JP2021021328A - Intake device - Google Patents

Intake device Download PDF

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Publication number
JP2021021328A
JP2021021328A JP2019136017A JP2019136017A JP2021021328A JP 2021021328 A JP2021021328 A JP 2021021328A JP 2019136017 A JP2019136017 A JP 2019136017A JP 2019136017 A JP2019136017 A JP 2019136017A JP 2021021328 A JP2021021328 A JP 2021021328A
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Prior art keywords
intake passage
partition plate
throttle valve
gas
gas introduction
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JP2019136017A
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Japanese (ja)
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亜子 伊藤
Ako Ito
亜子 伊藤
和昭 中山
Kazuaki Nakayama
和昭 中山
近藤　敏之
Toshiyuki Kondo
敏之 近藤
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Toyota Motor Corp
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Toyota Motor Corp
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  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

To provide an intake device capable of distributing gas and capable of achieving miniaturization.SOLUTION: An intake device includes an intake passage, a throttle valve provided in the intake passage, and a partition plate provided in the downstream side of the throttle valve in the intake passage so as to partition the intake passage into a first space and a second space. The throttle valve includes a shaft, a first valve element located on one side in a radial direction of the shaft, and a second valve element located on the other side in the radial direction of the shaft. The shaft is rotated, and the first valve element is tilted to the downstream side of the intake passage, and the second valve element is tilted to the upstream side of the intake passage, and thereby the throttle valve is opened, and thus a gas introduction port through which gas is introduced into the intake passage is provided in the first space of the intake passage. The gas introduction port faces the partition plate, and faces the second element in an extension direction of the intake passage.SELECTED DRAWING: Figure 1

Description

本発明は吸気装置に関する。 The present invention relates to an intake device.

内燃機関において共鳴吸気を行うため、吸気通路に仕切り板を設けることがある。また、吸気通路にはパージガスなどのガスを導入するガス導入口を設ける（特許文献１など）。 In order to perform resonance intake in an internal combustion engine, a partition plate may be provided in the intake passage. Further, the intake passage is provided with a gas introduction port for introducing a gas such as purge gas (Patent Document 1 and the like).

特開２００７−２３９８６号公報JP-A-2007-23986

仕切り板の上流側においてガスを空気と混合させ、仕切り板で区切られる空間にガスを分配するため、ガス導入口を仕切り板よりも上流側に設ける。これにより吸気通路が大型化してしまう。そこで、ガスの分配が可能で、かつ小型化が可能な吸気装置を提供することを目的とする。 In order to mix gas with air on the upstream side of the partition plate and distribute the gas to the space partitioned by the partition plate, a gas introduction port is provided on the upstream side of the partition plate. As a result, the intake passage becomes large. Therefore, it is an object of the present invention to provide an intake device capable of distributing gas and being miniaturized.

上記目的は、吸気通路と、前記吸気通路に設けられたスロットルバルブと、前記吸気通路のうち前記スロットルバルブよりも下流側に設けられ、前記吸気通路を第１の空間と第２の空間とに分ける仕切り板と、を具備し、前記スロットルバルブは、軸、前記軸の径方向の一方の側に位置する第１弁体、および前記軸の径方向の他方の側に位置する第２弁体を有し、前記軸が回転し、前記第１弁体は前記吸気通路の下流側に倒れ、前記第２弁体は前記吸気通路の上流側に倒れることで、前記スロットルバルブは開弁し、前記吸気通路の前記第１の空間に、前記吸気通路にガスを導入するガス導入口が設けられ、前記ガス導入口は、前記仕切り板に対向し、かつ前記吸気通路の延伸方向において前記第２弁体と対向する吸気装置によって達成できる。 The above purpose is to provide an intake passage, a throttle valve provided in the intake passage, and the intake passage provided on the downstream side of the throttle valve, and to provide the intake passage into a first space and a second space. The throttle valve includes a partition plate and a partition plate, and the throttle valve is a shaft, a first valve body located on one side in the radial direction of the shaft, and a second valve body located on the other side in the radial direction of the shaft. The shaft rotates, the first valve body falls to the downstream side of the intake passage, and the second valve body falls to the upstream side of the intake passage, so that the throttle valve opens. A gas introduction port for introducing gas into the intake passage is provided in the first space of the intake passage, and the gas introduction port faces the partition plate and the second in the extending direction of the intake passage. This can be achieved by an intake device facing the valve body.

ガスの分配が可能で、かつ小型化が可能な吸気装置を提供できる。 It is possible to provide an intake device that can distribute gas and can be miniaturized.

図１（ａ）は第１実施形態に係る吸気装置を例示する平面図であり、図１（ｂ）および図１（ｃ）は吸気装置を例示する断面図である。FIG. 1A is a plan view illustrating the intake device according to the first embodiment, and FIGS. 1B and 1C are cross-sectional views illustrating the intake device. 図２（ａ）および図２（ｂ）は変形例に係る吸気装置を例示する断面図である。2 (a) and 2 (b) are cross-sectional views illustrating an intake device according to a modified example. 図３（ａ）および図３（ｂ）は第２実施形態に係る吸気装置を例示する断面図である。3 (a) and 3 (b) are cross-sectional views illustrating the intake device according to the second embodiment. 図４（ａ）および図４（ｂ）は変形例に係る吸気装置を例示する断面図である。4 (a) and 4 (b) are cross-sectional views illustrating an intake device according to a modified example. 図５は第３実施形態に係る吸気装置を例示する断面図である。FIG. 5 is a cross-sectional view illustrating the intake device according to the third embodiment.

（第１実施形態）
以下、図面を参照して本実施例の吸気装置について説明する。図１（ａ）は第１実施形態に係る吸気装置１００を例示する平面図であり、図１（ｂ）および図１（ｃ）は吸気装置１００を例示する断面図である。吸気装置１００は吸気通路１０、スロットルバルブ１２、仕切り板１４、およびガス導入部１６を有する。 (First Embodiment)
Hereinafter, the intake device of this embodiment will be described with reference to the drawings. FIG. 1A is a plan view illustrating the intake device 100 according to the first embodiment, and FIGS. 1B and 1C are cross-sectional views illustrating the intake device 100. The intake device 100 includes an intake passage 10, a throttle valve 12, a partition plate 14, and a gas introduction unit 16.

図１（ａ）に示すように、吸気通路１０は湾曲している。空気は図１（ａ）中の矢印のように吸気通路１０を流れ、不図示の内燃機関に導入される。吸気通路１０のＸ軸方向に延伸する部分には、上流側から順にスロットルバルブ１２および仕切り板１４が配置されている。吸気通路１０の仕切り板１４より下流側には不図示のサージタンクが設けられている。また、吸気通路１０は下流側で、内燃機関の気筒に応じて分岐する。 As shown in FIG. 1A, the intake passage 10 is curved. Air flows through the intake passage 10 as shown by an arrow in FIG. 1A and is introduced into an internal combustion engine (not shown). A throttle valve 12 and a partition plate 14 are arranged in order from the upstream side in a portion of the intake passage 10 extending in the X-axis direction. A surge tank (not shown) is provided on the downstream side of the partition plate 14 of the intake passage 10. Further, the intake passage 10 branches on the downstream side according to the cylinder of the internal combustion engine.

図１（ｃ）に示すスロットルバルブ１２は軸１２ａ、弁体１２ｂおよび１２ｃを有するバタフライバルブである。軸１２ａはＺ軸方向における吸気通路１０の中心に位置し、Ｙ軸方向に延伸する。軸１２ａの径方向の一方の側に弁体１２ｂが連結され、径方向の他方の側に弁体１２ｃが連結される。弁体１２ｂは軸１２ａよりも＋Ｚ側に位置し、弁体１２ｃは軸１２ａよりも−Ｚ側に位置する。 The throttle valve 12 shown in FIG. 1 (c) is a butterfly valve having a shaft 12a, valve bodies 12b and 12c. The shaft 12a is located at the center of the intake passage 10 in the Z-axis direction and extends in the Y-axis direction. The valve body 12b is connected to one side of the shaft 12a in the radial direction, and the valve body 12c is connected to the other side in the radial direction. The valve body 12b is located on the + Z side of the shaft 12a, and the valve body 12c is located on the −Z side of the shaft 12a.

仕切り板１４は図１（ａ）に示すように吸気通路１０と同様に湾曲した板であり、図１（ｂ）に示すようにＺ軸方向に延伸する。図１（ｂ）に示すように、仕切り板１４のＺ軸方向における一端は吸気通路１０の内壁に接触し、他端は内壁から離間する。仕切り板１４のＺ軸方向における両端が吸気通路１０の内壁に接触してもよい。図１（ａ）および図１（ｂ）に示すように、仕切り板１４は吸気通路１０を２つの空間１０ａおよび１０ｂに分ける。空間１０ａ（第１の空間）は吸気通路１０の外周側に位置し、空間１０ｂ（第２の空間）は内周側に位置する。図１（ｃ）において仕切り板１４は交差する斜線で示した部分であり、仕切り板１４の上流側の端部１４ａはスロットルバルブ１２よりも下流側に位置する。仕切り板１４は、サージタンクなどにおける吸気の流れの乱れ、圧損を抑制し、気筒間で吸気を分配する。 The partition plate 14 is a curved plate similar to the intake passage 10 as shown in FIG. 1 (a), and extends in the Z-axis direction as shown in FIG. 1 (b). As shown in FIG. 1B, one end of the partition plate 14 in the Z-axis direction is in contact with the inner wall of the intake passage 10, and the other end is separated from the inner wall. Both ends of the partition plate 14 in the Z-axis direction may come into contact with the inner wall of the intake passage 10. As shown in FIGS. 1A and 1B, the partition plate 14 divides the intake passage 10 into two spaces 10a and 10b. The space 10a (first space) is located on the outer peripheral side of the intake passage 10, and the space 10b (second space) is located on the inner peripheral side. In FIG. 1C, the partition plate 14 is a portion shown by an intersecting diagonal line, and the upstream end portion 14a of the partition plate 14 is located on the downstream side of the throttle valve 12. The partition plate 14 suppresses turbulence and pressure loss of the intake air in the surge tank and the like, and distributes the intake air between the cylinders.

パージガスは、例えば燃料タンク内の燃料が蒸発して生じるガスであり、不図示のキャニスタに吸着され、キャニスタからガス導入部１６を通じて吸気通路１０に導入される。ガス導入部１６はガス管１６ａおよびガス導入口１６ｂを有する。ガス管１６ａは例えばパージガスなどのガスが流れる管であり、Ｙ軸方向に延伸する。ガス管１６ａは吸気通路１０の湾曲部の外周壁に接続され、吸気通路１０との接続位置にガス導入口１６ｂが形成される。 The purge gas is, for example, a gas generated by evaporation of fuel in a fuel tank, is adsorbed by a canister (not shown), and is introduced from the canister into the intake passage 10 through the gas introduction unit 16. The gas introduction unit 16 has a gas pipe 16a and a gas introduction port 16b. The gas pipe 16a is a pipe through which a gas such as purge gas flows, and extends in the Y-axis direction. The gas pipe 16a is connected to the outer peripheral wall of the curved portion of the intake passage 10, and the gas introduction port 16b is formed at the connection position with the intake passage 10.

図１（ａ）および図１（ｂ）に示すようにガス導入口１６ｂは空間１０ａに位置する。図１（ａ）に示すように、ガス導入口１６ｂは仕切り板１４の上流側の端部１４ａよりも下流側であって、仕切り板１４の下流側の端部１４ｂよりも上流側に位置し、図１（ｃ）に示すようにＹ軸方向において仕切り板１４に対向する。図１（ｃ）に示すように、ガス導入口１６ｂは、スロットルバルブ１２の軸１２ａよりも−Ｚ側に位置し、Ｘ軸方向において弁体１２ｃに対向する。Ｘ軸方向におけるスロットルバルブ１２の軸１２ａの中心とガス導入口１６ｂの中心との間の距離Ｄは、例えばスロットルバルブ１２の直径ｄの１．２倍以下である。 As shown in FIGS. 1A and 1B, the gas inlet 16b is located in the space 10a. As shown in FIG. 1A, the gas introduction port 16b is located on the downstream side of the upstream end 14a of the partition plate 14 and on the upstream side of the downstream end 14b of the partition plate 14. , Facing the partition plate 14 in the Y-axis direction as shown in FIG. 1 (c). As shown in FIG. 1 (c), the gas introduction port 16b is located on the −Z side of the throttle valve 12 shaft 12a and faces the valve body 12c in the X-axis direction. The distance D between the center of the shaft 12a of the throttle valve 12 and the center of the gas introduction port 16b in the X-axis direction is, for example, 1.2 times or less the diameter d of the throttle valve 12.

スロットルバルブ１２は図１（ｃ）に示すように開弁する。具体的には、スロットルバルブ１２の軸１２ａは矢印Ａ１の方向に回転し、軸１２ａを回転軸として弁体１２ｂ（第１弁体）は吸気通路１０の下流側（＋Ｘ側）に倒れ、弁体１２ｃ（第２弁体）は上流側（−Ｘ側）に倒れる。これにより矢印Ａ２で示すように空気が吸気通路１０の下流側に流れる。 The throttle valve 12 opens as shown in FIG. 1 (c). Specifically, the shaft 12a of the throttle valve 12 rotates in the direction of the arrow A1, and the valve body 12b (first valve body) tilts to the downstream side (+ X side) of the intake passage 10 with the shaft 12a as the rotation axis, and the valve. The body 12c (second valve body) falls to the upstream side (-X side). As a result, air flows to the downstream side of the intake passage 10 as shown by the arrow A2.

スロットルバルブ１２の開弁により、スロットルバルブ１２よりも下流側かつ−Ｚ軸方向に向けて、図１（ｃ）に破線で示す領域Ｒ１が形成される。領域Ｒ１は、空気がよどみ、逆流する領域である。すなわち領域Ｒ１における空気の流速は領域Ｒ１外の流速よりも遅く、領域Ｒ１における空気は吸気通路１０の上流側に逆流することもある。空気の一部は仕切り板１４の−Ｘ側の端部よりも上流側に逆流し、仕切り板１４の両側（空間１０ａおよび１０ｂ）に流れる。 By opening the throttle valve 12, a region R1 shown by a broken line in FIG. 1C is formed on the downstream side of the throttle valve 12 and in the −Z axis direction. Region R1 is a region where air stagnates and flows backward. That is, the flow velocity of the air in the region R1 is slower than the flow velocity outside the region R1, and the air in the region R1 may flow back to the upstream side of the intake passage 10. A part of the air flows back to the upstream side of the end of the partition plate 14 on the −X side, and flows to both sides (spaces 10a and 10b) of the partition plate 14.

第１実施形態によれば、図１（ｂ）および図１（ｃ）に示すように、ガス導入部１６のガス導入口１６ｂは、空間１０ａに位置し、Ｙ軸方向において仕切り板１４に対向し、かつ吸気通路１０の延伸方向であるＸ軸方向において弁体１２ｃに対向する。パージガスはガス管１６ａを通り、ガス導入口１６ｂから吸気通路１０内の領域Ｒ１に流入する。パージガスは領域Ｒ１内の空気に混入し、空気とともに仕切り板１４の端部１４ａよりも上流側に逆流した後、仕切り板１４の両側に分配される。この結果、パージガスを仕切り板１４の一方の側に集中させず、仕切り板１４の両側の空間１０ａおよび１０ｂに分配することができる。 According to the first embodiment, as shown in FIGS. 1B and 1C, the gas introduction port 16b of the gas introduction unit 16 is located in the space 10a and faces the partition plate 14 in the Y-axis direction. In addition, it faces the valve body 12c in the X-axis direction, which is the extension direction of the intake passage 10. The purge gas passes through the gas pipe 16a and flows into the region R1 in the intake passage 10 from the gas introduction port 16b. The purge gas is mixed with the air in the region R1, flows back together with the air to the upstream side of the end portion 14a of the partition plate 14, and then is distributed to both sides of the partition plate 14. As a result, the purge gas can be distributed to the spaces 10a and 10b on both sides of the partition plate 14 without concentrating on one side of the partition plate 14.

ガス導入口１６ｂを仕切り板１４よりも上流側に設けると、パージガスは仕切り板１４の上流側で空気と混合し、仕切り板１４の両側に分配される。しかしガス導入口１６ｂを設けるために仕切り板１４とスロットルバルブ１２との間の距離を大きくすることで、吸気装置が大型化する。第１実施形態によれば、ガス導入口１６ｂは仕切り板１４に対向する。したがって、ガス導入口１６ｂを仕切り板１４よりも上流側に設ける構成に比べ、吸気装置１００を小型化することができる。 When the gas introduction port 16b is provided on the upstream side of the partition plate 14, the purge gas is mixed with air on the upstream side of the partition plate 14 and distributed to both sides of the partition plate 14. However, by increasing the distance between the partition plate 14 and the throttle valve 12 in order to provide the gas introduction port 16b, the intake device becomes large. According to the first embodiment, the gas introduction port 16b faces the partition plate 14. Therefore, the intake device 100 can be downsized as compared with the configuration in which the gas introduction port 16b is provided on the upstream side of the partition plate 14.

スロットルバルブ１２の軸１２ａとガス導入口１６ｂとの間の距離Ｄは、例えばスロットルバルブ１２の直径ｄの１．２倍以下である。これによりガス導入口１６ｂと領域Ｒ１とが近づき、例えばガス導入口１６ｂが領域Ｒ１に露出するようになる。この結果、パージガスは、領域Ｒ１外の空気と混ざりにくく、かつ領域Ｒ１内の空気と混ざりやすくなる。したがって、パージガスが仕切り板１４の両側に効果的に分配される。 The distance D between the shaft 12a of the throttle valve 12 and the gas inlet 16b is, for example, 1.2 times or less the diameter d of the throttle valve 12. As a result, the gas introduction port 16b and the region R1 come close to each other, and for example, the gas introduction port 16b is exposed to the region R1. As a result, the purge gas is less likely to be mixed with the air outside the region R1 and is more likely to be mixed with the air inside the region R1. Therefore, the purge gas is effectively distributed to both sides of the partition plate 14.

第１実施形態の変形例について説明する。図２（ａ）および図２（ｂ）は変形例に係る吸気装置１１０および１２０を例示する断面図であり、それぞれ図１（ｂ）に対応する。変形例は、ガス管を除いて第１実施形態と同じ構成である。 A modified example of the first embodiment will be described. 2 (a) and 2 (b) are cross-sectional views illustrating the intake devices 110 and 120 according to the modified example, and correspond to FIG. 1 (b), respectively. The modified example has the same configuration as that of the first embodiment except for the gas pipe.

図２（ａ）の例におけるガス導入部１６はガス管１６ｃとガス導入口１６ｂとを有する。ガス管１６ｃは例えばＬ字形状であり、Ｚ軸方向およびＹ軸方向に延伸する。図２（ｂ）の例におけるガス導入部１６はガス管１６ｄとガス導入口１６ｂとを有する。ガス管１６ｄはＹ軸およびＺ軸に対して傾斜している。 The gas introduction unit 16 in the example of FIG. 2A has a gas pipe 16c and a gas introduction port 16b. The gas pipe 16c has, for example, an L shape and extends in the Z-axis direction and the Y-axis direction. The gas introduction unit 16 in the example of FIG. 2B has a gas pipe 16d and a gas introduction port 16b. The gas pipe 16d is inclined with respect to the Y-axis and the Z-axis.

図２（ａ）の例および図２（ｂ）の例におけるガス導入口１６ｂは、図１（ｂ）の例と同様に、Ｙ軸方向において仕切り板１４と対向し、かつ吸気通路１０の延伸方向であるＸ軸方向において弁体１２ｃと対向する。このため第１実施形態と同様に、パージガスを仕切り板１４の両側に分配することができ、吸気装置１１０および１２０を小型化することができる。ガス管は図１（ｂ）、図２（ａ）および図２（ｂ）の例以外の方向に延伸してもよい。つまり、ガス管の形状は変更可能であり、ガス導入口１６ｂが図１（ａ）〜図１（ｃ）に示すような位置にあればよい。 The gas introduction port 16b in the example of FIG. 2A and the example of FIG. 2B faces the partition plate 14 in the Y-axis direction and extends the intake passage 10 as in the example of FIG. 1B. It faces the valve body 12c in the X-axis direction, which is the direction. Therefore, as in the first embodiment, the purge gas can be distributed to both sides of the partition plate 14, and the intake devices 110 and 120 can be miniaturized. The gas pipe may be extended in a direction other than the examples of FIGS. 1 (b), 2 (a) and 2 (b). That is, the shape of the gas pipe can be changed, and the gas introduction port 16b may be located at a position as shown in FIGS. 1 (a) to 1 (c).

（第２実施形態）
図３（ａ）および図３（ｂ）は第２実施形態に係る吸気装置２００を例示する断面図である。図３（ａ）および図３（ｂ）に示すように、ガス導入部１６のガス導入口１６ｂは、第１実施形態に比べて＋Ｚ方向に位置する。図３（ｂ）に示すように、ガス導入口１６ｂはスロットルバルブ１２の軸１２ａよりも＋Ｚ側に位置し、Ｘ軸方向において弁体１２ｂに対向する。 (Second Embodiment)
3 (a) and 3 (b) are cross-sectional views illustrating the intake device 200 according to the second embodiment. As shown in FIGS. 3A and 3B, the gas introduction port 16b of the gas introduction unit 16 is located in the + Z direction as compared with the first embodiment. As shown in FIG. 3B, the gas introduction port 16b is located on the + Z side of the throttle valve 12 shaft 12a and faces the valve body 12b in the X-axis direction.

図３（ｂ）に示すように、第２実施形態では、スロットルバルブ１２の軸１２ａは矢印Ａ３の方向に回転し、弁体１２ｂ（第２弁体）は吸気通路１０の上流側（−Ｘ側）に倒れ、弁体１２ｃ（第１弁体）は下流側（＋Ｘ側）に倒れる。これにより矢印Ａ４で示すように空気が吸気通路１０の下流側に流れる。 As shown in FIG. 3B, in the second embodiment, the shaft 12a of the throttle valve 12 rotates in the direction of the arrow A3, and the valve body 12b (second valve body) is on the upstream side (−X) of the intake passage 10. The valve body 12c (first valve body) falls to the downstream side (+ X side). As a result, air flows to the downstream side of the intake passage 10 as shown by the arrow A4.

スロットルバルブ１２の開弁により、スロットルバルブ１２よりも下流側に、図３（ｂ）に破線で示す領域Ｒ２が形成される。領域Ｒ２は、図１（ｃ）の領域Ｒ１と同様に、空気の流速が遅く、空気が逆流する領域である。 By opening the throttle valve 12, a region R2 shown by a broken line in FIG. 3B is formed on the downstream side of the throttle valve 12. The region R2 is a region where the flow velocity of the air is slow and the air flows backward, as in the region R1 of FIG. 1 (c).

第２実施形態によれば、第１実施形態と同様に、パージガスはガス管１６ａを通り、ガス導入口１６ｂから吸気通路１０内の領域Ｒ２に流入し、仕切り板１４の両側に分配される。また、ガス導入口１６ｂは仕切り板１４と重なる位置に設けられているため、吸気装置２００を小型化することができる。 According to the second embodiment, as in the first embodiment, the purge gas passes through the gas pipe 16a, flows into the region R2 in the intake passage 10 from the gas introduction port 16b, and is distributed to both sides of the partition plate 14. Further, since the gas introduction port 16b is provided at a position overlapping the partition plate 14, the intake device 200 can be miniaturized.

第２実施形態の変形例について説明する。図４（ａ）および図４（ｂ）は変形例に係る吸気装置２１０および２２０を例示する断面図である。図４（ａ）の例におけるガス導入部１６のガス管１６ｅは例えばＬ字形状であり、Ｚ軸方向およびＹ軸方向に延伸する。図４（ｂ）の例におけるガス導入部１６のガス管１６ｆはＹ軸およびＺ軸に対して傾斜している。変形例は、ガス管を除けば第２実施形態と同じ構成である。ガス導入口１６ｂは、Ｙ軸方向において仕切り板１４と対向し、かつ吸気通路１０の延伸方向であるＸ軸方向において弁体１２ｂと対向する。このため第２実施形態と同様に、パージガスを仕切り板１４の両側に分配することができる。 A modified example of the second embodiment will be described. 4 (a) and 4 (b) are cross-sectional views illustrating the intake devices 210 and 220 according to the modified example. The gas pipe 16e of the gas introduction portion 16 in the example of FIG. 4A has, for example, an L shape, and extends in the Z-axis direction and the Y-axis direction. The gas pipe 16f of the gas introduction portion 16 in the example of FIG. 4B is inclined with respect to the Y-axis and the Z-axis. The modified example has the same configuration as that of the second embodiment except for the gas pipe. The gas introduction port 16b faces the partition plate 14 in the Y-axis direction and faces the valve body 12b in the X-axis direction which is the extension direction of the intake passage 10. Therefore, the purge gas can be distributed to both sides of the partition plate 14 as in the second embodiment.

（第３実施形態）
図５は第３実施形態に係る吸気装置３００を例示する断面図である。吸気装置３００のスロットルバルブ１８はスライドバルブであり、Ｚ軸方向にスライドする。吸気装置３００の他の構成は第１実施形態と同じである。 (Third Embodiment)
FIG. 5 is a cross-sectional view illustrating the intake device 300 according to the third embodiment. The throttle valve 18 of the intake device 300 is a slide valve and slides in the Z-axis direction. The other configuration of the intake device 300 is the same as that of the first embodiment.

図５に矢印Ａ５で示すように、スロットルバルブ１８が−Ｚ軸方向移動することで、スロットルバルブ１８は開弁する。矢印Ａ６で示すように空気が下流側に流れる。スロットルバルブ１８の下流側の端部よりも下流側に領域Ｒ３が形成される。領域Ｒ３は、図１（ｃ）の領域Ｒ１と同様に、空気の流速が遅く、空気が逆流する領域である。 As shown by the arrow A5 in FIG. 5, the throttle valve 18 is opened by moving the throttle valve 18 in the −Z axis direction. Air flows downstream as indicated by arrow A6. The region R3 is formed on the downstream side of the downstream end of the throttle valve 18. The region R3 is a region where the flow velocity of the air is slow and the air flows backward, as in the region R1 of FIG. 1 (c).

第３実施形態によれば、ガス導入部１６のガス導入口１６ｂは、Ｙ軸方向において仕切り板１４と対向する。またガス導入口１６ｂは、吸気通路１０の延伸方向であるＸ軸方向において、開弁したスロットルバルブ１８に対向する。パージガスはガス管１６ａを通り、ガス導入口１６ｂから吸気通路１０内の領域Ｒ３に流入し、仕切り板１４の両側に分配される。ガス導入口１６ｂは仕切り板１４と重なる位置に設けられているため、吸気装置３００を小型化することができる。 According to the third embodiment, the gas introduction port 16b of the gas introduction unit 16 faces the partition plate 14 in the Y-axis direction. Further, the gas introduction port 16b faces the opened throttle valve 18 in the X-axis direction, which is the extension direction of the intake passage 10. The purge gas passes through the gas pipe 16a, flows into the region R3 in the intake passage 10 from the gas introduction port 16b, and is distributed to both sides of the partition plate 14. Since the gas introduction port 16b is provided at a position overlapping the partition plate 14, the intake device 300 can be miniaturized.

以上本発明の好ましい実施形態について詳述したが、本発明は係る特定の実施形態に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。 Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiments, and various modifications and modifications are made within the scope of the gist of the present invention described in the claims. It can be changed.

１０ 吸気通路
１０ａ、１０ｂ 空間
１２、１８ スロットルバルブ
１２ａ 軸
１２ｂ、１２ｃ 弁体
１４ 仕切り板
１４ａ、１４ｂ 端部
１６ ガス導入部
１６ａ、１６ｃ〜１６ｆ ガス管
１６ｂ 開口部
１００、１１０、１２０、２００、２１０、２２０、３００ 吸気装置 10 Intake passage 10a, 10b Space 12, 18 Throttle valve 12a Shaft 12b, 12c Valve body 14 Partition plate 14a, 14b End 16 Gas introduction 16a, 16c ~ 16f Gas pipe 16b Opening 100, 110, 120, 200, 210 , 220, 300 Intake device

Claims (1)

吸気通路と、
前記吸気通路に設けられたスロットルバルブと、
前記吸気通路のうち前記スロットルバルブよりも下流側に設けられ、前記吸気通路を第１の空間と第２の空間とに分ける仕切り板と、を具備し、
前記スロットルバルブは、軸、前記軸の径方向の一方の側に位置する第１弁体、および前記軸の径方向の他方の側に位置する第２弁体を有し、
前記軸が回転し、前記第１弁体は前記吸気通路の下流側に倒れ、前記第２弁体は前記吸気通路の上流側に倒れることで、前記スロットルバルブは開弁し、
前記吸気通路の前記第１の空間に、前記吸気通路にガスを導入するガス導入口が設けられ、
前記ガス導入口は、前記仕切り板に対向し、かつ前記吸気通路の延伸方向において前記第２弁体と対向する吸気装置。 Intake passage and
Throttle valve provided in the intake passage and
The intake passage is provided on the downstream side of the throttle valve, and includes a partition plate that divides the intake passage into a first space and a second space.
The throttle valve has a shaft, a first valve body located on one side of the shaft in the radial direction, and a second valve body located on the other side of the shaft in the radial direction.
The shaft rotates, the first valve body collapses to the downstream side of the intake passage, and the second valve body collapses to the upstream side of the intake passage, so that the throttle valve opens.
A gas introduction port for introducing gas into the intake passage is provided in the first space of the intake passage.
The gas introduction port is an intake device that faces the partition plate and faces the second valve body in the extending direction of the intake passage.
JP2019136017A 2019-07-24 2019-07-24 Intake device Pending JP2021021328A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09112355A (en) * 1995-10-16 1997-04-28 Nippon Soken Inc Vaporizing fuel control device for internal combustion engine
JP2002004961A (en) * 2000-06-27 2002-01-09 Toyota Motor Corp Gas mixture system
JP2010163937A (en) * 2009-01-14 2010-07-29 Toyota Motor Corp Control device for internal combustion engine
US20150192078A1 (en) * 2014-01-06 2015-07-09 Ford Global Technologies, Llc Method and system for egr control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09112355A (en) * 1995-10-16 1997-04-28 Nippon Soken Inc Vaporizing fuel control device for internal combustion engine
JP2002004961A (en) * 2000-06-27 2002-01-09 Toyota Motor Corp Gas mixture system
JP2010163937A (en) * 2009-01-14 2010-07-29 Toyota Motor Corp Control device for internal combustion engine
US20150192078A1 (en) * 2014-01-06 2015-07-09 Ford Global Technologies, Llc Method and system for egr control

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