JP2014173480A - Intake system and intake control valve - Google Patents

Intake system and intake control valve Download PDF

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JP2014173480A
JP2014173480A JP2013046117A JP2013046117A JP2014173480A JP 2014173480 A JP2014173480 A JP 2014173480A JP 2013046117 A JP2013046117 A JP 2013046117A JP 2013046117 A JP2013046117 A JP 2013046117A JP 2014173480 A JP2014173480 A JP 2014173480A
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bearing member
intake
surge tank
intake device
bearing
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JP6123362B2 (en
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Yu Sakurai
悠 櫻井
Mikinaga Hasegawa
幹修 長谷川
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Aisin Corp
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Aisin Seiki Co Ltd
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    • 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
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    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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Abstract

PROBLEM TO BE SOLVED: To provide an intake system capable of assuring accuracy of dimension near a seal part by a valve body while arranging a funnel structure.SOLUTION: An intake system 100 comprises: an intake system main body 101 having a surge tank 1 and a plurality of intake ports 2; a valve body 32 for opening or closing an opening part 24 arranged between the surge tank 1 and each of the intake ports 2 and a rotating shaft 31; and a first bearing member 50 arranged between the adjoining intake ports 2 for rotatably supporting the rotating shaft 31 of the valve body 32. The intake system main body 101 extends up to the surge tank 1 between the adjoining intake ports 2 and includes a first bearing installing part 70 to which the first bearing member 50 is installed. The first bearing member 50 includes a funnel shape part 52 exposed in the surge tank 1 at one end of the surge tank 1 under a state where it is installed at the first bearing installing part 70.

Description

本発明は、吸気装置および吸気制御弁に関する。   The present invention relates to an intake device and an intake control valve.

従来、隣り合う吸気ポート間で弁体の回動軸を回動可能に支持する軸受部材を備えた吸気装置が知られている（たとえば、特許文献１参照）。   2. Description of the Related Art Conventionally, there is known an intake device that includes a bearing member that rotatably supports a rotation shaft of a valve body between adjacent intake ports (see, for example, Patent Document 1).

上記特許文献１には、サージタンクとサージタンクから下流側に分岐する複数の吸気ポートとを含む吸気装置本体と、吸気ポートに設けられた開口部を開閉する弁体と、弁体を回動させる回動軸と、隣り合う吸気ポート間に設けられ回動軸を回動可能に支持する軸受部材とを備えた吸気装置が開示されている。軸受部材は、吸気装置本体の吸気ポート間の隔壁部分に形成された凹状（切り欠き状）の軸受装着部に嵌め込まれることにより、吸気ポート間の隔壁部分に固定されている。吸気装置本体は樹脂成型品であり、隣り合う吸気ポート間の隔壁や、凹状（切り欠き状）の軸受装着部が吸気装置本体に一体成形されている。   Patent Document 1 discloses an intake device body including a surge tank and a plurality of intake ports that branch downstream from the surge tank, a valve body that opens and closes an opening provided in the intake port, and a valve body that rotates. An intake device is disclosed that includes a rotating shaft to be rotated and a bearing member that is provided between adjacent intake ports and rotatably supports the rotating shaft. The bearing member is fixed to the partition wall portion between the intake ports by being fitted into a concave (notched) bearing mounting portion formed in the partition wall portion between the intake ports of the intake device body. The intake device main body is a resin molded product, and a partition between adjacent intake ports and a concave (notched) bearing mounting portion are integrally formed in the intake device main body.

特開２０１０−１８４７号公報JP 2010-1847

上記特許文献１の吸気装置では、隣り合う吸気ポート間の隔壁部分に凹状（切り欠き状）の軸受装着部を形成して軸受部材を嵌め込むため、軸受装着部に対応する隔壁部分に十分な厚みが必要となる。また、吸気ポートの入口（サージタンクとの接続部分）には、吸入効率を向上させるためにファンネル構造（吸気ポートの入口側が拡大する漏斗状の吸気路構造）を設ける場合があり、この場合にはファンネル構造を設ける分だけ隔壁部分の厚みに余裕が必要となるため、吸気ポートの入口側の隔壁部分も厚肉にする必要がある。したがって、隣り合う吸気ポート間の隔壁は、軸受装着部からサージタンク（吸気ポートの入口部分）までの範囲に渡って厚肉になることになる。このように厚肉の隔壁部分が存在すると、吸気装置本体の樹脂成形時に、厚肉部分でいわゆるソリ、ヒケ、フクレなどの成形不良が発生しやすくなるので、吸気装置本体の厚肉部分（隔壁部分）での寸法精度を確保することが困難となるという問題点がある。ここで、軸受装着部（軸受部材）は、弁体によりシールされるシール部が位置する開口部近傍に配置されるため、開口部近傍の隔壁部分の寸法精度が低いと、弁体による開口部のシール性に悪影響を及ぼすことから、弁体によるシール部近傍の寸法精度を確保することは非常に重要である。   In the above-described intake device of Patent Document 1, a concave (notched) bearing mounting portion is formed in a partition wall portion between adjacent intake ports and the bearing member is fitted, so that the partition wall portion corresponding to the bearing mounting portion is sufficient. Thickness is required. In addition, a funnel structure (a funnel-shaped intake passage structure in which the inlet side of the intake port expands) may be provided at the inlet of the intake port (connection portion with the surge tank). Since there is a need for a sufficient thickness in the partition wall portion as much as the funnel structure is provided, the partition wall portion on the inlet side of the intake port needs to be thick. Therefore, the partition between adjacent intake ports becomes thick over the range from the bearing mounting portion to the surge tank (inlet portion of the intake port). When such a thick partition wall portion is present, molding defects such as warpage, sink, and swelling are likely to occur in the thick wall portion during resin molding of the intake device body. There is a problem that it is difficult to ensure the dimensional accuracy in (part). Here, since the bearing mounting portion (bearing member) is disposed in the vicinity of the opening where the seal portion to be sealed by the valve body is located, if the dimensional accuracy of the partition wall portion in the vicinity of the opening is low, the opening portion by the valve body It is very important to ensure the dimensional accuracy in the vicinity of the seal portion by the valve body.

この発明は、上記のような課題を解決するためになされたものであり、この発明の１つの目的は、ファンネル構造を設けながら、弁体によるシール部近傍の寸法精度を確保することが可能な吸気装置および吸気制御弁を提供することである。   The present invention has been made to solve the above-described problems, and one object of the present invention is to ensure dimensional accuracy in the vicinity of the seal portion by the valve body while providing a funnel structure. An intake device and an intake control valve are provided.

上記目的を達成するために、この発明の第１の局面における吸気装置は、サージタンクとサージタンクの下流側に配置された複数の吸気ポートとを有する吸気装置本体と、サージタンクと吸気ポートとの間に設けられた開口部を開閉するように回動可能に設けられた弁体と、弁体とともに回動する回動軸と、隣り合う吸気ポート間に設けられ、弁体の回動軸を回動可能に支持する第１軸受部材と、を備え、吸気装置本体は、隣り合う吸気ポート間においてサージタンクまで延びるように設けられるとともに、第１軸受部材が装着される軸受装着部を含み、第１軸受部材は、軸受装着部に装着された状態で、サージタンク側の一端に、サージタンク内に露出するファンネル形状部を含む。   In order to achieve the above object, an intake device according to a first aspect of the present invention includes an intake device main body having a surge tank and a plurality of intake ports arranged on the downstream side of the surge tank, a surge tank, and an intake port. A valve body rotatably provided to open and close an opening provided between the valve body, a rotary shaft that rotates together with the valve body, and a rotary shaft of the valve body that is provided between adjacent intake ports. A first bearing member that rotatably supports the intake device body, the intake device body including a bearing mounting portion that is provided to extend to the surge tank between adjacent intake ports and to which the first bearing member is mounted. The first bearing member includes a funnel-shaped portion exposed in the surge tank at one end on the surge tank side in a state of being mounted on the bearing mounting portion.

この発明の第１の局面による吸気装置では、上記のように、第１軸受部材が装着される軸受装着部を、隣り合う吸気ポート間においてサージタンクまで延びるように設けるとともに、軸受装着部に第１軸受部材が装着された状態で、第１軸受部材のサージタンク側の一端に、サージタンク内に露出するファンネル形状部を設けることによって、従来厚肉となっていた軸受装着部から吸気ポートの入口部分（サージタンク）までの隔壁部分に代えて、ファンネル形状部を有する第１軸受部材を設けることができる。また、第１軸受部材は、複数の吸気ポートが設けられる吸気装置本体と比較して小型で単純な形状にすることができるので、たとえば内部を中空にして薄肉化を図ることも容易に行うことができる。その結果、本発明によれば、寸法精度を確保しやすい第１軸受部材を設けることができるとともに、第１軸受部材にファンネル形状部（ファンネル構造）を設けることができるので、ファンネル構造を設けながら、第１軸受部材の開口部近傍の部分により、弁体によるシール部近傍の寸法精度を確保することができる。   In the intake device according to the first aspect of the present invention, as described above, the bearing mounting portion to which the first bearing member is mounted is provided to extend to the surge tank between the adjacent intake ports, and the bearing mounting portion has the first By providing a funnel-shaped portion exposed in the surge tank at one end on the surge tank side of the first bearing member in a state where one bearing member is mounted, the intake port can be removed from the conventionally thick bearing mounting portion. A first bearing member having a funnel-shaped portion can be provided instead of the partition wall portion up to the inlet portion (surge tank). Further, since the first bearing member can be made smaller and simpler than an intake device main body provided with a plurality of intake ports, for example, the inside can be made hollow and thinned easily. Can do. As a result, according to the present invention, it is possible to provide the first bearing member that is easy to ensure the dimensional accuracy, and it is possible to provide the first bearing member with the funnel-shaped portion (funnel structure). The dimensional accuracy in the vicinity of the seal portion by the valve body can be ensured by the portion in the vicinity of the opening of the first bearing member.

上記第１の局面による吸気装置において、好ましくは、第１軸受部材は、ファンネル形状部が形成された外壁部と、外壁部の内側に設けられた中空部とを有している。このように構成すれば、内部を中空にした薄肉の外壁部を有する第１軸受部材を設けることができるので、第１軸受部材の寸法精度を向上させることができる。これにより、容易に、弁体によるシール部近傍の寸法精度を確保することができる。また、第１軸受部材の薄肉化によって材料使用量を低減することができる。   In the intake device according to the first aspect, preferably, the first bearing member has an outer wall portion in which a funnel-shaped portion is formed and a hollow portion provided inside the outer wall portion. If comprised in this way, the 1st bearing member which has the thin outer wall part which made the inside hollow can be provided, Therefore The dimensional accuracy of a 1st bearing member can be improved. Thereby, the dimensional accuracy near the seal portion by the valve body can be easily ensured. Further, the amount of material used can be reduced by reducing the thickness of the first bearing member.

上記第１の局面による吸気装置において、好ましくは、吸気装置本体の軸受装着部は、隣り合う吸気ポート間の隔壁をサージタンクまで分断するように設けられ、第１軸受部材は、隔壁をサージタンクまで分断する軸受装着部に第１軸受部材が装着された状態で、吸気装置本体の隔壁と連続する外壁部を有する。このように構成すれば、吸気装置本体の隔壁から第１軸受部材の配置位置（軸受装着部）に対応する隔壁部分が分断（除去）されるので、第１軸受部材の配置位置において隔壁の厚肉部分に代えて薄肉とすることが可能な第１軸受部材をサージタンクまで延びるように配置することができる。また、サージタンクまで延びる第１軸受部材に、分断された隔壁と連続する外壁部を設けることにより、第１軸受部材の外壁部を隔壁として機能させて吸気ポート間を仕切ることができる。   In the intake device according to the first aspect, preferably, the bearing mounting portion of the intake device main body is provided so as to divide a partition wall between adjacent intake ports to the surge tank, and the first bearing member includes the partition wall of the surge tank. In the state where the first bearing member is mounted on the bearing mounting portion that is divided up to, the outer wall portion is continuous with the partition wall of the intake device body. With this configuration, the partition wall portion corresponding to the position (bearing mounting portion) of the first bearing member is divided (removed) from the partition wall of the intake device main body, so that the thickness of the partition wall at the position where the first bearing member is disposed. The first bearing member that can be made thin instead of the meat portion can be arranged to extend to the surge tank. Further, by providing the first bearing member extending to the surge tank with an outer wall portion continuous with the divided partition wall, the outer wall portion of the first bearing member can function as a partition wall to partition the intake ports.

上記第１の局面による吸気装置において、好ましくは、吸気装置本体は、隣り合う吸気ポート間の隔壁に沿って延びるように設けられた第１溶着部を含む樹脂製の第１吸気装置本体部と、第１吸気装置本体部の第１溶着部と溶着されるとともに吸気ポート間の隔壁に沿って延びるように設けられた第２溶着部を有し、第１吸気装置本体部とともに吸気ポートを構成する樹脂製の第２吸気装置本体部とを含み、第１軸受部材のファンネル形状部が設けられた一端とは反対の他端には、第１吸気装置本体部の第１溶着部と面一になるように配置され、第２溶着部と溶着される軸受溶着部が設けられている。このように構成すれば、第１軸受部材のサージタンク側の一端にファンネル形状部を設けてサージタンク内に露出させる構造でも、ファンネル形状部とは反対側の軸受溶着部で第２吸気装置本体部と溶着して第１軸受部材を強固に固定することができる。   In the intake device according to the first aspect described above, preferably, the intake device main body includes a first resin-made first intake device main body including a first welding portion provided so as to extend along a partition wall between adjacent intake ports. And a second welded portion that is welded to the first welded portion of the first intake device main body and extends along a partition wall between the intake ports, and constitutes an intake port together with the first intake device main body And the other end opposite to the end where the funnel-shaped portion of the first bearing member is provided is flush with the first welded portion of the first intake device body. And a bearing welded portion that is welded to the second welded portion. If comprised in this way, even if it has a structure where a funnel-shaped portion is provided at one end on the surge tank side of the first bearing member and exposed in the surge tank, the second welder body at the bearing welded portion on the side opposite to the funnel-shaped portion The first bearing member can be firmly fixed by welding to the portion.

上記第１の局面による吸気装置において、好ましくは、第１軸受部材は、隣り合う吸気ポート間の隔壁に沿った方向の長さが隔壁に沿った方向の開口部の長さの１／２以上である幅広形状を有する。このように構成すれば、開口部近傍において広い範囲で第１軸受部材を設けることができる。上記のように、弁体による開口部のシール性を確保するためには、開口部近傍における吸気装置本体の寸法精度が重要となるので、この開口部近傍の広い範囲で隔壁の厚肉部分に代えて寸法精度を確保しやすい第１軸受部材を設けることにより、開口部近傍（シール部近傍）の広い範囲で吸気装置本体の寸法精度を確保することができる。   In the intake device according to the first aspect, preferably, the first bearing member has a length in a direction along the partition between adjacent intake ports that is 1/2 or more of a length of the opening in the direction along the partition. It has a wide shape. If comprised in this way, a 1st bearing member can be provided in the wide range in the opening part vicinity. As described above, in order to ensure the sealing performance of the opening by the valve body, the dimensional accuracy of the air intake device main body in the vicinity of the opening is important. Therefore, in the thick part of the partition wall in a wide range near the opening. Instead, by providing the first bearing member that facilitates ensuring dimensional accuracy, the dimensional accuracy of the intake device main body can be ensured in a wide range near the opening (near the seal portion).

上記第１の局面による吸気装置において、好ましくは、第１軸受部材の外壁部には、弁体が閉位置において当接するシール部が設けられている。このように構成すれば、隔壁の厚肉部分に代えて第１軸受部材を設ける構成においても、寸法精度を確保しやすい第１軸受部材の外壁部に設けられたシール部によって、弁体が開口部を閉じた状態での高いシール性を確保することができる。   In the intake device according to the first aspect, preferably, the outer wall portion of the first bearing member is provided with a seal portion with which the valve body abuts in the closed position. With this configuration, even in the configuration in which the first bearing member is provided in place of the thick portion of the partition wall, the valve body is opened by the seal portion provided on the outer wall portion of the first bearing member that facilitates ensuring dimensional accuracy. It is possible to ensure high sealing performance in a state where the portion is closed.

上記第１の局面による吸気装置において、好ましくは、第１軸受部材における、隣り合う吸気ポート間の隔壁に沿った方向の長さは、サージタンク側の一端のファンネル形状部側またはファンネル部とは反対の他端側に向かうにつれて小さくなるテーパ形状を有する。このように構成すれば、テーパ方向（先細りする先端側の方向）によって第１軸受部材の装着方向が特定されるので、第１軸受部材を装着する際に、第１軸受部材が誤った方向に装着されるのを防ぐことができる。また、テーパ形状の第１軸受部材を軸受装着部（吸気装置本体）に装着する際に、第１軸受部材を圧入して固定することができる。   In the intake device according to the first aspect, preferably, the length of the first bearing member in the direction along the partition wall between adjacent intake ports is the funnel-shaped portion side or funnel portion at one end on the surge tank side. It has a tapered shape that becomes smaller toward the opposite other end side. If comprised in this way, since the mounting direction of a 1st bearing member is specified by the taper direction (direction of the tapering front end side), when mounting a 1st bearing member, a 1st bearing member will be in the wrong direction. It can be prevented from being attached. Further, when the tapered first bearing member is mounted on the bearing mounting portion (intake device body), the first bearing member can be press-fitted and fixed.

上記第１の局面による吸気装置において、好ましくは、吸気装置本体は、隔壁のサージタンク側の端部に設けられた本体側ファンネル部を含み、第１軸受部材のファンネル形状部は、吸気装置本体の隔壁の本体側ファンネル部と連続するように設けられている。このように構成すれば、隔壁の本体側ファンネル部と連続する第１軸受部材のファンネル形状部によって、厚肉の本体側ファンネル部を第１軸受部材のファンネル形状部の分だけ減少させながら、本体側ファンネル部およびファンネル形状部により、吸気ポートの吸入効率を向上させることができる。   In the intake device according to the first aspect, preferably, the intake device body includes a body-side funnel portion provided at an end portion of the partition wall on the surge tank side, and the funnel-shaped portion of the first bearing member includes the intake device body. It is provided so as to be continuous with the main body side funnel portion of the partition wall. If comprised in this way, while reducing the thick main body side funnel part by the funnel shape part of a 1st bearing member by the funnel shape part of the 1st bearing member continuous with the main body side funnel part of a partition, a main body The suction efficiency of the intake port can be improved by the side funnel portion and the funnel shape portion.

上記第１の局面による吸気装置において、好ましくは、複数の吸気ポートの両端に設けられ、それぞれ弁体の回動軸の端部を回動可能に支持する第２軸受部材をさらに備え、隣り合う吸気ポート間の隔壁に沿った方向における第１軸受部材の長さは、隣り合う吸気ポート間の隔壁に沿った方向における第２軸受部材の長さよりも大きい。このように構成すれば、吸気ポートが片側にのみ隣接する両端部（外壁部）に設けられる第２軸受部材の長さよりも、吸気ポート間の隔壁に設けられる第１軸受部材の長さが大きくなるので、寸法精度を確保しにくい吸気ポート間の隔壁の厚肉部分を、より広い範囲で寸法精度を確保しやすい第１軸受部材に置き換えることができる。その結果、吸気ポート間の部分で、より広い範囲での寸法精度の確保を容易にすることができる。   In the intake device according to the first aspect, it is preferable that the intake device further includes a second bearing member provided at both ends of the plurality of intake ports and rotatably supporting the end portions of the rotation shafts of the valve bodies. The length of the first bearing member in the direction along the partition between the intake ports is larger than the length of the second bearing member in the direction along the partition between the adjacent intake ports. If comprised in this way, the length of the 1st bearing member provided in the partition between intake ports is larger than the length of the 2nd bearing member provided in the both ends (outer wall part) which an intake port adjoins only to one side. Therefore, the thick part of the partition wall between the intake ports where it is difficult to ensure dimensional accuracy can be replaced with the first bearing member that facilitates ensuring dimensional accuracy over a wider range. As a result, it is possible to easily ensure the dimensional accuracy in a wider range between the intake ports.

この発明の第２の局面における吸気制御弁は、吸気装置本体のサージタンクと、サージタンクの下流側に配置された吸気ポートとの間に設けられた開口部を開閉するように回動可能に設けられ、開口部を開閉することにより吸気ポートの長さを変化させる弁体と、弁体とともに回動する回動軸と、吸気装置本体の隣り合う吸気ポート間に設けられた軸受装着部に装着され、弁体の回動軸を回動可能に支持する軸受部材と、を備え、軸受部材は、隣り合う吸気ポート間においてサージタンクまで延びるように設けられた軸受装着部に装着された状態で、サージタンク側の一端にサージタンク内に露出するファンネル形状部を含む。   The intake control valve according to the second aspect of the present invention is rotatable so as to open and close an opening provided between a surge tank of the intake device body and an intake port disposed on the downstream side of the surge tank. A valve body that changes the length of the intake port by opening and closing the opening, a pivot shaft that rotates together with the valve body, and a bearing mounting portion provided between adjacent intake ports of the intake device body And a bearing member that pivotably supports the pivot shaft of the valve body, and the bearing member is mounted on a bearing mounting portion provided to extend to the surge tank between adjacent intake ports. Thus, the funnel-shaped portion exposed in the surge tank is included at one end on the surge tank side.

この発明の第２の局面による吸気制御弁では、上記のように、隣り合う吸気ポート間においてサージタンクまで延びるように設けられた軸受装着部に装着される軸受部材を設けるとともに、軸受部材のサージタンク側の一端に、軸受部材が軸受装着部に装着された状態でサージタンク内に露出するファンネル形状部を設けることによって、従来厚肉となっていた軸受装着部から吸気ポートの入口部分（サージタンク）までの隔壁部分に代えて、ファンネル形状部を有する軸受部材を設けることができる。また、軸受部材は、複数の吸気ポートが設けられる吸気装置本体と比較して小型で単純な形状にすることができるので、たとえば内部を中空にして薄肉化を図ることも容易に行うことができる。その結果、本発明によれば、寸法精度を確保しやすい第１軸受部材を設けることができるとともに、第１軸受部材にファンネル形状部（ファンネル構造）を設けることができるので、ファンネル構造を設けながら、軸受部材の開口部近傍の部分により、弁体によるシール部近傍の寸法精度を確保することができる。   In the intake control valve according to the second aspect of the present invention, as described above, the bearing member mounted on the bearing mounting portion provided to extend to the surge tank between the adjacent intake ports is provided, and the surge of the bearing member is provided. By providing a funnel-shaped part that is exposed in the surge tank with the bearing member mounted on the bearing mounting part at one end on the tank side, the intake port inlet part (surge A bearing member having a funnel-shaped portion can be provided instead of the partition wall portion up to (tank). Further, since the bearing member can be made smaller and simpler than an intake device main body provided with a plurality of intake ports, for example, it is possible to easily reduce the thickness by hollowing the inside. . As a result, according to the present invention, it is possible to provide the first bearing member that is easy to ensure the dimensional accuracy, and it is possible to provide the first bearing member with the funnel-shaped portion (funnel structure). The dimensional accuracy in the vicinity of the seal portion by the valve body can be ensured by the portion in the vicinity of the opening of the bearing member.

なお、本出願では、上記第１の局面による吸気装置および第２の局面による吸気制御弁とは別に、以下のような他の構成も考えられる。   In the present application, apart from the intake device according to the first aspect and the intake control valve according to the second aspect, the following other configurations are also conceivable.

（付記項）
すなわち、本出願の他の構成による吸気装置は、サージタンクとサージタンクの下流側に配置された複数の吸気ポートとを有する吸気装置本体と、サージタンクと吸気ポートとの間に設けられた開口部を開閉するように回動可能に設けられた弁体と、弁体とともに回動する回動軸と、隣り合う吸気ポート間に設けられ、弁体の回動軸を回動可能に支持する軸受部材と、を備え、吸気装置本体は、隣り合う吸気ポート間において、開口部からサージタンクまでの隔壁を分断するように設けられた軸受装着部を含み、軸受部材は、軸受装着部に装着されることにより分断された隔壁と連続する外壁部と、外壁部の内側に設けられた中空部とを含む。このように構成すれば、吸気装置本体の隣り合う吸気ポート間の隔壁を開口部からサージタンクまで分断するとともに、中空の軸受部材の外壁部を分断された隔壁と連続する隔壁部分として機能させることによって、厚肉になり易い隔壁部分を、中空構造により薄肉化した軸受部材に置き換えることができる。その結果、薄肉化により軸受部材側の寸法精度を確保しつつ、吸気装置本体の厚肉部分を減少させることができるので、材料使用量を低減しながら、弁体によるシール部の寸法精度を確保することができる。 (Additional notes)
That is, an intake device according to another configuration of the present application includes an intake device main body having a surge tank and a plurality of intake ports disposed downstream of the surge tank, and an opening provided between the surge tank and the intake port. Provided between the valve body rotatably provided so as to open and close the part, the rotary shaft rotating together with the valve body, and the adjacent intake port, and rotatably supporting the rotary shaft of the valve body. An intake device body including a bearing mounting portion provided to divide a partition wall from an opening to a surge tank between adjacent intake ports, and the bearing member is mounted on the bearing mounting portion. The outer wall part which continues with the partition parted by being done, and the hollow part provided inside the outer wall part are included. With this configuration, the partition between adjacent intake ports of the intake device main body is divided from the opening to the surge tank, and the outer wall of the hollow bearing member functions as a partition that is continuous with the divided partition. Thus, the partition wall portion that tends to be thick can be replaced with a bearing member that is thinned by the hollow structure. As a result, it is possible to reduce the thick part of the intake device body while ensuring the dimensional accuracy on the bearing member side by thinning, ensuring the dimensional accuracy of the seal part by the valve body while reducing the amount of material used can do.

上記第１および第２の局面による本発明によれば、上記のように、ファンネル構造を設けながら、弁体によるシール部近傍の寸法精度を確保することができる。   According to the present invention according to the first and second aspects, as described above, the dimensional accuracy in the vicinity of the seal portion by the valve body can be ensured while providing the funnel structure.

本発明の第１実施形態による吸気装置の構成を示した斜視図である。It is the perspective view which showed the structure of the intake device by 1st Embodiment of this invention. 本発明の第１実施形態による吸気装置の吸気ポートに沿った模式的な断面図である。It is typical sectional drawing along the intake port of the intake device by 1st Embodiment of this invention. 本発明の第１実施形態による吸気装置の吸気制御弁を示した斜視図である。It is the perspective view which showed the intake control valve of the intake device by 1st Embodiment of this invention. 本発明の第１実施形態による吸気装置の構成を示した分解斜視図である。It is the disassembled perspective view which showed the structure of the intake device by 1st Embodiment of this invention. 本発明の第１実施形態による吸気装置の第１軸受部材が設けられる部分を上方から示した吸気装置本体の斜視図である。It is the perspective view of the intake device main body which showed the part in which the 1st bearing member of the intake device by 1st Embodiment of this invention is provided from upper direction. 図５に示した第２ポート部の開口部と正対するように見た本体部分の上面側平面図である。FIG. 6 is a plan view of the upper surface side of the main body viewed from directly facing the opening of the second port portion shown in FIG. 5. 本発明の第１実施形態による吸気装置の第１軸受部材が設けられる部分を下方から示した吸気装置本体の斜視図である。It is the perspective view of the intake device main body which showed the part in which the 1st bearing member of the intake device by 1st Embodiment of this invention is provided from the downward direction. 図７に示した第２ポート部の入口部と正対するように見た本体部分の下面側平面図である。It is the lower surface side top view of the main-body part looked so as to oppose with the inlet_port | entrance part of the 2nd port part shown in FIG. 本発明の第１実施形態による第１軸受部材を示した斜視図である。It is the perspective view which showed the 1st bearing member by 1st Embodiment of this invention. 本発明の第１実施形態による第１軸受部材を示した側面図である。It is the side view which showed the 1st bearing member by 1st Embodiment of this invention. 本発明の第１実施形態による第１軸受部材を端面側から見た図である。It is the figure which looked at the 1st bearing member by a 1st embodiment of the present invention from the end face side. 本発明の第２実施形態による吸気装置の構成を示した分解斜視図である。It is the disassembled perspective view which showed the structure of the intake device by 2nd Embodiment of this invention. 本発明の第２実施形態による第１軸受部材を示した斜視図である。It is the perspective view which showed the 1st bearing member by 2nd Embodiment of this invention. 本発明の第２実施形態による第１軸受部材を示した側面図である。It is the side view which showed the 1st bearing member by 2nd Embodiment of this invention. 図１２に示した第２ポート部の開口部と正対するように見た第２実施形態による本体部分の上面側平面図である。FIG. 13 is a plan view of the upper surface side of the main body portion according to the second embodiment as viewed in front of the opening of the second port portion shown in FIG. 12. 第２ポート部の入口部と正対するように見た第２実施形態による本体部分の下面側平面図である。It is the lower surface side top view of the main-body part by 2nd Embodiment seen so that the entrance part of a 2nd port part might face.

以下、本発明の実施形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（第１実施形態）
図１〜図１１を参照して、本発明の第１実施形態による吸気装置１００の構成について説明する。 (First embodiment)
With reference to FIGS. 1-11, the structure of the intake device 100 by 1st Embodiment of this invention is demonstrated.

吸気装置１００は、図１および図２に示すように、自動車用の直列４気筒エンジン（図示せず）に設けられる吸気装置である。吸気装置１００は、サージタンク１と、サージタンク１から分岐して、サージタンク１の下流に配置された４本の吸気ポート２と、４本の吸気ポート２の内部にそれぞれ設けられた吸気制御弁３（図３参照）とを備えている。また、図２に示すように、構造的には、吸気装置１００は、サージタンク１と４本の吸気ポート２とを一体的に含む吸気装置本体１０１を含んでいる。吸気装置本体１０１は、樹脂材料からなり、たとえばナイロン６（ＰＡ６）からなる。そして、図２および図３に示すように、吸気装置本体１０１の内部に吸気制御弁３が設けられている。吸気装置１００は、図２に示すように、シリンダヘッド９０に接続されており、４本の吸気ポート２はシリンダヘッド９０を介してエンジンの各気筒とそれぞれ接続されている。   As shown in FIGS. 1 and 2, intake device 100 is an intake device provided in an in-line four-cylinder engine (not shown) for an automobile. The intake system 100 includes a surge tank 1, four intake ports 2 that are branched from the surge tank 1 and are arranged downstream of the surge tank 1, and intake controls that are respectively provided inside the four intake ports 2. And a valve 3 (see FIG. 3). As shown in FIG. 2, structurally, the intake device 100 includes an intake device body 101 that integrally includes a surge tank 1 and four intake ports 2. The intake device main body 101 is made of a resin material, for example, nylon 6 (PA6). As shown in FIGS. 2 and 3, the intake control valve 3 is provided inside the intake apparatus main body 101. As shown in FIG. 2, the intake device 100 is connected to a cylinder head 90, and the four intake ports 2 are connected to each cylinder of the engine via the cylinder head 90.

図４に示すように、吸気装置本体１０１は、５つの本体部分４ａ〜４ｅを含み、本体部分４ａに吸気制御弁３が装着された状態（図２参照）で各本体部分４ａ〜４ｅがそれぞれ振動溶着により互いに一体的に接合されている。なお、本体部分４ａおよび本体部分４ｂは、それぞれ、本発明の「第１吸気装置本体部」および「第２吸気装置本体部」の一例である。   As shown in FIG. 4, the intake device main body 101 includes five main body portions 4 a to 4 e, and each main body portion 4 a to 4 e is in a state where the intake control valve 3 is mounted on the main body portion 4 a (see FIG. 2). They are joined together by vibration welding. The main body portion 4a and the main body portion 4b are examples of the “first intake device main body” and the “second intake device main body” of the present invention, respectively.

具体的には、本体部分４ａには、４本の吸気ポート２間の隔壁１１および外壁１２に沿って延びるライン状の第１溶着部１３が隔壁１１および外壁１２の上端面に形成されている。また、本体部分４ａの上側の本体部分４ｂには、第１溶着部１３と溶着されるとともに吸気ポート２間の隔壁１１および外壁１２に沿って延びるように設けられたライン状の第２溶着部１４が、隔壁１１および外壁１２の下端面に形成されている。これらの本体部分４ａ（第１溶着部１３）と本体部分４ｂ（第２溶着部１４）とが接合されることにより、４本の吸気ポート２のうちの本体部分４ａと本体部分４ｂとの間の部分が構成される。他の本体部分も同様であり、それぞれ対応する溶着部同士が接合されることにより、吸気装置本体１０１が構成されている。なお、説明のため便宜的に、図４に図示されたように本体部分４ｂ側のＺ１方向を上方、本体部分４ｅ側のＺ２方向を下方とする。   Specifically, a line-shaped first welded portion 13 extending along the partition wall 11 and the outer wall 12 between the four intake ports 2 is formed on the upper end surfaces of the partition wall 11 and the outer wall 12 in the main body portion 4 a. . Further, a second welded portion in a line shape is provided on the upper main body portion 4 b of the main body portion 4 a so as to be welded to the first welded portion 13 and to extend along the partition wall 11 and the outer wall 12 between the intake ports 2. 14 is formed on the lower end surfaces of the partition wall 11 and the outer wall 12. By joining the main body portion 4a (first welded portion 13) and the main body portion 4b (second welded portion 14), the space between the main body portion 4a and the main body portion 4b of the four intake ports 2 is increased. The part of is composed. The same applies to the other main body portions, and the corresponding welded portions are joined to each other to constitute the intake device main body 101. For convenience of explanation, as shown in FIG. 4, the Z1 direction on the main body portion 4b side is defined as the upper side, and the Z2 direction on the main body portion 4e side is defined as the lower side.

図１に示すように、サージタンク１には、図示しないエアクリーナおよびスロットルを介して到達する吸気が流入される。４本の吸気ポート２は、横方向に並ぶように配置されている。図２に示すように、４本の吸気ポート２の各々は、第１ポート部２１および第２ポート部２２と、第１ポート部２１および第２ポート部２２の下流側でエンジンの気筒に接続される出口ポート部２３とを含む。第１ポート部２１は、サージタンク１から迂回するように延びて下流側の出口ポート部２３に接続されている。第２ポート部２２は、サージタンク１と出口ポート部２３とを吸気制御弁３を介して接続するように設けられている。   As shown in FIG. 1, the intake air that reaches the surge tank 1 through an air cleaner and a throttle (not shown) flows into the surge tank 1. The four intake ports 2 are arranged side by side in the horizontal direction. As shown in FIG. 2, each of the four intake ports 2 is connected to the engine port on the downstream side of the first port portion 21 and the second port portion 22 and the first port portion 21 and the second port portion 22. And an outlet port portion 23. The first port portion 21 extends so as to bypass the surge tank 1 and is connected to the outlet port portion 23 on the downstream side. The second port portion 22 is provided so as to connect the surge tank 1 and the outlet port portion 23 via the intake control valve 3.

また、吸気制御弁３は、第２ポート部２２と出口ポート部２３との接続部分に位置する開口部２４を開閉するように構成されている。吸気制御弁３が閉じた状態では、第１ポート部２１および出口ポート部２３により吸気経路長の大きいロングポートが形成され、吸気制御弁３が開いた状態では、第２ポート部２２および出口ポート部２３により吸気経路長の小さいショートポートが形成されることによって、吸気制御弁３は、吸気経路長を変更することが可能なように構成されている。すなわち、吸気制御弁３は、開口部２４を開閉することにより、エンジンの各気筒への吸気経路長を変更する可変吸気用の吸気制御弁として機能する。これにより、エンジン回転数やエンジン負荷等に応じて吸気経路長を変更して、より適切な量の吸気をエンジンに供給することが可能である。   Further, the intake control valve 3 is configured to open and close an opening 24 located at a connection portion between the second port portion 22 and the outlet port portion 23. When the intake control valve 3 is closed, a long port having a large intake path length is formed by the first port portion 21 and the outlet port portion 23, and when the intake control valve 3 is opened, the second port portion 22 and the outlet port are formed. The intake control valve 3 is configured to be able to change the intake path length by forming a short port having a small intake path length by the portion 23. That is, the intake control valve 3 functions as an intake control valve for variable intake that changes the intake path length to each cylinder of the engine by opening and closing the opening 24. Thus, it is possible to supply a more appropriate amount of intake air to the engine by changing the intake path length according to the engine speed, the engine load, and the like.

吸気制御弁３は、図３に示すように、弁体３２とともに回動する回動軸３１と、第２ポート部２２（開口部２４）を開閉する４つの弁体３２と、回動軸３１を回動させるアクチュエータ３３とを備えている。アクチュエータ３３は、負圧の供給によって直線方向に駆動力を発生させる負圧アクチュエータである。   As shown in FIG. 3, the intake control valve 3 includes a rotation shaft 31 that rotates together with the valve body 32, four valve bodies 32 that open and close the second port portion 22 (opening 24), and a rotation shaft 31. And an actuator 33 that rotates the actuator. The actuator 33 is a negative pressure actuator that generates a driving force in a linear direction by supplying a negative pressure.

回動軸３１は、吸気ポート２と直交する横方向（４本の吸気ポート２が並ぶ方向）に延び、４本の第２ポート部２２を貫通する金属製の角型シャフトからなる。回動軸３１は、外壁１２の第２軸受装着部８０（図５参照）に配置される２つの第２軸受部材６０により、両端を回動可能に支持されているとともに、隔壁１１の第１軸受装着部７０（図４参照）に配置される３つの第１軸受部材５０により、中央部を回動可能に支持されている。なお、第１軸受装着部７０は、本発明の「軸受装着部」の一例である。また、以下では、回動軸３１の延びる軸方向をＸ方向という。   The rotation shaft 31 is formed of a metal square shaft that extends in a lateral direction orthogonal to the intake port 2 (a direction in which the four intake ports 2 are arranged) and penetrates the four second port portions 22. The rotating shaft 31 is rotatably supported at both ends by two second bearing members 60 disposed on the second bearing mounting portion 80 (see FIG. 5) of the outer wall 12, and the first of the partition wall 11. The center portion is rotatably supported by three first bearing members 50 arranged in the bearing mounting portion 70 (see FIG. 4). The first bearing mounting portion 70 is an example of the “bearing mounting portion” in the present invention. Hereinafter, the axial direction in which the rotation shaft 31 extends is referred to as the X direction.

弁体３２は、４つの吸気ポート２にそれぞれ（合計４つ）設けられている。弁体３２は、開口部２４に対応した略矩形状の外形形状を有する樹脂製の板状部材である。弁体３２は、長手方向の中央部を横切る軸挿入部３２ａに回動軸３１が挿入されることにより、４つの弁体３２が回動軸３１と一体で回動するように回動軸３１に装着されている。軸挿入部３２ａの両端は、軸方向（Ｘ方向）の外側に突出しており、それぞれ、弁体３２の両側に配置された第１軸受部材５０または第２軸受部材６０により回動可能に支持されている。これにより、個々の弁体３２は、軸受部材（第１軸受部材５０および第２軸受部材６０）によって回動可能に支持されており、回動軸３１も個々の弁体３２を介して支持されている。弁体３２の周縁部にはゴム製のシールリップ３２ｂが設けられ、閉状態での開口部２４の気密性を向上させている。吸気制御弁３は、回動軸３１を回動させて４つの弁体３２を一括して回動させることにより、４つの吸気ポート２全てで開口部２４の開閉動作を同時に行うように構成されている。   The valve body 32 is provided in each of the four intake ports 2 (four in total). The valve body 32 is a resin plate member having a substantially rectangular outer shape corresponding to the opening 24. The valve body 32 has a rotation shaft 31 such that the four valve bodies 32 rotate together with the rotation shaft 31 by inserting the rotation shaft 31 into a shaft insertion portion 32 a that crosses the central portion in the longitudinal direction. It is attached to. Both ends of the shaft insertion portion 32a protrude outward in the axial direction (X direction), and are supported rotatably by the first bearing member 50 or the second bearing member 60 disposed on both sides of the valve body 32, respectively. ing. Thus, the individual valve bodies 32 are rotatably supported by the bearing members (the first bearing member 50 and the second bearing member 60), and the rotation shafts 31 are also supported via the individual valve bodies 32. ing. A rubber seal lip 32b is provided on the peripheral edge of the valve body 32 to improve the airtightness of the opening 24 in the closed state. The intake control valve 3 is configured to simultaneously open and close the opening 24 in all four intake ports 2 by rotating the rotation shaft 31 to rotate the four valve bodies 32 at once. ing.

第１実施形態では、合計３つの第１軸受部材５０が、隣り合う吸気ポート２間（弁体３２間）にそれぞれ設けられている。図４に示すように、３つの第１軸受部材５０は、それぞれ、隣り合う吸気ポート２（第２ポート部２２）間の隔壁１１を分断する第１軸受装着部７０に挿入（圧入）されることにより固定的に装着されるように構成されている。なお、回動軸３１の両端の２つの第２軸受部材６０は、それぞれ、吸気装置本体１０１の外壁１２に形成された第２軸受装着部８０に挿入されることにより固定されている。なお、第１軸受部材５０は、本発明の「軸受部材」の一例である。   In the first embodiment, a total of three first bearing members 50 are respectively provided between the adjacent intake ports 2 (between the valve bodies 32). As shown in FIG. 4, each of the three first bearing members 50 is inserted (press-fitted) into the first bearing mounting portion 70 that divides the partition wall 11 between the adjacent intake ports 2 (second port portions 22). It is comprised so that it may mount fixedly. The two second bearing members 60 at both ends of the rotating shaft 31 are fixed by being inserted into second bearing mounting portions 80 formed on the outer wall 12 of the intake device main body 101, respectively. The first bearing member 50 is an example of the “bearing member” in the present invention.

具体的には、図４および図５に示すように、第１軸受部材５０が装着される第１軸受装着部７０は、吸気装置本体１０１（本体部分４ａ）において、４本の吸気ポート２の間に配置された３つの隔壁１１にそれぞれ設けられている。また、第２軸受部材６０が装着される凹状（切り欠き状）の第２軸受装着部８０は、４本の吸気ポート２の両外側に配置された外壁１２にそれぞれ設けられている。   Specifically, as shown in FIG. 4 and FIG. 5, the first bearing mounting portion 70 to which the first bearing member 50 is mounted has four intake ports 2 in the intake device main body 101 (main body portion 4a). It is provided in each of three partition walls 11 arranged between them. In addition, concave (notched) second bearing mounting portions 80 to which the second bearing member 60 is mounted are respectively provided on the outer walls 12 disposed on both outer sides of the four intake ports 2.

第１軸受装着部７０は、図４〜図８に示すように、吸気装置本体１０１（本体部分４ａ）の隣り合う吸気ポート２間において、隔壁１１の第１溶着部１３からサージタンク１（図７参照）まで延びるように形成されている。より具体的には、図５および図７に示すように、第１軸受装着部７０は、第２ポート部２２のサージタンク１側の端部である入口部２５から、開口部２４を通り、隔壁１１の上端の第１溶着部１３に達する範囲に渡って、吸気ポート２間の隔壁１１を分断（除去）するように形成されている。このため、図４に示すように、本体部分４ａは、第１軸受装着部７０によって第２ポート部２２間の隔壁部分が上端の第１溶着部１３から下端の入口部２５まで除去（分断）され、４つの第２ポート部２２がそれぞれの開口部２４も含んで横方向（Ｘ方向）に連続するように貫通している。また、第１軸受装着部７０は、第１軸受部材５０に対応した形状で、分断部分に第１軸受部材５０が嵌り合うように隔壁１１を分断している。   As shown in FIGS. 4 to 8, the first bearing mounting portion 70 is connected to the surge tank 1 (see FIG. 1) from the first welded portion 13 of the partition wall 11 between the adjacent intake ports 2 of the intake device main body 101 (main body portion 4a). 7). More specifically, as shown in FIGS. 5 and 7, the first bearing mounting portion 70 passes through the opening 24 from the inlet portion 25 which is the end portion of the second port portion 22 on the surge tank 1 side, The partition wall 11 between the intake ports 2 is divided (removed) over a range reaching the first welded portion 13 at the upper end of the partition wall 11. Therefore, as shown in FIG. 4, the main body portion 4 a is removed (divided) from the first welded portion 13 at the upper end to the inlet portion 25 at the lower end by the first bearing mounting portion 70. In addition, the four second port portions 22 penetrate through the opening portions 24 so as to be continuous in the lateral direction (X direction). The first bearing mounting portion 70 has a shape corresponding to the first bearing member 50 and divides the partition wall 11 so that the first bearing member 50 fits into the divided portion.

ここで、第１実施形態では、図５〜図８に示すように、第１軸受部材５０は、隔壁１１を分断する第１軸受装着部７０に装着された状態で、吸気装置本体１０１の隔壁１１と連続する外壁部５１を有する。これにより、第１軸受部材５０は、隣り合う吸気ポート２（第２ポート部２２）間を仕切るように構成されている。したがって、第１軸受部材５０が第１軸受装着部７０に装着されることにより、第１軸受装着部７０においてＸ方向に貫通していた隣り合う吸気ポート２（第２ポート部２２）間が、第１軸受部材５０の外壁部５１によって個別の吸気ポート２（第２ポート部２２）毎に仕切られる。   Here, in the first embodiment, as shown in FIGS. 5 to 8, the first bearing member 50 is mounted on the first bearing mounting portion 70 that divides the partition wall 11, and the partition wall of the intake device main body 101. 11 has an outer wall portion 51 continuous with 11. Thereby, the 1st bearing member 50 is comprised so that between the adjacent intake ports 2 (2nd port part 22) may be partitioned off. Therefore, when the first bearing member 50 is mounted on the first bearing mounting portion 70, between the adjacent intake ports 2 (second port portions 22) penetrating in the X direction in the first bearing mounting portion 70, The outer wall portion 51 of the first bearing member 50 is partitioned for each individual intake port 2 (second port portion 22).

第１軸受部材５０は、図９〜図１１に示すように、ファンネル形状部５２と、軸受溶着部５３とが一体形成された略平板状の外壁部５１を有する。また、外壁部５１は、一対の外側面５４および一対の側端面５５を有する。また、外壁部５１には、回動軸３１および弁体３２の軸挿入部３２ａの端部が挿入される軸挿入孔５６と、シール部５７とが形成されているとともに、外壁部５１の内側には、中空部５８が設けられている。第１軸受部材５０は、樹脂成形によって形成された樹脂製部材であり、吸気装置本体１０１と同種の材料（たとえばナイロン６（ＰＡ６））からなる。   As shown in FIGS. 9 to 11, the first bearing member 50 includes a substantially flat outer wall portion 51 in which a funnel-shaped portion 52 and a bearing weld portion 53 are integrally formed. The outer wall portion 51 has a pair of outer side surfaces 54 and a pair of side end surfaces 55. Further, the outer wall 51 is formed with a shaft insertion hole 56 into which the end of the rotation shaft 31 and the shaft insertion portion 32 a of the valve body 32 is inserted, and a seal portion 57, and the inner side of the outer wall portion 51. Is provided with a hollow portion 58. The first bearing member 50 is a resin member formed by resin molding, and is made of the same kind of material as the intake device main body 101 (for example, nylon 6 (PA6)).

ファンネル形状部５２は、外壁部５１の下端においてＡ方向に直線状に延びるように設けられ、先端（下端）に向かうにつれて厚みが小さくなるように外表面がＵ字状に湾曲した部分である。図７および図８に示すように、ファンネル形状部５２は、第１軸受部材５０が第１軸受装着部７０に装着された状態で、サージタンク１側の端部に配置され、サージタンク１内に露出するように設けられている。つまり、第１軸受部材５０は、サージタンク１側の端部でＵ字状に厚みが減少していく。このため、第２ポート部２２の入口部２５では、ファンネル形状部５２によって、隣り合う外壁部５１間の間隔（第２ポート部２２のＸ方向の長さ）がサージタンク１側に向かって大きくなるファンネル構造が構成されている。なお、第２ポート部２２で第１軸受部材５０と連続する隔壁１１のサージタンク１側の端部には、本体側ファンネル部１１ａが一体形成されている。第１軸受部材５０のファンネル形状部５２は、吸気装置本体１０１の隔壁１１の本体側ファンネル部１１ａと面一で連続するように形成されている。そして、第２ポート部２２の入口部２５には、第１軸受部材５０のファンネル形状部５２および本体側ファンネル部１１ａも含んで、入口部２５の全周に渡って周状のファンネル構造が設けられている。   The funnel-shaped portion 52 is a portion that is provided so as to extend linearly in the A direction at the lower end of the outer wall portion 51, and whose outer surface is curved in a U shape so that the thickness decreases toward the tip (lower end). As shown in FIGS. 7 and 8, the funnel-shaped portion 52 is disposed at the end on the surge tank 1 side in a state where the first bearing member 50 is mounted on the first bearing mounting portion 70. It is provided so as to be exposed. That is, the thickness of the first bearing member 50 decreases in a U shape at the end on the surge tank 1 side. For this reason, at the inlet portion 25 of the second port portion 22, the funnel-shaped portion 52 increases the distance between adjacent outer wall portions 51 (the length of the second port portion 22 in the X direction) toward the surge tank 1 side. A funnel structure is formed. Note that a body-side funnel portion 11a is integrally formed at the end of the partition wall 11 that is continuous with the first bearing member 50 at the second port portion 22 on the surge tank 1 side. The funnel-shaped portion 52 of the first bearing member 50 is formed so as to be flush with the body-side funnel portion 11 a of the partition wall 11 of the intake device body 101. The inlet portion 25 of the second port portion 22 includes a funnel-shaped portion 52 of the first bearing member 50 and the main body side funnel portion 11a, and has a circumferential funnel structure over the entire circumference of the inlet portion 25. It has been.

図９〜図１１に示すように、軸受溶着部５３は、外壁部５１の上端面に設けられた傾斜面部分である。軸受溶着部５３は、図５および図６に示すように、第１軸受部材５０が第１軸受装着部７０に装着された状態で、本体部分４ａの隔壁１１の第１溶着部１３と面一になるように配置されている。このため、軸受溶着部５３は、隔壁１１の第１溶着部１３とともに本体部分４ｂの第２溶着部１４（図４参照）に溶着され、本体部分４ｂに固定されるように形成されている。これにより、第１軸受部材５０は、軸受溶着部５３で本体部分４ｂに接合され本体部分４ｂと一体化する。   As shown in FIGS. 9 to 11, the bearing welded portion 53 is an inclined surface portion provided on the upper end surface of the outer wall portion 51. As shown in FIGS. 5 and 6, the bearing welded portion 53 is flush with the first welded portion 13 of the partition wall 11 of the main body portion 4 a in a state where the first bearing member 50 is mounted on the first bearing mounting portion 70. It is arranged to be. Therefore, the bearing welded portion 53 is formed so as to be welded to the second welded portion 14 (see FIG. 4) of the main body portion 4b together with the first welded portion 13 of the partition wall 11 and fixed to the main body portion 4b. Thereby, the 1st bearing member 50 is joined to the main-body part 4b by the bearing welding part 53, and is integrated with the main-body part 4b.

図９〜図１１に示すように、シール部５７は、第１軸受部材５０の厚み方向に突出するようにして、外壁部５１の一対の外側面５４にそれぞれ形成されている。シール部５７は、図５および図６に示すように、第２ポート部２２の開口部２４の縁部に沿って延びるように設けられており、弁体３２のシールリップ３２ｂ（図３参照）が閉位置においてシール部５７と当接するように形成されている。これにより、シール部５７は、第１軸受部材５０の外側面５４での開口部２４の吸気漏れを防止するように構成されている。なお、シール部５７は、第１軸受部材５０が第１軸受装着部７０に装着された状態で、隔壁１１の壁面に設けられたシール部１１ｂと連続するように形成されている。   As shown in FIGS. 9 to 11, the seal portions 57 are respectively formed on the pair of outer side surfaces 54 of the outer wall portion 51 so as to protrude in the thickness direction of the first bearing member 50. As shown in FIGS. 5 and 6, the seal portion 57 is provided so as to extend along the edge of the opening 24 of the second port portion 22, and the seal lip 32 b of the valve body 32 (see FIG. 3). Is formed so as to contact the seal portion 57 in the closed position. As a result, the seal portion 57 is configured to prevent intake air leakage from the opening 24 at the outer side surface 54 of the first bearing member 50. The seal portion 57 is formed to be continuous with the seal portion 11 b provided on the wall surface of the partition wall 11 in a state where the first bearing member 50 is mounted on the first bearing mounting portion 70.

図１０に示すように、中空部５８は、外壁部５１の内部を上下に延びる内壁１５によって、隔壁１１に沿ったＡ方向の中央部を境に両側にそれぞれ設けられた空間部分である。なお、軸挿入孔５６は第１軸受部材５０（外壁部５１）を厚み方向に貫通する円形孔であり、内壁１５は、軸挿入孔５６を取り囲むように形成されている。内壁１５は、弁体３２の軸受面（軸挿入孔５６の内周面）を構成している。このように、外壁部５１の内部に２つの中空部５８が形成される（つまり、肉抜きされる）ことにより、第１軸受部材５０（外壁部５１）は厚肉部分がないように薄肉化されている。詳細には、隔壁１１の肉厚はｔ１（図６参照）であり、図１１に示すように、シール部５７を除いた第１軸受部材５０の総厚みは、隔壁１１の肉厚ｔ１と略等しい。これに対し、第１軸受部材５０（外壁部５１）の肉厚ｔ２は、隔壁１１の肉厚ｔ１よりも小さく（ｔ２＜ｔ１）、中空部５８の厚み方向の幅Ｗ１分だけ第１軸受部材５０が薄肉化されている。   As shown in FIG. 10, the hollow portion 58 is a space portion provided on both sides of the central portion in the A direction along the partition wall 11 by the inner wall 15 extending vertically inside the outer wall portion 51. The shaft insertion hole 56 is a circular hole that penetrates the first bearing member 50 (outer wall portion 51) in the thickness direction, and the inner wall 15 is formed so as to surround the shaft insertion hole 56. The inner wall 15 constitutes a bearing surface of the valve body 32 (an inner peripheral surface of the shaft insertion hole 56). As described above, the two hollow portions 58 are formed inside the outer wall portion 51 (that is, thinned), so that the first bearing member 50 (outer wall portion 51) is thinned so that there is no thick portion. Has been. Specifically, the wall thickness of the partition wall 11 is t1 (see FIG. 6). As shown in FIG. 11, the total thickness of the first bearing member 50 excluding the seal portion 57 is substantially the same as the wall thickness t1 of the partition wall 11. equal. On the other hand, the thickness t2 of the first bearing member 50 (outer wall portion 51) is smaller than the thickness t1 of the partition wall 11 (t2 <t1), and the first bearing member is equal to the width W1 in the thickness direction of the hollow portion 58. 50 is thinned.

また、図１０に示すように、第１軸受部材５０は、隔壁１１に沿ったＡ方向の長さが、下端（一端）のファンネル形状部５２から、ファンネル形状部５２とは反対の上端（他端）の軸受溶着部５３側に向かうにつれて小さくなるテーパ形状を有する。すなわち、側端面５５間の長さが、下端（ファンネル形状部５２）でＬ１であり、上端（軸受溶着部５３）でＬ２（Ｌ２＜Ｌ１）となるように外壁部５１が形成されている。このため、図４に示すように、第１軸受部材５０は、テーパの先端である軸受溶着部５３側を、本体部分４ａの下方（Ｚ２方向側）から第１軸受装着部７０に挿入されるように構成されている。また、第１軸受装着部７０側も隔壁１１の端面が第１軸受部材５０に合わせて上方（Ｚ１方向）に向けて狭くなるテーパ形状となっており、第１軸受部材５０は下方から上方（Ｚ１方向）に向けて第１軸受装着部７０に圧入されることにより装着される。   Further, as shown in FIG. 10, the first bearing member 50 has a length in the A direction along the partition wall 11 from the funnel-shaped portion 52 at the lower end (one end) to the upper end (others) opposite to the funnel-shaped portion 52. It has a tapered shape that becomes smaller toward the bearing welded portion 53 side. That is, the outer wall portion 51 is formed so that the length between the side end surfaces 55 is L1 at the lower end (funnel-shaped portion 52) and L2 (L2 <L1) at the upper end (bearing welded portion 53). Therefore, as shown in FIG. 4, the first bearing member 50 is inserted into the first bearing mounting portion 70 from below the main body portion 4 a (Z2 direction side) on the bearing welded portion 53 side, which is the tip of the taper. It is configured as follows. The first bearing mounting portion 70 also has a tapered shape in which the end surface of the partition wall 11 narrows upward (Z1 direction) in accordance with the first bearing member 50, and the first bearing member 50 is upward (from the lower side). It is mounted by being press-fitted into the first bearing mounting portion 70 in the Z1 direction).

また、図６に示すように、第１軸受部材５０は、隔壁１１に沿ったＡ方向の長さＬ２が、隔壁１１に沿ったＡ方向の開口部２４の長さＬ３の１／２以上である幅広形状を有する。このため、第１軸受部材５０は、隔壁１１に沿ったＡ方向における開口部２４の両端部を除く広い範囲に渡る隔壁部分を構成している。なお、第１実施形態では、第１軸受部材５０のＡ方向の長さＬ２は、長さＬ３の１／２よりも大きく、長さＬ３よりは小さい。また、第１軸受部材５０と第２軸受部材６０とを比較すると、隔壁１１に沿ったＡ方向における第１軸受部材５０の上端の長さＬ２は、第２軸受部材６０の上端の長さＬ４（第２軸受装着部８０の内寸Ｌ４と一致する）よりも長くなっている。   Further, as shown in FIG. 6, the first bearing member 50 has a length L2 in the A direction along the partition wall 11 that is ½ or more of a length L3 of the opening 24 in the A direction along the partition wall 11. It has a certain wide shape. For this reason, the first bearing member 50 constitutes a partition wall portion extending over a wide range excluding both ends of the opening 24 in the A direction along the partition wall 11. In the first embodiment, the length L2 of the first bearing member 50 in the A direction is larger than ½ of the length L3 and smaller than the length L3. Further, when comparing the first bearing member 50 and the second bearing member 60, the length L2 of the upper end of the first bearing member 50 in the A direction along the partition wall 11 is the length L4 of the upper end of the second bearing member 60. It is longer than the inner dimension L4 of the second bearing mounting portion 80.

第１実施形態では、上記のように、第１軸受部材５０が装着される第１軸受装着部７０を、隣り合う吸気ポート２（第２ポート部２２）間においてサージタンク１まで延びるように設けるとともに、第１軸受装着部７０に第１軸受部材５０が装着された状態で、第１軸受部材５０のサージタンク１側の一端に、サージタンク１内に露出するファンネル形状部５２を設けることによって、従来厚肉となっていた第１軸受装着部７０から吸気ポート２の入口部２５（サージタンク１）までの隔壁部分に代えて、ファンネル形状部５２を有する第１軸受部材５０を設けることができる。また、第１軸受部材５０は、複数の吸気ポート２が設けられる吸気装置本体１０１と比較して小型で単純な形状にすることができるので、たとえば内部を中空にして薄肉化を図ることも容易に行うことができる。その結果、第１実施形態では、寸法精度を確保しやすい第１軸受部材５０を設けることができるとともに、第１軸受部材５０にファンネル形状部５２（ファンネル構造）を設けることができるので、ファンネル構造を設けながら、第１軸受部材５０の開口部２４近傍の部分により、弁体３２によるシール部近傍の寸法精度を確保することができる。   In the first embodiment, as described above, the first bearing mounting portion 70 to which the first bearing member 50 is mounted is provided so as to extend to the surge tank 1 between the adjacent intake ports 2 (second port portions 22). In addition, by providing the funnel-shaped portion 52 exposed in the surge tank 1 at one end of the first bearing member 50 on the surge tank 1 side with the first bearing member 50 mounted on the first bearing mounting portion 70. The first bearing member 50 having the funnel-shaped portion 52 may be provided instead of the partition wall portion from the first bearing mounting portion 70 that has been conventionally thick to the inlet portion 25 (surge tank 1) of the intake port 2. it can. Further, since the first bearing member 50 can be made smaller and simpler than the intake device main body 101 provided with the plurality of intake ports 2, for example, it is easy to reduce the thickness by making the interior hollow. Can be done. As a result, in the first embodiment, it is possible to provide the first bearing member 50 that is easy to ensure dimensional accuracy and to provide the first bearing member 50 with the funnel-shaped portion 52 (funnel structure). However, the dimensional accuracy in the vicinity of the seal portion by the valve body 32 can be ensured by the portion in the vicinity of the opening 24 of the first bearing member 50.

また、第１実施形態では、上記のように、第１軸受部材５０に、ファンネル形状部５２が形成された外壁部５１と、外壁部５１の内側に設けられた中空部５８とを設ける。これにより、内部を中空にした薄肉の外壁部５１を有する第１軸受部材５０を設けることができるので、第１軸受部材５０の寸法精度を向上させることができる。これにより、容易に、弁体３２によるシール部近傍の寸法精度を確保することができる。また、第１軸受部材５０の薄肉化によって材料使用量を低減することができる。   In the first embodiment, as described above, the first bearing member 50 is provided with the outer wall portion 51 in which the funnel-shaped portion 52 is formed and the hollow portion 58 provided on the inner side of the outer wall portion 51. Thereby, since the 1st bearing member 50 which has the thin outer wall part 51 which made the inside hollow can be provided, the dimensional accuracy of the 1st bearing member 50 can be improved. Thereby, the dimensional accuracy in the vicinity of the seal portion by the valve body 32 can be easily ensured. Further, the amount of material used can be reduced by reducing the thickness of the first bearing member 50.

また、第１実施形態では、上記のように、吸気装置本体１０１の第１軸受装着部７０を、隣り合う吸気ポート２間の隔壁１１をサージタンク１まで分断するように設ける。そして、第１軸受部材５０を、隔壁１１をサージタンク１まで分断する第１軸受装着部７０に第１軸受部材５０が装着された状態で、吸気装置本体１０１の隔壁１１と連続する外壁部５１を設ける。これにより、吸気装置本体１０１の隔壁１１から第１軸受部材５０の配置位置（第１軸受装着部７０）に対応する隔壁部分が分断（除去）されるので、第１軸受部材５０の配置位置において、隔壁１１の厚肉部分に代えて薄肉とすることが可能な第１軸受部材５０をサージタンク１まで延びるように配置することができる。また、サージタンク１まで延びる第１軸受部材５０に、分断された隔壁１１と連続する外壁部５１を設けることにより、第１軸受部材５０の外壁部５１を隔壁として機能させて吸気ポート２（第２ポート部２２）間を仕切ることができる。   Further, in the first embodiment, as described above, the first bearing mounting portion 70 of the intake device main body 101 is provided so as to divide the partition wall 11 between adjacent intake ports 2 to the surge tank 1. The first bearing member 50 is connected to the first bearing mounting portion 70 that divides the partition wall 11 up to the surge tank 1, and the outer wall portion 51 that is continuous with the partition wall 11 of the intake device body 101. Is provided. As a result, the partition wall portion corresponding to the arrangement position (first bearing mounting portion 70) of the first bearing member 50 is divided (removed) from the partition wall 11 of the intake device main body 101. Therefore, at the arrangement position of the first bearing member 50, The first bearing member 50 that can be made thin instead of the thick part of the partition wall 11 can be disposed so as to extend to the surge tank 1. Further, by providing the first bearing member 50 extending to the surge tank 1 with the outer wall portion 51 continuous with the divided partition wall 11, the outer wall portion 51 of the first bearing member 50 functions as a partition wall, and the intake port 2 (first The two port portions 22) can be partitioned.

また、第１実施形態では、上記のように、第１軸受部材５０のファンネル形状部５２が設けられた一端（下端）とは反対の他端（上端面）に、本体部分４ａの第１溶着部１３と面一になるように、本体部分４ｂの第２溶着部１４と溶着される軸受溶着部５３を設ける。これにより、第１軸受部材５０のサージタンク１側の一端にファンネル形状部５２を設けてサージタンク１内に露出させる構造でも、ファンネル形状部５２とは反対側の軸受溶着部５３で本体部分４ｂと溶着して第１軸受部材５０を強固に固定することができる。   Moreover, in 1st Embodiment, as mentioned above, the 1st welding of the main-body part 4a is carried out at the other end (upper end surface) opposite to the one end (lower end) in which the funnel-shaped part 52 of the 1st bearing member 50 was provided. A bearing weld portion 53 to be welded to the second weld portion 14 of the main body portion 4 b is provided so as to be flush with the portion 13. Thus, even in a structure in which the funnel-shaped portion 52 is provided at one end of the first bearing member 50 on the surge tank 1 side so as to be exposed in the surge tank 1, the main body portion 4b is formed by the bearing welded portion 53 on the opposite side to the funnel-shaped portion 52. And the first bearing member 50 can be firmly fixed.

また、第１実施形態では、上記のように、第１軸受部材５０を、隔壁１１に沿ったＡ方向の長さＬ２がＡ方向の開口部２４の長さＬ３の１／２以上である幅広形状に形成する。これにより、開口部２４近傍において広い範囲で第１軸受部材５０を設けることができる。弁体３２による開口部２４のシール性を確保するためには、開口部２４近傍における吸気装置本体１０１の寸法精度が重要となるので、この開口部２４近傍の広い範囲で寸法精度を確保しやすい第１軸受部材５０（第１軸受装着部７０）を設けることにより、開口部２４近傍（シール部近傍）の広い範囲で吸気装置本体１０１の寸法精度を確保することができる。   In the first embodiment, as described above, the first bearing member 50 has a wide width in which the length L2 in the A direction along the partition wall 11 is ½ or more of the length L3 of the opening 24 in the A direction. Form into shape. Thereby, the 1st bearing member 50 can be provided in the wide range in the opening part 24 vicinity. In order to ensure the sealing performance of the opening 24 by the valve body 32, the dimensional accuracy of the intake device main body 101 in the vicinity of the opening 24 is important. Therefore, it is easy to ensure the dimensional accuracy in a wide range in the vicinity of the opening 24. By providing the first bearing member 50 (the first bearing mounting portion 70), the dimensional accuracy of the intake device main body 101 can be ensured in a wide range near the opening 24 (near the seal portion).

また、第１実施形態では、上記のように、第１軸受部材５０の外壁部５１に、弁体３２が閉位置において当接するシール部５７を設ける。これにより、隔壁１１の厚肉部分に代えて第１軸受部材５０を設ける構成においても、寸法精度を確保しやすい第１軸受部材５０の外壁部５１に設けられたシール部５７によって、弁体３２が開口部２４を閉じた状態での高いシール性を確保することができる。   In the first embodiment, as described above, the seal portion 57 with which the valve body 32 abuts in the closed position is provided on the outer wall portion 51 of the first bearing member 50. Accordingly, even in the configuration in which the first bearing member 50 is provided in place of the thick portion of the partition wall 11, the valve body 32 is provided by the seal portion 57 provided on the outer wall portion 51 of the first bearing member 50 in which dimensional accuracy is easily secured. However, it is possible to ensure high sealing performance in a state where the opening 24 is closed.

また、第１実施形態では、上記のように、第１軸受部材５０を、隔壁１１に沿ったＡ方向の長さが、下端のファンネル形状部５２（長さＬ１）から上端側の軸受溶着部５３（長さＬ２）に向かうにつれて小さくなるテーパ形状に形成する。これにより、テーパ方向（先細りする先端側の方向）によって第１軸受部材５０の装着方向が特定されるので、第１軸受部材５０を装着する際に、第１軸受部材５０が誤った向きで装着されるのを防ぐことができる。また、テーパ形状の第１軸受部材５０を第１軸受装着部７０（吸気装置本体１０１）に装着する際に、第１軸受部材５０を圧入して固定することができる。   In the first embodiment, as described above, the length of the first bearing member 50 in the A direction along the partition wall 11 is such that the bearing welded portion on the upper end side from the funnel-shaped portion 52 (length L1) at the lower end. It forms in the taper shape which becomes small as it goes to 53 (length L2). As a result, the mounting direction of the first bearing member 50 is specified by the taper direction (the direction of the tapered tip side), so when the first bearing member 50 is mounted, the first bearing member 50 is mounted in an incorrect orientation. Can be prevented. Further, when the tapered first bearing member 50 is mounted on the first bearing mounting portion 70 (the intake device main body 101), the first bearing member 50 can be press-fitted and fixed.

また、第１実施形態では、上記のように第１軸受部材５０のファンネル形状部５２を、隔壁１１のサージタンク１側の端部に設けられた本体側ファンネル部１１ａと連続するように設ける。これにより、隔壁１１の本体側ファンネル部１１ａと連続する第１軸受部材５０のファンネル形状部５２によって、厚肉の本体側ファンネル部１１ａを第１軸受部材５０のファンネル形状部５２の分だけ減少させながら、本体側ファンネル部１１ａおよびファンネル形状部５２により、吸気ポート２（第２ポート部２２）の吸入効率を向上させることができる。   In the first embodiment, as described above, the funnel-shaped portion 52 of the first bearing member 50 is provided so as to be continuous with the main body-side funnel portion 11a provided at the end of the partition wall 11 on the surge tank 1 side. As a result, the thick-walled body-side funnel portion 11a is reduced by the funnel-shaped portion 52 of the first bearing member 50 by the funnel-shaped portion 52 of the first bearing member 50 that is continuous with the body-side funnel portion 11a of the partition wall 11. However, the suction efficiency of the intake port 2 (second port portion 22) can be improved by the main body side funnel portion 11a and the funnel shape portion 52.

また、第１実施形態では、上記のように、第２ポート部２２間の隔壁１１に沿ったＡ方向における第１軸受部材５０の長さＬ２を、Ａ方向における第２軸受部材６０の長さＬ４よりも大きくする。これにより、隣接する吸気ポート２が片側にのみ隣接する両端部（外壁１２）に設けられる第２軸受部材６０の長さよりも、第２ポート部２２間の隔壁１１に設けられる第１軸受部材５０の長さＬ２が大きくなるので、寸法精度を確保しにくい吸気ポート２間の隔壁１１の厚肉部分を、より広い範囲で寸法精度を確保しやすい第１軸受部材５０に置き換えることができる。その結果、吸気ポート２間の隔壁部分で、より広い範囲での寸法精度の確保を容易にすることができる。   In the first embodiment, as described above, the length L2 of the first bearing member 50 in the A direction along the partition wall 11 between the second port portions 22 is set to the length of the second bearing member 60 in the A direction. Make it larger than L4. Thus, the first bearing member 50 provided in the partition wall 11 between the second port portions 22 is longer than the length of the second bearing member 60 provided at both ends (outer wall 12) where the adjacent intake ports 2 are adjacent to only one side. Therefore, the thick portion of the partition wall 11 between the intake ports 2 where it is difficult to ensure the dimensional accuracy can be replaced with the first bearing member 50 that is easy to ensure the dimensional accuracy over a wider range. As a result, it is possible to easily ensure the dimensional accuracy in a wider range at the partition between the intake ports 2.

（第２実施形態）
次に、図１２〜図１６を参照して、本発明の第２実施形態による吸気装置２００の構成について説明する。第２実施形態では、隔壁１１に沿ったＡ方向の長さが上端の軸受溶着面５３側に向かうにつれて小さくなるテーパ形状の第１軸受部材５０を設けた上記第１実施形態とは異なり、下端のファンネル形状部側に向かうにつれてＡ方向の長さが小さくなるテーパ形状を有する第１軸受部材１５０を設ける例について説明する。なお、第１実施形態と同様の構成については同一の符号を使用し、説明を省略する。 (Second Embodiment)
Next, with reference to FIGS. 12-16, the structure of the intake device 200 by 2nd Embodiment of this invention is demonstrated. In the second embodiment, unlike the first embodiment in which the first bearing member 50 having a tapered shape whose length in the A direction along the partition wall 11 decreases toward the bearing welding surface 53 at the upper end is provided. An example in which the first bearing member 150 having a tapered shape in which the length in the A direction becomes smaller toward the funnel-shaped portion will be described. In addition, about the structure similar to 1st Embodiment, the same code | symbol is used and description is abbreviate | omitted.

図１２に示すように、第２実施形態による吸気装置２００では、隣り合う吸気ポート２間の隔壁１１に設けられた第１軸受装着部１７０に、ファンネル形状部１５２を有する第１軸受部材１５０が装着される。第１軸受部材１５０は、図１３および図１４に示すように、隣り合う吸気ポート２（第２ポート部２２）間の隔壁１１に沿ったＡ方向の長さが、上端の軸受溶着部１５３側から、サージタンク１側の下端のファンネル形状部１５２に向かうにつれて小さくなるテーパ形状を有する。すなわち、側端面１５５間の長さが、下端（ファンネル形状部１５２）でＬ５であり、上端（軸受溶着部１５３）でＬ５よりも小さいＬ６（Ｌ５＜Ｌ６）となるように外壁部１５１が形成されている。このため、第１軸受装着部１７０側も、隔壁１１の端面が第１軸受部材１５０に合わせて下方（Ｚ２方向）に向けて狭くなるテーパ形状となっている。   As shown in FIG. 12, in the intake device 200 according to the second embodiment, the first bearing member 150 having the funnel-shaped portion 152 is formed on the first bearing mounting portion 170 provided in the partition wall 11 between the adjacent intake ports 2. Installed. As shown in FIGS. 13 and 14, the first bearing member 150 has a length in the A direction along the partition wall 11 between the adjacent intake ports 2 (second port portions 22), and has a bearing welded portion 153 side at the upper end. To the funnel-shaped portion 152 at the lower end on the surge tank 1 side. That is, the outer wall 151 is formed so that the length between the side end faces 155 is L5 at the lower end (funnel-shaped portion 152) and L6 (L5 <L6) smaller than L5 at the upper end (bearing welded portion 153). Has been. For this reason, the end face of the partition 11 also has a tapered shape that narrows downward (Z2 direction) in accordance with the first bearing member 150 on the first bearing mounting portion 170 side.

上記第１実施形態の第１軸受部材５０（図１０参照）と比較すると、第２実施形態の第１軸受部材１５０の上端の軸受溶着部１５３側のＡ方向の長さＬ６は、第１軸受部材５０の上端の軸受溶着部５３側のＡ方向の長さＬ２（図１０参照）よりも大きい。このため、第２実施形態では、図１５に示すように、第１軸受部材１５０は、第２ポート部２２の上端の開口部２４側において、長さＬ２（図６参照）よりも広い範囲（長さＬ６）に渡って設けられている。なお、第２実施形態では、第１軸受部材１５０のＡ方向の長さＬ６は、開口部２４の長さＬ３の１／２よりも大きく、長さＬ３よりは小さい。   Compared with the first bearing member 50 (see FIG. 10) of the first embodiment, the length L6 in the A direction on the bearing welded portion 153 side at the upper end of the first bearing member 150 of the second embodiment is the first bearing. It is larger than the length L2 (see FIG. 10) in the A direction on the bearing welded portion 53 side at the upper end of the member 50. Therefore, in the second embodiment, as shown in FIG. 15, the first bearing member 150 is wider than the length L2 (see FIG. 6) on the opening 24 side at the upper end of the second port portion 22 (see FIG. 6). It is provided over a length L6). In the second embodiment, the length L6 of the first bearing member 150 in the A direction is larger than ½ of the length L3 of the opening 24 and smaller than the length L3.

また、第１軸受部材１５０の下端のファンネル形状部１５２側のＡ方向の長さＬ５は、上記第１実施形態の第１軸受部材５０のファンネル形状部５２側のＡ方向の長さＬ１（図１０参照）よりも小さい。このため、第２実施形態では、図１６に示すように、第１軸受部材１５０は、第２ポート部２２の下端の入口部２５側において、長さＬ１（図８参照）よりも狭い範囲（長さＬ５）で設けられている。   A length L5 in the A direction on the funnel shape portion 152 side at the lower end of the first bearing member 150 is a length L1 in the A direction on the funnel shape portion 52 side of the first bearing member 50 of the first embodiment (see FIG. 10). Therefore, in the second embodiment, as shown in FIG. 16, the first bearing member 150 is narrower than the length L1 (see FIG. 8) on the inlet 25 side of the lower end of the second port portion 22 (see FIG. 8). It is provided with a length L5).

また、第２実施形態では、第１軸受部材１５０および第１軸受装着部１７０のテーパ形状の向きが上記第１実施形態の第１軸受部材５０とは逆になっているため、第１軸受部材１５０を第１軸受装着部１７０に装着する際には、図１２に示すように、テーパの先端であるファンネル形状部１５２側を吸気装置本体２０１の本体部分１０４ａに対して上方（Ｚ１方向側）から挿入する。すなわち、第１軸受部材１５０は、吸気装置本体２０１の第１軸受装着部１７０に上方から下方（Ｚ２方向）に向けて圧入されるようにして装着される。なお、本体部分１０４ａは、本発明の「第１吸気装置本体部」の一例である。   In the second embodiment, since the direction of the tapered shape of the first bearing member 150 and the first bearing mounting portion 170 is opposite to that of the first bearing member 50 of the first embodiment, the first bearing member When mounting 150 to the first bearing mounting portion 170, as shown in FIG. 12, the funnel-shaped portion 152 side, which is the tip of the taper, is above the main body portion 104a of the intake device main body 201 (Z1 direction side). Insert from. That is, the first bearing member 150 is mounted so as to be press-fitted into the first bearing mounting portion 170 of the intake device main body 201 from the upper side to the lower side (Z2 direction). The main body portion 104a is an example of the “first intake device main body” in the present invention.

なお、第２実施形態のその他の構成は、上記第１実施形態と同様である。   In addition, the other structure of 2nd Embodiment is the same as that of the said 1st Embodiment.

第２実施形態では、上記のように、第１軸受部材１５０を、隔壁１１に沿ったＡ方向の長さが、上端の軸受溶着部１５３（長さＬ６）側から下端のファンネル形状部１５２（長さＬ５）に向かうにつれて小さくなるテーパ形状に形成する。これにより、テーパ方向によって第１軸受部材１５０の向きが特定されるので、隔壁１１の厚肉部分に代えて第１軸受部材１５０を設ける構成においても、第１軸受部材１５０が誤った向きで装着されるのを防ぐことができる。また、テーパ形状の第１軸受部材１５０を第１軸受装着部１７０に装着する際に、第１軸受部材１５０を圧入して強固に固定することができる。   In the second embodiment, as described above, the length of the first bearing member 150 in the A direction along the partition wall 11 is such that the upper end portion of the bearing welded portion 153 (length L6) to the lower end funnel shape portion 152 ( It is formed in a tapered shape that becomes smaller toward the length L5). Thereby, since the direction of the first bearing member 150 is specified by the taper direction, the first bearing member 150 is mounted in the wrong direction even in the configuration in which the first bearing member 150 is provided instead of the thick part of the partition wall 11. Can be prevented. In addition, when the tapered first bearing member 150 is mounted on the first bearing mounting portion 170, the first bearing member 150 can be press-fitted and firmly fixed.

なお、第２実施形態のその他の効果は、上記第１実施形態と同様である。   The remaining effects of the second embodiment are similar to those of the aforementioned first embodiment.

なお、上記第１および第２実施形態のように、隣り合う吸気ポート２（第２ポート部２２）間の隔壁１１を第１軸受装着部（７０、１７０）によって分断し、隔壁１１の分断部分に第１軸受部材（５０、１５０）を設けることによって、第１軸受部材を装着する際の装着方向を、本体部分４ａの下側から上方（第１軸受部材５０）に向かう方向と、本体部分１０４ａの上側から下方（第１軸受部材１５０）に向かう方向との２通りの内から選択することが可能となる。このため、吸気装置本体１０１（２０１）を構成する各本体部分（４ａ〜４ｅ、１０４ａ）の形状に応じて、上記第１実施形態の第１軸受部材５０（下側から装着）または第２実施形態の第１軸受部材１５０（上側から装着）のいずれかを選択することができるので、第１軸受部材（５０、１５０）を装着するための構造に関して、本体部分（４ａ〜４ｅ、１０４ａ）の設計上および製造上の制約を軽減すること（すなわち、設計上および製造上の自由度を増大させること）が可能である。   As in the first and second embodiments, the partition wall 11 between the adjacent intake ports 2 (second port portion 22) is divided by the first bearing mounting portions (70, 170), and the divided portion of the partition wall 11 is divided. By providing the first bearing member (50, 150) on the first bearing member, the mounting direction when the first bearing member is mounted is changed from the lower side of the main body portion 4a toward the upper side (first bearing member 50) and the main body portion. It is possible to select from two types, that is, the direction from the upper side of 104a to the lower side (first bearing member 150). For this reason, according to the shape of each main body part (4a-4e, 104a) which comprises the intake device main body 101 (201), the 1st bearing member 50 (mounted from the lower side) of the said 1st Embodiment or 2nd implementation. Since one of the first bearing members 150 (mounted from the upper side) can be selected, the structure of the first bearing member (50, 150) can be selected for the main body portions (4a to 4e, 104a). It is possible to reduce design and manufacturing constraints (ie, increase design and manufacturing freedom).

なお、今回開示された実施形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した実施形態の説明ではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。   The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

たとえば、上記第１および第２実施形態では、本発明の吸気制御弁および吸気装置を、自動車用の直列４気筒エンジンに適用する例を示したが、本発明はこれに限られない。本発明の吸気制御弁および吸気装置を、自動車用のエンジン以外の内燃機関に適用してもよいし、直列４気筒エンジン以外の内燃機関に適用してもよい。   For example, in the first and second embodiments, the example in which the intake control valve and the intake device of the present invention are applied to an in-line four-cylinder engine for automobiles is shown, but the present invention is not limited to this. The intake control valve and the intake device of the present invention may be applied to an internal combustion engine other than an automobile engine, or may be applied to an internal combustion engine other than an in-line four-cylinder engine.

また、上記第１および第２実施形態では、本発明の吸気制御弁を、吸気経路長を変更する可変吸気用の吸気制御弁に適用する例を示したが、本発明はこれに限られない。本発明の吸気制御弁を、縦渦を発生させるＴＣＶ（タンブルコントロールバルブ）や横渦を発生させるＳＣＶ（スワールコントロールバルブ）など、可変吸気用の吸気制御弁以外に適用してもよい。   In the first and second embodiments, the example in which the intake control valve of the present invention is applied to the intake control valve for variable intake that changes the intake path length has been shown, but the present invention is not limited to this. . The intake control valve of the present invention may be applied in addition to an intake control valve for variable intake, such as a TCV (tumble control valve) that generates a vertical vortex and an SCV (swirl control valve) that generates a horizontal vortex.

また、上記第１および第２実施形態では、第１軸受部材を樹脂により形成する例を示したが、本発明はこれに限られない。本発明では、たとえば、ゴムなど、樹脂以外の材料により軸受部材を形成してもよい。   Moreover, in the said 1st and 2nd embodiment, although the example which forms a 1st bearing member with resin was shown, this invention is not limited to this. In the present invention, for example, the bearing member may be formed of a material other than resin such as rubber.

また、上記第１および第２実施形態では、第１軸受部材（５０、１５０）に軸受溶着部（５３、１５３）を設けて、本体部分４ｂの第２溶着部１４と溶着接合するように構成した例を示したが、本発明はこれに限られない。本発明では、第１軸受部材を溶着しなくともよい。たとえば、第１軸受部材（５０、１５０）の端面（５５、１５５）の部分が、第１軸受装着部（７０、１７０）に露出する隔壁１１の端面と係合するように構成してもよい。係合構造としては、たとえばそれぞれの端面が互いに係合するように段差状部分や突起部分を形成するなどがある。   Moreover, in the said 1st and 2nd embodiment, it comprises so that a 1st bearing member (50,150) may be provided with a bearing welding part (53,153), and it may weld-join with the 2nd welding part 14 of the main-body part 4b. However, the present invention is not limited to this. In the present invention, the first bearing member may not be welded. For example, you may comprise so that the part of the end surface (55,155) of a 1st bearing member (50,150) may engage with the end surface of the partition 11 exposed to a 1st bearing mounting part (70,170). . As an engagement structure, for example, a stepped portion or a protruding portion is formed so that the respective end faces engage with each other.

また、上記第１および第２実施形態では、第１軸受装着部によって隔壁を完全に分断するように構成した例を示したが、本発明はこれに限られない。本発明では、隔壁を完全に分断しなくともよい。たとえば、図７に示した上記第１実施形態の構成において、第２ポート部２２の入口部２５から開口部２４までの範囲で第１軸受装着部７０を凹状に形成し、第１溶着部１３側の隔壁１１を分断（除去）せずに残すようにしてもよい。   Moreover, in the said 1st and 2nd embodiment, although the example comprised so that a partition might be completely parted by the 1st bearing mounting part was shown, this invention is not limited to this. In the present invention, the partition does not have to be completely divided. For example, in the configuration of the first embodiment shown in FIG. 7, the first bearing mounting portion 70 is formed in a concave shape in the range from the inlet portion 25 to the opening portion 24 of the second port portion 22, and the first weld portion 13. The side partition 11 may be left without being divided (removed).

また、上記第１および第２実施形態では、第１軸受部材（５０、１５０）の外壁部の内部に中空部を形成した例を示したが、本発明はこれに限られない。本発明では、第１軸受部材（外壁部）の内部を中空にしなくともよい。   Moreover, although the said 1st and 2nd embodiment showed the example which formed the hollow part inside the outer wall part of a 1st bearing member (50,150), this invention is not limited to this. In the present invention, the interior of the first bearing member (outer wall portion) need not be hollow.

また、上記第１および第２実施形態では、第１軸受部材のＡ方向の長さ（Ｌ２、Ｌ６）を、開口部２４の長さＬ３の１／２よりも大きく、長さＬ３よりは小さくなるように構成した例を示したが、本発明はこれに限られない。本発明では、第１軸受部材の長さを、開口部の長さ以上に形成してもよい。また、第１軸受部材の長さを、開口部の長さの１／２未満に形成してもよいが、開口部近傍の隔壁部分の寸法精度を確保する観点からは、第１軸受部材の長さを大きくすることが好ましい。   In the first and second embodiments, the length (L2, L6) of the first bearing member in the A direction is larger than ½ of the length L3 of the opening 24 and smaller than the length L3. Although an example of the configuration is shown, the present invention is not limited to this. In this invention, you may form the length of a 1st bearing member more than the length of an opening part. Further, the length of the first bearing member may be less than ½ of the length of the opening, but from the viewpoint of ensuring the dimensional accuracy of the partition wall portion in the vicinity of the opening, It is preferable to increase the length.

また、上記第１および第２実施形態では、第１軸受部材をテーパ形状に形成した例を示したが、本発明はこれに限られない。本発明では、第１軸受部材をテーパ形状に形成しなくともよい。   Moreover, in the said 1st and 2nd embodiment, although the example which formed the 1st bearing member in the taper shape was shown, this invention is not limited to this. In the present invention, the first bearing member need not be formed in a tapered shape.

また、上記第１および第２実施形態では、第１軸受部材のファンネル形状部を本体部分４ａの本体側ファンネル部１１ａと連続するように形成した例を示したが、本発明はこれに限られない。本発明では、第１軸受部材のファンネル形状部を本体側ファンネル部の形成部分まで延ばすことにより、隔壁に沿ったＡ方向に延びるファンネル構造部分を第１軸受部材のファンネル形状部のみにより構成してもよい。   In the first and second embodiments, the funnel-shaped portion of the first bearing member is formed so as to be continuous with the main body side funnel portion 11a of the main body portion 4a. However, the present invention is not limited to this. Absent. In the present invention, the funnel-shaped portion of the first bearing member is extended to the formation portion of the main body-side funnel portion, so that the funnel structure portion extending in the A direction along the partition wall is constituted only by the funnel-shaped portion of the first bearing member. Also good.

１ サージタンク
２ 吸気ポート
４ａ、１０４ａ 本体部分（第１吸気装置本体部）
４ｂ 本体部分（第２吸気装置本体部）
１１ 隔壁
１１ａ 本体側ファンネル部
１３ 第１溶着部
１４ 第２溶着部
３ 吸気制御弁
３１ 回動軸
３２ 弁体
５０、１５０ 第１軸受部材（軸受部材）
５１、１５１ 外壁部
５２、１５２ ファンネル形状部
５３、１５３ 軸受溶着部
５７ シール部
５８ 中空部
６０ 第２軸受部材
７０ 第１軸受装着部（軸受装着部）
１０１、２０１ 吸気装置本体
１００、２００ 吸気装置 DESCRIPTION OF SYMBOLS 1 Surge tank 2 Intake port 4a, 104a Main part (1st intake device main part)
4b Main body (second air intake device main body)
DESCRIPTION OF SYMBOLS 11 Partition 11a Main body side funnel part 13 1st welding part 14 2nd welding part 3 Intake control valve 31 Rotating shaft 32 Valve body 50, 150 1st bearing member (bearing member)
51, 151 Outer wall portion 52, 152 Funnel-shaped portion 53, 153 Bearing welded portion 57 Seal portion 58 Hollow portion 60 Second bearing member 70 First bearing mounting portion (bearing mounting portion)
101, 201 Intake device body 100, 200 Intake device

Claims (10)

サージタンクと前記サージタンクの下流側に配置された複数の吸気ポートとを有する吸気装置本体と、
前記サージタンクと前記吸気ポートとの間に設けられた開口部を開閉するように回動可能に設けられた弁体と、
前記弁体とともに回動する回動軸と、
隣り合う前記吸気ポート間に設けられ、前記弁体の回動軸を回動可能に支持する第１軸受部材と、を備え、
前記吸気装置本体は、隣り合う前記吸気ポート間において前記サージタンクまで延びるように設けられるとともに、前記第１軸受部材が装着される軸受装着部を含み、
前記第１軸受部材は、前記軸受装着部に装着された状態で、前記サージタンク側の一端に、前記サージタンク内に露出するファンネル形状部を含む、吸気装置。 An intake device main body having a surge tank and a plurality of intake ports disposed downstream of the surge tank;
A valve body rotatably provided to open and close an opening provided between the surge tank and the intake port;
A rotating shaft that rotates together with the valve body;
A first bearing member provided between the adjacent intake ports and rotatably supporting a rotation shaft of the valve body;
The intake device body includes a bearing mounting portion that is provided to extend to the surge tank between the adjacent intake ports, and to which the first bearing member is mounted,
The first bearing member includes a funnel-shaped portion exposed in the surge tank at one end on the surge tank side in a state of being mounted on the bearing mounting portion. 前記第１軸受部材は、前記ファンネル形状部が形成された外壁部と、前記外壁部の内側に設けられた中空部とを有している、請求項１に記載の吸気装置。   2. The intake device according to claim 1, wherein the first bearing member has an outer wall portion in which the funnel-shaped portion is formed and a hollow portion provided inside the outer wall portion. 前記吸気装置本体の前記軸受装着部は、隣り合う前記吸気ポート間の隔壁を前記サージタンクまで分断するように設けられ、
前記第１軸受部材は、前記隔壁を前記サージタンクまで分断する前記軸受装着部に前記第１軸受部材が装着された状態で、前記吸気装置本体の前記隔壁と連続する外壁部を有する、請求項１または２に記載の吸気装置。 The bearing mounting portion of the intake device body is provided to divide a partition wall between the adjacent intake ports to the surge tank,
The said 1st bearing member has an outer wall part which follows the said partition of the said intake device main body in the state with which the said 1st bearing member was mounted to the said bearing mounting part which divides | segments the said partition to the said surge tank. The air intake device according to 1 or 2. 前記吸気装置本体は、隣り合う前記吸気ポート間の隔壁に沿って延びるように設けられた第１溶着部を含む樹脂製の第１吸気装置本体部と、前記第１吸気装置本体部の第１溶着部と溶着されるとともに前記吸気ポート間の隔壁に沿って延びるように設けられた第２溶着部を有し、前記第１吸気装置本体部とともに前記吸気ポートを構成する樹脂製の第２吸気装置本体部とを含み、
前記第１軸受部材の前記ファンネル形状部が設けられた一端とは反対の他端には、前記第１吸気装置本体部の前記第１溶着部と面一になるように配置され、前記第２溶着部と溶着される軸受溶着部が設けられている、請求項１〜３のいずれか１項に記載の吸気装置。 The intake device body includes a resin-made first intake device body portion including a first weld portion provided so as to extend along a partition wall between the adjacent intake ports, and a first of the first intake device body portions. A second welded portion made of resin having a second welded portion that is welded to the welded portion and extends along a partition wall between the intake ports, and that constitutes the intake port together with the first intake device main body. Including the device main body,
The other end of the first bearing member opposite to the one provided with the funnel-shaped portion is disposed so as to be flush with the first welded portion of the first intake device main body, and the second The intake device according to any one of claims 1 to 3, wherein a bearing weld portion to be welded to the weld portion is provided. 前記第１軸受部材は、隣り合う前記吸気ポート間の隔壁に沿った方向の長さが前記隔壁に沿った方向の前記開口部の長さの１／２以上である幅広形状を有する、請求項１〜４のいずれか１項に記載の吸気装置。   The said 1st bearing member has a wide shape whose length of the direction along the partition between the said adjacent intake ports is 1/2 or more of the length of the said opening part in the direction along the said partition. The intake device according to any one of 1 to 4. 前記第１軸受部材の外壁部には、前記弁体が閉位置において当接するシール部が設けられている、請求項１〜５のいずれか１項に記載の吸気装置。   The intake device according to any one of claims 1 to 5, wherein a seal portion with which the valve body abuts in a closed position is provided on an outer wall portion of the first bearing member. 前記第１軸受部材における、隣り合う前記吸気ポート間の隔壁に沿った方向の長さは、前記サージタンク側の一端の前記ファンネル形状部側または前記ファンネル部とは反対の他端側に向かうにつれて小さくなるテーパ形状を有する、請求項１〜６のいずれか１項に記載の吸気装置。   The length of the first bearing member in the direction along the partition wall between the adjacent intake ports is toward the funnel-shaped portion side of the one end on the surge tank side or the other end side opposite to the funnel portion. The intake device according to claim 1, wherein the intake device has a tapered shape that becomes smaller. 前記吸気装置本体は、前記隔壁の前記サージタンク側の端部に設けられた本体側ファンネル部を含み、
前記第１軸受部材の前記ファンネル形状部は、前記吸気装置本体の前記隔壁の前記本体側ファンネル部と連続するように設けられている、請求項１〜７のいずれか１項に記載の吸気装置。 The intake device main body includes a main body side funnel portion provided at an end portion of the bulkhead on the surge tank side,
The intake device according to any one of claims 1 to 7, wherein the funnel-shaped portion of the first bearing member is provided so as to be continuous with the body-side funnel portion of the partition wall of the intake device body. . 複数の前記吸気ポートの両端に設けられ、それぞれ前記弁体の回動軸の端部を回動可能に支持する第２軸受部材をさらに備え、
隣り合う前記吸気ポート間の隔壁に沿った方向における前記第１軸受部材の長さは、隣り合う前記吸気ポート間の隔壁に沿った方向における前記第２軸受部材の長さよりも大きい、請求項１〜８のいずれか１項に記載の吸気装置。 A second bearing member provided at both ends of the plurality of intake ports, each of which rotatably supports an end of a rotation shaft of the valve body;
2. The length of the first bearing member in the direction along the partition between the adjacent intake ports is greater than the length of the second bearing member in the direction along the partition between the adjacent intake ports. The inhaler of any one of -8. 吸気装置本体のサージタンクと、前記サージタンクの下流側に配置された吸気ポートとの間に設けられた開口部を開閉するように回動可能に設けられ、前記開口部を開閉することにより前記吸気ポートの長さを変化させる弁体と、
前記弁体とともに回動する回動軸と、
前記吸気装置本体の隣り合う前記吸気ポート間に設けられた軸受装着部に装着され、前記弁体の回動軸を回動可能に支持する軸受部材と、を備え、
前記軸受部材は、隣り合う前記吸気ポート間において前記サージタンクまで延びるように設けられた前記軸受装着部に装着された状態で、前記サージタンク側の一端に前記サージタンク内に露出するファンネル形状部を含む、吸気制御弁。 An opening provided between a surge tank of the intake device main body and an intake port disposed on the downstream side of the surge tank is provided so as to open and close, and by opening and closing the opening, the opening is opened and closed. A valve body that changes the length of the intake port;
A rotating shaft that rotates together with the valve body;
A bearing member mounted on a bearing mounting portion provided between the intake ports adjacent to each other of the intake device body, and rotatably supporting a rotation shaft of the valve body;
The funnel-shaped portion exposed in the surge tank at one end on the surge tank side in a state where the bearing member is mounted on the bearing mounting portion provided so as to extend to the surge tank between the adjacent intake ports. Including an intake control valve.
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