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
  • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
  • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
  • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
  • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
  • F02D9/1095—Rotating on a common axis, e.g. having a common shaft
• • 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
  • F02M35/10255—Arrangements of valves; Multi-way valves
• • 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
  • F02M35/1034—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
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
  • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
  • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
  • F02D9/107—Manufacturing or mounting 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
  • F02M35/104—Intake manifolds
  • F02M35/112—Intake manifolds for engines with cylinders all in one line
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
  • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
  • F05C2225/08—Thermoplastics

Definitions

• Device for regulating the flow in a portion of a conduit or a passage and collector comprising such a device
• the present invention relates to the field of controlling the flow of fluids, in particular gaseous fluids, and more particularly in the context of the intake of air for heat engines, for example in relation to intake manifolds, but also of more generally, the devices for controlling the flow in a passage by means of a member disposed in this passage and which can be manipulated by a control pin.
• the present invention more specifically relates to a device for regulating the flow in a portion of a conduit or a passage, an intake manifold comprising such a device and a method of manufacturing such a manifold.
• a device for regulating or controlling the flow or flow in a passage of a portion of conduit or the like is generally carried out, during one or more particular operations, either by mounting a transverse insert carrying the adjusting member in said pipe portion, after cutting an opening in the latter, either by fitting an intermediate duct segment provided with said adjusting member between two spaced apart parts said portion of conduit.
• the object of the present invention is in particular to overcome at least some of these drawbacks.
• each valve / control shaft assembly is integrated into the structure of the portion of duct concerned or into the structure of the part comprising at least one portion of duct, at level '' a passage opening being trapped, with the possibility of rotation, between two complementary parts forming by assembly, by friction or vibration welding, said portion of conduit or said part and by being mounted in corresponding receiving recesses formed in the walls portions of conduits and / or in one or more separate or offset bearing (s) or corresponding (s).
• FIG. 1 is a side elevational view in section of a portion of duct comprising a regulating device according to the invention
• Figure 2 is a view in direction A of the object of Figure 1
• Figures 3 are perspective views and partially in section of part of an intake manifold, before (Fig. 3A) and after (Fig.
• FIG. 3B mounting of a control shaft provided with valves at level d 'a part of a manifold wall or distributor carrying constituent parts of the intake pipes, according to a first embodiment of the invention
• Figure 4 is a detail view on another scale of a part of the object shown in Figure 3B
• Figures 5 are partial sectional and perspective views of part of an intake manifold, at the through openings of the pipes, before mounting of an axis provided with valves (Fig. 5A), after mounting such an axis (Fig. 5B) and after mounting the transmission mechanism and the actuator (Fig.
• FIG. 5C is a second embodiment of the invention
• Figure 6 is a detail view in direction B of the plug shown in Figure 5 (the transmission mechanism 14 having been removed)
• Figure 7 is a schematic detail view and in side elevation of an intake manifold surrounded by a sealed enclosure
• Figures 8 are partial schematic representations showing the assembly by vibration welding of two parts of a collector at a passage (Figures 8A, 8B and 8C: front perspective views) and its sealing by assembling a third part at the level of the external face of said passage (FIG. 8D: side elevation view)
• FIG. 9 is a sectional view in lateral elevation of the solution represented in FIG. 8D adapted to the passage 15 ′ of the collector represented on Figures 5, according to another embodiment of the invention.
• FIG. 1 The figures of the appended drawings show a device for regulating the flow of a fluid, in particular gaseous, in at least one portion of duct 2, a passage, an opening or the like (for example a portion of any fluid circulation circuit ) by means of a valve 3 or a similar rotary closure member, carried by a control shaft 4.
• each valve 3 / control shaft 4 assembly is integrated into the structure of the portion of duct 2 concerned or in the structure of part 1 comprising at least one portion of duct 2, at the level of a passage opening while being trapped, with faculty of rotation, between two complementary parts 2 ′, 2 "or 1" , 1 '”forming by assembly said portion of conduit 2 or said part 1 and being mounted in corresponding recesses 5, 5' formed in the walls of portions of conduits 2 and / or in one or more bearing (s) separated or deported ( s) corresponding (s) 6 present on at least one of the parts 1 ", 1 '" forming the part 1.
• the invention applies equally to a portion of conduit 2 or to a passage opening alone, only to several portions of ducts 2 or openings connected or not connected to one another and arranged between them in any way.
• the regulating device can comprise a set of valves 3 / axis 4 extending to several portions of conduits 2 or passage openings of the part 1 each comprising a valve 3, all these valves 3 being mounted or formed on a single control axis 4.
• portion of conduit in the present any circular passage or not which can be closed by a movable member of the valve type. This passage can, if necessary, be reduced to a simple through opening or passage opening, the axial or longitudinal dimension of the duct portion 2 then being very reduced, or even zero.
• the valves 3 may be located in a middle part of the conduits 2 or at the level of the through openings of such conduits.
• control axis 4 is sandwiched between the parts 2 ', 2 "constituting said at least one portion of conduit 2 or said part 1, at the level of the assembly zone and of junction of said parts 2 ', 2 “or 1", 1' "(see Figures 1, 2 and 7).
• assembly or junction lines 2 ' resulting from the intimate contact of the connection between the assembly or junction surfaces of the two constituent parts 2' and 3, may be located in a perpendicular plane to the axis of the duct portion 2 concerned, but also extend in other directions in order to facilitate the assembly of the parts 2 ′ and 2 ".
• the assembly and junction surfaces are defined in such a way that they open onto at least one of the receiving recesses 5, 5 ′ and cut the portion of conduit 2 concerned to allow the installation of the 'control shaft assembly 4 / valve (s) 3 in at least one of the constituent parts 2' and 2 "or between them.
• control axis 4 is attached at the level of one of the ends of the conduit 2, by being fixed to portions of walls (connecting for example two adjacent conduits) in places offset from the wall of the duct.
• the support and guiding functions of the control axis 4 carrying the valve (s) 3 with a view to maintaining and rotating it can be accomplished by means of various technical solutions described, by way of non-limiting examples, below. after.
• the support of the control axis 4 and its guiding in rotation can be ensured, at least in part, by at least one bearing 6 outside the wall or walls of the portion (s) of conduit (s) 2 or of the part 1 considered, if necessary formed by assembling two complementary parts each present on the 'one of parts 1 "and 1'" or preformed exclusively on one of the two aforementioned parts.
• control axis 4 can be mounted with guiding in rotation at one or more bearings 6 offset (s) relative to the walls of the conduit (s) 2 and formed (s) on the 'a 1 "of the two parts 1", the "of the part 1, the fixing and the holding being obtained by elastic engagement or snap-fitting of said axis 4 in said bearings 6, 12 and said axis 4 being trapped between said parts 1" , l "without there being contact with the other l" of said two parts 1 ", l", neither at the level of the axis 4 or of the valves 3, nor at the level of the bearings 6.
• the bearings 6 can for example be formed by a structure having a general U-shape comprising one or two wings or tongues 6 'deformable or resilient forming between them, or with additional formation, said bearings 6 provided with an introduction opening narrowed adapted to elastically retain the axis 4 after its introduction by spacing of said wings provided with retention noses 6 "opposite (see in particular Figures 3, 4 and 5).
• At least one of the support and guide bearings 7 in rotation of the control axis 4 can be formed by cooperation of the opposite receiving recesses 5, 5 ′ formed in the junction zones of the walls of the two parts 2 ′, 2 "or 1", 1 '"forming the portion (s) of conduit (s) 2 or the part 1, said one or more support and guide bearings 7 being optionally made watertight with or without the interposition of an attached sealing part 8.
• said control axis 4 may comprise one or more cylindrical protrusions 9 or annular (discoidal) protrusions 9 ', formed of a integral with said axis 4 or attached to the latter by overmolding or mounting, and intended to cooperate with the support and guide bearings 6, 7 or with stops 10 for locking in translation of said control axis 4.
• the protrusions 9, 9 ' may advantageously consist of a material resistant to wear and / or having a reduced coefficient of friction with the material constituting the support and guide bearings 6 and 7, the annular protrusions 9 in the form of sleeves being able to have discoidal stops 9 "at their opposite longitudinal ends so as to form translation locking sites for the axis 4 after its assembly.
• control shaft 4 may also include one or more pre-assembled rotary guide bearings 11, trapped and locked in support bearings 12 formed during the assembly of the two parts 2 ′ and 2 ′′ or 1 ′′ and 1 ′′ composing the portion (s) of conduits 2 or the part 1.
• the pre-assembled rotational guide bearings 11, for example in the form of ball or needle bearings, may possibly be completely encapsulated in the support bearings 12 so as to protect them and block them in translation, which will make the stops redundant
• control axis 4 can be achieved either by using only one of the solutions described above, or by mixing them.
• the entire control shaft 4 / valve (s) 3 can be obtained either by fixing (for example welding, screwing, clipping, folding or other) of metal valves on an axis (metallic or not), or by overmolding the valves on a metal or plastic axis (the protuberances 9 for guiding or the bearings 11 being placed on the axis before or after the overmolding), or by molding in one piece of a plastic shaft / valves assembly.
• the assembly between the parts 2 'and 2 "constituting the portion of conduit 2 and / or between the parts 1" and 1' “constituting the part 1 may also be carried out in different ways, such as for example mechanical connection, bonding, welding or other, depending on the nature of the material constituting said parts 2 'and 2 "or 1" and 1 ".
• control axis 4 may be located centrally with respect to the valve (s) 3 or, if appropriate, eccentric or off-center, so as not to disturb the flow in position d 'maximum opening or passage of said valves 3 (on this subject see French patent application No. 99,02531 in the name of the applicant).
• the two parts 2 ′ and 2 ′′ or 1 ′′ and the ′′ constituting the portion of conduit 2 and / or the part 1 are made of thermoplastic material and are assembled by vibration welding, the planes of the joint being configured and arranged in such a way that they authorize, if necessary, the installation of the control shaft 4 / valve (s) 3 assembly on or in one at less of said two parties or between them.
• Sealing at the passages of the axis 4 can be obtained by forming a lining at the time of assembly, by a separate sealing element added before or after assembly or by adding an additional part or part 17 by vibration welding at the external face of the passage (s) concerned, this additional part possibly, if necessary, enclosing a support and guide bearing 6, 12 axially sealed.
• the present invention also relates to an intake manifold or distributor 1 comprising at least one, and preferably several, intake pipes 2, in the form of portions of conduits intended to connect the chamber of the manifold or distributor to the cylinder heads, and constituted by assembling at least two complementary parts 1 ", 1 '" in thermoplastic material by vibration welding (see FIGS. 3 to 5 and 7 to 9).
• This intake manifold or distributor 1 is characterized in that at least some of the pipes 2 or passage openings of the latter, and preferably all, include a regulation device as described above, integrated into the structure of said manifold or distributor 1 and forming a flow regulation assembly comprising several valves 3 mounted or formed on a single control axis 4 passing through said intake pipes 2 or passage openings and provided at one of its ends with a means of securing 13, in particular at least of coupling in rotation, with a transmission mechanism 14 connected to an actuator 14 'or with an actuator directly.
• a regulation device as described above, integrated into the structure of said manifold or distributor 1 and forming a flow regulation assembly comprising several valves 3 mounted or formed on a single control axis 4 passing through said intake pipes 2 or passage openings and provided at one of its ends with a means of securing 13, in particular at least of coupling in rotation, with a transmission mechanism 14 connected to an actuator 14 'or with an actuator directly.
• Said actuator 14 ′ may be of pneumatic, electrical, mechanical or other nature.
• control axis 4 provided with valves 3 extends transversely near one of the ends of the intake pipes 2, namely at its junction zone with the wall l of the manifold chamber 1 or at its junction zone with the mounting plate on the cylinder heads, the support bearings 12 and, where appropriate, guide bearings 6, 7, as well as the locking stops in translation 10 of the control axis 4, being at least partially, and preferably entirely, formed on said wall l 'of the manifold chamber or on said fixing plate.
• stops 10 may be formed either by protrusions of the wall l '( Figures 3), or by recesses of the latter ( Figures 5).
• Said control shaft 4 / valves 3 assembly may in particular be located at the intake manifold interface 2 / manifold chamber 1 or intake manifold 2 / cylinder head interface.
• said assembly could be sandwiched between two parts 1 "and 1 '" forming the chamber of said manifold or distributor and having a plane or an assembly or junction line crossing said tubing interface region. / manifold at the level of the openings of said pipes in the chamber of said manifold (FIGS. 3 to 5).
• the control shaft 4 freely and without contact passes through the walls of the intake pipes 2 concerned or extends through the openings of said pipes 2 opening into the chamber of the manifold 1, the assembly of the constituent parts 1 ", 1 '" of the manifold 1 forming a sealed enclosure 15 around the junction zones of all of said intake pipes 2 with the wall l ′ of the collector 1 or of the opening of the said pipes 2 in the chamber of the collector 1, the part formed by the control shaft 4 / valves 3 assembly being mounted by engagement or snap-fastening in bearings 6, 12 preformed on the wall l 'of one 1 "of parts 1", l "forming the collector 1, at the level of cylindrical protuberances 9 or portions of bearings 11 formed or attached to the axis 4, the other l" of said 1 "pieces, the" emp possibly preventing any extraction of the axis 4 of said bearings 6, 12 after assembly of the two parts 1 "and the".
• said sealed enclosure 15 is completed at the level of the passage 15 ′ for the outgoing control axis portion 4 carrying the means for securing 13 or for the operating rod 14 "returning from the transmission mechanism 14, by an annular axial plug 16, hot-pressed or force-fitted or welded at the level of said passage 15 '(this plug possibly carrying means for sealing the passage of the axis 4 or ensuring by itself said tightness while allowing the rotation of the operating rod 14 "and / or of the mechanism 14).
• the sealed enclosure 15 formed by the assembly of the two parts 1 "and the" of the manifold 1 is closed, at the passage 15 'for the outgoing control pin portion 4 carrying the securing means 13 or for the re-entrant operating rod 14 "of the mechanism transmission 14, by securing, by vibration welding, at the opening or the external face of said passage 15 ', a third hollow portion 17 containing at least one component of the transmission mechanism 14 and / or at least one bearing 6, 12 with axial sealing, this third part 17 being joined after the part 1 has been formed.
• the axis 4 / valves 3 assembly extends entirely in the sealed enclosure 15, the axis 4 not crossing the zones or lines of assembly by welding, the two valves 3 at the opposite ends of the axis 4 being mounted in cantilever and the valve 3 located near the passage 15 'being provided with an axial blind channel 18, for example with rectangular section , for receiving by fitting the end of the operating rod 14 "and forming the securing means 13.
• the securing means 13 may, alternatively, also be in the form of a square section extension of the control shaft 4, connected to a female part having a sleeve reception of complementary shape (for example by clipping, gluing, force fitting and / or hot fitting or the like) forming part of the transmission mechanism 14 connected to an actuator.
• the actuating mechanism of the control axis 4 may authorize the movement of the valves 3 between an open position and a closed position (total or not), the extreme positions being defined by one or more mechanical stops linked to the 'control axis and preferably located near the actuator 14'.
• the movement between the open and closed positions can be done either all or nothing, or proportionally.
• the connection between the control axis 4 and the transmission mechanism 14 can take place either outside, or preferably inside the sealed enclosure formed during the assembly of the two component parts 1 " and 1 '"of the manifold 1, the aforementioned female or male part then extending, in leaktight manner, through a corresponding passage orifice 15'.
• the present invention also relates to a method of manufacturing an intake manifold or distributor 1 such that described above, from at least two parts 1 ", 1 '" of thermoplastic material.
• This process essentially consists in supplying a first part 1 "of an intake manifold 1, to be installed on or in this first part 1" and in recesses 5, 5 ′ and / or bearing portions 6, 12 adapted support and / or guide, a control axis comprising several valves 3 each arranged in a passage opening or a passage of part 2 'of intake manifold 2 corresponding, to provide at least a second part " of the intake manifold 1 comprising, where appropriate, the complementary parts 2 "of the intake pipes 2 and at or placing them in the assembly position with the first part 1" by trapping or sandwiching the axis of control 4 with the valves 3 and, finally, to assemble by vibration welding said at least two parts 1 ", the" intake manifold 1.
• the second part 1 " can either participate directly in the imprisonment of the axis 4 / valves 3 while being in contact t direct with said assembly (sandwiched and pinching of axis 4 between the two parts 1 "and 1", possibly at the level of the assembly line between the two parts 2 “and 2" of the portions of conduit 2 ), or constitute only a cover portion or a cover with respect to the first part 1 ", the latter ensuring, if necessary, only the support and the guiding in rotation of the axis 4 / valves 3 assembly.
• the assembly of the axis 4 / valves 3 assembly is achieved by fitting or snapping onto said first part 1 "and the assembly of the two parts l" and the “realizes a sealed enclosure 15 around said assembly with the exception of a drive passage 15 ', the latter being made leaktight when coupling the transmission mechanism 14 with the control axis 4.
• the basis of the invention consists in first of all mounting the control pin 4 / valve (s) 3 assembly on a part 1 ", 2 'or between two parts 1" and the ", 2 'and 2" (said assembly possibly being held in place by bearing portions 5, 5', 6 or 11) then, in a second step, to carry out the operation of assembling the two parts 1 "and 1 '", 2' and 2 "constituting the portion of conduit 2, the collector or distributor 1 or any other object or structure intended to include a regulation device according to the invention.
• the invention makes it possible to arrive at a technical solution reducing to the minimum the operations necessary for the installation and the mounting of the regulation device (without interfering with the existing manufacturing process and without lengthening it), compact and leading to a full integration of said regulating device (protection against shocks), while guaranteeing a reliable seal.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
• Valve Housings (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)
• Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
• Shaping Of Tube Ends By Bending Or Straightening (AREA)
• Characterised By The Charging Evacuation (AREA)
• Air-Flow Control Members (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9549482

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (27)

Citations (5)

Family Cites Families (10)

• 1999
  • 1999-08-31 FR FR9910999A patent/FR2797931B1/fr not_active Expired - Lifetime
• 2000
  • 2000-08-31 AT AT00960770T patent/ATE334305T1/de not_active IP Right Cessation
  • 2000-08-31 US US10/069,507 patent/US6895926B1/en not_active Expired - Lifetime
  • 2000-08-31 WO PCT/FR2000/002413 patent/WO2001016473A1/fr not_active Ceased
  • 2000-08-31 DE DE60029598T patent/DE60029598T2/de not_active Expired - Lifetime
  • 2000-08-31 JP JP2001519999A patent/JP4549596B2/ja not_active Expired - Fee Related
  • 2000-08-31 EP EP00960770A patent/EP1212525B1/fr not_active Expired - Lifetime

Patent Citations (5)

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