WO2008010420A1 - Dispositif d'admission d'air pour moteur à combustion interne - Google Patents

Dispositif d'admission d'air pour moteur à combustion interne Download PDF

Info

Publication number
WO2008010420A1
WO2008010420A1 PCT/JP2007/063445 JP2007063445W WO2008010420A1 WO 2008010420 A1 WO2008010420 A1 WO 2008010420A1 JP 2007063445 W JP2007063445 W JP 2007063445W WO 2008010420 A1 WO2008010420 A1 WO 2008010420A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
ladder
portions
bore
combustion engine
Prior art date
Application number
PCT/JP2007/063445
Other languages
English (en)
Japanese (ja)
Inventor
Atsushi Ito
Eiji Sakagami
Masaya Otsuka
Original Assignee
Aisin Seiki Kabushiki Kaisha
Toyota Jidosha Kabushiki Kaisha
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 Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha filed Critical Aisin Seiki Kabushiki Kaisha
Publication of WO2008010420A1 publication Critical patent/WO2008010420A1/fr

Links

Classifications

    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0284—Rotary slide valves
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
    • F02B27/0215—Oscillating pipe charging, i.e. variable intake pipe length charging
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0247—Plenum chambers; Resonance chambers or resonance pipes
    • F02B27/0263—Plenum chambers; Resonance chambers or resonance pipes the plenum chamber and at least one of the intake ducts having a common wall, and the intake ducts wrap partially around the plenum chamber, i.e. snail-type
    • 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 intake device for an internal combustion engine.
  • Patent Document 1 discloses an intake device for an internal combustion engine as described above.
  • An intake device for an internal combustion engine shown in Patent Document 1 includes an intake air distribution device casing (corresponding to an intake manifold) and a switching roller (corresponding to a single rotary valve) provided inside the intake air distribution device casing. Yes.
  • the intake air distribution device casing includes a plurality of individual intake pipes and a plurality of short individual intake pipes to form a plurality of air supply passages for supplying air individually to a plurality of cylinders of the internal combustion engine.
  • the switching roller includes a plurality of valve portions having openings so as to be integrally rotatable, and each valve portion opens and closes an individual intake pipe.
  • Each nozzle portion of the switching roller is provided with a seal cage (corresponding to a seal material).
  • the seal cage includes a pair of ring elements (corresponding to a ring portion) and a seal strip (corresponding to a ladder portion) connecting the pair of ring elements.
  • Each ring element is inserted into a groove located at the end of the valve portion.
  • FIG. This figure shows a state in which the valve unit 11 closes the supply switching port 7.
  • a ladder engaging portion 64 disposed inside the sealing material of the ladder portion 62 is provided on the ladder portion 62 of the sealing material 60.
  • the ladder engaging portion 64 is engaged with a ladder engaging recess 76 provided on the outer peripheral side of the valve portion 11.
  • the inner surface of the ladder engaging recess 76 is opposite to the side where the supply switching port 7 of the intake manifold 1 exists with respect to the ladder engaging portion 64.
  • a seal interval E is provided between the inner surface portion 77 located on the side and the ladder engaging portion 64.
  • the valve part 11 and the sealing material 60 are formed by resin molding. For this reason, if the distance of the seal interval E is narrow, depending on manufacturing errors occurring in the valve portion 11 and the seal material 60, the ladder engaging portion 64 and the inner surface portion 77 of the ladder engaging recess 62 Is in contact. Then, the ladder part 62 is pressed against the bore part 8, and the switching operation of the valve part 11 becomes heavy.
  • the seal interval E is provided so as to avoid contact between the ladder engaging portion 64 and the inner surface portion 77 regardless of manufacturing errors occurring in the valve portion 11 and the sealing material 60.
  • the seal interval E has been larger than the valve interval C provided between the outer peripheral edge 15a of the valve portion 11 and the bore portion 11.
  • Patent Document 1 Special Table 2001—519006
  • An object of the present invention is to provide an intake device for an internal combustion engine that can prevent the above-described collision noise and can be obtained at low cost.
  • a first characteristic configuration of an intake device for an internal combustion engine of the present invention is an intake manifold having a plurality of air supply passages for supplying air to a plurality of cylinders of an internal combustion engine.
  • the plurality of valve sections are configured to switch the air supply mode of the plurality of air supply paths to a rotary valve provided with a plurality of valve sections acting individually on the plurality of air supply paths.
  • the intake switch is in a state in which the supply switching port of the hold is opened and opened, and in a closed state in which the plurality of valve portions closes the supply switching port.
  • the valve includes a pair of ring portions that are supported by the hold so as to be capable of rotational switching, and are fitted on both ends of the valve portion in the direction of the rotation axis, respectively, and a ladder portion that connects the pair of ring portions.
  • the sealing material mounted on each valve part and the ladder engaging part located inside the sealing material of the ladder part are engaged so that a sealing action is provided between the suction part and the bore part of the intake manifold.
  • a ladder engaging recess provided on the outer peripheral side of the nozzle portion, and when the rotary valve is switched to the closed state, the ladder portion moves along the supply switching port with the valve portion and the bore portion.
  • the rotary valve is In the closed state
  • the inner surface portion of the inner surface of the ladder engaging recess with respect to the ladder engaging portion is located on the side opposite to the supply switching port existing side and the ladder engaging portion.
  • the gap force is configured to be smaller than the noble gap between the valve part and the bore part.
  • the inner surface portion is connected to the ladder when the displacement reaches the seal interval after reaching the central valve portion. Contact the engaging part. Then, the ladder part comes into contact with the valve part, and displacement of the nore part to the bore part is prevented. As a result of the displacement of the central valve portion being prevented, the rotary valve is supported at both ends, and therefore displacement of each end side valve portion to the bore portion is also prevented. Thereby, the collision with the bore part of each valve part can be prevented.
  • the inner surface portion is manufactured so that the seal interval becomes a predetermined interval in consideration of manufacturing errors that may occur in the inner surface portion. Then, during normal operation, the ladder portion can be prevented from being pressed against the bore portion by the inner surface portion.
  • Each end side valve portion can be molded with lower manufacturing accuracy than the center side valve portion.
  • the second characteristic configuration of the present invention includes, as the plurality of valve portions, four valve portions acting individually on four air supply passages supplying air to the four cylinders individually, and the pair of end portions
  • the side valve portion includes two end side valve portions
  • the central side valve portion includes two valve portions.
  • the two valve portions on the end side can be molded with relatively low manufacturing accuracy, and a collision sound between the valve portion and the bore portion is generated. It is difficult to obtain a high-quality intake device that can quietly supply air to the four cylinders of the internal combustion engine at low cost.
  • FIG. 1 is a longitudinal sectional view of an intake device for an internal combustion engine according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along III-III in FIG.
  • an intake device for an internal combustion engine according to an embodiment of the present invention includes an intake manifold 1 and a rotary valve 10 provided in the intake manifold 1, and includes a four cylinder Equipped with the internal combustion engine 2 of the shape.
  • the intake manifold 1 is provided in a state where four intake tubular bodies la are connected to each other, and the four intake tubular bodies la are connected to four intake portions of four cylinders of the internal combustion engine 2 respectively.
  • An air supply path 3 is formed.
  • the intake manifold 1 is provided with a surge tank 4 connected to the four intake pipes la.
  • Each air supply path 3 includes a long port 5 having an intake port 5a opened inside the surge tank 4 and a short port 6 having an intake port 6a opened inside the surge tank 4.
  • the four intake tubular bodies la and the surge tank 4 of the intake manifold 1 are formed by resin molding!
  • the rotary valve 10 is supported by a pair of shaft support portions lb and lb of the intake manifold 1 in a state where the bore portion 8 having the supply switching port 7 of each short port 6 is inserted. Further, the rotary valve 10 is rotated around the axis P by an actuator 9 in which an output shaft 9 a is linked to a support shaft 13 on one end side of the rotary valve 10. As a result, the supply switching port 7 of each short port 6 is switched to the closed state, and the supply switching port 7 of each short port 6 is opened to the open state.
  • each air supply path 3 is a low-speed air supply form. Switch to. Then, each air supply path 3 is connected to a throttle (not shown). The air flowing into surge tank 4 is supplied to the cylinder as combustion air via long port 5 by the suction action of the cylinder.
  • each air supply path 3 supplies the air flowing into the surge tank 4 to the cylinder as combustion air through the short port 6 by the suction action of the cylinder.
  • each air supply path 3 is in a state where the long port 5 is also communicated with the surge tank 4.
  • FIG. 3 shows a longitudinal sectional structure of the rotary valve 10.
  • FIG. 10 is a perspective view of the entire rotary valve 10.
  • FIG. 11 is a front view of the entire rotary valve 10.
  • 12 is a cross-sectional view taken along the line XII-XII in FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG.
  • FIG. 14 is a cross-sectional view taken along the line XIV-XIV in FIG.
  • the rotary valve 10 includes four valve portions 11 arranged concentrically in a line in the direction of the rotational axis P of the rotary valve 10, and intake air at both ends of the rotary valve 10.
  • Support shafts 12 and 13 are provided so as to be rotatably supported by the shaft support portion lb of the hold 1.
  • the four valve portions 11 are formed by resin molding.
  • valve parts 11 are connected by a plurality of connecting members 14 that are formed by resin molding in the circumferential direction of the valve part 11 between the valve parts 11 at the same time as the valve part 11 is molded, and rotate integrally.
  • the four valve portions 11 correspond to the four short ports 6 individually and open and close the supply switching port 7.
  • One support shaft 12 is a metal support shaft in which one end side is embedded in the end portion of the rotary valve 10 so as to be integrally rotatable.
  • the support shaft 12 is rotatably supported in a support hole of the shaft support portion lb via a bearing 18 made of resin and an axle aligning ring 19.
  • the support hole of the shaft support lb is a recessed hole so that air does not leak out of the intake manifold! /
  • the other support shaft 13 is lubricated at the end of the rotary valve 10. It is integrally formed by molding.
  • the support shaft 13 is supported by the shaft support portion lb via the output shaft 9a of the actuator 9.
  • the rotary valve 10 includes a side plate portion 15 positioned at an end portion on the side where the one support shaft 12 is present among the plurality of disc-shaped side plate portions 15 arranged in the direction along the rotational axis P of the rotary valve 10. Is provided with a taper that is slightly smaller than the outer diameter of the side plate portion 15 located at the end portion on the side where the other support shaft 13 is present.
  • Each side plate portion 15 has a circular shape centered on the rotation axis P when viewed in the direction along the rotation axis P.
  • Each valve portion 11 is positioned on the opposite side of the closed region portion 20 with respect to the closed region portion 20 having the bottom plate member 21 and the rotation axis P that is the rotation axis of the valve portion 10. And a reinforcing region 30. Further, the valve portion 11 is positioned between the reinforcing region portion 30 and the closed region portion 20 and has an open region portion 40 having a port hole 41 and the rotation axis P of the valve portion 11. A communication region portion 50 is provided on the side opposite to the region portion 40 and having a communication hole 51.
  • the closed region portion 20 includes the side plate portion 15 located on both ends of the valve portion 11, the bottom plate member 21 connected to the pair of side plate portions 15 and 15, and the outer surface side of the bottom plate member 21.
  • the wall plate member 22 is erected at both ends in the circumferential direction of the pub.
  • the closed region portion 20 includes a recessed portion 23 existing on the outer surface side of the bottom plate member 21, and a plurality of reinforcing ribs 24 erected on the outer surface side of the bottom plate member 21 inside the recessed portion 23. Yes.
  • the reinforcing region portion 30 is constituted by the pair of side plate portions 15, 15 and the reinforcing plate member 31 connected to the pair of side plate portions 15, 15.
  • the reinforcing region portion 30 includes a plurality of reinforcing ribs 32 erected side by side in the circumferential direction of the valve portion on the outer surface side of the reinforcing plate member 31.
  • the open region portion 40 includes one end portion of a cylindrical body 42 constituted by the pair of side plate portions 15, 15, the bottom plate member 21, and the reinforcing plate member 31, and one end of the cylindrical body 42. And the port hole 41 which is a side opening.
  • the communication region portion 50 includes the other end portion of the cylindrical body 42 and the communication hole 51 that is an opening on the other end side of the cylindrical body 42. The port hole 41 and the communication hole 51 are communicated with each other by the cylindrical body 42.
  • the rotary valve 10 includes a sealing material 60 attached to each valve portion 11.
  • FIG. 10 shows an overall perspective view of the sealing material 60.
  • the sheath material 60 includes a pair of circular ring rods 61 and a pair of ring rods 61.
  • a pair of ladder portions 62 and 62 to be connected is used.
  • the pair of ring portions 61, 61 and the pair of ladder portions 62, 62 are integrally formed by resin molding.
  • Each ring portion 61 is provided with an opening 63 disposed on the opposite side of the center of the ring portion 61 from the side where the pair of ladder portions 62 and 62 are present.
  • the outer peripheral surface 62 a of each ladder portion 62 is an arc surface as viewed in the direction along the rotational axis P of the novete portion 11.
  • the outer diameter of each of the ladder portions 62 of the sealing material 60 is slightly smaller than the outer diameter of each ring portion 61.
  • each valve part 11 is attached to the valve part 11 by the following mounting structure. This mounting structure is shown in Figs.
  • ring support portions 70 disposed outside the side plate portion 15 are provided at both ends of the valve portion 11.
  • Each ring support part 70 positioned between the valve parts 11 is constituted by the side plate part 15, the connection members 14, and pin members 71 connected to the connection members 14.
  • the ring support portion 70 has an annular groove shape in which the end surface of each connecting member 14 is a groove bottom and the side plate portion 15 and the pin member 71 are side walls.
  • the ring support part 70 provided on the opposite side of the valve part 11 adjacent to the valve part 11 positioned at both ends of the rotary valve 10 is provided on the outer side of the side plate part 15 and the side plate part 15. And a support member 16 provided in a distributed manner.
  • the ring support portion 70 has an annular groove shape in which the side plate of each support member 16 and the side plate portion 15 serve as side walls.
  • FIGS. 3, 5, 8, and 13 show a state where the sealing material 60 is mounted.
  • FIG. 13 shows the ring part 61 by a two-dot chain line.
  • a pair of ring portions 61, 61 are fitted on the pair of ring support portions 70, 70, respectively.
  • Each ring portion 61 is elastically deformed to the reduced diameter side by the operation force received by contact with the bore portion 8 and the action of the opening 63, and is externally fitted to the ring support portion 70 in this elastically deformed state.
  • the outer peripheral surface 61a of each ring portion 61 is pressed against the inner surface of the bore portion 8.
  • the ring portion 61 when the ring portion 61 is attached to the ring support portion 70, the ring portion 61 is elastically deformed to the enlarged diameter side so that the opening 63 is widened, and is externally fitted to the ring support portion 70 from the widened opening 63.
  • a ladder engaging portion 64 is provided over the entire length of the ladder portion 62 inside the sealing material of each ladder portion 62.
  • the ladder engaging portion 64 has a ridge 64a extending over the entire length of the ladder portion 62. It is.
  • the valve part 11 is provided with a pair of ladder support parts 75 distributed on both outer sides of the closed region part 20 in the valve part rotation direction. Each ladder support portion 75 is configured by the end portion 21 a of the bottom plate member 21 and the wall plate member 22.
  • a ladder engagement recess 76 is provided on the outer surface side of the valve portion of each ladder support portion 75.
  • a pair of ladder engaging portions 6 4 and 64 are engaged in the pair of ladder engaging recesses 76 and 76, respectively.
  • FIG. 4 shows a cross-sectional state of each short port 6 and each valve unit 11 when the rotary valve 10 is switched to the open state.
  • the open region portion 40 of the valve portion 11 faces the supply switching port 7, and the supply switching port 7 is opened by the port hole 41.
  • the communication hole 51 of the communication area 50 faces the intake port 6a of the short port 6, and the supply switching port 7 communicates with the intake port 6a.
  • the outer peripheral surface side of both ring portions 61 of the sealing material 60 protrudes to the outer peripheral side of the open region portion 40 from the outer peripheral edge of the open region portion 40, and in the direction of the rotation axis of the valve portion 11 of the supply switching port 7 In contact with the inner peripheral surface of the bore portion 8 by the elastic force of the ring portion 61 at a position along one end side.
  • the gap between the valve portion 11 and the bore portion 8 on both outer sides in the direction of the rotation axis of the valve portion of the supply switching port 7 is sealed by the ring portion 61, and is connected to the internal combustion engine 2 via the short port 6. It is difficult for turbulent flow to occur near the supply switching port 7 in the supplied air.
  • FIG. 2 is a cross-sectional view of each short port 6 and each valve unit 11 when the rotary valve 10 is switched to the closed state.
  • the closed region portion 20 of the valve portion 11 faces the supply switching port 7, and the side plate portion 15, the wall plate member 22, and the bottom plate member 21 Close supply switching port 7.
  • the outer peripheral surface side of both ring portions 61, 61 of the sealing material 60 protrudes to the outer peripheral side of the closed region portion 20 from the outer peripheral edge of the closed region portion 20, and the rotational axis of the valve portion 11 of the supply switching port 7.
  • the inner peripheral surface of the bore portion 8 comes into contact with the elastic restoring force of the ring portion 61.
  • the pair of ladder portions 62, 62 are distributed on both sides of the supply switching port 7 in the circumferential direction of the valve portion, and the valve portion is positioned along one end side of the valve portion 11 of the supply switching port 7 in the circumferential direction. It is located between 11 and the bore 8.
  • the rotary shaft of the valve portion 11 of the supply switching port 7 Sealed by the force ring portion 61 between the valve portion 11 and the bore portion 8 on both outer sides in the core direction.
  • the supply switching port 7 is sealed by the force ladder portion 62 between the valve portion 11 and the bore portion 8 on both outer sides in the circumferential direction of the valve portion 11.
  • the outer peripheral surface 62a of each ladder portion 62 slightly enters the inside of the valve portion 11 rather than the outer peripheral surface 61a of the ring portion 61, and is not in contact with the inner peripheral surface of the bore portion 8.
  • each valve unit 11 will be described. Of the four valve units 11 of the rotary valve 10, a pair of valve units 11 and 11 respectively positioned at both ends of the rotary valve 10 will be described. Is referred to as an end side valve portion 11a. Further, each of the two valve portions 11 and 11 located at the center portion of the rotary valve 10 is referred to as a center side valve portion l ib.
  • FIGS. 5 and 6 show the relationship between the ladder engaging portion 64 of the central side valve portion 1 lb and the ladder engaging recess 76 in a state where the central side valve portion l ib closes the supply switching port 7. Indicates the status.
  • the inner surface of the ladder engaging recess 76 in the central valve portion l ib includes an inner surface portion 77b.
  • the inner surface portion 77b is located on the opposite side to the side where the supply switching port 7 is present with respect to the ladder engaging portion 64 in a state where the central side valve portion l ib closes the supply switching port 7.
  • a seal interval A is provided between the inner surface portion 77b and a portion of the ladder engaging portion 64 facing the inner surface portion 77b.
  • the seal interval A is provided over the entire length of the central valve portion l ib of the inner surface portion 77b in the direction of the rotation axis, while the central valve portion l ib is connected to the outer peripheral edge 15a of the central valve portion lb.
  • the valve gap C exists between the bore 8 and the inner peripheral surface.
  • the seal interval A and the valve interval C have a relationship of “seal interval A ⁇ valve interval C”.
  • the inner surface 77b of each central valve portion l ib is formed with a manufacturing accuracy that takes into account manufacturing errors that may occur in the inner surface 77b.
  • the seal interval A is provided so that the ladder portion 62 can be prevented from being pressed against the bore portion 8 by the inner surface portion 77b during normal operation.
  • FIGS. 8 and 9 show the engagement between the ladder engaging portion 64 of this end side valve portion 11 a and the ladder engaging recess 76 in a state where the end side valve portion 11 a closes the supply switching port 7. Indicates the state.
  • the inner surface of the ladder engaging recess 76 in the end-side nozzle portion 11a includes an inner surface portion 77a.
  • the inner surface portion 77a is located on the opposite side to the side where the supply switching port 7 is present with respect to the ladder engaging portion 64 when the end side valve portion 11a closes the supply switching port 7. ing.
  • a seal interval D is provided between the inner surface portion 77a and a portion of the ladder engaging portion 64 that faces the inner surface portion 77a. This seal interval D is provided over the entire length of the end-side nobel portion 11 of the inner surface portion 77a in the direction of the rotational axis.
  • the end side valve portion 11a is in a state in which a valve interval C exists between the outer peripheral edge 15a of the end side valve portion 11a and the inner peripheral surface of the bore portion 8.
  • the seal interval D and the valve interval C have a relationship of “seal interval D> valve interval C”.
  • valve interval C in each central side valve portion 1 lb and the valve interval C in each end side valve portion 1 la are the same.
  • FIG. 7 shows a state where the central valve portion l ib is displaced toward the supply switching port 7 by force.
  • the inner surface portion 77b of the ladder engaging recess 76 contacts the ladder engaging portion 64.
  • the outer peripheral surface 61a of each ring portion 61 of the sealing material 60 and the inner peripheral surface of the bore portion 8 are in contact with each other, and the ladder portion 62 is inserted into the bore through the ring portion 61. Since it is supported by the part 8, the ladder part 62 acts as a stop on the central valve part l ib and further displacement of the central valve part 1 lb is prevented.
  • the present invention is also applied to an intake device for an internal combustion engine having a configuration for supplying air to a plurality of cylinders other than four, such as three or six.
  • the first invention can be applied.
  • the seal interval A is provided in one central valve portion excluding the valve portions at both ends of the rotary valve.
  • the seal interval A is provided in the two central valve portions excluding the two valve portions on both ends of the single valve.
  • the present invention can be used for an intake device for an internal combustion engine.
  • FIG. 1 is a longitudinal sectional view of an intake device for an internal combustion engine.
  • FIG. 9 is a cross-sectional view of the ladder engaging portion and the ladder engaging recess of the end side valve portion.
  • FIG. 15 (a) is a cross-sectional view of the conventional valve section in the closing action state, and (b) is a cross-sectional view of the conventional valve section in the displaced state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

Dans le cadre de la présente invention, lorsqu'une soupape rotative qui possède des parties de soupape (11) pour ouvrir et fermer séparément des orifices de changement d'alimentation (7) de passages d'alimentation en air d'un collecteur d'admission d'air est fermée, la partie de surface intérieure (77b) d'une partie évidée d'insertion de gouvernail est positionnée par rapport à une partie d'engagement de gouvernail (64) sur le côté opposé au côté où sont présents les orifices de changement d'alimentation. Dans la partie de soupape centrale (11b) qui exclue les parties de soupape d'extrémité positionnées au niveau des deux extrémités de la soupape rotative, le jeu d'étanchéité (A) entre la partie de surface intérieure (77b) et la partie d'engagement de gouvernail (64) est inférieur au jeu de soupape (C) entre la partie de soupape centrale (11b) et une partie d'alésage (8).
PCT/JP2007/063445 2006-07-20 2007-07-05 Dispositif d'admission d'air pour moteur à combustion interne WO2008010420A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006198354A JP2008025446A (ja) 2006-07-20 2006-07-20 内燃機関用吸気装置
JP2006-198354 2006-07-20

Publications (1)

Publication Number Publication Date
WO2008010420A1 true WO2008010420A1 (fr) 2008-01-24

Family

ID=38956754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063445 WO2008010420A1 (fr) 2006-07-20 2007-07-05 Dispositif d'admission d'air pour moteur à combustion interne

Country Status (2)

Country Link
JP (1) JP2008025446A (fr)
WO (1) WO2008010420A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011125927A1 (fr) 2010-04-01 2011-10-13 新日本製鐵株式会社 Système de mesure de particules et procédé de mesure de particules

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001519006A (ja) * 1997-03-26 2001-10-16 フイルテルウエルク マン ウント フンメル ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 特に多気筒の内燃機関のための吸気管装置で使用される切替ローラ
JP2003083072A (ja) * 2001-09-10 2003-03-19 Keihin Corp 可変吸気装置におけるロータリーバルブのシール構造
JP2004003610A (ja) * 2002-03-01 2004-01-08 Filterwerk Mann & Hummel Gmbh 管路の開閉弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001519006A (ja) * 1997-03-26 2001-10-16 フイルテルウエルク マン ウント フンメル ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 特に多気筒の内燃機関のための吸気管装置で使用される切替ローラ
JP2003083072A (ja) * 2001-09-10 2003-03-19 Keihin Corp 可変吸気装置におけるロータリーバルブのシール構造
JP2004003610A (ja) * 2002-03-01 2004-01-08 Filterwerk Mann & Hummel Gmbh 管路の開閉弁

Also Published As

Publication number Publication date
JP2008025446A (ja) 2008-02-07

Similar Documents

Publication Publication Date Title
JP4623382B2 (ja) 内燃機関用吸気装置
JP4683296B2 (ja) 内燃機関用吸気装置
KR101623855B1 (ko) 플랩 디바이스 및 흡기 시스템
JP5013277B2 (ja) 可変吸気装置
WO2010131512A1 (fr) Dispositif d'admission d'air pour moteur à combustion interne
WO2008010420A1 (fr) Dispositif d'admission d'air pour moteur à combustion interne
US20100000489A1 (en) Integrated valve device for intake manifold
US6742496B2 (en) Butterfly valve
WO2007052554A1 (fr) Dispositif d'admission d'air pour moteur
JP5527583B2 (ja) 内燃機関用吸気装置
JP3838217B2 (ja) 可変吸気装置
JP2007255331A (ja) 内燃機関用吸気マニホールド装置
JP4869799B2 (ja) アイドル空気量制御装置
JP2011064138A (ja) エンジンの吸気制御装置
JP2011064149A (ja) 内燃機関用吸気マニホールド装置
JP2009162071A (ja) 内燃機関用吸気マニホールド装置
KR101769233B1 (ko) 흡기 매니폴드
KR101735238B1 (ko) 흡기 매니폴드
JP2011064139A (ja) エンジンの吸気制御装置
JP2009156126A (ja) 内燃機関用吸気マニホールド装置
JP2004052663A (ja) ピストン式ポンプ
JP2000055214A (ja) バルブ装置
JP2005256740A (ja) 吸気装置及びシール部材

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07768194

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07768194

Country of ref document: EP

Kind code of ref document: A1