WO2020239282A1 - 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
WO2020239282A1
WO2020239282A1 PCT/EP2020/056604 EP2020056604W WO2020239282A1 WO 2020239282 A1 WO2020239282 A1 WO 2020239282A1 EP 2020056604 W EP2020056604 W EP 2020056604W WO 2020239282 A1 WO2020239282 A1 WO 2020239282A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing
cylinder head
face
notch
arrangement according
Prior art date
Application number
PCT/EP2020/056604
Other languages
French (fr)
Inventor
Paulo Da Silva
Riowen HEDOUX
Thomas VENEZIANI
Original Assignee
Renault S.A.S
Nissan Motor Co., Ltd.
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 Renault S.A.S, Nissan Motor Co., Ltd. filed Critical Renault S.A.S
Priority to JP2021568894A priority Critical patent/JP7519383B2/en
Priority to KR1020217040341A priority patent/KR20220012868A/en
Priority to EP20709218.0A priority patent/EP3976947B1/en
Priority to CN202080037679.5A priority patent/CN113994077A/en
Publication of WO2020239282A1 publication Critical patent/WO2020239282A1/en

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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 heat 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.
  • the vehicle equipped with a heat engine also called internal combustion 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 leading to research into 'improvements in terms of the compactness of the engine and its components or accessories.
  • a heat engine comprises, in a known manner, a cylinder block on which a cylinder head is mounted.
  • a cylinder head In the cylinder head are hollowed out 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 from combustion in the cylinders of the engine.
  • the air and / or the intake gases are directed to the intake distributor having been previously compressed when passing 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 re-cooler stage comprises for example an air / water exchanger by which the hot compressed air transfers 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 flow of the intake air, forming a chamber with, for example, a recess in the cylinder head. Said chamber is part of an intake distributor plenum.
  • crankcase is secured against the cylinder head intake face with the flange.
  • the fixing of this casing must meet strong mechanical stresses which require parts of great rigidity in metallic material such as steel or steel alloy.
  • said housing is fixed in an oblique direction relative to the intake face of the cylinder head.
  • Said intake face extends substantially in a vertical plane.
  • the publication DE102014217314-A1 discloses a fixing of a casing against an inlet face of a cylinder head of a heat engine, said fixing comprises two support walls substantially orthogonal to one another which are fixed in support against two orthogonal surfaces of the cylinder head.
  • a problem with this attachment is a need for two or thogonal bearing surfaces at a top end of the cylinder head, which can lead to increased thickness of said upper cylinder head end.
  • fastener is part of the exchanger housing which results in an increase in engine weight.
  • 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 of a fixing flange of a housing of an engine element, to a cylinder head.
  • the present invention relates more particularly to an arrangement for fixing at an angle of a fixing flange of a housing of a heat engine element to a fixing wall of a cylinder head of said engine, said cylinder head comprising a sidewalk of fixing against which the fixing flange is fixed to rest by means of a device for fixing to a cylinder head,
  • said fixing device comprises a guide and fixing device mounted to bear against the wall of a notch cut in the cylinder head from the face of the fixing sidewalk.
  • the fixing device comprises an in serves as a guide and fixing mounted to bear against the wall of a notch in the cylinder head from the face of the fixing sidewalk.
  • Said fixing device is able to withstand the constraints of clamping or fixing the flange against the cylinder head.
  • the notch may be a countersink hollowed out from the face of the sidewalk for fixing the cylinder head, which enables the positioning of said device to be fixed in a precise manner, in particular by avoiding areas of thin thickness of the cylinder head wall.
  • the insert comprises a tubular duct extending obliquely from the face of the cylinder head fixing sidewalk.
  • the fixing insert comprises a tubular duct
  • tubular duct extending obliquely from the face of the cylinder head fixing sidewalk, said tubular duct being able to cooperate with the fixing flange to facilitate the mounting of said flange against the cylinder head and ensure the fixing of said flange against the fixing sidewalk of the cylinder head.
  • the notch has a support section parallel to the fixing sidewalk.
  • the notch or the countersink comprises a bearing section in the bottom of the counterbore parallel to the sidewalk for fixing the cylinder head for a good distribution and taking into account the constraints of fixing the flange against the cylinder head.
  • the notch has a lateral support face orthogonal to the support section and at the lower end of the notch.
  • the notch has a lateral bearing face orthogonal to the front bearing 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 comprises a screw base adapted to be housed in the notch.
  • the fixing device comprises a screw base adapted to be housed in the notch.
  • the dimensions of the base are significantly smaller than those of the notch.
  • the screwing base of the insert comprises a front bearing face and a lateral bearing face mounted to bear respectively against a bearing section and against a lateral bearing face of the notch.
  • the screwing base of the insert must be in contact at least on the support section and the lateral support face of the notch for a transmission of forces.
  • the screw base has a parallelepipedal shape.
  • the base of the insert has a parallelepipedal shape to ensure contact and support of the front face and the lateral support face against the support section and respectively. the bearing face of the notch.
  • the screwing base is cylindrical.
  • the base of the insert has an easy to obtain cylindrical shape.
  • the cylindrical screwing base comprises a flat.
  • the cylindrical base comprises a flat as
  • the depth of the notch is less than or equal to the thickness of the screw base of the insert.
  • the depth of the notch is less than or equal to
  • the thickness of the insert screwing base which can cause a slight protrusion of the insert screwing base to allow control of the crushing of a gasket disposed between the flange and the cylinder head.
  • the screwing base comprises a through orifice of revolution about an axis
  • an orifice is drilled in the counterbore from the first bearing face. Said hole is intended to receive a fixing screw passing through the base of the fixing insert.
  • the flange comprises a passage channel in an end fixing wall
  • the fixing flange comprises a passage channel hollowed out through a fixing wall at the top end of the flange and intended to house the tubular duct of the fixing device to facilitate the mounting of the fixing flange and therefore the crankcase of the engine element against the cylinder head.
  • the length of the tubular duct is less than the length of the passage channel of the flange.
  • 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 held under pressure against the cylinder head.
  • FIG. 1 is a schematic front view of an intake face 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 an in used for fixing and stiffening.
  • FIG.5 is a front view facing the cylinder head of an in which serves as a fastener according to one embodiment.
  • FIG.6 is a cross-sectional view of the fixing arrangement according to one embodiment.
  • FIG.7 is a schematic view of an in used for fixing and stiffening.
  • up / down refer to an orthonormal frame of reference for 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 to the engine hood of the vehicle.
  • the invention provides an arrangement for fixing at an angle of an element of a thermal or internal combustion engine of a motor vehicle, to said engine.
  • Figures 1 and 2 show a cylinder head 15 of a heat engine and in particular an intake face 14 of said cylinder head 15.
  • an intake manifold is mounted to rest against the cylinder head to cover the cylinder head intake port.
  • Said intake distributor is formed by a fixing flange 19 which allows the fixing of a casing 42 of an engine element or accessory to the cylinder head, here said element is a water / air heat exchanger 11 as shown in figure 4.
  • the following description describes an angled fixing of the casing 42 of the heat exchanger 11 in particular of the fixing flange 19 of said casing, by means of a fixing means, against the intake face 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 case of another part or accessory of the engine.
  • a heat engine of a motor vehicle is associated with an air intake circuit.
  • Said circuit leads fresh air captured at the front face of the motor vehicle to the engine.
  • the air passes through parts of the engine which may include an air filter, an intake valve, a control stage.
  • pressure which can be the compressor of a turbocharger. 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 it is admitted into the engine.
  • the air can also be mixed with recirculated exhaust gases taken from an exhaust circuit, which increases the temperature of the intake recirculated air-gas mixture. Mixing is generally carried out upstream according to the direction of air circulation, from the heat exchanger.
  • the heat exchanger 11 of the water / air type known under the English name of “WaterCAC” to reduce its temperature before it is injected into the engine according to FIG. 4.
  • the heat exchanger is housed in a housing 42 which is fixed to bear against the intake face 14 of the cylinder head 15.
  • the casing 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 Figure 4.
  • the intake air flow takes place at a direction Al from the outside towards the cylinder head, said direction Al forms 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 parallel to the epipedic shape with a flat and vertical intake face 14.
  • the exchanger casing 42 is thus fixed at an angle against the intake face 14 and here near the upper end 12 of said intake face 14 by means of a flange. fixing 19.
  • the mounting flange 19 has a bearing face 20 facing the intake 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 housing 42 is fixed to said outer face 21 of the flange.
  • the flange 19 thus defines a chamber 18 which is part of an intake plenum of the engine intake manifold.
  • 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 on the edge of the bearing face of the flange.
  • the fixing pins for said fixing means at the top end of the flange 19 are at an angle with respect to the bearing face 20, and orthogonal to said bearing face 20 at the edges. lateral 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 ensure that the flange 19 is fixed at an angle to the exchanger casing, against the cylinder head 15.
  • the invention proposes an arrangement for fixing 10 the fixing flange 19, in the upper part of said flange, and the cylinder head 15 as shown in Figures 1 and 3.
  • the fixing of the flange to the cylinder head is effected by means of a fastening device which comprises fastening 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.
  • inlet 14 introduces a mechanical stress along the axis of the binding.
  • Said stress is composed of a stress along an axis orthogonal to the support face 20 and a stress parallel to said support face which can lead to deformation of the parts. It is necessary to have a device for rigidifying the fixing of the flange 19 to the cylinder head.
  • the yoke 15 comprises at least one notch 100, preferably two notches as shown in Figure 2, which are hollowed out from the face of the fixing sidewalk 30. Said notches 100 can be countersinks.
  • the notch 100 has a support section 101 which may be rectangular in the bottom of the notch, stretching along the longitudinal axis X of the cylinder head 15, and a depth of l '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, or thogonal to the bearing section 101.
  • the lateral bearing face 102 is disposed at the lower end of the notch 100 and facing the top of the cylinder head.
  • said support section 101 and said side support face 102 are obtained by machining.
  • Obtaining the support section and the lateral support face orthogonal to said support section can be achieved during the same cycle of operations as the entire inlet face with the same tool guide reference, which facilitates the operation of machining the two surfaces and improves the precision of obtaining said surfaces.
  • the fixing device 120 comprises a guide and fixing insert 110 which facilitates the assembly and fixing of said flange 19 against the fixing sidewalk 30 of the cylinder head.
  • the insert 110 comprises a screwing base 111 which is substantially piped parallel and mounted to bear against the bearing section 101 of the notch 100.
  • Said screwing base 111 comprises a bearing face 115 which may be square or rec tangular. contact with the support section 101.
  • the thickness of the screw base 111 is equal or even slightly greater than the depth of the notch 100 in order to properly control the contact and support of the fixing flange 19 against the sidewalk.
  • fixing 30 of the cylinder head in particular controlling the crushing of a seal (not shown) arranged between said flange 19 and the sidewalk 30.
  • Said screw base 11 1 comprises a through hole 116 whose G axis is
  • the screwing base 111 comprises a front face 115 square or rec
  • the surfaces of the front bearing face 115 of the screwing base may be equal to the area of the bearing section 101 of the notch 100.
  • the insert 110 comprises a side bearing face 1 12 orthogonal to the front bearing face 115, which is mounted to bear against the side bearing face 102 of the notch 100 which is turned upwards. of the cylinder head.
  • the front 115 and side 112 support faces of the screw base 111 facing respectively with the support section 101 and with the lateral support face 102 of the notch 100 are machined.
  • the insert 110 also comprises, as shown in Figure 5, a conduit
  • 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 sidewalk fixing 30, along an axis coincident with the axis of the through-hole 116.
  • the tubular duct 25 is cylindrical and rectilinear. It has an internal section 26 of cylindrical passage at least equal to the section of the through orifice 116.
  • the tubular guide duct cooperates with the exchanger fixing flange 19, which comprises a passage channel capable of accommodating the cylindrical tubular duct 25.
  • the outside diameter of the tubular duct 25 is substantially equal or slightly smaller than the diameter of the cross 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 casing 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 face of front support 115 mounted to bear against the support 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 screw base 111 has a through hole 116 whose G axis coincides with the axis of the cylindrical insert 110.
  • the length of the screw base is roughly equal to the depth of the notch 100.
  • the cylindrical screwing base 111 is extended by the tubular duct 25 from the face of the fixing sidewalk 30, said cylindrical screwing base 110 and the tubular duct 25 being coaxial.
  • the outer diameters of the cylindrical screw base 111 and of the tubular duct 25 are equal to facilitate the production of the insert 110.
  • the cylindrical screw base 11 1 comprises a flat 114 which is orthogonal to the front support face 115.
  • the flat 114 is intended to bear against the lateral support face 102 of the notch.
  • the insert 110 is mounted to bear against the cylinder head 15 so that the parallelepipedal or cylindrical screwing base 110 is housed in the notch 100.
  • the front support face 115 is mounted to bear against the support section 101 of the notch 100.
  • the lateral support wall 112 or the flat 114 is mounted to bear 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 around the duct
  • tubular 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 duct 25 against the cylinder head 15.
  • the fixing device 120 is made of metallic material with sufficient rigidity of the order of 30,000 to 200,000N / mm.
  • the fixing arrangement allows the diagonal fixing of a fixing flange of a crankcase against the intake face of the cylinder head ensuring on the one hand sufficient rigidity and on the other hand ease of assembly.
  • the guide insert helps prevent assembly errors.
  • Said arrangement may or may not be disposed at a top end 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)

Abstract

The invention relates to an angled attachment arrangement of an attachment flange (19) of a housing (42) of a combustion engine component to an attachment wall of a cylinder head (15) of the engine, the cylinder head comprising an attachment rim (30) against which the attachment flange (19) is attached in abutment using an attachment device (120), characterised in that said attachment device comprises a guidance and attachment insert (110) mounted in abutment against the wall of a notch (100) made in the cylinder head from the attachment rim surface (30).

Description

Description Description
Titre de l'invention : entaille sur face d’admission de culasse pour la fixation en oblique sur culasse de moteur Title of the invention: notch on the cylinder head intake face for oblique mounting on engine cylinder head
Domaine technique de l’invention Technical field of the invention
[0001] 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’admission The present invention also relates to a motor vehicle equipped with a heat 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 technique State of the art
[0002] Un véhicule automobile connaît de plus en plus de contraintes de réduction [0002] A motor vehicle experiences more and more reduction constraints
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 di mensions sont de plus en plus réduites entraînant des recherches d’ améliorations en termes de compacité du moteur et de ses éléments ou accessoires. the size of its equipment for aesthetic reasons or passenger comfort. In particular, the vehicle equipped with a heat engine also called internal combustion 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 leading to research into 'improvements in terms of the compactness of the engine and its components 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 parts 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 a known manner, a cylinder block on which a cylinder head is mounted. In the cylinder head are hollowed out 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 from combustion in the cylinders of the engine.
[0003] 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 re froidisseur 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. [0003] The air and / or the intake gases are directed to the intake distributor having been previously compressed when passing a compressor which is for example the compression stage of a turbocharger. In order to improve engine efficiency and performance, the intake air is cooled before it is admitted to 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 re-cooler stage comprises for example an air / water exchanger by which the hot compressed air transfers 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 flow of the intake air, forming a chamber with, for example, a recess in the cylinder head. Said chamber is part of an intake distributor 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 mé caniques fortes qui nécessitent des pièces de grande rigidité en matériau métallique comme de l’acier ou d’ alliage d’ acier. To reduce engine weight, the crankcase is secured against the cylinder head intake face with the flange. The fixing of this casing must meet strong mechanical stresses 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 space in the engine compartment, said housing is fixed in an oblique direction relative to the intake face of the cylinder head. Said intake face extends substantially in a vertical plane.
[0004] 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. [0004] The publication DE102014217314-A1 discloses a fixing of a casing against an inlet face of a cylinder head of a heat engine, said fixing comprises two support walls substantially orthogonal to one another which are fixed in support against two orthogonal surfaces of the cylinder head.
Un problème de cette fixation est une nécessité de deux surfaces d’ appui or thogonales 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 a need for two or thogonal bearing surfaces at a top end of the cylinder head, which can lead to increased thickness of said upper cylinder head end.
[0005] Un autre problème est que la fixation est partie du carter d’échangeur ce qui entraîne une augmentation de poids du moteur. [0005] Another problem is that the fastener is part of the exchanger housing which results in an increase in engine weight.
[0006] 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 perpen diculaire 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 near the upper end of the cylinder head, a second bearing surface on the cylinder head perpendicular to a first bearing or fixing surface which is parallel to the sidewalk mounting bracket or the intake 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 of a fixing flange of a housing of an engine element, to a cylinder head.
Présentation de l’invention Presentation of the invention
[0007] 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, [0007] The present invention relates more particularly to an arrangement for fixing at an angle of a fixing flange of a housing of a heat engine element to a fixing wall of a cylinder head of said engine, said cylinder head comprising a sidewalk of fixing against which the fixing flange is fixed to rest by means of a device for fixing to a cylinder head,
[0008] Caractérisé en ce que ledit dispositif de fixation comprend un in sert 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. [0008] Characterized in that said fixing device comprises a guide and fixing device mounted to bear against the wall of a notch cut in the cylinder head from the face of the fixing sidewalk.
[0009] De manière avantageuse, le dispositif de fixation comprend un in sert 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. [0009] Advantageously, the fixing device comprises an in serves as a guide and fixing mounted to bear against the wall of a notch in the cylinder head from the face of the fixing sidewalk. Said fixing device is able to withstand the constraints of clamping or fixing the flange against the cylinder head. The notch may be a countersink hollowed out from the face of the sidewalk for fixing the cylinder head, which enables the positioning of said device to be fixed in a precise manner, in particular by avoiding areas of thin thickness of the cylinder head wall.
[0010] Selon d’autres caractéristiques de l’invention : [0010] According to other characteristics of the invention:
[0011] -l’insert comprend un conduit tubulaire s’étendant en biais depuis la face du trottoir de fixation de la culasse. [0011] -the insert comprises a tubular duct extending obliquely from the face of the cylinder head fixing sidewalk.
[0012] De manière avantageuse, l’insert de fixation comprend un conduit tubulaire [0012] Advantageously, the fixing insert comprises a tubular duct
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. extending obliquely from the face of the cylinder head fixing sidewalk, said tubular duct being able to cooperate with the fixing flange to facilitate the mounting of said flange against the cylinder head and ensure the fixing of said flange against the fixing sidewalk of the cylinder head.
[0013] -l’entaille comporte une section d’appui parallèle au trottoir de fixation. [0013] -the notch has a support section parallel to the fixing sidewalk.
[0014] 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 ré partition et prise en compte des contraintes de fixation de la bride contre la culasse. Advantageously, the notch or the countersink comprises a bearing section in the bottom of the counterbore parallel to the sidewalk for fixing the cylinder head for a good distribution and taking into account the constraints of fixing the flange against the cylinder head.
[0015] -l’entaille comporte une face d’appui latérale orthogonale à la section d’ appui et en extrémité basse de l’entaille. [0015] -the notch has a lateral support face orthogonal to the support section and at the lower end of the notch.
[0016] 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. [0016] Advantageously, the notch has a lateral bearing face orthogonal to the front bearing 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.
[0017] -l’insert comprend une base de vissage adaptée pour être logée dans l’entaille. [0017] -the insert comprises a screw base adapted to be housed in the notch.
[0018] 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 sen siblement inférieures à celles de l’entaille. [0018] Advantageously, the fixing device comprises a screw base adapted to be housed in the notch. For this purpose, the dimensions of the base are significantly smaller than those of the notch.
[0019] -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. [0019] the screwing base of the insert comprises a front bearing face and a lateral bearing face mounted to bear respectively against a bearing section and against a lateral bearing face of the notch.
[0020] 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. [0020] Advantageously, the screwing base of the insert must be in contact at least on the support section and the lateral support face of the notch for a transmission of forces.
[0021] -la base de vissage présente une forme parallélépipédique. -The screw base has a parallelepipedal shape.
[0022] 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. [0022] 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 against the support section and respectively. the bearing face of the notch.
[0023] -la base de vissage est cylindrique. [0023] -the screwing base is cylindrical.
[0024] De manière avantageuse, la base de l’insert présente une forme cylindrique facile à obtenir. [0024] Advantageously, the base of the insert has an easy to obtain cylindrical shape.
[0025] -la base de vissage cylindrique comprend un méplat. [0025] -the cylindrical screwing base comprises a flat.
[0026] De manière avantageuse, la base cylindrique comprend un méplat en tant que [0026] Advantageously, the cylindrical base comprises a flat as
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. second bearing wall which is mounted to bear against the second bearing face of the notch, thus ensuring a transmission of forces for fixing the flange against the cylinder head.
[0027] -la profondeur de l’entaille est inférieure ou égale à l’épaisseur de la base de vissage de l’insert. [0027] the depth of the notch is less than or equal to the thickness of the screw base of the insert.
[0028] De manière avantageuse, la profondeur de l’entaille est inférieure ou égale à [0028] Advantageously, the depth of the notch is less than or equal to
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. the thickness of the insert screwing base, which can cause a slight protrusion of the insert screwing base to allow control of the crushing of a gasket disposed between the flange and the cylinder head.
[0029] -la base de vissage comprend un orifice traversant de révolution selon un axe -The screwing base comprises a through orifice of revolution about an axis
s’étendant en biais par rapport à la face d’ appui frontale. extending at an angle to the frontal support face.
[0030] 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. [0030] Advantageously, an orifice is drilled in the counterbore from the first bearing face. Said hole is intended to receive a fixing screw passing through the base of the fixing insert.
[0031] -la bride comprend un canal de passage dans une paroi de fixation en extrémité [0031] -the flange comprises a passage channel in an end fixing wall
haute, adapté pour entourer le conduit tubulaire. high, suitable to surround the tubular duct.
[0032] 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. [0032] Advantageously, the fixing flange comprises a passage channel hollowed out through a fixing wall at the top end of the flange and intended to house the tubular duct of the fixing device to facilitate the mounting of the fixing flange and therefore the crankcase of the engine element against the cylinder head.
[0033] -la longueur du conduit tubulaire est inférieure à la longueur du canal de passage de la bride. [0033] the length of the tubular duct is less than the length of the passage channel of the flange.
[0034] 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. [0034] 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 held under pressure against the cylinder head.
Brève description des figures Brief description of the figures
[0035] 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 : Other characteristics and advantages of the invention will become apparent on reading the following description of particular embodiments of the invention given by way of non-limiting examples and shown in the accompanying drawings, in which:
[fig.l] est une vue schématique de face d’une face admission d’une culasse. [fig.l] is a schematic front view of an intake face of a cylinder head.
[0036] [fig.2] est une vue schématique d’une culasse de moteur thermique. [0037] [fig.3] est une vue de coupe transversale de la culasse avec une bride de fixation monté contre la culasse. [0036] [Fig.2] is a schematic view of a heat engine cylinder head. [0037] [Fig.3] is a cross sectional view of the cylinder head with a mounting flange mounted against the cylinder head.
[0038] [fig.4] est une vue schématique d’un in sert de fixation et de rigidification. [0038] [fig.4] is a schematic view of an in used for fixing and stiffening.
[0039] [fig.5] est une vue de devant tournée vers la culasse d’un in sert de fixation selon un mode de réalisation. [0039] [Fig.5] is a front view facing the cylinder head of an in which serves as a fastener according to one embodiment.
[0040] [fig.6] est une vue de coupe transversale de l’agencement de fixation selon un mode de réalisation. [0040] [Fig.6] is a cross-sectional view of the fixing arrangement according to one embodiment.
[0041] [fig.7] est une vue schématique d’un in sert de fixation et de rigidification. [0041] [fig.7] is a schematic view of an in used for fixing and stiffening.
Description détaillée des figures Detailed description of figures
[0042] Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires. In the description which follows, identical reference numerals denote identical parts or having similar functions.
[0043] 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 up / down refer to an orthonormal frame of reference for 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 to the engine hood of the vehicle.
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 provides an arrangement for fixing at an angle of an element of a thermal or internal combustion engine of a motor vehicle, to said engine.
[0044] Les figures 1 et 2 présentent une culasse 15 d’un moteur thermique et notamment une face admission 14 de ladite culasse 15. [0044] Figures 1 and 2 show a cylinder head 15 of a heat engine and in particular an intake face 14 of said cylinder head 15.
[0045] 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. [0045] According to Figure 3, an intake manifold is mounted to rest against the cylinder head to cover the cylinder head intake port. Said intake distributor is formed by a fixing flange 19 which allows the fixing of a casing 42 of an engine element or accessory to the cylinder head, here said element is a water / air heat exchanger 11 as shown in figure 4.
[0046] 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 understanding of the invention, the following description describes an angled fixing of the casing 42 of the heat exchanger 11 in particular of the fixing flange 19 of said casing, by means of a fixing means, against the intake face 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 case of another part 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 com- pression 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 leads fresh air captured at the front face of the motor vehicle to the engine. The air passes through parts of the engine which may include an air filter, an intake valve, a control stage. pressure which can be the compressor of a turbocharger. 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 it is admitted into the engine. The air can also be mixed with recirculated exhaust gases taken from an exhaust circuit, which increases the temperature of the intake recirculated air-gas mixture. Mixing is generally carried out upstream according to the direction of air circulation, from the heat exchanger.
[0047] L’air d’admission porté à température élevée lors de la compression ou par le The intake air brought to high temperature during compression or by the
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. mixture 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 it is injected into the engine according to FIG. 4. The heat exchanger is housed in a housing 42 which is fixed to bear 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. To optimize the size of the engine and its components or accessories installed in an engine compartment of the motor vehicle, the casing 42 of the exchanger 11 is fixed at an angle against said substantially vertical intake face 14 of the engine.
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 Al de l’extérieur vers la culasse, ladite direction Al 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 parallé lépipédique avec une face d’ admission 14 plane et verticale. The axis of the intake air flow is oblique with respect to the intake face 14 of the cylinder head as shown in Figure 4. The intake air flow takes place at a direction Al from the outside towards the cylinder head, said direction Al forms 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 parallel to the epipedic shape with a flat and vertical intake face 14.
[0048] 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 casing 42 is thus fixed at an angle against the intake face 14 and here near the upper end 12 of said intake face 14 by means of a flange. fixing 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 mounting flange 19 has a bearing face 20 facing the intake face 14 of the cylinder head, and an opposite outer face 21 which is oblique with respect to said bearing face 20.
[0049] 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’admission 14 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.
[0050] 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 housing 42 is fixed to said outer face 21 of the flange. The flange 19 thus defines a chamber 18 which is part of an intake plenum of the engine intake manifold. 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 on the edge of the bearing face of the flange. The fixing pins for said fixing means at the top end of the flange 19 are at an angle with respect to the bearing face 20, and orthogonal to said bearing face 20 at the edges. lateral and at the lower end.
[0051] 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. The plastic, however, does not have sufficient rigidity to ensure that the flange 19 is fixed at an angle to 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 an arrangement for fixing 10 the fixing flange 19, in the upper part of said flange, and the cylinder head 15 as shown in Figures 1 and 3. The fixing of the flange to the cylinder head is effected by means of a fastening device which comprises fastening 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.
[0052] Il est connu qu’une fixation en biais sur une face d’ appui verticale, ici la face It is known that fixing at an angle on a face of vertical support, here the 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 dé formations des pièces. Il est nécessaire de disposer un dispositif de rigidification de la fixation de la bride 19 à la culasse. inlet 14, introduces a mechanical stress along the axis of the binding. Said stress is composed of a stress along an axis orthogonal to the support face 20 and a stress parallel to said support face which can lead to deformation of the parts. It is necessary to have a device for rigidifying the fixing of the flange 19 to the cylinder head.
[0053] 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 Figure 2, which are hollowed out from the face of the fixing sidewalk 30. Said notches 100 can be countersinks.
[0054] 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.
[0055] 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 support section 101 which may be rectangular in the bottom of the notch, stretching along the longitudinal axis X of the cylinder head 15, and a depth of l 'order of 2 to 5mm.
[0056] La section d’ appui 101 de l’entaille est sensiblement parallèle à la face d’admission 14 de la culasse 15. [0056] The support section 101 of the notch is substantially parallel to the intake face 14 of the cylinder head 15.
[0057] L’entaille présente une face d’ appui latérale 102 selon la profondeur de l’entaille, or thogonale 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, or thogonal to the bearing section 101. The lateral bearing face 102 is disposed at the lower end of the notch 100 and facing the top of the cylinder head.
[0058] 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. [0058] Preferably, said support section 101 and said side support face 102 are obtained by machining. Obtaining the support section and the lateral support face orthogonal to said support section can be achieved during the same cycle of operations as the entire inlet face with the same tool guide reference, which facilitates the operation of machining the two surfaces and improves the precision of obtaining said surfaces.
[0059] Au fond de l’entaille 100 est percé un orifice de vissage 103 débouchant de la section d’appui 101 et dont l’axe XI est sensiblement oblique par rapport au plan de ladite section d’appui 101 et donc de la face d’admission 14 de la culasse. [0060] 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 parallélé pipédique 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 rec tangulaire en contact avec la section d’appui 101. At the bottom of the notch 100 is drilled a screw hole 103 emerging from the support section 101 and whose axis XI is substantially oblique relative to the plane of said support section 101 and therefore the face inlet 14 of the cylinder head. According to one embodiment shown in Figures 4 and 5, the fixing device 120 comprises a guide and fixing insert 110 which facilitates the assembly and fixing of said flange 19 against the fixing sidewalk 30 of the cylinder head. The insert 110 comprises a screwing base 111 which is substantially piped parallel and mounted to bear against the bearing section 101 of the notch 100. Said screwing base 111 comprises a bearing face 115 which may be square or rec tangular. contact with the support section 101.
[0061] De manière préférentielle, l’épaisseur de la base de vissage 111 est égale voire lé gèrement 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 screw base 111 is equal or even slightly greater than the depth of the notch 100 in order to properly control the contact and support of the fixing flange 19 against the sidewalk. fixing 30 of the cylinder head, in particular controlling the crushing of a seal (not shown) arranged between said flange 19 and the sidewalk 30.
[0062] Ladite base de vissage 11 1 comprend un orifice traversant 116 dont G axe est Said screw base 11 1 comprises a through hole 116 whose G axis is
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 G insert 110 montée contre la culasse, dans le logement de l’entaille. coincident with the axis of the screw hole 103 emerging from the support section 101 of the notch 100, once the screw base of G insert 110 mounted against the cylinder head, in the housing of the notch.
[0063] La base de vissage 111 comprend une face d’ appui frontale 115 carrée ou rec The screwing base 111 comprises a front face 115 square or rec
tangulaire 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. tangular mounted to bear against the support section 101. The surfaces of the front bearing face 115 of the screwing base may be equal to the area of the bearing section 101 of the notch 100.
[0064] L’ insert 110 comprend une face d’appui latérale 1 12 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 side bearing face 1 12 orthogonal to the front bearing face 115, which is mounted to bear against the side bearing face 102 of the notch 100 which is turned upwards. of the cylinder head.
[0065] 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 side 112 support faces of the screw base 111 facing respectively with the support section 101 and with the lateral support face 102 of the notch 100 are machined.
[0066] L’ insert 110 comprend également tel que représenté en figure 5 un conduit de [0066] The insert 110 also comprises, as shown in Figure 5, a conduit
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. guide 24 to ensure the mounting and maintenance of 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 sidewalk fixing 30, along an axis coincident with the axis of the through-hole 116. The tubular duct 25 is cylindrical and rectilinear. It has an internal section 26 of cylindrical passage at least equal to the section of the through orifice 116.
[0067] 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 sen siblement égal ou légèrement inférieur au diamètre de la section du canal de passage au jeu de montage près. [0068] 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. The tubular guide duct cooperates with the exchanger fixing flange 19, which comprises a passage channel capable of accommodating the cylindrical tubular duct 25. Preferably, the outside diameter of the tubular duct 25 is substantially equal or slightly smaller than the diameter of the cross section of the passage channel to the nearest assembly clearance. 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 casing 42.
[0069] Selon un mode préféré de réalisation présenté en figures 6 et 7, l’insert 110 est cy lindrique 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 shown 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 face of front support 115 mounted to bear against the support 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.
[0070] La base de vissage 111 comporte un orifice traversant 116 dont G axe est confondu avec l’axe de l’insert 110 cylindrique. La longueur de la base de vissage et sen siblement égale à la profondeur de l’entaille 100. The screw base 111 has a through hole 116 whose G axis coincides with the axis of the cylindrical insert 110. The length of the screw base is roughly equal to the depth of the notch 100.
[0071] 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 1 10 et le conduit tubulaire 25 étant coaxiaux. The cylindrical screwing base 111 is extended by the tubular duct 25 from the face of the fixing sidewalk 30, said cylindrical screwing base 110 and the tubular duct 25 being coaxial.
[0072] De manière préférentielle, les diamètres extérieurs de la base de vissage 111 cy lindrique et du conduit tubulaire 25 sont égaux pour faciliter la réalisation de l’insert 110. Preferably, the outer diameters of the cylindrical screw base 111 and of the tubular duct 25 are equal to facilitate the production of the insert 110.
[0073] De manière préférentielle, la base de vissage 11 1 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 screw base 11 1 comprises a flat 114 which is orthogonal to the front support face 115. The flat 114 is intended to bear against the lateral support face 102 of the notch.
[0074] 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 to bear against the cylinder head 15 so that the parallelepipedal or cylindrical screwing base 110 is housed in the notch 100.
[0075] La face d’ appui frontale 115 est montée en appui contre la section d’ appui 101 de l’entaille 100. The front support face 115 is mounted to bear against the support section 101 of the notch 100.
[0076] 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. Likewise, the lateral support wall 112 or the flat 114 is mounted to bear against the lateral support face 102 of the notch 100 facing the top of the cylinder head.
[0077] La bride de fixation 19 du carter d’échangeur est montée entourant le conduit The fixing flange 19 of the exchanger casing is mounted around the duct
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. tubular 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 duct 25 against the cylinder head 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 200,000N / 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 diagonal fixing of a fixing flange of a crankcase against the intake face of the cylinder head ensuring on the one hand sufficient rigidity and on the other hand ease of assembly. The guide insert helps prevent assembly errors. Said arrangement may or may not be disposed at a top end of the cylinder head.
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 to the only embodiments of this plug, described above by way of example, on the contrary embraces all the variants thereof.
[0078] 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. [0078] The representations show a fastening at the upper end edge of the cylinder head, but this can be arranged lower down on the intake face of the cylinder head.

Claims

Revendications Claims
[Revendication 1] Agencement de fixation en biais d’une bride de fixation (19) d’un carter [Claim 1] Fixing arrangement through a fixing flange (19) of a housing
(42) d’un élément de moteur thermique à une paroi de fixation d’une culasse (15) dudit moteur, ladite culasse comprenant un trottoir de fixation (30) contre lequel est fixé en appui la bride de fixation (19) grâce à un dispositif de fixation (120), (42) of a heat engine element to a fixing wall of a cylinder head (15) of said engine, said cylinder head comprising a fixing sidewalk (30) against which the fixing flange (19) is fixed in abutment by means of a fixing device (120),
Caractérisé en ce que ledit dispositif de fixation comprend un insert (110) de guidage et de fixation monté en appui contre la paroi d’une entaille (100) creusée dans la culasse depuis la face du trottoir de fixation (30). Characterized in that said fixing device comprises an insert (110) for guiding and fixing mounted in abutment against the wall of a notch (100) hollowed out in the cylinder head from the face of the fixing sidewalk (30).
[Revendication 2] Agencement de fixation selon la revendication 1 , caractérisé en ce que l’ insert (110) comprend un conduit tubulaire (25) s’étendant en biais depuis la face trottoir de fixation de la culasse. [Claim 2] A fixing arrangement according to claim 1, characterized in that the insert (110) comprises a tubular duct (25) extending at an angle from the sidewalk fixing face of the cylinder head.
[Revendication 3] Agencement de fixation selon la revendication 1 ou 2, caractérisé en ce que l’entaille (100) comporte une section d’ appui (101) parallèle au trottoir de fixation (30). [Claim 3] A fixing arrangement according to claim 1 or 2, characterized in that the notch (100) has a support section (101) parallel to the fixing sidewalk (30).
[Revendication 4] Agencement de fixation selon la revendication 3, caractérisé en ce que l’entaille (100) comporte une face latérale (102) d’ appui orthogonale à la section d’appui (101), en extrémité basse du lamage et tournée vers le haut de la culasse (15). [Claim 4] Fixing arrangement according to claim 3, characterized in that the notch (100) comprises a lateral face (102) bearing orthogonal to the bearing section (101), at the lower end of the counterbore and turned. up the cylinder head (15).
[Revendication 5] Agencement de fixation selon la revendication 4, caractérisé en ce que l’ insert (110) présente une base de vissage (111) portant le conduit tubulaire (25) et adaptée pour être logée dans l’entaille (100). [Claim 5] A fixing arrangement according to claim 4, characterized in that the insert (110) has a screw base (111) carrying the tubular duct (25) and adapted to be housed in the notch (100).
[Revendication 6] Agencement de fixation selon la revendication 5, caractérisé en ce que la base de vissage (111) de l’ insert comporte une face d’appui frontale (115) et une face d’appui latérale (112) montées en appui respec tivement contre la section d’appui (101) et la face d’appui latérale (102) de l’entaille. [Claim 6] Fixing arrangement according to claim 5, characterized in that the screwing base (111) of the insert comprises a front bearing face (115) and a lateral bearing face (112) mounted in abutment. respectively against the bearing section (101) and the lateral bearing face (102) of the notch.
[Revendication 7] Agencement de fixation selon la revendication 5 ou 6, caractérisé en ce que la base de vissage (111) présente une forme parallélépipédique. [Claim 7] Fixing arrangement according to claim 5 or 6, characterized in that the screw base (111) has a parallelepipedal shape.
[Revendication 8] Agencement de fixation selon la revendication 5 ou 6, caractérisé en ce que la base de vissage (111) est cylindrique. [Claim 8] A fixing arrangement according to claim 5 or 6, characterized in that the screw base (111) is cylindrical.
[Revendication 9] Agencement de fixation selon la revendication 8, caractérisé en ce que la deuxième paroi d’ appui de la base cylindrique de vissage (111) comprend un méplat (114). [Claim 9] A fixing arrangement according to claim 8, characterized in that the second supporting wall of the cylindrical screwing base (111) comprises a flat (114).
[Revendication 10] Agencement de fixation selon l’une quelconque des revendications 5 à [Claim 10] A fastening arrangement according to any one of claims 5 to
9, caractérisé en ce que la profondeur de l’entaille (100) est inférieure ou égale à l’épaisseur de la base de vissage (111) de l’insert (110). 9, characterized in that the depth of the notch (100) is less or equal to the thickness of the screw base (111) of the insert (110).
[Revendication 11] Agencement de fixation selon l’une quelconque des revendications 5 à [Claim 11] A fastening arrangement according to any one of claims 5 to
10, caractérisé en ce que la base de vissage (111) comprend un orifice traversant (116) de révolution selon un axe s’étendant en biais par rapport à la face d’appui frontale (115). 10, characterized in that the screw base (111) comprises a through orifice (116) of revolution about an axis extending obliquely with respect to the front bearing face (115).
[Revendication 12] Agencement de fixation selon la revendication 11, caractérisé en ce que la section de passage du conduit tubulaire (25) est dans le prolongement de l’orifice traversant (116). [Claim 12] Fastening arrangement according to claim 11, characterized in that the passage section of the tubular duct (25) is in the extension of the through orifice (116).
[Revendication 13] Agencement de fixation selon l’une quelconque des revendications 1 à [Claim 13] A fastening arrangement according to any one of claims 1 to
12, caractérisé en ce que la bride (19) comprend un canal de passage dans une paroi de fixation en extrémité haute, adaptée pour entourer le conduit tubulaire (25). 12, characterized in that the flange (19) comprises a passage channel in a fastening wall at the top end, adapted to surround the tubular duct (25).
[Revendication 14] Agencement de fixation selon la revendication 13, caractérisé en ce que la longueur du conduit tubulaire est inférieure à la longueur du canal de passage de la bride (19). [Claim 14] Fixing arrangement according to claim 13, characterized in that the length of the tubular duct is less than the length of the passage channel of the flange (19).
PCT/EP2020/056604 2019-05-24 2020-03-12 Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head WO2020239282A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2021568894A JP7519383B2 (en) 2019-05-24 2020-03-12 Notch on cylinder head intake surface for angled installation on engine cylinder head
KR1020217040341A KR20220012868A (en) 2019-05-24 2020-03-12 Notch on cylinder head inlet surface for beveled attachment to engine cylinder head
EP20709218.0A EP3976947B1 (en) 2019-05-24 2020-03-12 Notch on a cylinder head inlet surface for oblique attachment on an engine cylinder head
CN202080037679.5A CN113994077A (en) 2019-05-24 2020-03-12 Recess for inclined fixing on cylinder head air inlet surface of engine cylinder head

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
FR1905475 2019-05-24

Publications (1)

Publication Number Publication Date
WO2020239282A1 true WO2020239282A1 (en) 2020-12-03

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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

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918912A (en) * 1996-12-21 1999-07-06 Daimler-Benz Ag Arrangement for mounting a pipe end flange
DE10029241A1 (en) * 2000-06-14 2001-12-20 Opel Adam Ag Cylinder head mounting at the cylinder block of an IC motor has claws at the inlet and exhaust manifold flanges to engage recesses with screw bolts to dispense with conventional bolts and give more space for the gas channels
US20050268602A1 (en) * 2004-03-05 2005-12-08 Benteler Automobiltechnik Gmbh Arrangement for securely mounting an exhaust manifold to the cylinder head of an internal combustion engine
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
DE102014217314A1 (en) 2014-08-29 2016-03-17 Volkswagen Aktiengesellschaft Intercooler for an internal combustion engine and arrangement of an intercooler on a cylinder head of an internal combustion engine
US20170227043A1 (en) * 2016-02-04 2017-08-10 Eberspächer Exhaust Technology GmbH & Co. KG Fastening device for fixing an exhaust manifold on a cylinder head of an internal combustion engine

Family Cites Families (15)

* 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
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
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
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
JP5440806B2 (en) 2011-04-05 2014-03-12 株式会社デンソー Intake device
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918912A (en) * 1996-12-21 1999-07-06 Daimler-Benz Ag Arrangement for mounting a pipe end flange
DE10029241A1 (en) * 2000-06-14 2001-12-20 Opel Adam Ag Cylinder head mounting at the cylinder block of an IC motor has claws at the inlet and exhaust manifold flanges to engage recesses with screw bolts to dispense with conventional bolts and give more space for the gas channels
US20050268602A1 (en) * 2004-03-05 2005-12-08 Benteler Automobiltechnik Gmbh Arrangement for securely mounting an exhaust manifold to the cylinder head of an internal combustion engine
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
DE102014217314A1 (en) 2014-08-29 2016-03-17 Volkswagen Aktiengesellschaft Intercooler for an internal combustion engine and arrangement of an intercooler on a cylinder head of an internal combustion engine
US20170227043A1 (en) * 2016-02-04 2017-08-10 Eberspächer Exhaust Technology GmbH & Co. KG Fastening device for fixing an exhaust manifold on a cylinder head of an internal combustion engine

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EP3976947A1 (en) 2022-04-06
JP7519383B2 (en) 2024-07-19
JP2022533679A (en) 2022-07-25
FR3096405A1 (en) 2020-11-27
EP3976947B1 (en) 2023-05-03
CN113994077A (en) 2022-01-28
KR20220012868A (en) 2022-02-04

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