Classifications

• • 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
  • F02M35/104—Intake manifolds
  • F02M35/108—Intake manifolds with primary and secondary intake passages
• • 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
  • F02M35/10026—Plenum chambers
  • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
• • 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
  • F02M35/10072—Intake runners
• • 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
  • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
  • F02M35/10131—Ducts situated in more than one plane; Ducts of one plane crossing ducts of another plane
• • 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
  • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
  • F02M35/10144—Connections of intake ducts to each other or to another device
• • 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
  • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
  • F02M35/10301—Flexible, resilient, pivotally or movable parts; Membranes
• • 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
  • F02M35/1034—Manufacturing and assembling intake systems
  • F02M35/10354—Joining multiple sections together
• • 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
  • F02M35/104—Intake manifolds
  • F02M35/112—Intake manifolds for engines with cylinders all in one line
• • 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
  • F02M35/104—Intake manifolds
  • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
  • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
  • F02B2275/48—Tumble motion in gas movement in cylinder
• • 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
• • 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
  • F02M35/10314—Materials for intake systems
  • F02M35/10321—Plastics; Composites; Rubbers
• • 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
  • F02M35/10314—Materials for intake systems
  • F02M35/10327—Metals; Alloys
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/10—Internal combustion engine [ICE] based vehicles
  • Y02T10/12—Improving ICE efficiencies

Definitions

• the present invention relates to an air intake manifold for an internal combustion engine with one or two rows of cylinders.
• An air intake manifold includes an air distribution chamber body and intake ducts connecting the splitter body to the cylinder head of a row of cylinders by being secured to the cylinder head by clamps.
• the two cylinder heads comprise two inlet ducts separated by cylinder, namely a filling duct and a so-called tumble conduit causing a vortex at the intake in order to homogenize the air-fuel mixture and optimize the combustion efficiency.
• the intake manifold is composed of twelve intake ducts and the difficulties in making such a collector as many ducts arise for the most straight ducts possible and of identical lengths, and at the level of the watertightness of the duct. fastening flange of each pipe to the engine cylinder head and collector space at the center of the six-cylinder Vee section.
• a solution for installing such an intake distributor would consist in aligning side by side the twelve intake ducts of a determined diameter, for example 42mm, but this solution is unrealistic because the width of this distributor would far exceed the volume allocated to the engine.
• the present invention aims to eliminate the above disadvantages of the prior art by providing an air intake manifold for an internal combustion engine with one or two rows of cylinders, comprising a chamber with distribution chamber of air and pairs of separate intake ducts connecting the body to the cylinder head of a row of cylinders being fixed to the cylinder head by clamps, each pair of intake ducts opening into a corresponding cylinder and two intake ducts of the same pair being superimposed close to each other having their flanges for fixing to the adjacent yoke and substantially in the same plane, and which is characterized in that the upper intake ducts are attached to the body of the splitter at their opposite ends to those having the clamps for fixing to the bolt so as to allow their clearance from above the lower ducts to access the bolt. to the fixing screws of the flanges of the latter after having unscrewed the fastening flanges of the upper ducts to the cylinder head.
• each upper duct is fixed to the body of the distributor by an articulation allowing the pipe to pivot from its close position above the lower duct to its position spaced from the latter and vice versa.
• the hinge comprises a rigid lug secured perpendicularly to the end of the upper duct in the opposite direction to the lower duct and a rigid plate secured to the tundish body comprising a window in which the lug of the upper duct engages to maintain the duct. of this conduit to the body and allow the pivoting of the tab in the window during the release of the upper conduit relative to the lower conduit and, where appropriate, the complete withdrawal of the upper conduit.
• each upper duct is fixed to the body of the distributor by a removable flange of this body by translation perpendicularly from above the lower duct.
• the fixing flanges of the upper ducts to the cylinder head are rigidly connected to each other so as to allow the simultaneous release of these ducts relative to the lower ducts.
• the lower ducts are rigidly fixed to the body of the distributor.
• the upper ducts are connected to the body of the distributor by fixing flanges, the latter are rigidly connected to each other.
• the body of the distributor and the intake ducts are made of aluminum and / or a plastic material.
• Figure 1 shows in perspective an air intake distributor according to a first embodiment of the invention
• Figure 2 is a bottom perspective view of the air intake manifold of Figure 1
• Figure 3 is a perspective view similar to that of Figure 1 and showing the pivoting of upper intake ducts at an unobstructed position of the lower inlet ducts of the distributor
• Figure 4 is an enlarged sectional view along the line IV-IV of Figure 3
• Figure 5 is a perspective view of the air intake manifold of Figure 3 without the upper intake ducts
• Figure 6 is a perspective view showing an air intake manifold according to a second embodiment of the invention.
• the reference numeral 1 designates an air intake manifold that can be used for a two-row six-cylinder vee internal combustion engine.
• This distributor comprises a body 2 provided with an air distribution chamber receiving air through an air inlet, not shown, and intake ducts 3, 4 connecting the body 2 to the yokes of the rows of cylinders .
• the intake ducts 3, 4 are arranged in pairs of superimposed ducts, that is to say, for each pair, two lower ducts 3 and upper 4 arranged parallel to each other one above the other.
• Each pair of intake ducts 3, 4 opens into a corresponding cylinder of the engine and the various ducts 3, 4 are fixed to the corresponding cylinder head of this engine by respective flanges 5, 6 secured to the ducts and fixed to the corresponding cylinder head by fastening screws 7.
• the intake ducts 3, 4 are slightly curved, approaching a substantially rectilinear shape over most of their length and have substantially identical lengths.
• the flanges 5, 6 for fixing the intake ducts 3, 4 have their bearing faces on the corresponding yoke located in the same plane. and are very close to each other so that access to the fixing screw 7 of the flanges 5 of the lower ducts 3 is very difficult because it is masked by the immediate presence of the flanges 6 of the upper intake ducts 4
• the invention proposes two embodiments represented on the one hand in Figures 1 to 5 and on the other hand in Figure 6.
• each upper duct 4 opposite to that comprising the fastening flange 6 is held in sealing manner on the flat face of the peripheral edge 8a delimiting the orifice 8 made in the corresponding wall 2a of the body 2 to put in communication fluid the conduit 4 with the air intake chamber via a tab 4a radially integral with the end of this conduit and which is engaged in a window 9a made through a plate 9 secured to the side wall 2a of the body 2 perpendicular thereto.
• the seal between the end of each upper conduit 4 and the corresponding orifice 8 is provided by an annular seal 10 housed in a circular groove 11 formed in the end bearing face of this conduit.
• each upper duct 4 When each upper duct 4 is secured to the cylinder head by its fastening flange 6, a force is exerted on the opposite end of this duct to crush the annular seal 10 between the end of this duct and the flat face of the duct. 8a support, the radial lug 4a of the duct 4 blocking the end 4 of this conduit bears on the face 8a.
• the radial tabs 4a In the mounted position of all the upper ducts 4, the radial tabs 4a extend in opposite directions to the lower ducts 5.
• the flanges 6 of each of the ends of the upper ducts 4 are rigidly connected to each other so as to allow their simultaneous assembly or disassembly.
• the ends of the lower ducts 3 opposite their fastening flanges 5 are integral, for example by welding, the side wall 2a of the body 2 and the fastening flanges 5 are rigidly connected to each other. As shown in FIG. 2, the flanges 5, 6 respectively of the lower 3 and upper 4 ducts are arranged in staggered rows.
• the ducts 4 can be completely removed from their fixing plates 9 to the body 2 as represented in FIG. 5.
• the connection of the tabs 4a with their respective plates 9a constitutes an axis of articulation of the upper conduits 4 relative to the body 2 and which extends parallel to the side wall 2a because the plates 9 are located at the same level.
• the disengagement of the upper ducts 4 by pivoting relative to the lower ducts 3 thus allows an operator to easily access the screws 7 of fixing the flanges 5 to disassemble the inlet manifold 1 of the engine or also unscrew one or more of the fastening screws 7 flanges 5 to repair a possible leakage between the flanges 5 and the cylinder head of the engine on which they are in supported by annular seals as is known in itself.
• the mounting of the air intake manifold 1 to the engine is also very simple since it is sufficient first of all to fix the distributor 1 to the corresponding cylinder head by the fixing screws 7 of the flanges 5 of the lower ducts 3 and then a once this operation is completed, to introduce the tabs 4a of the upper ducts 4 into their respective windows 9a of the plates 9 and to simultaneously tilt the upper ducts 4 towards the lower ducts 3 to the position at which the ducts 4 can be fixed at the cylinder head by the fixing screws 7 of the flanges 6.
• FIG. 6 differs from that of FIGS. 1 to 5 in that the upper ducts 4 comprise, at their ends opposite the flanges 6, flanges 13 for fastening these ducts to the side wall 2a of the body 2. by means of fixing screws 14.
• the flanges 13 are rigidly connected to each other.
• the splitter 1 is first connected to the motor by fixing the lower ducts 3 to the engine cylinder head by the fixing screws 7 of the flanges 5 and then fixing the upper ducts 4 to the engine and to the body 2 of the distributor by the fixing screws 7, 14 of the flanges 6, 13.
• the assembly or disassembly of the upper ducts 4 of the embodiment of FIG. 6 is carried out simply by a translation of these ducts perpendicular to the lower ducts 3.
• the body 2 of the distributor 1 and the ducts 3, 4 can be made of aluminum and / or in a plastic manner.
• the ends of the upper ducts 4 can be fixed to the body 2 of the distributor 1 by latching means for disassembly of these ends of the body 2 by simple manual pulling.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Geometry (AREA)
• Manufacturing & Machinery (AREA)
• Characterised By The Charging Evacuation (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35636858

Family Applications (1)

Country Status (3)

Cited By (1)

Citations (1)

Family Cites Families (5)

• 2005
  • 2005-06-02 FR FR0505589A patent/FR2886684B1/fr not_active Expired - Fee Related
• 2006
  • 2006-05-31 EP EP06794472A patent/EP1888908A2/de not_active Withdrawn
  • 2006-05-31 WO PCT/FR2006/050495 patent/WO2007003829A2/fr not_active Application Discontinuation

Patent Citations (1)

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