JP2011247274A5 - - Google Patents
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- JP2011247274A5 JP2011247274A5 JP2011199462A JP2011199462A JP2011247274A5 JP 2011247274 A5 JP2011247274 A5 JP 2011247274A5 JP 2011199462 A JP2011199462 A JP 2011199462A JP 2011199462 A JP2011199462 A JP 2011199462A JP 2011247274 A5 JP2011247274 A5 JP 2011247274A5
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- 239000011324 bead Substances 0.000 claims description 63
- 238000003466 welding Methods 0.000 claims description 25
- 230000003014 reinforcing Effects 0.000 claims description 21
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 210000000614 Ribs Anatomy 0.000 description 4
- 210000003660 Reticulum Anatomy 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
本発明は，略水平姿勢で並列する複数の吸気分配管を一側壁に備えると共に，他の壁に吸気入口管を備え，内部には吸気入口管と吸気分配管との間を連通するサージ室と，このサージ室に連通路を介して連通するレゾネータ室とを備えるエンジン用吸気マニフォルドに関する。 The present invention includes a plurality of intake pipes arranged in parallel in a substantially horizontal posture on one side wall, an intake inlet pipe on the other wall, and a surge chamber that communicates between the intake inlet pipe and the intake pipe. And an intake manifold for an engine having a resonator chamber communicating with the surge chamber via a communication passage.
従来，自動車において，エンジンの吸気ダクトの上部に，その内部に連通するレゾネータ室を形成し，吸気系に発生する吸気脈動騒音をレゾネータ室の共鳴作用により消音することが，例えば特許文献１に開示されているように，既に知られている。 Conventionally, in an automobile, for example, Patent Document 1 discloses that a resonator chamber communicating with an interior of an intake duct of an engine is formed at an upper portion of an engine, and intake pulsation noise generated in the intake system is silenced by a resonance action of the resonator chamber. As it is already known.
ところで，略水平姿勢で並列する複数の吸気分配管を一側壁に備えると共に，他の壁に吸気入口管を備え，内部には吸気入口管と吸気分配管との間を連通するサージ室を備える吸気マニフォルドに，上記の従来技術を適用しようとすると，吸気マニフォルドのサージ室の上方又は下方にレゾネータ室を配置して，両室間を連通させることになるが，こうして構成したレゾネータ付き吸気マニフォルドは，自動車の狭小なエンジンルームに収容される場合には，サージ室の上方又は下方に大きく突出したレゾネータ室がエンジンやボンネットに干渉する虞があるため，そのレゾネータ室に充分な容積を与えることができない嫌いがある。 By the way, a plurality of intake pipes arranged in parallel in a substantially horizontal posture are provided on one side wall, an intake inlet pipe is provided on the other wall, and a surge chamber is provided inside to communicate between the intake inlet pipe and the intake pipe. If the above prior art is applied to the intake manifold, a resonator chamber is arranged above or below the surge chamber of the intake manifold to allow communication between the two chambers. When housed in a narrow engine room of an automobile, the resonator chamber that protrudes greatly above or below the surge chamber may interfere with the engine or bonnet. There is a dislike that can not be
本発明は，かゝる事情に鑑みてなされたもので，吸気マニフォルド上面及び下面からのレゾネータ室の突出量を小さく抑えながらその容積を充分に確保し得るようにしたコンパクトな前記エンジン用吸気マニフォルドを提供することを目的とする。 The present invention has been made in view of such circumstances, and is a compact engine intake manifold that can sufficiently secure the volume while suppressing the amount of protrusion of the resonator chamber from the upper surface and the lower surface of the intake manifold. The purpose is to provide.
上記目的を達成するために，本発明は，略水平姿勢で並列する複数の吸気分配管を一側壁に備えると共に，他の壁に吸気入口管を備え，内部には吸気入口管と吸気分配管との間を連通するサージ室と，このサージ室に連通路を介して連通するレゾネータ室とを備えるエンジン用吸気マニフォルドであって，隣り合う吸気分配管の間に，前記レゾネータ室の一部となるレゾネータ小室を形成したことを第１の特徴とする。 In order to achieve the above object, the present invention comprises a plurality of intake pipes arranged in parallel in a substantially horizontal posture on one side wall and an intake inlet pipe on the other wall, and an intake inlet pipe and an intake pipe in the inside. An intake manifold for an engine comprising a surge chamber that communicates with the surge chamber and a resonator chamber that communicates with the surge chamber via a communication passage, and a part of the resonator chamber between adjacent intake distribution pipes. The first feature is that a resonator chamber is formed .
また本発明は，第１の特徴に加えて，複数の吸気分配管，サージ室の一半部，レゾネータ小室，及び連通路の一半部となる第１凹溝を有する合成樹脂製の第１マニフォルド半体と，サージ室の他半部，及び連通路の他半部となる第２凹溝を有する合成樹脂製の第２マニフォルド半体との相対向する接合面を相互に溶着してなり，第１マニフォルド半体の下面には，サージ室，複数の吸気分配管及びレゾネータ小室に囲まれる凹部を形成し，この凹部を，第１及び第２マニフォルド半体相互の溶着時，第１マニフォルド半体を支持する支持台のバックアップ凸部の嵌合用としたことを第２の特徴とする。 In addition to the first feature, the present invention provides a first manifold half made of a synthetic resin having a plurality of intake pipes, a half of a surge chamber, a resonator chamber, and a first concave groove serving as a half of a communication path. The opposing joint surfaces of the body and the second half of the synthetic resin having the second concave groove which is the other half of the surge chamber and the other half of the communication passage are welded to each other. A concave portion surrounded by a surge chamber, a plurality of intake pipes and a resonator small chamber is formed on the lower surface of the one manifold half, and the first manifold half is formed when the first and second manifold halves are welded to each other. The second feature is that the back-up convex portion of the support base that supports the base is fitted .
さらに本発明は，第２の特徴に加えて，第１及び第２マニフォルド半体の両接合面には，サージ室及びレゾネータ室間を区画するように相互に溶着される下部溶着ビード及び上部溶着ビードをそれぞれ形成し，また前記凹部の天井壁に，前記下部溶着ビードに連続する下部補強溶着ビードを形成すると共に，前記上部溶着ビードに連続して前記下部補強溶着ビードと溶着される上部補強溶着ビードを第２マニフォルド半体に形成したことを第３の特徴とする。 In addition to the second feature, the present invention further includes a lower weld bead and an upper weld that are welded to each other so as to partition the surge chamber and the resonator chamber at both joint surfaces of the first and second manifold halves. Forming a lower reinforcing weld bead continuous to the lower weld bead on the ceiling wall of the recess, and an upper reinforcing weld welded to the lower reinforcing weld bead continuously to the upper weld bead; A third feature is that the bead is formed in the second manifold half .
本発明の第１の特徴によれば，レゾネータ室の一部を構成するレゾネータ小室は，隣り合う吸気分配管の間のデッドスペースを利用して形成されるので，レゾネータ室に充分な容積を付与し得ると共に，レゾネータ室の吸気マニフォルド下面への不必要な突出を防ぐことができ，したがって吸気マニフォルドのコンパクト化を図りつゝ，レゾネータ室の機能を高めることができる。 According to the first feature of the present invention, the resonator chamber constituting a part of the resonator chamber is formed by using a dead space between adjacent intake pipes, so that a sufficient volume is given to the resonator chamber. In addition, unnecessary protrusion of the resonator chamber to the lower surface of the intake manifold can be prevented, so that the intake manifold can be made compact and the function of the resonator chamber can be enhanced.
本発明の第２の特徴によれば，第１及び第２マニフォルド半体の二部材の溶着により，レゾネータ付きのコンパクトな吸気マニフォルドを簡単に構成することができる。その際，第１マニフォルド半体下面の，サージ室，複数の吸気分配管及びレゾネータ小室に囲まれる凹部が，第１及び第２マニフォルド半体相互の溶着時，第１マニフォルド半体を支持する支持台のバックアップ凸部の嵌合用凹部とされるので，第１及び第２マニフォルド半体の中間部の撓みを支持台のバックアップ凸部により防ぐことができる。したがって，第１マニフォルド半体の中間部に，バックアップ凸部の嵌合のための専用の凹部を形成する必要がないから，第１マニフォルド半体の本来の構造及び形状を変更することなく，第１及び第２マニフォルド半体の中間部相互の溶着をも確実に行うことができる。 According to a second aspect of the present invention, by welding the first and second manifold halves of the two members can be configured easily compact intake manifold with a resonator. At this time, a recess surrounded by a surge chamber, a plurality of intake pipes and a resonator small chamber on the lower surface of the first manifold half supports the first manifold half when the first and second manifold halves are welded to each other. Since the concave portion for fitting the backup convex portion of the base is used, the intermediate portion of the first and second manifold halves can be prevented from being bent by the backup convex portion of the support base. Therefore, it is not necessary to form a dedicated recess for fitting the backup convex portion in the intermediate portion of the first manifold half, so that the original structure and shape of the first manifold half can be changed without changing the original structure and shape. Welding between the intermediate portions of the first and second manifold halves can also be performed reliably.
本発明の第３の特徴によれば，下部及び上部補強溶着ビード相互の溶着により，サージ室及びレゾネータ室間を区画するように相互に溶着される下部及び上部溶着ビードの中間部相互の溶着強度を増強することができる。しかも下部補強溶着ビードは，バックアップ凸部が嵌合する凹部の天井壁を利用して，その上面に形成されるので，バックアップ凸部が嵌合する凹部は，下部補強溶着ビードの略直下に位置することになり，その下部補強溶着ビード周りの撓みを強固に抑え，下部及び上部補強溶着ビード相互の溶着を，より確実に行うことができる。 According to a third aspect of the present invention, the welding of the lower portion and the upper reinforcing weld bead mutually intermediate portion cross the lower and upper weld bead to be welded to each other so as to partition between the surge chamber and resonator chamber welding Strength can be increased. In addition, since the lower reinforcing weld bead is formed on the upper surface of the recess using the ceiling wall of the recessed portion to which the backup convex portion is fitted, the concave portion to which the backup convex portion is fitted is positioned substantially immediately below the lower reinforcing weld bead. Therefore, the bending around the lower reinforcing weld bead can be suppressed firmly, and the lower and upper reinforcing weld beads can be more reliably welded to each other.
本発明の実施の形態を添付図面に基づいて以下に説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
先ず，図１〜図３において，符号Ｍは自動車に搭載される４気筒エンジンＥ用の吸気マニフォルドを示す。この吸気マニフォルドＭは，図１で左右方向を長手方向とする箱形をなしており，その長手方向に沿う一側壁には，略水平姿勢で並列する４本の吸気分配管１，１…が形成され，これら吸気分配管１，１…の下流端には，これらを相互に一体に連結する共通の取り付けフランジ２が一体に形成される。この取り付けフランジ４は，エンジンＥに複数のボルトにより結合されるようになっている。この吸気マニフォルドＭは，図２に示すように，自動車のエンジンルームＲ内に収容される場合，ボンネットＢの下面に近接するようにエンジンルームＲ内の上部に配置される。 First, in FIG. 1 to FIG. 3, a symbol M indicates an intake manifold for a four-cylinder engine E mounted on an automobile. The intake manifold M has a box shape whose longitudinal direction is the left-right direction in FIG. 1, and four intake distribution pipes 1, 1,. A common mounting flange 2 is integrally formed at the downstream end of the intake pipes 1, 1. The mounting flange 4 is connected to the engine E by a plurality of bolts. As shown in FIG. 2, the intake manifold M is disposed in the upper part of the engine room R so as to be close to the lower surface of the bonnet B when housed in the engine room R of the automobile.
また吸気マニフォルドＭの，４本の吸気分配管１，１…の配列方向に沿う一端壁には吸気入口管３が一体に形成され，この吸気入口管３の上流には方形の取り付けフランジ４が一体に形成される。この取り付けフランジ４にはスロットルボディＴが複数のボルトにより取り付けられるようになっている。 Further, an intake inlet pipe 3 is integrally formed on one end wall of the intake manifold M along the arrangement direction of the four intake distribution pipes 1, 1..., And a rectangular mounting flange 4 is provided upstream of the intake inlet pipe 3. It is integrally formed. A throttle body T is attached to the attachment flange 4 with a plurality of bolts.
さらに吸気マニフォルドＭの内部は，図４〜図９に示すように，吸気入口管３と４本の吸気分配管１，１…との間を連通するサージ室５になっており，このサージ室５には，吸気入口管３のサージ室５への開口端の，吸気分配管１，１…側の端縁から吸気分配管１，１…の配列方向に延びてサージ室５の略中央部に達する吸気案内壁６が配設される。この吸気案内壁６は，図４〜図６に明示するように，サージ室５内方に向うにつれて吸気分配管１，１…から離れるよう吸気入口管３の軸線Ｘに対して僅かに傾斜している。また吸気案内壁６の，吸気分配管１，１…と反対側の一側面は，吸気入口管３の内周面に連なる平滑面６ａに形成される。 Further, as shown in FIGS. 4 to 9, the inside of the intake manifold M is a surge chamber 5 that communicates between the intake inlet pipe 3 and the four intake distribution pipes 1, 1,... 5, the opening end of the intake inlet pipe 3 to the surge chamber 5 extends from the edge of the intake distribution pipes 1, 1... In the arrangement direction of the intake distribution pipes 1, 1. An intake guide wall 6 is provided. As clearly shown in FIGS. 4 to 6, the intake guide wall 6 is slightly inclined with respect to the axis X of the intake inlet pipe 3 so as to move away from the intake distribution pipes 1, 1. ing. Further, one side surface of the intake guide wall 6 opposite to the intake distribution pipes 1, 1...
而して，エンジンの吸気作用に伴ない吸気入口管３に流入した空気は，図４及び図６に矢印Ｄ１で示すように，吸気入口管３の内面に連なる吸気案内壁６の平滑面６ａによりスムーズに誘導されることにより，圧力損失することなくサージ室５の中央部に到達することができる。したがって，吸気入口管３と，並列する４本の吸気分配管１，１…との各間の距離の長短に拘らず，上記空気は，図４及び図６に矢印Ｄ２で示すように，サージ室５の中央部から４本の吸気分配管１，１…へと略均等に分配されることになり，エンジンＥの各気筒の吸気効率を高め，エンジン出力の向上に寄与し得る。 Thus, the air that flows into the intake inlet pipe 3 due to the intake action of the engine, as shown by the arrow D1 in FIGS. 4 and 6, is a smooth surface 6a of the intake guide wall 6 that continues to the inner surface of the intake inlet pipe 3. By being guided more smoothly, the center of the surge chamber 5 can be reached without pressure loss. Therefore, regardless of the distance between the intake inlet pipe 3 and the four parallel intake intake pipes 1, 1,..., The air is surged as shown by an arrow D2 in FIGS. The air is distributed substantially evenly from the central portion of the chamber 5 to the four intake distribution pipes 1, 1,..., So that the intake efficiency of each cylinder of the engine E can be increased and the engine output can be improved.
また図６及び図９及び図１０に示すように，吸気案内壁６の，吸気分配管１，１…側の他側面６ｂには，相互に間隔を置いて平行に並ぶ上下方向の複数のリブ７，７…を残して，複数の肉抜き凹部８，８…が形成される。吸気案内壁６の，吸気入口管３側の端部には，吸気案内壁６と直交するように延びる補強壁９が一体に連設される。 Further, as shown in FIGS. 6, 9, and 10, on the other side surface 6 b of the intake air guide wall 6 on the intake pipe 1, 1... A plurality of lightening recesses 8, 8... Are formed leaving 7, 7. A reinforcing wall 9 extending so as to be orthogonal to the intake guide wall 6 is integrally connected to an end of the intake guide wall 6 on the intake inlet pipe 3 side.
而して，複数の肉抜き凹部８，８…により吸気案内壁６の薄肉化が図られると共に，複数のリブ７，７…により吸気案内壁６剛性の強化を図ることができ，サージ室５での吸気圧力の脈動に起因する吸気案内壁６の振動騒音の発生を防ぐことができる。しかも吸気案内壁６の吸気分配管１，１…側の他側面６ｂは，空気流の誘導には殆ど関与しないから，その他側面６ｂに形成されたリブ７，７…及び肉抜き凹部８，８…は殆ど吸気抵抗とはならない。かくして，吸気案内壁６に良好な吸気案内機能を発揮させつゝ，吸気案内壁の薄肉化と剛性確保の両方を満足させることができる。 Thus, the intake guide wall 6 can be thinned by the plurality of thinned recesses 8, 8... And the rigidity of the intake guide wall 6 can be enhanced by the plurality of ribs 7, 7.. Generation of vibration noise of the intake guide wall 6 due to the pulsation of the intake pressure at this point can be prevented. In addition, the other side surface 6b of the intake guide wall 6 on the side of the intake pipes 1, 1,... Has little influence on the induction of air flow, so that the ribs 7, 7,. ... is hardly an intake resistance. Thus, it is possible to satisfy both the thinning of the intake guide wall and the securing of rigidity while the intake guide wall 6 exhibits a good intake guide function.
図４〜図９に示すように，吸気マニフォルドＭの内部には，さらに，サージ室５に連通路１２を介して連通するレゾネータ室１０が設けられる。このレゾネータ室１０は，前記４本の吸気分配管１，１…の相互間に画成される三つのレゾネータ小室１０ｂ〜１０ｄと，吸気分配管１，１…群の両外側部に形成される二つのレゾネータ小室１０ａ，１０ｅと，合計五つのレゾネータ小室１０ａ〜１０ｅを相互に連通すべく，吸気分配管１，１…の上面を横切るように延びるように配置される上下に偏平な連通室１１とよりなっており，この連通室１１の長手方向一端部が前記連通路１２を介してサージ室５の中央部に連通される。その際，レゾネータ小室１０ａ〜１０ｅは，その容積を極力大きく確保すべく，隣接する吸気分配管１，１…の下面より下方へ突出するようにして形成される。但し，望ましくは，レゾネータ小室１０ａ〜１０ｅの吸気分配管１，１…下面よりの突出は，サージ室１１の下面の高さより上方位置に止める。 As shown in FIGS. 4 to 9, a resonator chamber 10 that communicates with the surge chamber 5 via the communication path 12 is further provided inside the intake manifold M. The resonator chamber 10 is formed on the outer sides of the three resonator small chambers 10b to 10d defined between the four intake distribution pipes 1, 1... And the intake distribution pipes 1, 1. The upper and lower communication chambers 11 are arranged so as to extend across the upper surfaces of the intake pipes 1, 1... So that the two resonator chambers 10a and 10e and a total of five resonator chambers 10a to 10e communicate with each other. One end of the communication chamber 11 in the longitudinal direction is communicated with the central portion of the surge chamber 5 through the communication passage 12. At this time, the resonator chambers 10a to 10e are formed so as to protrude downward from the lower surfaces of the adjacent intake pipes 1, 1. However, desirably, the protrusions of the resonator small chambers 10 a to 10 e from the intake pipes 1, 1... From the lower surface are stopped at a position higher than the height of the lower surface of the surge chamber 11.
このように，レゾネータ室１０の主要部をなす複数のレゾネータ小室１０ａ〜１０ｅは，複数の吸気分配管１，１…の相互間のデッドスペースのみならず，吸気分配管１，１…群の両外側のデッドスペース及びそれらの下方のデッドスペースを利用して形成されるので，レゾネータ室１０に充分な容積を付与し得ると共に，レゾネータ室１０の吸気マニフォルドＭ下面への不必要な突出を防ぐことができ，レゾネータ室１０による吸気マニフォルドＭの大型化を防ぐことができる。また複数のレゾネータ小室１０ａ〜１０ｅの相互間を連通する連通室１１は，吸気分配管１，１…の上面を横切るように延びる上下に偏平な形状をなしているので，この連通室１１も吸気マニフォルドＭ上面からの突出を最小限に抑えながら，レゾネータ室１０の容積拡張に寄与すると共に，レゾネータ室１０による吸気マニフォルドＭの大型化を防ぎ，そのコンパクト化を図ることができる。また複数のレゾネータ小室１０ａ〜１０ｅの相互間を連通する連通室１１は，吸気分配管１，１…の上面を横切るように延びる上下に偏平な形状をなしているので，この連通室１１も吸気マニフォルドＭ上面からの突出を最小限に抑えながら，レゾネータ室１０の容積拡張に寄与すると共に，レゾネータ室１０による吸気マニフォルドＭの大型化を防ぎ，そのコンパクト化を図ることができる。こうして充分な容積を得たレゾネータ室１０は，エンジンＥの運転中，共鳴作用により，サージ室５に発生する吸気騒音の所定の周波数帯域での消音を可能にすると共に，エンジンのトルク増加に寄与する。しかも，上記のようにコンパクトに構成されたレゾネータ付き吸気マニフォルドＭは，自動車の狭小なエンジンルームＲ内上部に配置されても，エンジンＥやボンネットＢとの干渉を回避することができるので，小型自動車用に特に有効である。 As described above, the plurality of resonator small chambers 10a to 10e forming the main part of the resonator chamber 10 include not only the dead space between the plurality of intake distribution pipes 1, 1. Since the outer dead space and the dead space below the outer dead space are used, a sufficient volume can be given to the resonator chamber 10 and unnecessary protrusion of the resonator chamber 10 to the lower surface of the intake manifold M can be prevented. Therefore, the intake manifold M can be prevented from being enlarged by the resonator chamber 10. Further, the communication chamber 11 communicating between the plurality of resonator small chambers 10a to 10e has a vertically flat shape extending across the upper surface of the intake pipes 1, 1,... While minimizing the protrusion from the upper surface of the manifold M, it contributes to the expansion of the volume of the resonator chamber 10 and prevents the intake manifold M from being enlarged by the resonator chamber 10 and can be made compact. Further, the communication chamber 11 communicating between the plurality of resonator small chambers 10a to 10e has a vertically flat shape extending across the upper surface of the intake pipes 1, 1,... While minimizing the protrusion from the upper surface of the manifold M, it contributes to the expansion of the volume of the resonator chamber 10 and prevents the intake manifold M from being enlarged by the resonator chamber 10 and can be made compact. The resonator chamber 10 having a sufficient volume in this way enables the silence of the intake noise generated in the surge chamber 5 in a predetermined frequency band by the resonance action during the operation of the engine E, and contributes to an increase in engine torque. To do. Moreover, the intake manifold M with a resonator having a compact configuration as described above can avoid interference with the engine E and the bonnet B even if it is arranged in the upper part of the narrow engine room R of the automobile. It is particularly effective for automobiles.
同じく図４〜図９において，上記吸気マニフォルドＭは，それぞれ合成樹脂をもって個別に成形される下部の第１マニフォルド半体ＭＡと上部の第２マニフォルド半体ＭＢとで構成され，この両マニフォルド半体ＭＡ，ＭＢは，それらの互いに対向する接合面１５Ａ，１５Ｂを振動摩擦溶着することにより接合されるようになっている。 4 to 9, the intake manifold M is composed of a lower first manifold half MA and an upper second manifold half MB, which are individually molded with synthetic resin, and both manifold halves. MA and MB are joined together by vibration friction welding their joint surfaces 15A and 15B facing each other.
その第１マニフォルド半体ＭＡには，取り付けフランジ２と，吸気入口管３の一半部３Ａと，サージ室５の一半部５Ａと，吸気案内壁６の一半部６Ａと，吸気分配管１，１…群と，取り付けフランジ２と，レゾネータ小室１０ａ〜１０ｅ群と，連通路１２の一半部となる浅い第１凹溝１２Ａとが備えられる。一方，第２マニフォルド半体ＭＢには，吸気入口管３の他半部３Ｂと，サージ室５の他半部５Ｂと，吸気案内壁６の他半部６Ｂと，連通室１１と，連通路１２の他半部となる深い第２凹溝１２Ｂと，補強壁９の他半部９Ｂとが備えられる。 The first manifold half MA includes a mounting flange 2, a half part 3 A of the intake inlet pipe 3, a half part 5 A of the surge chamber 5, a half part 6 A of the intake guide wall 6, and the intake distribution pipes 1, 1. ... a group, a mounting flange 2, a group of resonator chambers 10a to 10e, and a shallow first concave groove 12A that is one half of the communication path 12 are provided. On the other hand, the second manifold half MB includes the other half 3B of the intake inlet pipe 3, the other half 5B of the surge chamber 5, the other half 6B of the intake guide wall 6, the communication chamber 11, and the communication passage. 12 is provided with a deep second concave groove 12B which is the other half of the twelve and the other half 9B of the reinforcing wall 9.
第１マニフォルド半体ＭＡの下面には，サージ室５，４本の吸気分配管１，１…及び中間の３つレゾネータ小室１０ｂ〜１０ｄに囲まれる３つの凹部１３ａ〜１３c が形成され，そのうちの吸気入口管３側で隣接する２つの凹部１３ａ，１３ｂの天井壁は，これら凹部１３ａ，１３ｂに隣接する２本の吸気分配管１，１の管壁に連続して平坦壁１６を構成し，この平坦壁１６に前記浅い凹溝１２Ａが形成される。 On the lower surface of the first manifold half MA, there are formed three recesses 13a-13c surrounded by the surge chamber 5, four intake distribution pipes 1, 1,... And the three intermediate resonator chambers 10b-10d. The ceiling walls of the two concave portions 13a and 13b adjacent on the intake inlet pipe 3 side constitute a flat wall 16 continuously to the pipe walls of the two intake pipes 1 and 1 adjacent to the concave portions 13a and 13b. The shallow groove 12A is formed in the flat wall 16.
吸気案内壁６の一半部６Ａは高さが低く形成され，同他半部６Ｂは高さが高く形成され，その他半部６Ｂに前記複数のリブ７，７…及び肉抜き凹部８，８…が設けられ，これら肉抜き凹部８，８…の下端は，該他半部６Ｂの下端面，即ち接合面１５Ｂの手前で終わっている（特に図９，図１０参照）。したがって，第１及び第２マニフォルド半体ＭＡ，ＭＢ相互の溶着と同時に吸気案内壁６の一半部６Ａ及び他半部６Ｂ相互の溶着を可能して，強固な吸気案内壁６を構成し得ると共に，これにより吸気マニフォルドＭの剛性強化を図ることができ，しかも吸気案内壁６の一半部６Ａ及び他半部６Ｂの溶着面積の，肉抜き凹部８，８…による減少を回避して，両半部６Ａ，６Ｂ相互の溶着強度を高めることができる。 One half 6A of the air intake guide wall 6 is formed with a low height, the other half 6B is formed with a high height, and the other half 6B has a plurality of ribs 7, 7,. The lower ends of the hollow recesses 8, 8... End before the lower end surface of the other half 6B, that is, the joining surface 15B (see particularly FIGS. 9 and 10). Therefore, the first and second manifold halves MA and MB can be welded together, and the one half 6A and the other half 6B of the intake guide wall 6 can be welded together to form a strong intake guide wall 6. Thus, the rigidity of the intake manifold M can be increased, and the welding area of the half portion 6A and the other half portion 6B of the intake guide wall 6 can be prevented from decreasing due to the hollow portions 8, 8,. The welding strength between the portions 6A and 6B can be increased.
第１及び第２マニフォルド半体ＭＡ，ＭＢの互いに対向する接合面１５Ａ，１５Ｂには，それぞれ吸気入口管３の一部と，サージ室５及びレゾネータ室１０全体を囲繞する無端状の第１溶着ビード２０Ａ，２０Ｂと，この第１溶着ビード２０Ａ，２０Ｂからレゾネータ室１０及び連通路１２の一側壁に沿って延びる有端の第２溶着ビード２１Ａ，２１Ｂと，第１溶着ビード２０Ａ，２０Ｂから連通路１２の他側壁に沿って延びる有端の第３溶着ビード２２Ａ，２２Ｂと，この第３溶着ビード２２Ａ，２２Ｂの，第１溶着ビード２０Ａ，２０Ｂとの近接部から補強壁９及び吸気案内壁６に沿って延びる有端の第４ビード部２３Ａ，２３Ｂとが形成される。 The first and second manifold halves MA and MB are opposed to each other on the joint surfaces 15A and 15B, respectively, and endless first welds that surround a part of the intake inlet pipe 3 and the surge chamber 5 and the resonator chamber 10 as a whole. The beads 20A, 20B, the second weld beads 21A, 21B with ends extending along the side walls of the resonator chamber 10 and the communication passage 12 from the first weld beads 20A, 20B , and the first weld beads 20A, 20B. The reinforcing wall 9 and the intake guide wall from the proximity of the third weld beads 22A and 22B with ends and the first weld beads 20A and 20B extending along the other side wall of the passage 12 and the third weld beads 22A and 22B. 6 is formed with the end-ended fourth beads 23A and 23B extending along the line 6.
また第２マニフォルド半体ＭＢの接合面１５Ｂには，第１〜第４溶着ビード２０Ｂ〜２３Ｂの幅方向両側に溝２４，２４を挟んで起立する一対の規制壁２５，２５（図７参照）が形成される。 Further, on the joint surface 15B of the second manifold half MB, a pair of restricting walls 25, 25 standing between the grooves 24, 24 on both sides in the width direction of the first to fourth welding beads 20B-23B (see FIG. 7). Is formed.
図４及び図５において，第１及び第２マニフォルド半体ＭＡ，ＭＢの第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂの端部２１Ａｅ〜２３Ａｅ；２１Ｂｅ〜２３Ｂｅの横幅は，他の主要部の横幅より広く設定される。 4 and 5, the lateral widths of the end portions 21Ae to 23Ae; 21Be to 23Be of the second to fourth weld beads 21A to 23A; 21B to 23B of the first and second manifold halves MA and MB are the other main widths. It is set wider than the width of the part.
また第１マニフォルド半体ＭＡの前記３つの凹部１３ａ〜１３ｃのうち，前記平坦壁１６の形成に関わらない一つの凹部１３ａの天井壁１６の上面は，第１マニフォルド半体ＭＡ側の接合面に連続しており，この凹部１３ａの天井壁１６の上面に，有端の第２溶着ビード２１Ａの中間部と協働して閉じたロ字状の溶着ビードを構成する補強溶着ビード２７Ａが形成される。これに対応して，第２マニフォルド半体ＭＢの接合面１５Ｂにも補強溶着ビード２７Ｂが形成されると共に，これを囲むように前記規制壁の２５の一部が延長される。 Of the three recesses 13a to 13c of the first manifold half MA, the upper surface of the ceiling wall 16 of one recess 13a that is not related to the formation of the flat wall 16 is a joint surface on the first manifold half MA side. A reinforcing welding bead 27A is formed on the upper surface of the ceiling wall 16 of the recess 13a, and forms a closed-letter-shaped welding bead in cooperation with the intermediate portion of the end-attached second welding bead 21A. The Correspondingly, a reinforcing weld bead 27B is also formed on the joint surface 15B of the second manifold half MB, and a part of the restriction wall 25 is extended so as to surround it.
図８及び図１１に示すように，第１及び第２マニフォルド半体ＭＡ，ＭＢの接合面１５Ａ，１５Ｂの溶着に当たっては，第１マニフォルド半体ＭＡを，その接合面１５Ａを上向きにして支持台３０上に載置し，その接合面１５Ａの溶着ビード２０Ａ〜２２Ａ，２７Ａに，第２マニフォルド半体ＭＢの接合面１５Ｂの溶着ビード２０Ｂ〜２２Ｂ，２７Ｂを重ね合わせ，この第２マニフォルド半体ＭＢを上方から押させる押え振動治具３１を，吸気マニフォルドＭの長手方向に沿って振動させる。 As shown in FIGS. 8 and 11, when welding the joint surfaces 15A and 15B of the first and second manifold halves MA and MB, the first manifold half MA is placed with the joint surface 15A facing upward and the support base. 30 and the welding beads 20A to 22A and 27A on the joining surface 15A are overlapped with the welding beads 20B to 22B and 27B on the joining surface 15B of the second manifold half MB, and this second manifold half MB. The presser vibration jig 31 that presses from above is vibrated along the longitudinal direction of the intake manifold M.
その際，支持台３０は，第１マニフォルド半体ＭＡの下面周囲を支承する通常のバックアップ部を備える他に，特に，略中央部に３つのバックアップ凸部３０ａ〜３０ｃを備えており，これらバックアップ凸部３０ａ〜３０ｃは，第１マニフォルド半体ＭＡ下面の，サージ室５，４本の吸気分配管１，１…及び中間の３つレゾネータ小室１０ｂ〜１０ｄに囲まれて形成された前記３つの凹部１３ａ〜１３ｃに嵌合して，それらの天井面に当接するようになっている。したがって，押え振動治具３１により第２マニフォルド半体ＭＢを上方から押さえて振動させたとき，第１及び第２マニフォルド半体ＭＡ，ＭＢの中央部の撓みを支持台３０のバックアップ凸部３０ａ〜３０ｃにより防ぐことができるため，吸気マニフォルドＭ周囲の第１溶着ビード２０Ａ，２０Ｂ相互間は勿論，中程の第２〜第４溶着ビード２１Ａ〜２２Ａ；２１Ｂ〜２２Ｂ相互間に均等に摩擦熱を発生させて，両者間を確実に溶着することができる。その溶着代は，第２マニフォルド半体ＭＢの規制壁２５が第１マニフォルド半体ＭＡの接合面１５Ａに当接することにより規制され，またその溶着に伴ない発生するバリは，規制壁２５と各溶着ビード間の溝２４に収容される。 At that time, the support base 30 is provided with a normal backup portion for supporting the lower periphery of the first manifold half MA, and in particular with three backup convex portions 30a to 30c at the substantially central portion. The convex portions 30a to 30c are formed on the lower surface of the first manifold half MA and surrounded by the surge chamber 5, four intake distribution pipes 1, 1,... And the three intermediate resonator chambers 10b to 10d. It fits into the recesses 13a to 13c and comes into contact with their ceiling surfaces. Therefore, when the second manifold half MB is vibrated while being pressed from above by the presser vibration jig 31, the central protrusions of the first and second manifold halves MA and MB are deformed by the backup convex portions 30a to 30a of the support base 30. 30c can prevent the frictional heat evenly between the first welding beads 20A and 20B around the intake manifold M and between the second to fourth welding beads 21A to 22A and 21B to 22B. It can be generated and reliably welded between the two. The welding allowance is regulated by the restriction wall 25 of the second manifold half MB contacting the contact surface 15A of the first manifold half MA, and the burrs generated by the welding are separated from the regulation wall 25 and each It is accommodated in the groove 24 between the weld beads.
このように，第１マニフォルド半体ＭＡ下面の，サージ室５，４本の吸気分配管１，１…及び中間の３つレゾネータ小室１０ｂ〜１０ｄに囲まれて形成された３つの凹部１３ａ〜１３ｃを，支持台３０のバックアップ凸部３０ａ〜３０ｃの嵌合用凹部に利用するので，第１マニフォルド半体ＭＡの中央部に，バックアップ凸部３０ａ〜３０ｃの嵌合のための専用の凹部を形成する必要がなく，したがって第１マニフォルド半体ＭＡの本来の構造及び形状を変更することなく，支持台３０による第１マニフォルド半体ＭＡの略中央部の支承を強固に行うことができて，両マニフォルド半体ＭＡ，ＭＢ間に良好な溶着部を形成することができる。図示例の場合，特に，バックアップ凸部３０ａ〜３０ｃが嵌合する凹部１３ａ〜１３ｃは，第１マニフォルド半体ＭＡの第２及び第３溶着ビード２１Ａ，２２Ａの略直下に位置することになるから，その第２及び第３溶着ビード２１Ａ，２２Ａ周辺部の撓みを強固に抑え，上下の第２及び第３溶着ビード２１Ａ，２２Ａ〜２１Ｂ，２２Ｂ相互の溶着を，より確実に行うことができる。 As described above, the three recesses 13a to 13c formed on the lower surface of the first manifold half MA and surrounded by the surge chamber 5, the four intake distribution pipes 1, 1,... And the intermediate three resonator chambers 10b to 10d. Is used as a fitting recess for the backup projections 30a to 30c of the support base 30, so that a dedicated recess for fitting the backup projections 30a to 30c is formed in the center of the first manifold half MA. Therefore, without supporting the original structure and shape of the first manifold half MA, it is possible to firmly support the first central half MA of the first manifold half MA by the support base 30, and both the manifolds can be supported. A good welded portion can be formed between the half bodies MA and MB. In the case of the illustrated example, in particular, the concave portions 13a to 13c into which the backup convex portions 30a to 30c are fitted are positioned substantially immediately below the second and third weld beads 21A and 22A of the first manifold half MA. , the second and third weld bead 2 1A, suppress strongly the deflection of 22A periphery, the upper and lower second and third weld bead 21A, 22A～21B, welding of 22B mutually be performed more reliably it can.
また第１及び第２マニフォルド半体ＭＡ，ＭＢの第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂにおいて，それらの端部２１Ａｅ〜２３Ａｅ；２１Ｂｅ〜２３Ｂｅの横幅は，他の主要部の横幅より広く設定されるので，第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂの各端部２１Ａｅ〜２３Ａｅ；２１Ｂｅ〜２３Ｂｅでは，溶着面積が拡張して，その溶着強度を高めることができる。 Further, in the second to fourth weld beads 21A to 23A; 21B to 23B of the first and second manifold halves MA and MB, the lateral widths of the end portions 21Ae to 23Ae; 21Be to 23Be are the same as those of other main parts. Since the width is set wider than the lateral width, the end areas 21Ae to 23Ae and 21Be to 23Be of the second to fourth welding beads 21A to 23A; 21B to 23B can be expanded to increase their welding strength. .
而して，吸気マニフォルドＭの使用状態では，エンジンＥの振動等により，特に，有端の第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂの各端部の溶着部に集中応力が発生する傾向があるが，その集中応力による，第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂの各端部の溶着部の剥離を確実に防ぐことができる。 Thus, when the intake manifold M is in use, concentrated stress is generated at the welded portions of the end portions of the second to fourth welded beads 21A to 23A; However, it is possible to reliably prevent peeling of the welded portions at the respective end portions of the second to fourth weld beads 21A to 23A; 21B to 23B due to the concentrated stress.
さらに，有端の第２〜第４溶着ビード２１Ａ〜２３Ａ；２１Ｂ〜２３Ｂのうち，最も長い第２溶着ビード２１Ａ，２１Ｂの中間部には，第２溶着ビード２１Ａ，２１Ｂと協働して閉じたロ字状の溶着ビードを構成する補強溶着ビード２７Ａ，２７Ｂが連設されるので，補強溶着ビード２７Ａ，２７Ｂ相互の溶着により，第２溶着ビード２１Ａ，２１Ｂの中間部相互の溶着強度が増強されることになり，第２溶着ビード２１Ａ，２１Ｂの中間部の溶着部の，振動による剥離をも確実に防ぐことができる。 Further, among the second to fourth weld beads 21A to 23A; 21B to 23B having ends, the middle part of the longest second weld beads 21A and 21B is closed in cooperation with the second weld beads 21A and 21B. Since the reinforcing weld beads 27A and 27B constituting the square-shaped weld bead are connected in series, the weld strength between the intermediate portions of the second weld beads 21A and 21B is enhanced by the mutual welding of the reinforcing weld beads 27A and 27B. As a result, it is possible to reliably prevent peeling of the welded portion between the second welded beads 21A and 21B due to vibration.
しかも，第１マニフォルド半体ＭＡ側の補強溶着ビード２７Ａは，一部のバックアップ凸部３０ｃが嵌合する凹部１３ｃの天井壁１４を利用して，その上面に形成されるので，バックアップ凸部３０ｃが嵌合する凹部１３ｃは，補強溶着ビード２７Ａの略直下に位置することになるから，その補強溶着ビード２７Ａ周りの撓みを強固に抑え，上下の補強溶着ビード２７Ａ，２７Ｂ相互の溶着を，より確実に行うことができる。 In addition, the reinforcing weld bead 27A on the first manifold half MA side is formed on the upper surface of the ceiling wall 14 of the recess 13c into which a part of the backup protrusion 30c is fitted, so the backup protrusion 30c. Since the concave portion 13c into which the butt is fitted is positioned substantially immediately below the reinforcing weld bead 27A, the bending around the reinforced weld bead 27A is strongly suppressed, and the mutual welding between the upper and lower reinforcing weld beads 27A and 27B is further improved. It can be done reliably.
図５及び図１２に示すように，第２マニフォルド半体ＭＢには，サージ室５の，吸気入口管３から離れた角部に，吸気入口管３から離れた最外側の吸気分配管１への空気の流れをスムーズに誘導する断面円弧状の案内壁３３が設けられる。 As shown in FIGS. 5 and 12, the second manifold half MB has a surge chamber 5 at the corner away from the intake inlet pipe 3 to the outermost intake distribution pipe 1 away from the intake inlet pipe 3. A guide wall 33 having an arcuate cross section for smoothly guiding the air flow is provided.
本発明は上記実施形態に限定されるものではなく，その要旨を逸脱しない範囲で種々の設計変更が可能である。例えば，本発明は，上記４気筒以外の多気筒エンジン用にも適用することができる。また吸気案内壁６の一半部６Ａ及び他半部６Ｂを略同じ高さに形成して，その両者の他側面６ｂにリブ７及び肉抜き凹部８を形成することもできる。 The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the invention. For example, the present invention can be applied to a multi-cylinder engine other than the above-described four cylinders. Further, the half portion 6A and the other half portion 6B of the intake guide wall 6 can be formed to have substantially the same height, and the rib 7 and the thinned recess portion 8 can be formed on the other side surface 6b of both.
Ｍ・・・・・吸気マニフォルド
ＭＡ・・・・第１マニフォルド半体
ＭＢ・・・・第２マニフォルド半体
１・・・・・吸気分配管
３・・・・・吸気入口管
５・・・・・サージ室
５Ａ・・・・サージ室の一半部
５Ｂ・・・・サージ室の他半部
１０・・・・レゾネータ室
１０ｂ〜１０ｄ・・・レゾネータ小室
１２・・・・連通路
１２Ａ・・・第１凹溝
１２Ｂ・・・第２凹溝
１３ａ〜１３ｃ・・・凹部
１５Ａ・・・第１マニフォルド半体側の接合面
１５Ｂ・・・第２マニフォルド半体側の接合面
２１Ａ・・・下部溶着ビード（第１マニフォルド半体側の第２溶着ビード）
２１Ｂ・・・上部溶着ビード（第２マニフォルド半体側の第２溶着ビード）
２７Ａ・・・下部補強溶着ビード
２７Ｂ・・・上部補強溶着ビード
３０・・・・支持台
３０ａ〜３０ｃ・・・バックアップ凸部
M ... Intake manifold MA ... First manifold half MB ... Second manifold half 1 ... Intake distribution pipe 3 ... Intake inlet pipe 5 ... ··· Surge chamber 5A ··· One half of surge chamber 5B ··· Other half of surge chamber 10 ··· Resonator chambers 10b to 10d ··· Resonator small chamber 12 ··· Communication path 12A ··· First concave groove 12B ... second concave grooves 13a to 13c ... concave portion 15A ... first manifold half-body-side joining surface 15B ... second manifold half-body-side joining surface 21A ... lower weld Bead (second weld bead on the first manifold half)
21B ... Upper weld bead (second weld bead on the second manifold half)
27A ... Lower reinforcement weld bead 27B ... Upper reinforcement weld bead 30 ... Support bases 30a-30c ... Backup convex part
Claims (3)
隣り合う吸気分配管（１）の間に，前記レゾネータ室（１０）の一部となるレゾネータ小室（１０ｂ〜１０ｄ）を形成したことを特徴とするエンジン用吸気マニフォルド。 A plurality of intake pipes (1) arranged in parallel in a substantially horizontal posture are provided on one side wall, an intake inlet pipe (3) is provided on the other wall, and an intake inlet pipe (3) and an intake pipe (1) are provided inside. An intake manifold for an engine comprising a surge chamber (5) communicating with each other and a resonator chamber (10) communicating with the surge chamber (5) via a communication passage (12),
An intake manifold for an engine , wherein a resonator small chamber (10b to 10d), which is a part of the resonator chamber (10), is formed between adjacent intake pipes (1) .
複数の吸気分配管（１），サージ室（５）の一半部（５Ａ），レゾネータ小室（１０ｂ〜１０ｄ），及び連通路（１２）の一半部となる第１凹溝（１２Ａ）を有する合成樹脂製の第１マニフォルド半体（ＭＡ）と，サージ室（５）の他半部（５Ｂ），及び連通路（１２）の他半部となる第２凹溝（１２Ｂ）を有する合成樹脂製の第２マニフォルド半体（ＭＢ）との相対向する接合面（１５Ａ，１５Ｂ）を相互に溶着してなり，第１マニフォルド半体（ＭＡ）の下面には，サージ室（５），複数の吸気分配管（１）及びレゾネータ小室（１０ｂ〜１０ｄ）に囲まれる凹部（１３ａ〜１３c ）を形成し，この凹部（１３ａ〜１３c ）を，第１及び第２マニフォルド半体（ＭＡ，ＭＢ）相互の溶着時，第１マニフォルド半体（ＭＡ）を支持する支持台（３０）のバックアップ凸部（３０ａ）の嵌合用としたことを特徴とするエンジン用吸気マニフォルド。 The engine intake manifold of claim 1,
A composite having a plurality of intake pipes (1), a half (5A) of the surge chamber (5), a resonator small chamber (10b to 10d), and a first groove (12A) serving as a half of the communication passage (12) Made of synthetic resin having a first manifold half (MA) made of resin, the other half (5B) of the surge chamber (5), and a second groove (12B) serving as the other half of the communication passage (12) The joint surfaces (15A, 15B) facing each other with the second manifold half (MB) are welded to each other, and the lower surface of the first manifold half (MA) has a surge chamber (5), a plurality of A recess (13a-13c) surrounded by the intake pipe (1) and the resonator chamber (10b-10d) is formed, and the recess (13a-13c) is formed between the first and second manifold halves (MA, MB). Support base for supporting the first manifold half (MA) during welding An intake manifold for an engine, characterized in that it is used for fitting the backup projection (30a) of (30) .
第１及び第２マニフォルド半体（ＭＡ，ＭＢ）の両接合面（１５Ａ，１５Ｂ）には，サージ室（５）及びレゾネータ室（１０）間を区画するように相互に溶着される下部溶着ビード（２１Ａ）及び上部溶着ビード（２１Ｂ）をそれぞれ形成し，また前記凹部（１３ａ〜１３c ）の天井壁（１４）に，前記下部溶着ビード（２１Ａ）に連続する下部補強溶着ビード（２７Ａ）を形成すると共に，前記上部溶着ビード（２１Ｂ）に連続して前記下部補強溶着ビード（２７Ａ）と溶着される上部補強溶着ビード（２７Ｂ）を第２マニフォルド半体（ＭＢ）に形成したことを特徴とするエンジン用吸気マニフォルド。 An intake manifold for an engine according to claim 2,
Lower welding beads welded to each other so as to partition the surge chamber (5) and the resonator chamber (10) on both joint surfaces (15A, 15B) of the first and second manifold halves (MA, MB). (21A) and an upper weld bead (21B) are formed, respectively, and a lower reinforcing weld bead (27A) continuous with the lower weld bead (21A) is formed on the ceiling wall (14) of the recesses (13a to 13c). In addition, an upper reinforcing weld bead (27B) to be welded to the lower reinforcing weld bead (27A) is formed in the second manifold half (MB) continuously to the upper weld bead (21B). Intake manifold for engines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011199462A JP5243586B2 (en) | 2011-09-13 | 2011-09-13 | Engine intake manifold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011199462A JP5243586B2 (en) | 2011-09-13 | 2011-09-13 | Engine intake manifold |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007262248A Division JP4828500B2 (en) | 2007-10-05 | 2007-10-05 | Engine intake manifold |
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| Publication Number | Publication Date |
|---|---|
| JP2011247274A JP2011247274A (en) | 2011-12-08 |
| JP2011247274A5 true JP2011247274A5 (en) | 2012-07-19 |
| JP5243586B2 JP5243586B2 (en) | 2013-07-24 |
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| JP6142477B2 (en) | 2012-07-31 | 2017-06-07 | アイシン精機株式会社 | Intake manifold |
| JP6656973B2 (en) * | 2016-03-24 | 2020-03-04 | トヨタ紡織株式会社 | Intake manifold |
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| JPS5949361A (en) * | 1982-09-14 | 1984-03-21 | Nippon Denso Co Ltd | Air-intake silencer in internal-combustion engine |
| DE4216255A1 (en) * | 1992-05-16 | 1993-11-18 | Mann & Hummel Filter | Intake pipe and process for its manufacture |
| JPH10205401A (en) * | 1997-01-21 | 1998-08-04 | Toyota Motor Corp | Intake manifold with resonator |
| JP2003328883A (en) * | 2002-05-09 | 2003-11-19 | Mitsubishi Electric Corp | Intake device with resonator |
| JP4960775B2 (en) * | 2007-06-28 | 2012-06-27 | 株式会社マーレ フィルターシステムズ | Intake manifold for internal combustion engine |
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