WO2023062772A1 - Structure de système d'admission de moteur - Google Patents

Structure de système d'admission de moteur Download PDF

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Publication number
WO2023062772A1
WO2023062772A1 PCT/JP2021/038040 JP2021038040W WO2023062772A1 WO 2023062772 A1 WO2023062772 A1 WO 2023062772A1 JP 2021038040 W JP2021038040 W JP 2021038040W WO 2023062772 A1 WO2023062772 A1 WO 2023062772A1
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WO
WIPO (PCT)
Prior art keywords
egr
passage
surge tank
intake
engine
Prior art date
Application number
PCT/JP2021/038040
Other languages
English (en)
Japanese (ja)
Inventor
肇 石井
光高 小島
健一朗 飛田
洋之 木村
慎司 新海
幸二 竹内
健吾 前田
則夫 高安
勝 西川
Original Assignee
三菱自動車工業株式会社
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 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to PCT/JP2021/038040 priority Critical patent/WO2023062772A1/fr
Publication of WO2023062772A1 publication Critical patent/WO2023062772A1/fr

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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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • 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
    • 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 the structure of the exhaust recirculated gas introduction part in the intake passage of a vehicle.
  • the EGR device includes an EGR passage that communicates an exhaust passage and an intake passage, recirculates a portion of the exhaust gas (EGR gas) from the exhaust passage to the intake passage, and reduces the oxygen concentration of the intake air. As a result, the temperature in the combustion chamber of the engine is lowered and NOx emissions from the engine are suppressed.
  • EGR gas exhaust gas
  • an EGR passage is connected to a branch passage (branch pipe) of an intake manifold provided at the most downstream side of the intake passage, and EGR gas (exhaust gas recirculation gas) is connected to each branch passage. ) are introduced respectively.
  • Patent Document 1 a plurality of branch passages are arranged in parallel, and an EGR passage is provided so as to extend in a direction intersecting the branch passages.
  • a gas supply port to each branch passage is provided side by side.
  • the flow passage cross-sectional area of the EGR passage at a position immediately before connecting to each branch passage is configured to decrease from the upstream side to the downstream side, and EGR gas flows into each branch passage. It has a structure that makes it easy to flow in approximately evenly.
  • Patent Document 1 since EGR gas is supplied to the intake air in each branch passage, even if the flow passage cross-sectional area of the EGR passage is set to decrease toward the downstream side, Also, for example, when the operation of the engine fluctuates, the EGR gas may not properly flow into each branch passage with respect to the amount of intake air, and the concentration of EGR gas in each cylinder may differ or fluctuate.
  • the present invention has been made in view of these problems, and its object is to provide an engine intake system structure capable of homogenizing the concentration of exhaust gas recirculated in the intake air introduced into a plurality of cylinders. to do.
  • an engine intake system structure includes a first surge tank in an intake passage, a branch passage for diverting intake air from the first surge tank to each cylinder, and an exhaust gas. part of the exhaust gas is recirculated to the intake passage on the upstream side of the branch passage, wherein the exhaust gas recirculation passage transfers the exhaust gas to the intake passage. It is characterized by having a second surge tank that is connected to the introduction part for introducing and stores the exhaust recirculated gas.
  • the second surge tank is provided in the exhaust gas recirculation passage, the exhaust gas recirculation gas is temporarily stored before being introduced into the intake passage, and the exhaust gas recirculation gas is stably supplied to the intake passage, Mixing of the intake air and the exhaust recirculated gas can be promoted in the intake passage. Furthermore, by temporarily storing the intake air mixed with the supplied exhaust gas recirculation gas in the first surge tank, the first surge tank promotes mixing of the intake air and the exhaust gas recirculation gas, and exhaust gas recirculation during intake. Gas can be homogenized and supplied to each branch passage.
  • the second surge tank has a smaller volume than the first surge tank.
  • the pressure of the exhaust gas recirculated can be increased by the second surge tank, and the exhaust gas recirculated can be stably supplied to the intake passage.
  • the first surge tank and the second surge tank are integrally formed.
  • the first surge tank and the second surge tank can be configured compactly.
  • the first surge tank has a wall surface connected to the intake passage and extending in a plane, and the second surge tank is formed along the wall surface of the first surge tank. I hope you are.
  • the second surge tank can be configured compactly along the wall surface of the first surge tank with a simple configuration.
  • the second surge tank is formed by a tubular introduction passage portion that closes a downstream end of the exhaust gas recirculation passage, the introduction portion has the intake passage therein, and a peripheral wall thereof defines the introduction passage.
  • the introduction portion has the intake passage therein, and a peripheral wall thereof defines the introduction passage.
  • a tubular intake pipe forming a part of the inner wall on the downstream end side of the portion and having an opening in the peripheral wall.
  • the introduction portion for introducing the exhaust gas recirculation gas into the intake passage and the second surge tank can be realized with a simple configuration.
  • the intake pipe is arranged offset to one side in the flow path width direction with respect to a center position of the introduction passage portion in the flow path width direction, and is arranged on one side of the introduction passage portion in the flow path width direction. and the peripheral wall, and the opening is at least on the front side of the introduction passage portion in the flow direction of the exhaust gas recirculation gas, or the one side in the width direction of the flow passage.
  • the exhaust gas recirculation gas flowing through the introduction passage reaches the intake pipe, and along the peripheral wall of the intake pipe, the gap between the inner wall of the introduction passage on one side in the flow path width direction and the peripheral wall of the intake pipe is increased. wrap around Since it is introduced into the intake passage in the intake pipe from the opening, it is possible to generate a swirl flow of the exhaust gas recirculated in the intake pipe and promote mixing of the intake air and the exhaust gas recirculated.
  • the exhaust gas recirculation gas is temporarily stored in the second surge tank, and the exhaust gas recirculation gas is stably supplied to the intake pipe. Concentration can be stabilized. Furthermore, by temporarily storing the intake air mixed with the supplied exhaust gas recirculation gas in the first surge tank, the first surge tank promotes mixing of the intake air and the exhaust gas recirculation gas, and the exhaust gas recirculation gas being sucked. can be homogenized and uniformly supplied to each branch passage. As a result, it is possible to introduce the intake air in which the concentration of the exhaust gas recirculated is homogenized into each cylinder of the engine, and to improve the effect of the exhaust gas recirculation.
  • FIG. 1 is a schematic configuration diagram of a front portion of a vehicle according to an embodiment of the present invention
  • FIG. FIG. 2 is a vertical cross-sectional view of an engine intake system accessory
  • FIG. 2 is a vertical cross-sectional view of an engine intake system accessory
  • FIG. 3 is a cross-sectional view of an engine intake system accessory
  • It is a longitudinal cross-sectional view of an intake system accessory of another embodiment.
  • FIG. 1 is a schematic structural diagram of the front portion of a vehicle 1 that employs an intake system structure for an engine 3 according to an embodiment of the present invention.
  • FIG. 2 is a vertical cross-sectional view of the auxiliary equipment of the intake system arranged in front of the engine 3, and is a view seen from the left side in the vehicle width direction when mounted on the vehicle.
  • FIG. 3 is a vertical cross-sectional view of an intake system accessory of the engine 3.
  • FIG. 4 is a cross-sectional view of an intake system accessory of the engine 3.
  • FIG. 3 is a cross-sectional view taken along line AA shown in FIG.
  • FIG. 4 is a cross-sectional view taken along line BB shown in FIG.
  • a vehicle 1 that employs the present invention is equipped with a power unit 4 including an engine 3 in a front engine room 2 .
  • a vehicle 1 is a plug-in hybrid vehicle capable of EV mode, series mode, and parallel mode.
  • the power unit 4 is equipped with the engine 3, a travel drive motor (not shown), and a power generation motor generator.
  • the traveling drive motor and the power generation motor generator are arranged on the left side of the engine 3 in the vehicle width direction.
  • the power generation motor generator is also used as a starter motor for the engine 3 .
  • the engine 3 is a 4-cylinder engine and is horizontally mounted on the vehicle 1 .
  • An intake manifold 5 is provided on the front surface 3a of the engine 3, and an intake passage 6 is arranged.
  • an exhaust manifold 7 is provided on the rear side of the engine 3, and an exhaust passage 8 is arranged.
  • a throttle valve 10 is provided in the intake passage 6 .
  • a surge tank 11 (first surge tank) is provided between the throttle valve 10 and the intake manifold 5 in the intake passage 6 .
  • the throttle valve 10 is located in the upper part of the front surface 3a side of the engine 3, and has a branch pipe 12 (branch passage) connected to the No. 2 cylinder located at the center in the vehicle width direction of the engine 3, and a branch pipe 12 connected to the No. 3 cylinder. is placed between
  • the surge tank 11 is provided along the front surface 3a of the engine 3 and arranged below the throttle valve 10.
  • a branch pipe 12 of the intake manifold 5 is connected from the surge tank 11 toward each cylinder.
  • the branch pipe 12 bends toward the vehicle front side from the lower surface of the surge tank 11, extends upward adjacent to the front side of the surge tank 11, and is connected to an intake port 13 of each cylinder provided at the upper portion of the front surface 3a of the engine 3.
  • the exhaust passage 8 is provided with a front catalyst 20 downstream of the exhaust manifold 7 .
  • a rear catalyst 21 is provided downstream of the front catalyst 20 in the exhaust passage 8 .
  • the front catalyst 20 and the rear catalyst 21 are exhaust purification catalysts such as three-way catalysts.
  • the front catalyst 20 is relatively small and is arranged adjacent to the rear surface of the engine 3 .
  • the front catalyst 20 is arranged near the engine 3 so that the exhaust gas flows immediately from the engine 3 in order to improve the purification performance of the exhaust gas during cold operation such as immediately after starting the engine.
  • the rear catalyst 21 is relatively large and is arranged under the floor of the vehicle 1, for example.
  • the engine 3 is equipped with an EGR device 30 (exhaust gas recirculation device).
  • the EGR device 30 reduces the oxygen concentration of the intake air by recirculating part of the exhaust gas to the intake passage 6 to suppress the temperature rise in the combustion chamber of the engine 3 . This reduces NOx in the exhaust gas from the engine 3 .
  • the EGR device 30 includes an EGR passage 31 (exhaust recirculation passage) that connects the intake passage 6 and the exhaust passage 8, an EGR valve 34 that is interposed in the EGR passage 31 and adjusts the opening area of the EGR passage 31, the EGR passage 31 It has an EGR cooler 32 provided in.
  • EGR passage 31 exhaust recirculation passage
  • EGR valve 34 that is interposed in the EGR passage 31 and adjusts the opening area of the EGR passage 31, the EGR passage 31 It has an EGR cooler 32 provided in.
  • the EGR cooler 32 is a water-cooled cooler that lowers the temperature of EGR gas (exhaust gas recirculation gas) that is the exhaust gas passing through the EGR passage 31, and is arranged along the rear surface of the engine 3. By lowering the temperature of the EGR gas, the EGR cooler 32 further suppresses the temperature rise of the intake air into which the EGR gas is introduced, thereby improving the NOx reducing effect of the EGR device 30 .
  • EGR gas exhaust gas recirculation gas
  • the EGR passage 31 passes through the EGR cooler 32 from the vicinity of the exhaust outlet of the front catalyst 20, extends upward from the rear left portion of the engine, wraps around the front side of the engine 3, and is arranged at the upper left portion of the engine. 34 and is connected to the intake passage 6 between the throttle valve 10 and the surge tank 11 .
  • an adapter 40 and an EGR ring 41 are provided between the throttle valve 10 and the surge tank 11. .
  • the adapter 40 and the EGR ring 41 have substantially the same diameter circular tube shape.
  • the upper end of the EGR ring 41 is connected to the throttle valve 10
  • the lower end of the EGR ring 41 is connected to a tank inlet 42 provided in the upper wall 11 a of the surge tank 11 .
  • the surge tank 11 is formed in a substantially rectangular box shape, and a tank inlet 42 is provided at a substantially central position in the left-right direction of the upper wall 11a and at the front part of the vehicle.
  • tank outlets 43 corresponding to the number of cylinders of the engine 3 are arranged side by side in the left-right direction at a position on the vehicle rear side of the lower wall 11b of the surge tank 11 . That is, in the surge tank 11, the tank inlet 42 and the tank outlet 43 are offset in the longitudinal direction of the vehicle.
  • branch pipes 12 of the intake manifold 5 extend adjacent to the lower side and the front side of the surge tank 11 toward the intake ports 13 of the corresponding left and right cylinders.
  • a connection point between the EGR passage 31 and the intake passage 6 in the EGR device 30 that is, a point where EGR gas is introduced into the intake passage 6 is located between the throttle valve 10 and the surge tank 11 .
  • the EGR passage 31 on the downstream side of the EGR valve 34 extends from the left side in the vehicle width direction to the right side in the vehicle width direction along the upper wall 11 a of the surge tank 11 and is formed so as to surround the side surface of the EGR ring 41 . It has an EGR introduction passage portion 45 (introduction passage portion, second surge tank).
  • the EGR introduction passage portion 45 has a tubular shape with a rectangular cross section in the vertical direction, and has a front-to-rear width (for example, several centimeters) substantially equal to or slightly larger than the diameter of the EGR ring 41, and has a rectangular shape with a vertical width smaller than the horizontal width. It's becoming
  • the EGR introduction passage portion 45 extends rightward in the vehicle width direction from the outer wall surface of the EGR ring 41 on the right side in the vehicle width direction.
  • the EGR introduction passage portion 45 is arranged so as to be offset to the rear side of the vehicle with respect to the axis of the EGR ring 41 .
  • the right inner wall surface of the EGR introduction passage portion 45 on the leading end side in the extension direction (the forward side in the flow direction) and the right outer wall surface of the EGR ring 41 , and the rear inner wall surface of the EGR introduction passage portion 45 and the rear outer wall surface of the EGR ring 41 are formed with an interval of about 1 cm, for example.
  • the front outer wall surface of the EGR ring 41 is in contact with the front inner wall surface of the EGR introduction passage portion 45 . That is, the internal space of the EGR introduction passage portion 45 faces the right, rear, and left portions of the outer wall surface (surrounding wall) of the EGR ring 41 .
  • a ring hole 50 (opening) is provided in the rear portion of the outer wall surface of the EGR ring 41 facing the internal space of the EGR introduction passage portion 45, and a ring hole 51 (opening) is provided in the right portion. is provided.
  • the EGR gas that has passed through the EGR valve 34 is formed to pass through the ring holes 50 and 51 from the EGR introduction passage portion 45 and be introduced into the intake passage in the EGR ring 41 .
  • the vertical cross-sectional area of the EGR introduction passage portion 45 that is, the passage area is formed larger than the passage area of the EGR passage 31 on the upstream side of the EGR introduction passage portion 45.
  • the EGR introduction passage portion 45 is adjacent to the upstream side of the ring holes 50 and 51 of the EGR ring 41 and has the function of a surge tank (second surge tank) that temporarily stores EGR gas.
  • the volume of the internal space that functions as a surge tank in the EGR introduction passage portion 45 is set smaller than the volume of the surge tank 11 .
  • the throttle valve 10 and the intake manifold 5, which are devices of the intake system, are provided on the front surface 3a side of the engine 3 mounted horizontally in the vehicle 1.
  • a surge tank 11 is provided between the throttle valve 10 and the intake manifold 5 .
  • a branch pipe 12 of the intake manifold 5 is connected from the surge tank 11 to each cylinder.
  • the intake passage 6 is provided with an EGR device 30 that supplies EGR gas, which is a part of the exhaust gas. EGR gas is introduced.
  • EGR gas is supplied to the EGR passage 31 adjacent to the upstream side of the ring holes 50 and 51 of the EGR ring 41, that is, adjacent to the upstream side of the introduction position of the EGR gas from the EGR passage 31 to the intake passage 6.
  • An EGR introduction passage portion 45 having a function of a surge tank for storing is provided.
  • the EGR gas is temporarily stored in the EGR introduction passage portion 45 before being introduced into the intake passage 6, and is stably supplied to the intake passage 6.
  • the surge tank 11 promotes mixing of the intake air and the EGR gas and homogenizes the EGR gas in the intake air.
  • the branch pipe 12 can be supplied homogeneously.
  • the EGR introduction passage portion 45 has a smaller volume than the surge tank 11, the EGR gas pressure is increased in the EGR introduction passage portion 45 even in an engine operating state or a transient operation state in which the amount of EGR gas supplied is small. , the EGR gas can be stably supplied to the intake passage 6 .
  • the surge tank 11 and the EGR introduction passage portion 45 are integrally formed, the surge tank 11 and the second surge tank in the EGR introduction passage portion 45 can be configured compactly.
  • the surge tank 11 has an upper wall 11a extending in a plane while being connected to the intake passage 6, and the EGR introduction passage portion 45 is formed along the upper wall 11a of the surge tank 11. can be configured compactly along the wall surface of the surge tank 11 with a simple configuration.
  • a tubular EGR introduction passage portion 45 with a closed tip is provided at the downstream end portion of the EGR passage 31, and the EGR ring 41 forms a part of the inner wall of the EGR introduction passage portion 45 on the tip portion side. . That is, by penetrating the tubular EGR ring 41 having the ring holes 50 and 51 in the vicinity of the tip of the EGR introduction passage portion 45, an EGR gas introduction portion for introducing EGR gas into the intake passage can be realized with a simple structure. can be done.
  • the EGR ring 41 is offset toward the rear of the vehicle, which is one side of the flow path width direction, with respect to the central position of the EGR introduction passage portion 45 in the flow path width direction (vehicle front-rear direction).
  • a space is provided between the inner wall of the EGR ring 41 on the vehicle rear side, which is one side in the flow path width direction, of the ring 45 and the peripheral wall of the EGR ring 41 .
  • the ring holes 50 and 51 of the EGR ring 41 are provided on the right side in the vehicle width direction and the rear side of the vehicle in the peripheral wall of the EGR ring 41 .
  • the EGR gas flowing through the EGR introduction passage portion 45 reaches the EGR ring 41 and flows along the outer wall of the EGR ring 41 between the inner wall of the EGR introduction passage portion 45 on the vehicle rear side and the EGR ring 41 . Since the EGR gas is introduced into the intake passage 6 in the EGR ring 41 through the ring holes 50 and 51 of the EGR ring 41, a swirling flow of the EGR gas is generated in the intake passage 6 to promote mixing of the intake air and the EGR gas. can be done.
  • the present invention is not limited to the above embodiments.
  • the lower end of the EGR ring 41 is at substantially the same vertical position as the inner wall surface of the upper wall 11 a of the surge tank 11 .
  • the EGR ring 41 may be extended downward so that the lower end 41a of the EGR ring 41 protrudes below the inner wall surface of the top wall 11a of the surge tank 11 .
  • the distance from the ring holes 50 and 51, which are the EGR gas introduction positions in the EGR ring 41, to the inside of the surge tank 11 is extended. Mixing with EGR gas can be promoted.
  • the distance between the lower end of the EGR ring 41 and the lower wall 11b of the surge tank 11 is shortened, the intake air containing the EGR gas flowing into the surge tank 11 from the EGR ring 41 collides with the lower wall 11b of the surge tank 11. becomes easier. As a result, mixing of the EGR gas in the surge tank 11 can be promoted, and unevenness in concentration of the EGR gas in the intake air supplied to the cylinders from the tank discharge ports 43 can be further suppressed.
  • the adapter 40 and the EGR ring 41 have separate structures, but the adapter 40 and the EGR ring 41 may have an integral structure.
  • the present invention is applied to the engine 3 mounted on a plug-in hybrid vehicle, but it can also be applied to an engine mounted on a hybrid vehicle or a gasoline vehicle, or an engine other than a vehicle. .
  • the present invention can be widely applied to engines equipped with an EGR device.

Abstract

La structure de système d'admission de moteur selon l'invention est pourvue d'un passage RGE (31) qui comprend un réservoir d'équilibre (11) dans un passage d'admission (6), comporte des tuyaux de ramification (12) qui dévient l'air d'admission provenant du réservoir d'équilibre (11) vers chaque cylindre, et qui fait recirculer une partie des gaz d'échappement, servant de gaz RGE, vers le passage d'admission (6) à l'intérieur d'un anneau RGE (41) en amont du réservoir d'équilibre (11), une partie passage d'introduction de RGE tubulaire (45) se situant dans une partie d'extrémité en aval du passage de RGE (31) est reliée à l'anneau RGE (41) pour faire recirculer le gaz RGE vers le passage d'admission (6) à l'intérieur de l'anneau RGE (41), et est pourvue d'un second réservoir d'équilibre pour stocker temporairement le gaz RGE.
PCT/JP2021/038040 2021-10-14 2021-10-14 Structure de système d'admission de moteur WO2023062772A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2021/038040 WO2023062772A1 (fr) 2021-10-14 2021-10-14 Structure de système d'admission de moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/038040 WO2023062772A1 (fr) 2021-10-14 2021-10-14 Structure de système d'admission de moteur

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WO2023062772A1 true WO2023062772A1 (fr) 2023-04-20

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147010A (ja) * 2003-11-17 2005-06-09 Nissan Diesel Motor Co Ltd ターボ過給エンジンの排気還流装置
JP2009156043A (ja) * 2007-12-25 2009-07-16 Nissan Diesel Motor Co Ltd インテークマニホルド
US7568340B2 (en) * 2006-05-24 2009-08-04 Honeywell International, Inc. Exhaust gas recirculation mixer
JP2010255599A (ja) * 2009-04-28 2010-11-11 Toyota Motor Corp 内燃機関のｅｇｒ装置
JP2011080394A (ja) * 2009-10-06 2011-04-21 Denso Corp 多気筒エンジンの吸気装置
JP2013011185A (ja) * 2011-06-28 2013-01-17 Aisin Seiki Co Ltd 内燃機関用吸気装置
JP2013151906A (ja) * 2012-01-25 2013-08-08 Aisin Seiki Co Ltd Ｐｃｖ通路の凍結防止構造およびインテークマニホールド
CN204371531U (zh) * 2015-01-08 2015-06-03 广西玉柴机器股份有限公司 Egr发动机的进气歧管
JP2017141689A (ja) * 2016-02-08 2017-08-17 株式会社Ｓｕｂａｒｕ ガス還流装置
JP2017180261A (ja) * 2016-03-30 2017-10-05 ダイハツ工業株式会社 サージタンク一体式吸気マニホールド
JP2019044644A (ja) * 2017-08-31 2019-03-22 愛三工業株式会社 吸気装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147010A (ja) * 2003-11-17 2005-06-09 Nissan Diesel Motor Co Ltd ターボ過給エンジンの排気還流装置
US7568340B2 (en) * 2006-05-24 2009-08-04 Honeywell International, Inc. Exhaust gas recirculation mixer
JP2009156043A (ja) * 2007-12-25 2009-07-16 Nissan Diesel Motor Co Ltd インテークマニホルド
JP2010255599A (ja) * 2009-04-28 2010-11-11 Toyota Motor Corp 内燃機関のｅｇｒ装置
JP2011080394A (ja) * 2009-10-06 2011-04-21 Denso Corp 多気筒エンジンの吸気装置
JP2013011185A (ja) * 2011-06-28 2013-01-17 Aisin Seiki Co Ltd 内燃機関用吸気装置
JP2013151906A (ja) * 2012-01-25 2013-08-08 Aisin Seiki Co Ltd Ｐｃｖ通路の凍結防止構造およびインテークマニホールド
CN204371531U (zh) * 2015-01-08 2015-06-03 广西玉柴机器股份有限公司 Egr发动机的进气歧管
JP2017141689A (ja) * 2016-02-08 2017-08-17 株式会社Ｓｕｂａｒｕ ガス還流装置
JP2017180261A (ja) * 2016-03-30 2017-10-05 ダイハツ工業株式会社 サージタンク一体式吸気マニホールド
JP2019044644A (ja) * 2017-08-31 2019-03-22 愛三工業株式会社 吸気装置

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