latérale orthogonale à ladite section d'appui peut être réalisée lors du même cycle d'opérations que toute la face admission avec une même référence de guidage des outils ce qui facilite l'opération d'usinage des deux surfaces et améliore la précision d'obtention desdites surfaces.Preferably, said bearing section 101 and said lateral bearing face 102 are obtained by machining. Obtaining the support section and the lateral support face orthogonal to said support section can be carried out during the same cycle of operations as the entire intake face with the same tool guide reference, which facilitates the machining operation of the two surfaces and improves the precision of obtaining said surfaces.

Au fond de l'entaille 100 est percé un orifice de vissage 103 débouchant de la section d'appui 101 et dont l'axe X1 est sensiblement oblique par rapport au plan de ladite section d'appui 101 et donc de la face d'admission 14 de la culasse.At the bottom of the notch 100 is pierced a screw hole 103 emerging from the support section 101 and whose axis X1 is substantially oblique with respect to the plane of said support section 101 and therefore of the intake face. 14 of the cylinder head.

Selon un mode de réalisation représenté dans les figures 4 et 5, le dispositif de fixation 120 comprend un insert de guidage et de fixation 110 qui permet de faciliter l'assemblage et la fixation de ladite bride 19 contre le trottoir de fixation 30 de la culasse. L'insert 110 comporte une base de vissage 111 sensiblement parallélépipédique et montée en appui contre la section d'appui 101 de l'entaille 100. Ladite base de vissage 111 comporte une face d'appui 115 qui peut être carrée ou rectangulaire en contact avec la section d'appui 101.According to an embodiment represented in the figure 4 And 5 , the fixing device 120 comprises a guide and fixing insert 110 which makes it possible to facilitate the assembly and the fixing of said flange 19 against the fixing sidewalk 30 of the cylinder head. The insert 110 comprises a screwing base 111 that is substantially parallelepipedal and mounted in abutment against the bearing section 101 of the notch 100. Said screwing base 111 comprises a bearing surface 115 which can be square or rectangular in contact with the support section 101.

De manière préférentielle, l'épaisseur de la base de vissage 111 est égale voire légèrement supérieure à la profondeur de l'entaille 100 afin de bien contrôler le contact et l'appui de la bride de fixation 19 contre le trottoir de fixation 30 de la culasse, notamment de contrôler l'écrasement d'un joint d'étanchéité (non représenté) disposé entre ladite bride 19 et le trottoir 30.Preferably, the thickness of the screwing base 111 is equal to or even slightly greater than the depth of the notch 100 in order to properly control the contact and the support of the fixing flange 19 against the fixing sidewalk 30 of the cylinder head, in particular to control the crushing of a seal (not shown) arranged between said flange 19 and the curb 30.

Ladite base de vissage 111 comprend un orifice traversant 116 dont l'axe est confondu avec l'axe de l'orifice de vissage 103 débouchant de la section d'appui 101 de l'entaille 100, une fois la base de vissage de l'insert 110 montée contre la culasse, dans le logement de l'entaille.Said screwing base 111 comprises a through hole 116 whose axis coincides with the axis of the screwing hole 103 emerging from the support section 101 of the notch 100, once the screwing base of the insert 110 mounted against the cylinder head, in the housing of the notch.

La base de vissage 111 comprend une face d'appui frontale 115 carrée ou rectangulaire montée en appui contre la section d'appui 101. Les surfaces de la face d'appui frontale 115 de la base de vissage peut être égale à la surface de la section d'appui 101 de l'entaille 100.The screwing base 111 comprises a square or rectangular frontal bearing face 115 mounted in abutment against the bearing section 101. The surfaces of the frontal bearing face 115 of the screwing base can be equal to the surface of the support section 101 of notch 100.

L'insert 110 comprend une face d'appui latérale 112 orthogonale à la face d'appui frontale 115, qui est montée en appui contre la face d'appui latérale 102 de l'entaille 100 qui est tournée vers le haut de la culasse.The insert 110 comprises a lateral bearing face 112 orthogonal to the front bearing face 115, which is mounted in abutment against the lateral bearing face 102 of the notch 100 which faces the top of the cylinder head.

De manière préférentielle, les faces d'appui frontale 115 et latérale 112 de la base de vissage 111 en vis-à-vis respectivement avec la section d'appui 101 et avec la face d'appui latérale 102 de l'entaille 100 sont usinées.Preferably, the front 115 and lateral 112 bearing faces of the screw base 111 facing respectively the bearing section 101 and the lateral bearing face 102 of the notch 100 are machined .

L'insert 110 comprend également tel que représenté en figure 5 un conduit de guidage 24 pour assurer le montage et le maintien de la bride de fixation 19. De manière préférentielle, le conduit de guidage 24 est formé par un conduit tubulaire 25 qui s'étend depuis la base de vissage 111, donc sensiblement depuis la face du trottoir de fixation 30, selon un axe confondu avec l'axe de l'orifice traversant 116. Le conduit tubulaire 25 est cylindrique et rectiligne. Il présente une section intérieure 26 de passage cylindrique au moins égale à la section de l'orifice traversant 116.The insert 110 also comprises as shown in figure 5 a guide duct 24 for mounting and holding the fixing flange 19. Preferably, the guide duct 24 is formed by a tubular duct 25 which extends from the screwing base 111, therefore substantially from the face of the fixing sidewalk 30, along an axis coinciding with the axis of the through hole 116. The tubular conduit 25 is cylindrical and straight. It has an internal section 26 of cylindrical passage at least equal to the section of the through hole 116.

Le conduit tubulaire de guidage coopère avec la bride de fixation 19 d'échangeur, laquelle comporte un canal de passage apte à accueillir le conduit tubulaire cylindrique 25. De manière préférentielle, le diamètre extérieur du conduit tubulaire 25 est sensiblement égal ou légèrement inférieur au diamètre de la section du canal de passage au jeu de montage près.The tubular guide conduit cooperates with the fixing flange 19 of the exchanger, which comprises a passage channel capable of receiving the cylindrical tubular conduit 25. Preferably, the outer diameter of the tubular conduit 25 is substantially equal to or slightly less than the diameter of the section of the passage channel to the nearest assembly clearance.

De même la longueur du conduit tubulaire 25 est légèrement inférieure à la longueur du canal de passage de la bride de fixation 19 du carter d'échangeur 42.Similarly, the length of the tubular duct 25 is slightly less than the length of the passage channel of the fixing flange 19 of the exchanger housing 42.

Selon un mode préféré de réalisation présenté en figures 6 et 7, l'insert 110 est cylindrique et tubulaire avec une base de vissage cylindrique 111 logée dans l'entaille 100. L'insert cylindrique 110 présente une face plane d'appui frontale 115 montée en appui contre la section d'appui 101 de l'entaille. L'axe de l'insert 110 cylindrique n'est pas orthogonal à la face d'appui frontale 115. L'axe orthogonal à la face d'appui frontale 115 forme un angle aigu avec l'axe de l'insert cylindrique 110.According to a preferred embodiment presented in figures 6 and 7 , the insert 110 is cylindrical and tubular with a cylindrical screwing base 111 housed in the notch 100. The cylindrical insert 110 has a flat front bearing face 115 mounted to bear against the bearing section 101 of the notch. The axis of the cylindrical insert 110 is not orthogonal to the front support face 115. The axis orthogonal to the front support face 115 forms an acute angle with the axis of the cylindrical insert 110.

La base de vissage 111 comporte un orifice traversant 116 dont l'axe est confondu avec l'axe de l'insert 110 cylindrique. La longueur de la base de vissage et sensiblement égale à la profondeur de l'entaille 100.The screwing base 111 comprises a through hole 116 whose axis coincides with the axis of the cylindrical insert 110. The length of the screw base and substantially equal to the depth of the notch 100.

La base de vissage cylindrique 111 est prolongée par le conduit tubulaire 25 à partir de la face du trottoir de fixation 30, ladite base de vissage cylindrique 110 et le conduit tubulaire 25 étant coaxiaux.The cylindrical screwing base 111 is extended by the tubular conduit 25 from the face of the fixing sidewalk 30, said cylindrical screwing base 110 and the tubular conduit 25 being coaxial.

De manière préférentielle, les diamètres extérieurs de la base de vissage 111 cylindrique et du conduit tubulaire 25 sont égaux pour faciliter la réalisation de l'insert 110.Preferably, the outer diameters of the cylindrical screwing base 111 and of the tubular conduit 25 are equal to facilitate the production of the insert 110.

De manière préférentielle, la base de vissage 111 cylindrique comporte un méplat 114 qui est orthogonal à la face d'appui frontale 115. Le méplat 114 est destiné en appui contre la face d'appui latérale 102 de l'entaille.Preferably, the cylindrical screwing base 111 comprises a flat 114 which is orthogonal to the front bearing face 115. The flat 114 is intended to bear against the lateral bearing face 102 of the notch.

L'insert 110 est monté en appui contre la culasse 15 de telle façon que la base de vissage 110 parallélépipédique ou cylindrique soit logée dans l'entaille 100.The insert 110 is mounted in abutment against the cylinder head 15 in such a way that the parallelepipedic or cylindrical screwing base 110 is housed in the notch 100.

La face d'appui frontale 115 est montée en appui contre la section d'appui 101 de l'entaille 100.The front bearing face 115 is mounted to bear against the bearing section 101 of the notch 100.

De même, la paroi latérale d'appui 112 ou le méplat 114 est monté(e) en appui contre la face d'appui 102 latérale de l'entaille 100 tournée vers le haut de la culasse.Similarly, the lateral support wall 112 or the flat 114 is mounted in abutment against the lateral support face 102 of the notch 100 facing the top of the cylinder head.

La bride de fixation 19 du carter d'échangeur est montée entourant le conduit tubulaire 25 et l'ensemble est ensuite assemblé contre la culasse par un vissage d'un boulon autour d'un goujon 51 enfoncé dans l'orifice de vissage 103. La bride 19 est maintenue grâce audit conduit tubulaire 25 contre la culasse 15.The fixing flange 19 of the exchanger casing is mounted surrounding the tubular duct 25 and the assembly is then assembled against the cylinder head by screwing a bolt around a stud 51 driven into the screw hole 103. The flange 19 is held by said tubular conduit 25 against the yoke 15.

De manière préférentielle, le dispositif de fixation 120 est en matière métallique avec une rigidité suffisante de l'ordre de 30000 à 200000N/mm.Preferably, the fixing device 120 is made of metallic material with sufficient rigidity of the order of 30,000 to 200,000 N/mm.

L'objectif est atteint : l'agencement de fixation permet la fixation en biais d'une bride de fixation d'un carter contre la face d'admission de la culasse en assurant d'une part une rigidité suffisante et d'autre part une facilité d'assemblage. L'insert de guidage permet d'éviter des erreurs de montage. Ledit agencement peut être disposé une extrémité haute de la culasse ou non.The objective has been achieved: the fixing arrangement allows the oblique fixing of a fixing flange of a crankcase against the intake face of the cylinder head while ensuring on the one hand sufficient rigidity and on the other hand a ease of assembly. The guide insert prevents assembly errors. Said arrangement may or may not be arranged at a high end of the yoke.

Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de cette prise, décrites ci-dessus à titre d'exemples, elle en embrasse au contraire toutes les variantes.As goes without saying, the invention is not limited solely to the embodiments of this grip, described above as examples, it embraces on the contrary all the variants.

Les représentations montrent une fixation en bordure d'extrémité haute de la culasse mais celle-ci peut être disposée plus bas sur la face d'admission de la culasse.The representations show a fixing on the edge of the upper end of the cylinder head, but this can be arranged lower on the intake face of the cylinder head.

Claims (14)

  1. Arrangement for obliquely fixing a fixing flange (19) of a housing (42) of a thermal engine element to a fixing wall of a cylinder head (15) of said engine, said cylinder head comprising a fixing track (30) against which the fixing flange (19) is fixed in abutment using a fixing device (120),
    characterized in that said fixing device comprises a fixing and guiding insert (110) which is mounted in abutment against the wall of a notch (100) which is formed in the cylinder head from the face of the fixing track (30) .
  2. Fixing arrangement according to Claim 1, characterized in that the insert (110) comprises a tubular conduit (25) which extends in an oblique manner from the face of the fixing track of the cylinder head.
  3. Fixing arrangement according to Claim 1 or 2, characterized in that the notch (100) comprises a support section (101) parallel with the fixing track (30).
  4. Fixing arrangement according to Claim 3, characterized in that the notch (100) comprises a lateral support face (102) which is orthogonal to the support section (101) at the lower end of the counterbore and which is directed toward the upper portion of the cylinder head (15).
  5. Fixing arrangement according to Claim 4, characterized in that the insert (110) has a screwing base (111) which carries the tubular conduit (25) and which is adapted to be accommodated in the notch (100).
  6. Fixing arrangement according to Claim 5, characterized in that the screwing base (111) of the insert comprises a front support face (115) and a lateral support face (112) which are mounted in abutment against the support section (101) and the lateral support face (102) of the notch, respectively.
  7. Fixing arrangement according to Claim 5 or 6, characterized in that the screwing base (111) has a parallelepipedal shape.
  8. Fixing arrangement according to Claim 5 or 6, characterized in that the screwing base (111) is cylindrical.
  9. Fixing arrangement according to Claim 8, characterized in that the second support wall of the cylindrical screwing base (111) comprises a flat portion (114) .
  10. Fixing arrangement according to any one of Claims 5 to 9, characterized in that the depth of the notch (100) is less than or equal to the thickness of the screwing base (111) of the insert (110).
  11. Fixing arrangement according to any one of Claims 5 to 10, characterized in that the screwing base (111) comprises a through-hole (116) which is generated by revolution about an axis which extends in an oblique manner relative to the front support face (115) .
  12. Fixing arrangement according to Claim 11, characterized in that the passage cross-section of the tubular conduit (25) is in the continuation of the through-hole (116).
  13. Fixing arrangement according to any one of Claims 1 to 12, characterized in that the flange (19) comprises a passage channel in a fixing wall at the upper end which is adapted to surround the tubular conduit (25) .
  14. Fixing arrangement according to Claim 13, characterized in that the length of the tubular conduit is less than the length of the passage channel of the flange (19).
EP20709218.0A 2019-05-24 2020-03-12 Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head Active EP3976947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1905475A FR3096405A1 (en) 2019-05-24 2019-05-24 notch on the cylinder head intake face for oblique mounting on engine cylinder head
PCT/EP2020/056604 WO2020239282A1 (en) 2019-05-24 2020-03-12 Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head

Publications (2)

Publication Number Publication Date
EP3976947A1 EP3976947A1 (en) 2022-04-06
EP3976947B1 true EP3976947B1 (en) 2023-05-03

Family

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Application Number Title Priority Date Filing Date
EP20709218.0A Active EP3976947B1 (en) 2019-05-24 2020-03-12 Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head

Country Status (6)

Country Link
EP (1) EP3976947B1 (en)
JP (1) JP7519383B2 (en)
KR (1) KR20220012868A (en)
CN (1) CN113994077A (en)
FR (1) FR3096405A1 (en)
WO (1) WO2020239282A1 (en)

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157313A (en) * 1974-11-13 1976-05-19 Toyota Motor Co Ltd Nainenkikanno nokongokino kyokyusochi
JPH0323364A (en) * 1989-06-20 1991-01-31 Texas Instr Japan Ltd Heating device for fuel feed device
JP3319643B2 (en) * 1994-01-25 2002-09-03 ヤマハ発動機株式会社 Engine intake control device
DE19653908A1 (en) * 1996-12-21 1998-06-25 Daimler Benz Ag Device for connecting a pipe bend
JP3887086B2 (en) * 1997-11-19 2007-02-28 ヤマハ発動機株式会社 Fuel system mounting structure of internal combustion engine
DE10029241B4 (en) * 2000-06-14 2012-10-31 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Cylinder head attachment to a cylinder block of an internal combustion engine
DE10061706A1 (en) * 2000-12-12 2002-06-27 Siemens Ag Arrangement for releasably attaching an intake device to the cylinder head
JP3975980B2 (en) * 2003-08-11 2007-09-12 日産自動車株式会社 Engine intake system
DE102004010815A1 (en) * 2004-03-05 2005-09-29 Benteler Automobiltechnik Gmbh Arrangement for fixing an exhaust manifold on the cylinder head of an internal combustion engine
JP2006200482A (en) * 2005-01-21 2006-08-03 Honda Motor Co Ltd Intake device of internal combustion engine
FR2897101A1 (en) * 2006-02-08 2007-08-10 Renault Sas Exhaust manifold fixing device for combustion engine, has bars constituted of single piece connected and mounted on cylinder head and upper end of flange, respectively, where flange is supported on cylinder head
DE102006056704A1 (en) * 2006-11-30 2008-06-05 Robert Bosch Gmbh Fuel injector and fuel injection system
WO2009003668A1 (en) * 2007-06-29 2009-01-08 Borgwarner Inc. Connecting device for fastening an outlet manifold to the cylinder head of an internal combustion engine
JP4801720B2 (en) * 2008-12-09 2011-10-26 トヨタ紡織株式会社 Composite member fixing structure
AT509691B1 (en) * 2010-03-18 2013-09-15 Avl List Gmbh INTERNAL COMBUSTION ENGINE WITH A CONNECTION ASSEMBLY FOR A CYLINDER HEAD
DE102010025657A1 (en) * 2010-06-30 2012-01-05 Bayerische Motoren Werke Aktiengesellschaft Arrangement for fastening e.g. exhaust gas manifold flange, at cylinder head of combustion engine, has attachment element including passage opening for another attachment element and transferring force to mounting portion
JP5440806B2 (en) * 2011-04-05 2014-03-12 株式会社デンソー Intake device
DE102014217314B4 (en) 2014-08-29 2022-03-24 Volkswagen Aktiengesellschaft Charge air cooler for an internal combustion engine and arrangement of a charge air cooler on a cylinder head of an internal combustion engine
DE102016102844A1 (en) * 2016-02-04 2017-08-10 Eberspächer Exhaust Technology GmbH & Co. KG Fastening arrangement for fixing an exhaust manifold to a cylinder head of an internal combustion engine
FR3050231A1 (en) * 2016-04-13 2017-10-20 Renault Sas OPTIMIZED EXHAUST MANIFOLD ARRANGEMENT WITH ROD FITTING
CN206988067U (en) * 2017-05-04 2018-02-09 惠而浦股份有限公司 Reciprocating compressor head device

Also Published As

Publication number Publication date
JP7519383B2 (en) 2024-07-19
KR20220012868A (en) 2022-02-04
EP3976947A1 (en) 2022-04-06
CN113994077A (en) 2022-01-28
FR3096405A1 (en) 2020-11-27
WO2020239282A1 (en) 2020-12-03
JP2022533679A (en) 2022-07-25

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