WO2017126126A1 - Dispositif de vanne pour passage d'écoulement de gaz d'échappement - Google Patents

Dispositif de vanne pour passage d'écoulement de gaz d'échappement Download PDF

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Publication number
WO2017126126A1
WO2017126126A1 PCT/JP2016/051922 JP2016051922W WO2017126126A1 WO 2017126126 A1 WO2017126126 A1 WO 2017126126A1 JP 2016051922 W JP2016051922 W JP 2016051922W WO 2017126126 A1 WO2017126126 A1 WO 2017126126A1
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WO
WIPO (PCT)
Prior art keywords
valve body
exhaust gas
flow path
link member
exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/051922
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English (en)
Japanese (ja)
Inventor
宗弘 壷阪
泰史 梅野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Futaba Industrial Co Ltd
Original Assignee
Futaba Industrial 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 Futaba Industrial Co Ltd filed Critical Futaba Industrial Co Ltd
Priority to PCT/JP2016/051922 priority Critical patent/WO2017126126A1/fr
Publication of WO2017126126A1 publication Critical patent/WO2017126126A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits

Definitions

  • the present disclosure relates to an exhaust passage valve device.
  • Patent Document 1 describes a configuration in which a valve device is provided downstream of a catalyst that purifies exhaust gas in an exhaust passage.
  • the valve device described in Patent Document 1 in a state where the pressure of the exhaust gas is low, the valve body is maintained in a closed position where the exhaust passage is most closed by the force of the spring.
  • the valve body is pushed by the exhaust gas, and the valve body rotates in the opening direction from the closed position.
  • the valve device in which the position of the valve body changes in accordance with the pressure of the exhaust gas has an advantage that the configuration is simpler than the configuration in which the position of the valve body is controlled by electric power.
  • One aspect of the present disclosure is an exhaust flow path valve device that includes a flow path member, a valve body, and a maintenance mechanism.
  • the flow path member has an exhaust flow path inside.
  • the valve body is rotatable with respect to the flow path member in the exhaust flow path.
  • the maintenance mechanism is provided outside the flow path member, and applies an external force to the valve body to maintain the valve body in a closed position where the exhaust flow path is most closed.
  • the valve body is provided so as to rotate and move in the opening direction from the closed position by the pressure of the exhaust gas.
  • the structure which applies the external force for maintaining a valve body to a closed position to a valve body is realizable with comparatively low heat resistance.
  • the valve body may be provided downstream of the catalyst that purifies the exhaust gas flowing through the exhaust passage. According to such a configuration, the valve body is maintained in the closed position in a state where the pressure of the exhaust gas is low, and the flow of the exhaust gas is inhibited downstream of the catalyst, so that the residence time of the exhaust gas in the catalyst becomes long. Therefore, the temperature of the catalyst can be easily improved.
  • One aspect of the present disclosure may be configured such that the maintenance mechanism has a maximum load applied to the valve body at the beginning of opening of the valve body. According to such a structure, it can suppress that a valve body begins to open to an opening direction from a closed position in the state where the pressure of waste gas is low.
  • the maintenance mechanism includes a first link member, a second link member, and an urging member.
  • the first link member is provided so as to be rotatable with respect to the valve body.
  • the second link member is provided to be rotatable with respect to the flow path member.
  • the urging member urges the valve body in the closing direction.
  • the first link member and the second link member are connected to each other so as to be rotatable.
  • the configuration in which “the first link member is provided so as to be able to rotate and move with respect to the valve body” includes not only the configuration in which the first link member is directly connected by the valve body, but also the first link member.
  • a configuration in which one link member is indirectly connected by a valve body through a member other than the valve body is also included.
  • the configuration in which “the second link member is provided so as to be rotatable with respect to the flow path member” the configuration in which the second link member is directly connected by the flow path member is not sufficient.
  • the second link member is indirectly connected to the flow path member via a member other than the flow path member.
  • a strong force is required for the valve body. Therefore, for example, compared with a configuration in which the valve body is urged only by the urging member, a force necessary for the valve body to start rotating in the opening direction from the closed position while weakening the urging force of the urging member against the valve body. Can be increased.
  • FIG. 2A is a perspective view of the valve device in a state where the downstream pipe is seen through and the valve body is open
  • FIG. 2B is a perspective view of the valve device in a state where the downstream pipe is seen through and the valve body is closed
  • 3A is a side view of the valve device in a state where the valve body is open
  • FIG. 3B is a side view of the valve device in a state where the valve body is closed.
  • An exhaust purification device 100 shown in FIG. 1 is a device for purifying exhaust gas discharged from an internal combustion engine of an automobile.
  • the arrows in FIG. 1 indicate the direction in which the exhaust gas flows.
  • the exhaust purification device 100 includes a flow path member 1, a catalyst 2, a reflux pipe 3, a reflux valve 4, and a valve device 5.
  • the flow path member 1 is a part of the exhaust flow path for guiding the exhaust gas discharged from the internal combustion engine to the outside of the automobile, specifically, until the exhaust gas discharged from the internal combustion engine passes through the catalyst 2 and is discharged.
  • the exhaust passage is formed.
  • the flow path member 1 includes an upstream pipe 11 that forms an exhaust flow path upstream of the catalyst 2, a catalyst case 12 that houses the catalyst 2, and a downstream pipe 13 that forms an exhaust flow path downstream of the catalyst 2. .
  • the upstream pipe 11, the catalyst case 12, and the downstream pipe 13 are sections for convenience of explanation, and the sections of the parts constituting the flow path member 1 are not particularly limited.
  • the upstream pipe 11 and the downstream pipe 13 are straight circular pipes.
  • the downstream pipe 13 is provided coaxially with the central axis of the upstream pipe 11 and has the same diameter as the upstream pipe 11.
  • the catalyst case 12 has a cylindrical case part 122 having a diameter larger than that of the upstream pipe 11, an upstream cone part 121 that connects the upstream pipe 11 and the case part 122, and a downstream part that connects the case part 122 and the downstream pipe 13. A cone portion 123.
  • the catalyst case 12 is also provided coaxially with the central axis of the upstream pipe 11.
  • Catalyst 2 is a ceramic carrier carrying a noble metal such as platinum, palladium, or rhodium.
  • the carrier is a filter having a cylindrical outer shape.
  • the catalyst 2 is accommodated in the case portion 122 of the catalyst case 12.
  • the catalyst 2 is configured such that the exhaust gas flowing into the upstream end face of the catalyst 2 flows out from the downstream end face of the catalyst 2.
  • HC, CO, NOx, etc. in the exhaust gas are purified by an oxidation reaction or an oxidation / reduction reaction when passing through the catalyst 2.
  • the exhaust gas purification effect by the catalyst 2 is easily exhibited when the temperature of the exhaust gas passing through the catalyst 2 is increased to some extent.
  • the exhaust purification device 100 of the present embodiment has a configuration using only one catalyst 2.
  • the recirculation pipe 3 forms a recirculation flow path for introducing exhaust gas from the exhaust flow path downstream of the catalyst 2 to the intake flow path for supplying air to the internal combustion engine. That is, a so-called EGR (Exhaust Gas Recirculation) system is constructed by the reflux pipe 3.
  • EGR Exhaust Gas Recirculation
  • the recirculation valve 4 adjusts the amount of exhaust gas flowing through the recirculation pipe 3. Specifically, the open / close operation of the recirculation valve 4 is controlled by electrical power in accordance with a control signal output from an electronic control device mounted on the automobile.
  • the valve device 5 opens and closes the exhaust passage downstream of the catalyst 2, specifically, downstream of the branch position between the downstream cone portion 123 and the reflux pipe 3.
  • the valve device 5 is provided in the downstream pipe 13.
  • the exhaust purification device 100 of the present embodiment has a configuration in which only one valve device that opens and closes the exhaust flow path is used downstream of the catalyst 2, specifically, downstream of the branch position of the reflux pipe 3. .
  • the downstream pipe 13 is provided with two through holes for supporting a valve body 50 described later. Specifically, as shown in FIGS. 2A and 2B, a bearing 60 and a bearing 61, which will be described later, are inserted through the two through holes.
  • the valve device 5 includes a valve body 50, a rod 51, a stay 52, a first link member 53, a second link member 54, a spring 55, a bearing 60, a bearing 61, a shaft 7A, A shaft 7B and a shaft 7C are provided.
  • the valve body 50 in the valve device 5 and parts other than a part of the bearing 60 and the bearing 61 are provided outside the downstream pipe 13.
  • the bearing 60 is a cylindrical member that rotatably supports one of both end portions of the shaft portion 50B of the valve body 50 described later and the rod 51 and supports a stay 52 described later.
  • the bearing 61 is a cylindrical member that rotatably supports the other of both end portions of the shaft portion 50B.
  • the bearing 61 is provided coaxially with the central axis of the bearing 60.
  • Each of the bearing 60 and the bearing 61 and the downstream pipe 13 are fixed by welding.
  • the valve body 50 is accommodated in the internal space of the downstream pipe 13 and is provided so as to be rotatable relative to the downstream pipe 13 in an exhaust passage formed by the downstream pipe 13.
  • the valve body 50 includes a main body portion 50A and a shaft portion 50B.
  • the main body 50A is a substantially circular plate-shaped portion that plays a role of changing the flow passage area of the exhaust flow passage in the valve body 50.
  • the main body portion 50A is a plate-like portion in which the left and right sides are cut out in a straight line parallel to each other. The reason why such a notch is formed in the main body 50A is to prevent interference between the outer edge of the main body 50A and the inner peripheral surface of the downstream pipe 13 when the valve body 50 rotates. Due to the cutout of the main body portion 50A, there is a gap between the valve body 50 and the downstream pipe 13 even when the valve body 50 (main body portion 50A) is in the closed position where the exhaust passage is most closed. The exhaust passage is not completely blocked.
  • the closed position here is a position where the substantially circular surface of the main body 50A is orthogonal to the central axis of the downstream pipe 13 (in this example, the positions shown in FIGS. 2B and 3B). Due to the gap between the valve body 50 and the downstream pipe 13, the exhaust passage is not completely closed by the valve body 50, and malfunction of the internal combustion engine is prevented.
  • the part provided with the shaft part 50B in the main body part 50A has a shape in which the left and right sides are further cut out.
  • the shaft portion 50 ⁇ / b> B is a rod-shaped portion that plays a role as a rotation shaft in which the main body portion 50 ⁇ / b> A rotates in the valve body 50.
  • the shaft portion 50B is fixed to the main body portion 50A with screws at a position shifted from the center of the substantially circular surface of the main body portion 50A.
  • Both end portions of the shaft portion 50 ⁇ / b> B are cylindrical, one of which is inserted into the bearing 60 and the other is inserted into the bearing 61.
  • the outer diameters at both ends of the shaft portion 50B are set to be slightly smaller than the inner diameters of the bearing 60 and the bearing 61.
  • the exhaust gas flowing through the exhaust passage is prevented from leaking from the respective holes of the bearing 60 and the bearing 61 between the outer peripheral surfaces of both ends of the shaft portion 50B and the inner peripheral surfaces of the bearing 60 and the bearing 61. Therefore, the labyrinth structure washer is arranged.
  • the valve body 50 is arranged in such a direction that the central axes of both end portions of the shaft portion 50B are in the horizontal direction, and the shaft portion 50B is positioned above the center position of the main body portion 50A in the vertical direction. That is, the valve body 50 is provided such that the arc-shaped portion in which the notch is not formed in the main body 50A faces downward in the vertical direction. Therefore, in the state where the valve body 50 is in the closed position, the gap between the downstream pipe 13 and the valve body 50 is small on the lower side in the vertical direction in the internal space of the downstream pipe 13. This is because, when the gap is small, backflow is suppressed when condensed water is generated inside the flow path member 1.
  • the rod 51 is a member fixed to the shaft portion 50B of the valve body 50 outside the downstream pipe 13, and is a member extending in a direction perpendicular to the central axis of the shaft portion 50B.
  • the rod 51 has a link support portion 51A for supporting the first link member 53 so that the first link member 53 can rotate and move at one end, and the other end is fixed to the shaft portion 50B by a screw (not shown).
  • the shaft portion 50B passes through the bearing 60 and a support portion 52A of a stay 52 described later.
  • the stay 52 is an L-shaped plate material, and includes a support portion 52A for supporting the bearing 60 and a support portion 52B for supporting the second link member 54 so as to be rotatable.
  • the shaft portion 50B and the bearing 60 are inserted through the support portion 52A.
  • the support part 52B supports the second link member 54 so as to be capable of rotational movement in a state where one end of the second link member 54 is sandwiched from both sides.
  • the first link member 53 is a rod-shaped member that realizes a toggle mechanism.
  • the toggle mechanism here is a mechanism for applying an external force to the valve body 50 to maintain the valve body 50 in the closed position.
  • One end of the first link member 53 is rotatably supported by the link support portion 51A of the rod 51 via the shaft 7A.
  • the second link member 54 is also a rod-shaped member for realizing a toggle mechanism.
  • One end of the second link member 54 is rotatably supported by the support portion 52B of the stay 52 via the shaft 7B.
  • the other end of the first link member 53 and the other end of the second link member 54 are connected to each other via a shaft 7C so as to be rotatable.
  • the rod 51, the stay 52, the first link member 53, and the second link member 54 are connected to each other so as to be able to rotate, thereby forming a link type toggle mechanism (link mechanism).
  • the spring 55 is a coil spring and is a member for urging the valve body 50 in the closing direction B shown in FIG. 3B.
  • the closing direction B here refers to a direction in which the valve body 50 is closed so that the exhaust passage is closed.
  • the spring 55 is provided to act on the support portion 52 ⁇ / b> B of the stay 52 and the second link member 54.
  • the spring 55 has the same number of turns on both sides of the spring 55 with the second link member 54 interposed therebetween, and is symmetrical with the second link member 54 interposed therebetween.
  • the number of turns of the spring 55 is the same on both sides of the second link member 54. When the number of turns of the spring 55 is shifted to the side opposite to the downstream pipe 13 side, the second link member 54 is correspondingly increased.
  • the valve body 50 is rotatably supported by the bearing 60 and the bearing 61 in the internal space of the downstream pipe 13 with the shaft portion 50B as the rotation axis.
  • the valve body 50 is positioned at the closed position by the urging force of the spring 55 in a state where the pressure of the exhaust gas that rotates and moves the valve body 50 is not applied.
  • the link angle that is an angle formed by the first link member 53 and the second link member 54 is the largest (an angle close to 180 degrees in this example). Therefore, a strong external force is required to rotate the valve body 50 in the opening direction A as shown in FIG. 3A when the valve body 50 is in the closed position.
  • valve body 50 rotates and moves in the closing direction B by the urging force of the spring 55. That is, the valve body 50 rotates and moves to a position corresponding to the pressure of the exhaust gas, and changes the flow passage area of the exhaust flow passage.
  • the valve body 50 is provided so as to be rotatable relative to the downstream pipe 13 of the flow path member 1 in the exhaust flow path (relative to the downstream pipe 13).
  • the valve body 50 is positioned at the closed position by the urging force of the spring 55.
  • the main body portion 50A moves in the direction of the opening direction A and the shaft portion 50B rotates.
  • the rod 51, the first link member 53, and the second link member 54 also rotate.
  • valve body 50 rotates and moves in the closing direction B by the urging force of the spring 55. Further, the valve body 50 and the rod 51, the stay 52, the first link member 53, the second link member 54, the spring 55, and the shaft, which are components of the valve device 5 excluding a part of the bearing 60 and the bearing 61. 7A, the shaft 7B, and the shaft 7C are provided outside the downstream pipe 13.
  • the configuration of the valve device 5 that applies the urging force of the spring 55 to the valve body 50 can be realized with relatively low heat resistance. For this reason, compared with the structure with which the valve body 50 and the component of the valve apparatus 5 except a part of bearing 60 and the bearing 61 are provided in the inside of the downstream pipe 13, the thermal expansion of the said component is suppressed. Is done.
  • the temperature of the exhaust gas is very high immediately below the catalyst 2, so that the rotationally moving portion of each component is expanded by heat, or a spring
  • the spring 55 that biases the valve body 50 is provided outside the downstream pipe 13, such a problem can be made difficult to occur.
  • valve body 50 rotates according to the pressure of the exhaust gas, it is not necessary to provide a mechanism for applying an external force for driving the valve body 50, for example, an electrical mechanism using a motor or a wire. Moreover, since the valve body 50 opens and closes according to the pressure of exhaust gas, it is not necessary to use sensors for detecting the timing for opening and closing the valve body 50. Therefore, a mechanism for rotating the valve body 50 can be realized with a simple configuration.
  • the rod 51, the first link member 53, the second link member 54, the spring 55, the shaft 7A, the shaft 7B, and the shaft 7C are held only by the stay 52, so that these are configured as one assembly. The For this reason, the stay 52 can facilitate the assembly of the valve device 5 to the downstream pipe 13.
  • a valve body 50 is provided downstream of the catalyst 2 for purifying exhaust gas flowing through the exhaust passage. According to such a configuration, the valve body 50 is maintained at the closed position in a state where the pressure of the exhaust gas is low, and the flow of the exhaust gas is inhibited downstream of the catalyst 2, so that the residence time of the exhaust gas in the catalyst 2 becomes long. Therefore, the temperature of the catalyst 2 can be easily improved.
  • the valve body 50 is biased in the closing direction B by the spring 55 in a state where the pressure of the exhaust gas is low as in the idling state immediately after the internal combustion engine is started.
  • the force exceeds the force with which the exhaust gas opens the valve body 50, and the valve body 50 is in the closed position. For this reason, the back pressure of the exhaust passage increases, and the residence time of the exhaust gas in the vicinity of the catalyst 2 becomes longer. Therefore, an increase in the bed temperature of the catalyst 2 can be promoted.
  • the valve device 5 includes a first link member 53, a second link member 54, a spring 55, a bearing 60, a bearing 61, a shaft 7A, a shaft 7B, and a shaft 7C.
  • the first link member 53 is rotatably provided relative to the valve body 50 and the rod 51 (based on the valve body 50 and the rod 51) via the shaft 7A.
  • the second link member 54 is provided to be rotatable relative to the stay 52 (with respect to the stay 52) via the shaft 7B.
  • the spring 55 biases the valve body 50 in the closing direction B.
  • the first link member 53 and the second link member 54 are connected to each other via a shaft 7C so as to be capable of rotational movement.
  • the link angle which is the angle formed by the first link member 53 and the second link member 54, is the largest, and in this example is close to 180 degrees. Therefore, a strong external force is required to rotate the valve body 50 in the opening direction A when the valve body 50 is in the closed position. That is, the valve device 5 is configured so that the load applied to the valve body 50 at the beginning of opening of the valve body 50 is maximized.
  • the maximum means the local maximum when the load applied to the valve body 50 in the closing direction is regarded as a function of the rotational movement amount (angle) of the valve body 50 in the opening direction, and is not necessarily limited to the entire area. Does not necessarily match.
  • the urging force in the closing direction B against the valve body 50 can be increased as the valve body 50 opens in the opening direction A from the closed position. That is, for example, as compared with a configuration in which the valve body 50 is biased only by the spring 55, the force necessary for the valve body 50 to start rotating in the opening direction A from the closed position is increased while weakening the force of the spring 55. be able to. Thereby, it can suppress that the valve body 50 begins to open to the opening direction A from a closed position in the state where the pressure of waste gas is low.
  • the first link member 53 and the second link member 54 protrude to the opposite side to the side where the shaft portion 50B of the valve body 50 is provided in the vertical direction. According to such a configuration, the protruding amount of the first link member 53 and the second link member 54 with respect to the downstream pipe 13 can be suppressed.
  • the downstream pipe 13 corresponds to an example of a flow path member
  • the rod 51, the stay 52, the first link member 53, the second link member 54, the spring 55, the shaft 7A, the shaft 7B, and the shaft. 7C corresponds to an example of a maintenance mechanism.
  • the spring 55 corresponds to an example of an urging member.
  • the configuration shown in FIG. 1 is exemplified as the flow path member having the exhaust flow path in which the valve body is provided, but the configuration of the flow path member is not limited to this.
  • the structure which has an exhaust flow path inside a cross section other than circular may be sufficient.
  • the exhaust purification device 100 has been illustrated with the configuration including the reflux pipe 3 and the reflux valve 4.
  • the exhaust purification device may have a configuration without the reflux pipe and the valve.
  • valve body 50 is provided downstream of the catalyst 2 for purifying exhaust gas
  • the position of the valve body is not limited to this.
  • the valve body may be provided upstream of the catalyst 2, and may be provided at other positions in the exhaust passage such as downstream of a DPF (Diesel Particulate Filter) or GPF (Gasoline Particulate Filter). Also good.
  • DPF Diesel Particulate Filter
  • GPF Gasoline Particulate Filter
  • the configuration in which the spring 55 provided in the valve device 5 is a coil spring is exemplified, but the type of the spring is not particularly limited.
  • a so-called double torsion spring having a shape in which two left and right coil springs are combined may be used for the valve device.
  • the attachment position of a spring is not specifically limited.
  • a spring may be provided so as to act on the rod 51 and the first link member 53, and for example, a spring may be provided so as to act on the first link member 53 and the second link member 54. It may be.
  • an urging member other than a spring such as an elastic body, may be used.
  • a link-type toggle mechanism is exemplified as a maintenance mechanism that applies an external force to the valve body 50 to maintain the valve body 50 in the closed position, but the configuration of the maintenance mechanism is limited to this. It is not a thing.
  • the maintenance mechanism may include a biasing member that biases the valve body in the closing direction and a resistance member that becomes resistance when the valve body rotates in the opening direction from the closed position.
  • the resistance member here is, for example, a member (for example, a leaf spring) that is positioned so as to prevent rotational movement of the valve body in the opening direction and that elastically deforms along with the rotational movement of the valve body, thereby allowing the rotational movement of the valve body. Etc.).
  • the maintenance mechanism may be configured such that the urging force in the closing direction with respect to the valve element increases as the valve element opens, for example, the valve element may be urged in the closing direction only by the urging member or the weight.
  • valve body 50 having the configuration in which the shaft portion 50B is provided at a position shifted from the center of the surface of the main body portion 50A is illustrated, but the configuration of the valve body is not limited to this.
  • the valve body may be configured such that the main body portion rotates along the center line of the surface.
  • the shape of the main body portion can be made, for example, a circle or a shape closer to a circle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un dispositif de vanne pour un passage d'écoulement de gaz d'échappement, lequel dispositif comporte un élément de passage d'écoulement, un corps de vanne, et un mécanisme de maintien. L'élément de passage d'écoulement a à l'intérieur de ce dernier un passage d'écoulement de gaz d'échappement. Le corps de vanne est mobile de manière rotative à l'intérieur du passage d'écoulement de gaz d'échappement par rapport à l'élément de passage d'écoulement. Le mécanisme de maintien est disposé à l'extérieur de l'élément de passage d'écoulement et applique au corps de vanne une force externe pour maintenir le corps de vanne dans une position fermée dans laquelle le passage d'écoulement de gaz d'échappement est complètement fermé. De façon spécifique, le corps de vanne est disposé de façon à être mis en un mouvement de rotation à partir de la position fermée dans la direction d'ouverture par la pression des gaz d'échappement.
PCT/JP2016/051922 2016-01-22 2016-01-22 Dispositif de vanne pour passage d'écoulement de gaz d'échappement Ceased WO2017126126A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2016/051922 WO2017126126A1 (fr) 2016-01-22 2016-01-22 Dispositif de vanne pour passage d'écoulement de gaz d'échappement

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Application Number Priority Date Filing Date Title
PCT/JP2016/051922 WO2017126126A1 (fr) 2016-01-22 2016-01-22 Dispositif de vanne pour passage d'écoulement de gaz d'échappement

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114810311A (zh) * 2021-01-27 2022-07-29 双叶产业株式会社 阀装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205183A (ja) * 2006-01-31 2007-08-16 Honda Motor Co Ltd 排気流量制御弁
JP2007231820A (ja) * 2006-02-28 2007-09-13 Toyota Motor Corp 可変排気装置
JP2013174131A (ja) * 2012-02-23 2013-09-05 Futaba Industrial Co Ltd 排気流路用弁装置
WO2014092947A1 (fr) * 2012-12-14 2014-06-19 Tenneco Automotive Operating Company Inc. Valve d'échappement équipée d'un patin de ressort souple

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205183A (ja) * 2006-01-31 2007-08-16 Honda Motor Co Ltd 排気流量制御弁
JP2007231820A (ja) * 2006-02-28 2007-09-13 Toyota Motor Corp 可変排気装置
JP2013174131A (ja) * 2012-02-23 2013-09-05 Futaba Industrial Co Ltd 排気流路用弁装置
WO2014092947A1 (fr) * 2012-12-14 2014-06-19 Tenneco Automotive Operating Company Inc. Valve d'échappement équipée d'un patin de ressort souple

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114810311A (zh) * 2021-01-27 2022-07-29 双叶产业株式会社 阀装置

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