JP6257234B2 - Intake manifold - Google Patents

Intake manifold Download PDF

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JP6257234B2
JP6257234B2 JP2013191556A JP2013191556A JP6257234B2 JP 6257234 B2 JP6257234 B2 JP 6257234B2 JP 2013191556 A JP2013191556 A JP 2013191556A JP 2013191556 A JP2013191556 A JP 2013191556A JP 6257234 B2 JP6257234 B2 JP 6257234B2
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extinguishing device
intake manifold
flame extinguishing
flame
fixing member
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JP2015059431A (en
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矢野 健二
健二 矢野
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Roki Co Ltd
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Roki Co Ltd
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本発明は、内燃機関に外気を導入するために搭載される合成樹脂製のインテークマニホールドに関する。   The present invention relates to an intake manifold made of a synthetic resin that is mounted to introduce outside air into an internal combustion engine.

従来より、内燃機関に外気を導入するインテークマニホールドにおいて、内燃機関からのバックファイヤーを防ぐために内部に消炎装置を組み付けたインテークマニホールドが知られている。   2. Description of the Related Art Conventionally, an intake manifold that introduces outside air into an internal combustion engine has been known in which a flame extinguishing device is assembled in order to prevent backfire from the internal combustion engine.

このような消炎装置は、種々の方法で組み付けられるが、例えば、外気を導入する吸気口に取り付けられることが知られている。   Such a flame extinguishing device is assembled by various methods, and for example, it is known that the flame extinguishing device is attached to an intake port for introducing outside air.

特開2006−46069号公報JP 2006-46069 A

特許文献1に記載されたインテークマニホールドは、本体を水平面を含む分割面で複数に分割して少なくともベース部材とカバー部材とで構成し、ベース部材の嵌合凹部に、その開口部から消炎装置を組み込み、これをカバー部材に形成したリング状の押圧部で消炎装置を挟持して固定するという構成を備えている。   The intake manifold described in Patent Document 1 is configured by dividing a main body into a plurality of division surfaces including a horizontal surface and including at least a base member and a cover member, and a flame extinguishing device is inserted into the fitting recess of the base member from its opening. The flame extinguishing device is sandwiched and fixed by a ring-shaped pressing portion formed on the cover member.

このように、特許文献1に記載された消炎装置の組み付け構造を備えたインテークマニホールドによれば、消炎装置の組み付け性を高めるとともに、小型化および軽量化を図ることができる。   Thus, according to the intake manifold provided with the assembly structure of the flame extinguishing device described in Patent Document 1, it is possible to improve the assembly property of the flame extinguishing device and to reduce the size and weight.

しかし、特許文献1に記載された消炎装置の組み付け構造によれば、消炎装置をベース部材とカバー部材とで挟持しており、詳述すると、カバー部材に形成したリング状の押圧部によって消炎装置を軸方向に押さえているので、消炎部材の径方向にガタツキが生じ、内燃機関の駆動に伴う振動などの影響によって、異音や異物が生じる可能性があった。   However, according to the assembly structure of the flame extinguishing apparatus described in Patent Document 1, the flame extinguishing apparatus is sandwiched between the base member and the cover member. Specifically, the flame extinguishing apparatus is formed by a ring-shaped pressing portion formed on the cover member. Is held in the axial direction, there is a backlash in the radial direction of the flame-extinguishing member, and there is a possibility that abnormal noise or foreign matter may be generated due to the influence of vibration or the like accompanying driving of the internal combustion engine.

そこで、本発明は上記問題に鑑みてなされたものであり、簡単な構成で確実に消炎装置を固定することができる消炎装置の組み付け構造を備えたインテークマニホールドを提供することを目的とする。   Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide an intake manifold having an assembly structure of a flame extinguishing device that can reliably fix the flame extinguishing device with a simple configuration.

本発明に係るインテークマニホールドは、消炎装置が組み付けられた吸気口と複数の分岐管路とが形成されたチャンバ室を有するインテークマニホールドであって、前記インテークマニホールドは、長手方向に沿った分割面で複数に分割されて少なくともベース部材とカバー部材とから構成され、前記消炎装置は、前記吸気口に溶着される消炎装置固定部材と前記ベース部材によって挟持され、前記消炎装置固定部材は、前記消炎装置の外周を径方向に押圧する押圧部を備え、前記ベース部材は、前記吸気口近傍に突起が形成され、前記消炎装置固定部材は、前記押圧部から延設する鍔部を備え、該鍔部に前記突起に嵌合可能な凹部を備えることを特徴とする。 An intake manifold according to the present invention is an intake manifold having a chamber chamber in which an air inlet into which a flame extinguishing device is assembled and a plurality of branch pipes are formed, and the intake manifold is a dividing surface along a longitudinal direction. is divided into a plurality consists of at least the base member and the cover member, wherein the flame arrestor is sandwiched by the base member and the flame arrestor fixing member is welded to the intake port, the flame arrestor fixing member, the flame arrestor The base member is provided with a protrusion in the vicinity of the air inlet, and the flame-extinguishing device fixing member includes a flange extending from the pressing portion. the projection includes a fittable recesses and said Rukoto to.

また、本発明に係るインテークマニホールドにおいて、前記ベース部材、前記カバー部材及び前記消炎装置固定部材は、これらの3部材を同時に溶着すると好適である。   In the intake manifold according to the present invention, it is preferable that the base member, the cover member, and the flame extinguishing device fixing member are welded at the same time.

また、本発明に係るインテークマニホールドにおいて、前記消炎装置固定部材は、前記消炎装置の軸方向の外周縁部と当接するフランジ部を備えると好適である。   In the intake manifold according to the present invention, it is preferable that the flame extinguishing device fixing member includes a flange portion that contacts an outer peripheral edge portion in the axial direction of the flame extinguishing device.

上記発明の概要は、本発明の必要な特徴の全てを列挙したものではなく、これらの特徴群のサブコンビネーションもまた発明となり得る。   The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these features can also be the invention.

本発明に係るインテークマニホールドは、消炎装置が、ベース部材と消炎装置固定部材とによって挟持されているので、消炎装置を確実にインテークマニホールドに固定することができる。   In the intake manifold according to the present invention, since the flame extinguishing device is sandwiched between the base member and the flame extinguishing device fixing member, the flame extinguishing device can be reliably fixed to the intake manifold.

また、本発明に係るインテークマニホールドは、消炎装置を押圧部によって径方向に固定しているので、確実に消炎装置をインテークマニホールドに固定することができる。   Moreover, since the intake manifold which concerns on this invention has fixed the flame-extinguishing apparatus to the radial direction with the press part, it can fix a flame-extinguishing apparatus to an intake manifold reliably.

また、本発明に係るインテークマニホールドは、消炎装置固定部材を、ベース部材に形成した突起に組み付けて固定しているので、溶着の際に位置決めを確実に行うことができる。   Moreover, since the intake manifold according to the present invention has the flame-extinguishing device fixing member assembled and fixed to the protrusion formed on the base member, positioning can be reliably performed during welding.

また、本発明に係るインテークマニホールドは、ベース部材、カバー部材及び消炎装置固定部材の3部材を同時に溶着するので、消炎装置固定部材の溶着に伴う溶着工数の増加を抑えることができる。   In addition, since the intake manifold according to the present invention simultaneously welds the base member, the cover member, and the flame extinguishing device fixing member, it is possible to suppress an increase in the number of welding steps accompanying the welding of the flame extinguishing device fixing member.

また、本発明に係るインテークマニホールドは、消炎装置固定部材が消炎装置の軸方向の外周縁部と当接するフランジ部を備えているので、消炎装置固定部材の溶着の際の位置決めを行うと共に、溶着後に消炎装置の軸方向のガタツキを抑えることができる。   In addition, the intake manifold according to the present invention includes a flange portion in which the flame extinguishing device fixing member comes into contact with the outer peripheral edge portion in the axial direction of the flame extinguishing device, so that the flame extinguishing device fixing member is positioned and welded. Later, the axial play of the flame extinguishing device can be suppressed.

本実施形態に係るインテークマニホールドの構成を説明するための斜視図。The perspective view for demonstrating the structure of the intake manifold which concerns on this embodiment. 本実施形態に係るインテークマニホールドの分解図。The exploded view of the intake manifold concerning this embodiment. 本実施形態に係るインテークマニホールドの消炎装置の取り付け構造を説明するための分解図。The exploded view for demonstrating the attachment structure of the flame-extinguishing apparatus of the intake manifold which concerns on this embodiment. 図1におけるA−A断面図。AA sectional drawing in FIG. 図1におけるB−B断面図。BB sectional drawing in FIG.

以下、本発明を実施するための好適な実施形態について、図面を用いて説明する。なお、以下の実施形態は、各請求項に係る発明を限定するものではなく、また、実施形態の中で説明されている特徴の組み合わせの全てが発明の解決手段に必須であるとは限らない。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

図1は、本実施形態に係るインテークマニホールドの構成を説明するための斜視図であり、図2は、本実施形態に係るインテークマニホールドの分解図であり、図3は、本実施形態に係るインテークマニホールドの消炎装置の取り付け構造を説明するための分解図であり、図4は、図1におけるA−A断面図であり、図5は、図1におけるB−B断面図である。   FIG. 1 is a perspective view for explaining a configuration of an intake manifold according to the present embodiment, FIG. 2 is an exploded view of the intake manifold according to the present embodiment, and FIG. 3 is an intake according to the present embodiment. FIG. 4 is an exploded view for explaining a mounting structure of a flame extinguishing device for a manifold, FIG. 4 is a sectional view taken along line AA in FIG. 1, and FIG. 5 is a sectional view taken along line BB in FIG.

図1及び2に示すように、本実施形態に係るインテークマニホールド1は、エアクリーナ及びスロットルボディを介して濾過された外気を導入する吸気口11と、内燃機関のシリンダヘッドに取り付けられ、図示しない燃料噴射弁が各々に組み付けられる複数の分岐通路12とが形成され、吸気口11及び分岐通路12が連続するチャンバ室13を備えている。   As shown in FIGS. 1 and 2, the intake manifold 1 according to the present embodiment is attached to an intake port 11 for introducing outside air filtered through an air cleaner and a throttle body, and a cylinder head of an internal combustion engine. A plurality of branch passages 12 into which the injection valves are respectively assembled are formed, and a chamber chamber 13 in which the intake port 11 and the branch passage 12 are continuous is provided.

インテークマニホールド1は、チャンバ室13の長手方向に沿った分割面でベース部材10とカバー部材20とに分割されており、ベース部材10に形成されたチャンバ室13の開口をカバー部材20で閉塞することで中空形状に形成されている。   The intake manifold 1 is divided into a base member 10 and a cover member 20 at a dividing surface along the longitudinal direction of the chamber chamber 13, and the opening of the chamber chamber 13 formed in the base member 10 is closed with the cover member 20. Thus, it is formed in a hollow shape.

また、本実施形態に係るインテークマニホールド1は、吸気口11に消炎装置固定部材30によって消炎装置2が組み付けられている。消炎装置2は、概略円筒状の部材であり、波板状に形成された金属箔を巻きつけてハニカム状に形成されている。なお、ベース部材10、カバー部材20及び消炎装置固定部材30は、合成樹脂によって形成されており、具体的には、夫々ポリプロピレン系樹脂やポリアミド系樹脂等の熱可塑性の合成樹脂が好適に用いられる。   Further, in the intake manifold 1 according to the present embodiment, the flame extinguishing device 2 is assembled to the intake port 11 by the flame extinguishing device fixing member 30. The flame extinguishing apparatus 2 is a substantially cylindrical member, and is formed in a honeycomb shape by winding a metal foil formed in a corrugated plate shape. The base member 10, the cover member 20, and the flame extinguishing device fixing member 30 are made of synthetic resin. Specifically, thermoplastic synthetic resins such as polypropylene resins and polyamide resins are preferably used. .

このように、本実施形態に係るインテークマニホールド1は、消炎装置2が組み付けられているので、内燃機関のシリンダ燃焼室からのバックファイヤーを消炎してこれを防ぐことができる。   As described above, the intake manifold 1 according to the present embodiment is assembled with the flame extinguishing device 2, so that the backfire from the cylinder combustion chamber of the internal combustion engine can be extinguished to prevent this.

次に、本実施形態に係るインテークマニホールド1の消炎装置2の組付け構造について説明を行う。   Next, the assembly structure of the flame extinguishing device 2 of the intake manifold 1 according to this embodiment will be described.

図2に示すように、消炎装置2は、ベース部材10に載置された後、消炎装置固定部材30によって固定されている。詳述すると、図3に示すように、ベース部材10の吸気口11の近傍には、消炎装置2が載置される載置部16が形成されており、該載置部16に消炎装置2を仮組することができるようになっている。   As shown in FIG. 2, the flame extinguishing device 2 is fixed on the flame extinguishing device fixing member 30 after being placed on the base member 10. More specifically, as shown in FIG. 3, a mounting portion 16 on which the flame extinguishing device 2 is placed is formed in the vicinity of the air inlet 11 of the base member 10, and the flame extinguishing device 2 is placed on the mounting portion 16. Can be temporarily assembled.

載置部16は、ベース部材10に消炎装置2の外形形状に沿った溝状に形成されている。また、載置部16には、消炎装置2の端縁と当接する端縁押え部17が形成されており、消炎装置2の軸方向(吸気口11から吸気方向に沿った方向)に固定されている。   The mounting portion 16 is formed in a groove shape along the outer shape of the flame extinguishing device 2 in the base member 10. Further, the mounting portion 16 is formed with an edge pressing portion 17 that contacts the edge of the flame extinguishing device 2, and is fixed in the axial direction of the flame extinguishing device 2 (direction along the intake direction from the air inlet 11). ing.

さらに、ベース部材10には、載置部16の周方向の両端部に径方向に延設する溶着面15が形成されており、該溶着面15には、突起14が立設している。   Furthermore, the base member 10 is formed with welding surfaces 15 extending in the radial direction at both ends in the circumferential direction of the mounting portion 16, and protrusions 14 are erected on the welding surface 15.

消炎装置固定部材30は、消炎装置2の外周を径方向に押圧するように消炎装置2の外形形状に沿った円弧状に形成された押圧部31と、押圧部31の両端縁から延設する鍔部32を備えている。   The flame extinguishing device fixing member 30 extends from the pressing portion 31 formed in an arc shape along the outer shape of the flame extinguishing device 2 so as to press the outer periphery of the flame extinguishing device 2 in the radial direction, and from both end edges of the pressing portion 31. A collar 32 is provided.

押圧部31には、図5に示すように消炎装置2の軸方向の外周縁部と当接するフランジ部35が径方向に突出して形成されている。   As shown in FIG. 5, the pressing portion 31 is formed with a flange portion 35 that is in contact with the outer peripheral edge portion in the axial direction of the flame extinguishing device 2 so as to protrude in the radial direction.

鍔部32には、上述した突起14が嵌合可能な凹部33が形成されており、鍔部32の外周縁には、溶着面34が形成されている。   A recess 33 into which the above-described protrusion 14 can be fitted is formed in the flange portion 32, and a welding surface 34 is formed on the outer peripheral edge of the flange portion 32.

このように、図4及び5に示すように、本実施形態に係るインテークマニホールド1の消炎装置2は、ベース部材10に消炎装置2を組み付け、消炎装置固定部材30とベース部材10によって挟持されて固定されている。また、チャンバ室13等を画成してインテークマニホールド1の外形形状を構成するカバー部材20は、消炎装置固定部材30と対向する位置に形成された被覆部21によって消炎装置固定部材30を覆うように消炎装置固定部材30の上から組み付けられてベース部材10に溶着される。   Thus, as shown in FIGS. 4 and 5, the flame extinguishing device 2 of the intake manifold 1 according to the present embodiment is assembled between the base member 10 and the flame extinguishing device 2 and is held between the flame extinguishing device fixing member 30 and the base member 10. It is fixed. Further, the cover member 20 that defines the chamber chamber 13 and the like and constitutes the outer shape of the intake manifold 1 covers the flame extinguishing device fixing member 30 with a covering portion 21 formed at a position facing the flame extinguishing device fixing member 30. The flame extinguishing device fixing member 30 is assembled to the base member 10 from above.

したがって、消炎装置2は、ベース部材10と消炎装置固定部材30とによって挟持されることで径方向に固定されると共に、ベース部材10に形成された端縁押え部17によって軸方向に固定されているので、その位置を確実に固定することができる。   Therefore, the flame extinguishing apparatus 2 is fixed in the radial direction by being sandwiched between the base member 10 and the extinguishing apparatus fixing member 30 and is fixed in the axial direction by the edge pressing portion 17 formed in the base member 10. Therefore, the position can be reliably fixed.

また、図4に示すように、ベース部材10に形成された突起14に消炎装置固定部材30の凹部33を嵌合させているので、消炎装置固定部材30の位置を決めることができ、振動溶着等の溶着手段を採用した場合であっても、振動によって消炎装置固定部材30の位置がずれることを防止できる。   Moreover, as shown in FIG. 4, since the recess 33 of the flame extinguishing device fixing member 30 is fitted to the protrusion 14 formed on the base member 10, the position of the extinguishing device fixing member 30 can be determined, and vibration welding is performed. Even when the welding means such as the above is employed, it is possible to prevent the position of the flame extinguishing device fixing member 30 from being displaced due to vibration.

また、ベース部材10、カバー部材20及び消炎装置固定部材30は、ベース部材10の溶着面15と消炎装置固定部材30の鍔部32の外縁に形成された溶着面34とを、カバー部材20の溶着面22によって覆うように配置して溶着しているので、ベース部材10、カバー部材20及び消炎装置固定部材30の3部材を同時に溶着することができる。   In addition, the base member 10, the cover member 20, and the flame extinguishing device fixing member 30 include the welding surface 15 of the base member 10 and the welding surface 34 formed on the outer edge of the flange portion 32 of the flame extinguishing device fixing member 30 of the cover member 20. Since it arrange | positions so that it may cover with the welding surface 22, and welds, the base member 10, the cover member 20, and the flame-extinguishing apparatus fixing member 30 can be welded simultaneously.

このように、3部材を同時に溶着することで、溶着工程での段取り工数等の削減を図ることができ、インテークマニホールド1の製造コストを抑制することができる。   In this manner, by simultaneously welding the three members, it is possible to reduce the number of setup steps in the welding process, and the manufacturing cost of the intake manifold 1 can be suppressed.

以上説明したように、上述した本実施形態に係るインテークマニホールド1では、分岐管路12が3つ形成された場合について説明を行ったが、分岐管路12の数はこれに限られず、適用される内燃機関の構成に応じて適宜変更可能である。   As described above, in the intake manifold 1 according to the above-described embodiment, the case where three branch pipes 12 are formed has been described. However, the number of branch pipes 12 is not limited to this and is applied. The internal combustion engine can be changed as appropriate according to the configuration of the internal combustion engine.

さらに、本実施形態に係るインテークマニホールド1では、ベース部材10、カバー部材20及び消炎装置固定部材30を振動溶着によって溶着した場合について説明したが、これらの溶着は振動溶着に限られず例えば超音波溶着などを用いても構わない。その様な変更又は改良を加えた形態も本発明の技術的範囲に含まれうることが、特許請求の範囲の記載から明らかである。   Furthermore, in the intake manifold 1 according to the present embodiment, the case where the base member 10, the cover member 20, and the flame extinguishing device fixing member 30 are welded by vibration welding has been described. However, these weldings are not limited to vibration welding, for example, ultrasonic welding. Etc. may be used. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 インテークマニホールド, 2 消炎装置, 10 ベース部材, 11 吸気口, 12 分岐管路, 13 チャンバ室, 14 突起, 15 溶着面, 16 載置部, 20 カバー部材, 21 被覆部, 22 溶着面, 30 消炎装置固定部材, 31 押圧部, 32 鍔部, 33 凹部, 34 溶着面, 35 フランジ部。   DESCRIPTION OF SYMBOLS 1 Intake manifold, 2 Flame extinguishing apparatus, 10 Base member, 11 Inlet port, 12 Branch pipe, 13 Chamber chamber, 14 Protrusion, 15 Welding surface, 16 Mounting part, 20 Cover member, 21 Covering part, 22 Welding surface, 30 Flame extinguishing device fixing member, 31 pressing part, 32 collar part, 33 concave part, 34 welding surface, 35 flange part.

Claims (3)

消炎装置が組み付けられた吸気口と複数の分岐管路とが形成されたチャンバ室を有するインテークマニホールドであって、
前記インテークマニホールドは、長手方向に沿った分割面で複数に分割されて少なくともベース部材とカバー部材とから構成され、
前記消炎装置は、前記吸気口に溶着される消炎装置固定部材と前記ベース部材によって挟持され
前記消炎装置固定部材は、前記消炎装置の外周を径方向に押圧する押圧部を備え、
前記ベース部材は、前記吸気口近傍に突起が形成され、
前記消炎装置固定部材は、前記押圧部から延設する鍔部を備え、該鍔部に前記突起に嵌合可能な凹部を備えることを特徴とするインテークマニホールド。
An intake manifold having a chamber chamber in which an intake port and a plurality of branch pipes are formed.
The intake manifold is divided into a plurality of division surfaces along the longitudinal direction, and includes at least a base member and a cover member.
The flame extinguishing device is sandwiched between the flame extinguishing device fixing member welded to the air inlet and the base member ,
The flame extinguishing device fixing member includes a pressing portion that presses the outer periphery of the flame extinguishing device in a radial direction,
The base member has a protrusion formed in the vicinity of the air inlet,
The flame arrestor fixing member includes a flange portion for extending from the pressing portion, the intake manifold, characterized in Rukoto includes a fittable recesses in the projections on the collar portion.
請求項1に記載のインテークマニホールドにおいて、
前記ベース部材、前記カバー部材及び前記消炎装置固定部材は、これらの3部材を同時に溶着することを特徴とするインテークマニホールド。
Intake manifold according to claim 1 ,
The intake manifold according to claim 1, wherein the base member, the cover member, and the flame extinguishing device fixing member weld these three members simultaneously.
請求項1又は2に記載のインテークマニホールドにおいて、
前記消炎装置固定部材は、前記消炎装置の軸方向の外周縁部と当接するフランジ部を備えることを特徴とするインテークマニホールド。
Intake manifold according to claim 1 or 2 ,
The intake manifold, wherein the flame extinguishing device fixing member includes a flange portion that comes into contact with an outer peripheral edge portion in an axial direction of the flame extinguishing device.
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