JPH064359U - Intake manifold - Google Patents
Intake manifoldInfo
- Publication number
- JPH064359U JPH064359U JP4506992U JP4506992U JPH064359U JP H064359 U JPH064359 U JP H064359U JP 4506992 U JP4506992 U JP 4506992U JP 4506992 U JP4506992 U JP 4506992U JP H064359 U JPH064359 U JP H064359U
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- connecting member
- cylinder head
- tip
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
(57)【要約】
【目的】 吸気マニホルドのプレナム・チャンバに接続
された分岐管と、エンジンのシリンダヘッドへの接続部
材との連結部分において、分岐管と接続部材との間に、
ズレや隙間が生じたりあるいは孔内周面にろう材溜まり
が生じたりすることなく、空気の流れを阻害するような
内方突出部の形成をなくす。通気抵抗を小さくし、空気
の流れをスムーズにして、吸気流量が増大し、自動車エ
ンジンの性能アップを図る。
【構成】 エンジンのシリンダヘッドへの接続部材11の
孔12に、分岐管 5の先端部5bが、シリンダヘッドと反対
側から差し込まれて、分岐管 5の先端部5bが接続部材11
にろう付けされるとともに、分岐管 5の先端部5bの端面
と、接続部材11のシリンダヘッド側の側面11a とが面一
となされている。
(57) [Abstract] [Purpose] At the connecting portion between the branch pipe connected to the plenum chamber of the intake manifold and the connecting member to the cylinder head of the engine, between the branch pipe and the connecting member,
Eliminates the formation of inward projections that hinder the flow of air without causing gaps or gaps or brazing filler metal pooling on the inner peripheral surface of the holes. The ventilation resistance is reduced, the air flow is smoothed, the intake flow rate is increased, and the performance of the automobile engine is improved. [Structure] The tip portion 5b of the branch pipe 5 is inserted into the hole 12 of the connecting member 11 to the cylinder head of the engine from the side opposite to the cylinder head, and the tip portion 5b of the branch pipe 5 is connected to the connecting member 11.
In addition to being brazed, the end surface of the tip portion 5b of the branch pipe 5 and the side surface 11a of the connecting member 11 on the cylinder head side are flush with each other.
Description
【０００１】[0001]
この考案は、例えば自動車用エンジンに用いられる吸気マニホルドに関する。 The present invention relates to an intake manifold used for an automobile engine, for example.
【０００２】 この明細書において、アルミニウムとは、純アルミニウムの他にアルミニウム 合金を含んで意味するものとする。In this specification, aluminum means an aluminum alloy in addition to pure aluminum.
【０００３】[0003]
従来、自動車用エンジンに用いられる吸気マニホルドは、プレナム・チャンバ と、複数の分岐管と、エンジンのシリンダヘッドへの接続部材とを備え、各分岐 管の一端部がプレナム・チャンバに連結され、分岐管の先端部がシリンダヘッド への接続部材に連結されていた。 Conventionally, an intake manifold used for an automobile engine includes a plenum chamber, a plurality of branch pipes, and a connecting member to an engine cylinder head. One end of each branch pipe is connected to the plenum chamber, The tip of the pipe was connected to the connecting member to the cylinder head.
【０００４】[0004]
例えば図４に示すように、従来は、エンジンのシリンダヘッドへの接続部材(2 1)に、各分岐管(25)の先端部(25b) が差し込まれる孔(22)があけられ、該孔(22) のシリンダヘッドと反対側の開口端より内方に所要長さ入り込んだ部分の内周壁 にろう材溜り形成用環状第１段部(23)が設けられ、この第１段部(23)よりさらに 所要長さ入り込んだ部分の内周壁に第１段部(23)より径小の分岐管先端部受け用 環状第２段部(23)が設けられており、各分岐管(25)の先端部(25b) が接続部材(2 1)の孔(22)にシリンダヘッドと反対側から差し込まれて、各分岐管(25)の先端部 (25b) が環状第２段部(23)に受けられ、かつ各分岐管(25)の先端部(25b) と、接 続部材(21)の孔(22)の内周壁と、環状第１段部(23)との間にろう材溜り用間隙が 形成されて、該間隙にろう材(26)が流し込まれることにより、各分岐管(25)の先 端部(25b) が接続部材(21)にろう付けされていた。 For example, as shown in FIG. 4, conventionally, a hole (22) into which a tip portion (25b) of each branch pipe (25) is inserted is formed in a connecting member (21) to a cylinder head of an engine. An annular first step portion (23) for forming a brazing filler metal pool is provided on an inner peripheral wall of a portion of the opening (22) which is located inward from the opening end on the side opposite to the cylinder head, and the first step portion (23) ) Is provided with an annular second step portion (23) for receiving the tip end of the branch pipe having a diameter smaller than that of the first step portion (23) on the inner peripheral wall of the portion into which the required length is entered, and each branch pipe (25) The tip end (25b) of each branch pipe (25) is inserted into the hole (22) of the connecting member (21) from the side opposite to the cylinder head, and the tip end (25b) of each branch pipe (25) is annular second step (23). Of the brazing filler metal between the tip portion (25b) of each branch pipe (25), the inner peripheral wall of the hole (22) of the connecting member (21), and the annular first step portion (23). A gap for use is formed and the brazing filler metal (26) is poured into the gap. Accordingly, the previous end of each branch pipe (25) (25b) has been brazed to the connecting member (21).
【０００５】 しかしながら、これでは、各分岐管(25)の先端部(25b) と、接続部材(21)の孔 (22)の内周壁あるいは段部(23)との間に、ズレあるいは隙間が生じやすく、この ようなズレあるいは隙間が生じると、空気の流れが阻害され、通気抵抗が大きく なって、吸気流量が減少し、自動車エンジンの性能が低下するという問題があっ た。However, in this case, there is a gap or a gap between the tip portion (25b) of each branch pipe (25) and the inner peripheral wall of the hole (22) of the connecting member (21) or the step portion (23). It is apt to occur, and when such a gap or gap occurs, the flow of air is obstructed, ventilation resistance increases, the intake flow rate decreases, and the performance of the automobile engine deteriorates.
【０００６】 例えば図５に示すように、従来は、各分岐管(25)の先端部(25b) と、接続部材 (21)の孔(22)内の環状第１段部(23)との間に隙間(27)が生じ、その原因としては 、まず第１に、分岐管(25)の先端部の切断のさい、いわゆる直角度が出ていない 、つぎに第２に、切断された分岐管(25)の切断長さが一定でない、さらに第３に 、ろう付け前の部材のセッティングが悪い、などが考えられた。For example, as shown in FIG. 5, conventionally, the tip portion (25b) of each branch pipe (25) and the annular first step portion (23) in the hole (22) of the connecting member (21) are separated. There is a gap (27) between them. Firstly, when cutting the tip of the branch pipe (25), there is no so-called squareness, and secondly, the cut branch. It was thought that the cut length of the pipe (25) was not constant, and thirdly, the setting of the members before brazing was poor.
【０００７】 また図６に示すように、従来は、各分岐管(25)の先端部(25b) と、接続部材(2 1)の孔(22)内の環状第１段部(23)との間にズレが生じ、その原因としては、分岐 管(25)の押出素管の偏肉によるもの、あるいは分岐管(25)の曲げ加工のさい生じ る偏肉によるものなどが考えられた。Further, as shown in FIG. 6, conventionally, a tip portion (25b) of each branch pipe (25) and an annular first step portion (23) in the hole (22) of the connecting member (21) are provided. It is considered that there is a gap between the pipes, and the cause thereof is due to the uneven thickness of the extruded raw pipe of the branch pipe (25) or the uneven thickness of the branch pipe (25) during bending.
【０００８】 さらに図７に示すように、従来は、各分岐管(25)の先端部(25b) のろう付けの さい、接続部材(21)の孔(22)の内壁を伝ってろう材(26)が環状第１段部(23)より 下側の孔(22)内周壁の表面に流れ出て、溜まることがあった。Further, as shown in FIG. 7, conventionally, it is difficult to braze the tip end portion (25b) of each branch pipe (25), and the brazing filler metal (the brazing filler metal () is transmitted along the inner wall of the hole (22) of the connecting member (21). 26) sometimes flowed out and accumulated on the surface of the inner peripheral wall of the hole (22) below the first annular step (23).
【０００９】 そして、これらのいずれの場合にも、各分岐管(25)の先端部(25b) 内から接続 部材(21)の孔(22)内に至る部分に、内方突出部が生じ、この内方突出部によって 空気の流れが阻害され、通気抵抗が大きくなって、吸気流量が減少するという問 題があった。Then, in any of these cases, an inward protruding portion is generated in a portion from the inside of the tip portion (25b) of each branch pipe (25) to the inside of the hole (22) of the connecting member (21), There was a problem that the air flow was obstructed by this inward protrusion, the ventilation resistance increased, and the intake flow rate decreased.
【００１０】 この考案の目的は、上記の従来技術の問題を解決し、分岐管の先端部とエンジ ンのシリンダヘッドへの接続部材との連結部分において空気の流れが阻害される ような内方突出部を生じるようなことが全くなく、従って通気抵抗が小さく、吸 気流量が増大して、自動車エンジンの性能アップ図り得る、吸気マニホルドを提 供しようとするにある。The object of the present invention is to solve the above-mentioned problems of the prior art, and to prevent the air flow at the connecting portion between the tip of the branch pipe and the connecting member of the engine to the cylinder head. There is an attempt to provide an intake manifold that has no protrusions, has a small air flow resistance, increases an intake flow rate, and can improve the performance of an automobile engine.
【００１１】[0011]
この考案は、上記の目的を達成するために、プレナム・チャンバと、各一端部 がプレナム・チャンバに接続された複数の分岐管と、エンジンのシリンダヘッド への接続部材とを備えている吸気マニホルドにおいて、シリンダヘッドへの接続 部材に、各分岐管の先端部が差し込まれる孔があけられ、各分岐管の先端部が接 続部材の孔にシリンダヘッドと反対側から差し込まれて、各分岐管の先端部が接 続部材にろう付けされるとともに、各分岐管の先端部の端面と、接続部材のシリ ンダヘッド側の側面とが面一となされている、吸気マニホルドを要旨としている 。 In order to achieve the above object, the present invention is directed to an intake manifold including a plenum chamber, a plurality of branch pipes each having one end connected to the plenum chamber, and a connecting member to an engine cylinder head. In the connection member to the cylinder head, a hole into which the tip end of each branch pipe is inserted is made, and the tip end of each branch pipe is inserted into the hole of the connecting member from the side opposite to the cylinder head. The gist of the intake manifold is that the tip end of each of the branch pipes is brazed to the connecting member, and the end face of each branch pipe is flush with the side surface of the connecting member on the cylinder head side.
【００１２】[0012]
上記において、吸気マニホルドの各分岐管の先端部が接続部材の孔にシリンダ ヘッドと反対側から差し込まれてろう付け、各分岐管の先端部の端面と、接続部 材のシリンダヘッド側の側面とが面一となされている。従って、分岐管の先端部 とエンジンのシリンダヘッドへの接続部材との連結部分においては、空気の流れ が阻害されるような内方突出部を生じるようなことが全くなく、従って通気抵抗 が小さく、吸気流量が増大し、自動車エンジンの性能アップが可能となる。 In the above, the tip of each branch pipe of the intake manifold was inserted into the hole of the connecting member from the side opposite to the cylinder head and brazed, and the end face of the tip of each branch pipe and the side surface of the connecting member on the cylinder head side were connected. Is made flush. Therefore, at the connecting portion between the tip of the branch pipe and the connecting member to the cylinder head of the engine, there is no inward projection that obstructs the air flow, and therefore the ventilation resistance is small. The intake air flow rate increases, and the performance of the automobile engine can be improved.
【００１３】[0013]
つぎに、この考案の実施例を図面に基づいて説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
【００１４】 図１と図２において、この考案による吸気マニホルドは、一端が開口するとと もに他端が閉鎖されたアルミニウム展伸材からなるプレナム・チャンバ(1) と、 ４つのアルミニウム展伸材からなる分岐管(5) と、エンジンのシリンダヘッドへ のアルミニウム製接続部材(11)とを備えている。Referring to FIGS. 1 and 2, an intake manifold according to the present invention comprises a plenum chamber (1) made of an aluminum wrought material having one end opened and the other end closed, and four aluminum wrought materials. A branch pipe (5) and an aluminum connecting member (11) to the engine cylinder head.
【００１５】 プレナム・チャンバ(1) の周壁(1a)に分岐管(5) と同数の吸気流通孔(2) があ けられるとともに、各吸気流通孔(2) の周囲に分岐管接続用筒状外方突出部(3) が設けられており、各分岐管(5) の一端部(5a)が、プレナム・チャンバ周壁(1a) の分岐管接続用筒状外方突出部(3) 内に挿入されて、ろう付されている。The peripheral wall (1a) of the plenum chamber (1) is provided with the same number of intake circulation holes (2) as the branch pipes (5), and a branch pipe connecting cylinder is provided around each intake circulation hole (2). An outer protrusion (3) is provided, and one end (5a) of each branch pipe (5) is located inside the cylindrical outer protrusion (3) for connecting the branch pipe of the plenum chamber peripheral wall (1a). Inserted in and brazed.
【００１６】 各分岐管(5) の先端部(5b)は、エンジンのシリンダヘッドへの取付け用の１つ のアルミニウム製接続部材(11)に、下記のように接続されている。この接続部材 (11)は、展伸材および鋳造品のいずれからなるものでもよい。The tip portion (5b) of each branch pipe (5) is connected to one aluminum connecting member (11) for attachment to the cylinder head of the engine as follows. The connecting member (11) may be made of a wrought material or a cast product.
【００１７】 すなわち、シリンダヘッドへの接続部材(11)は横長方形状であって、該接続部 材(11)に、各分岐管(5) の先端部(5b)が差し込まれる分岐管(5) と同数の孔(12) があけられている。各孔(12)のシリンダヘッドと反対側の開口端より内方に所要 長さ入り込んだ部分の内周壁にろう材溜り形成用環状段部(13)が設けられている 。そして、各分岐管(5) の先端部(5b)が接続部材(11)の孔(12)にシリンダヘッド と反対側から差し込まれる。この状態では、各分岐管(5) の先端部(5b)の外周壁 と、接続部材(11)の孔(12)の内周壁と、環状段部(13)との間にろう材溜り用間隙 が形成されて、該間隙にろう材(14)が流し込まれることにより、各分岐管(5) の 先端部(5b)が接続部材(11)にろう付けされている。That is, the connecting member (11) to the cylinder head has a lateral rectangular shape, and the branch pipe (5) into which the tip portion (5b) of each branch pipe (5) is inserted into the connecting member (11). ) And the same number of holes (12) are drilled. An annular step portion (13) for forming a brazing filler metal reservoir is provided on the inner peripheral wall of a portion of each hole (12) that is inwardly of a required length from the opening end on the side opposite to the cylinder head. Then, the tip portion (5b) of each branch pipe (5) is inserted into the hole (12) of the connecting member (11) from the side opposite to the cylinder head. In this state, a brazing filler metal is retained between the outer peripheral wall of the tip portion (5b) of each branch pipe (5), the inner peripheral wall of the hole (12) of the connecting member (11), and the annular step (13). A gap is formed, and the brazing material (14) is poured into the gap, whereby the tip end portion (5b) of each branch pipe (5) is brazed to the connecting member (11).
【００１８】 そうして、この考案においては、各分岐管(5) の先端部(5b)の端面と、接続部 材(11)のシリンダヘッド側の側面(11a) とが面一となされている。Thus, in the present invention, the end surface of the tip portion (5b) of each branch pipe (5) and the side surface (11a) of the connecting member (11) on the cylinder head side are flush with each other. There is.
【００１９】 なお、各分岐管(5) の先端部(5b)は接続部材(11)を介して、図示しないエンジ ンのシリンダヘッドに接続されるようになっている。The tip portion (5b) of each branch pipe (5) is connected to a cylinder head of an engine (not shown) via a connecting member (11).
【００２０】 また、プレナム・チャンバ(1) 他端の閉鎖壁は外方に突出した半球状であり、 プレナム・チャンバ(1) の開口端には、アルミニウム鋳造品からなるスロットル ボディ取付け用筒状部材(6) が固着されている。筒状部材(6) の一端にはスロッ トルボディ取付け用フランジ(7) が一体的に設けられている。そして、筒状部材 (6) に、図示しないスロットルバルブを内蔵したスロットルボディが取付けられ 、このスロットルボディにエアクリーナからの送気管が接続されるようになって いる。Further, the closing wall at the other end of the plenum chamber (1) is a hemispherical shape projecting outward, and the open end of the plenum chamber (1) has a tubular body for mounting a throttle body made of an aluminum casting. The member (6) is fixed. A slot body mounting flange (7) is integrally provided at one end of the tubular member (6). A throttle body (not shown) having a built-in throttle valve is attached to the tubular member (6), and an air supply pipe from an air cleaner is connected to the throttle body.
【００２１】 なお、上記において、各分岐管(5) の先端部(5b)の端面と、接続部材(11)のシ リンダヘッド側の側面(11a) とを面一とするには、例えばつぎに方法による。In the above, in order to make the end surface of the tip portion (5b) of each branch pipe (5) and the side surface (11a) of the connecting member (11) on the cylinder head side flush with each other, for example, Depending on the method.
【００２２】 すなわち、まず図３イに示すように、各分岐管(5) の先端部(5b)を接続部材(1 1)の孔(12)にシリンダヘッドと反対側から差し込むさい、分岐管(5) の先端を該 孔(12)によりわずかに外側に突き出しておく。そしてこの状態で、ろう材溜り用 間隙内にろう材(14)を流し込んで、各分岐管(5) の先端部(5b)を接続部材(11)に ろう付けする。That is, first, as shown in FIG. 3A, when inserting the tip portion (5b) of each branch pipe (5) into the hole (12) of the connecting member (11) from the side opposite to the cylinder head, The tip of (5) is slightly protruded to the outside by the hole (12). Then, in this state, the brazing material (14) is poured into the brazing material reservoir gap to braze the tip end (5b) of each branch pipe (5) to the connecting member (11).
【００２３】 その後、図３ロに示すように、接続部材(11)のシリンダヘッド側の側面(11a) およびこれよりわずかに外方に突出している分岐管(5) の先端を、エンドミル(1 5)によって切削して、表面研磨し、これによって図３ハに示すように、各分岐管 (5) の先端部(5b)の端面と、接続部材(11)のシリンダヘッド側の側面(11a) とを 面一とするものである。After that, as shown in FIG. 3B, the cylinder head side surface (11a) of the connection member (11) and the tip of the branch pipe (5) slightly outwardly protruding from this are connected to the end mill (1). As shown in Fig. 3C, the end surface of the tip end (5b) of each branch pipe (5) and the side surface (11a) of the connecting member (11) on the cylinder head side are cut by 5). ) And are flush with each other.
【００２４】 このように、各分岐管(5) の先端部(5b)の端面と接続部材(11)のシリンダヘッ ド側の側面(11a) とが面一となされることにより、分岐管(5) の先端部(5b)と接 続部材(11)との連結部分において、ズレや隙間が生じることなく、あるいはまた 接続部材(11)の孔(12)の内周面にろう材溜まりが形成されることなく、いずれに しても空気の流れが阻害されるような内方突出部を生じるようなことが全くなく 、従って通気抵抗が小さくなって、吸気流量が増大する。As described above, the end surface of the tip end portion (5b) of each branch pipe (5) and the side surface (11a) of the connecting member (11) on the cylinder head side are flush with each other, so that the branch pipe (5 ), There is no gap or gap at the connecting part between the tip (5b) and the connecting member (11), or there is a brazing material pool on the inner surface of the hole (12) of the connecting member (11). In either case, no inward protrusion that would obstruct the flow of air is produced at all, and therefore the ventilation resistance is reduced and the intake flow rate is increased.
【００２５】 なお、各分岐管(5) の先端部(5b)の端面と、接続部材(11)のシリンダヘッド側 の側面(11a) とを面一とする方法は、上記図３に示す方法だけでなく、その他の 方法によっても、勿論良い。The method of making the end surface of the tip end portion (5b) of each branch pipe (5) flush with the side surface (11a) of the connecting member (11) on the cylinder head side is the method shown in FIG. Of course, it is good not only by other methods.
【００２６】 なお、上記実施例においては、プレナム・チャンバ(1) として、一端が開口す るとともに他端が閉鎖されたアルミニウム展伸材からなる有底筒形のものが用い られているが、プレナム・チャンバ(1) としては、その他、両端部が閉鎖されて 、かつ中央部に開口部が設けられたもの、あるいはまた箱形のものなど、他の形 状を有するものであっても、良い。In the above embodiment, the plenum chamber (1) is a bottomed cylinder made of an aluminum wrought material having one end open and the other end closed. As the plenum chamber (1), other plenum chambers with both ends closed and an opening in the center, or other shapes such as a box shape, good.
【００２７】[0027]
この考案は、上述のように、プレナム・チャンバと、各一端部がプレナム・チ ャンバに接続された複数の分岐管と、エンジンのシリンダヘッドへの接続部材と を備えている吸気マニホルドにおいて、シリンダヘッドへの接続部材に、各分岐 管の先端部が差し込まれる孔があけられ、各分岐管の先端部が接続部材の孔にシ リンダヘッドと反対側から差し込まれて、各分岐管の先端部が接続部材にろう付 けされるとともに、各分岐管の先端部の端面と、接続部材のシリンダヘッド側の 側面とが面一となされているものであるから、分岐管の先端部と接続部材との連 結部分において、従来のようなズレや隙間が生じることなく、あるいはまた接続 部材の孔の内周面にろう材溜まりが形成されることなく、いずれにしても空気の 流れが阻害されるような内方突出部を生じるようなことが全くなく、従って通気 抵抗が小さくなって、吸気流量が増大し、出力、トルク等の自動車エンジンの性 能アップが可能であるという効果を奏する。 As described above, the present invention provides a cylinder in an intake manifold including a plenum chamber, a plurality of branch pipes each having one end connected to a plenum chamber, and a connecting member to an engine cylinder head. A hole into which the tip of each branch pipe is inserted is made in the connecting member to the head, and the tip of each branch pipe is inserted into the hole of the connecting member from the side opposite to the cylinder head, and the tip of each branch pipe is inserted. Is brazed to the connecting member, and the end surface of the tip of each branch pipe is flush with the side surface of the connecting member on the cylinder head side. In the connection part of the, the flow of air is obstructed in any case, without any gaps or gaps as in the past, or the formation of brazing filler metal on the inner peripheral surface of the hole of the connecting member. Inward protrusion is absolutely no such cause as, therefore airflow resistance is decreased, intake air flow rate is increased, output, there is an effect that it is possible to sexual performance up auto engine torque or the like.
【図１】この考案の実施例を示す吸気マニホルドの横断
面図である。FIG. 1 is a cross-sectional view of an intake manifold showing an embodiment of the present invention.
【図２】同吸気マニホルドの概略斜視図である。FIG. 2 is a schematic perspective view of the intake manifold.
【図３】同吸気マニホルドの分岐管先端部とシリンダヘ
ッドへの接続部材との連結部分の拡大断面図で、図３イ
は、分岐管の先端を接続部材の孔によりわずかに外側に
突き出して、ろう付けした状態を示している。図３ロ
は、接続部材の側面および分岐管の外方突出端をエンド
ミルによって切削する状態を示している。図３ハは、切
削により分岐管の先端部の端面と接続部材の側面とが面
一となされた状態を示している。FIG. 3 is an enlarged cross-sectional view of a connecting portion between a tip end portion of the branch pipe of the intake manifold and a connecting member to the cylinder head. FIG. , Shows the brazed state. FIG. 3B shows a state in which the side face of the connecting member and the outward protruding end of the branch pipe are cut by an end mill. FIG. 3C shows a state in which the end surface of the tip portion of the branch pipe and the side surface of the connecting member are flush with each other by cutting.
【図４】従来の吸気マニホルドの分岐管先端部とシリン
ダヘッドへの接続部材との連結部分の拡大断面図であ
る。FIG. 4 is an enlarged cross-sectional view of a connecting portion between a branch pipe tip portion of a conventional intake manifold and a connecting member to a cylinder head.
【図５】同拡大断面図で、分岐管の先端部と接続部材の
孔内の環状段部との間に隙間が生じた状態を示してい
る。FIG. 5 is an enlarged cross-sectional view showing a state in which a gap is created between a tip end portion of a branch pipe and an annular step portion inside a hole of a connecting member.
【図６】同拡大断面図で、分岐管の押出素管の偏肉によ
り、分岐管の先端部と接続部材の孔内の環状段部との間
にズレが生じた状態を示している。FIG. 6 is an enlarged cross-sectional view showing a state where a displacement occurs between a tip end portion of the branch pipe and an annular step portion inside a hole of the connecting member due to uneven thickness of the extruded raw pipe of the branch pipe.
【図７】同拡大断面図で、分岐管の先端部のろう付けに
よって、接続部材の孔の内壁にろう材溜りが形成された
状態を示している。FIG. 7 is an enlarged cross-sectional view showing a state where a brazing filler metal reservoir is formed on the inner wall of the hole of the connecting member by brazing the tip portion of the branch pipe.
１ プレナム・チャンバ １ａ 周壁 ２ 吸気流通孔 ５ 分岐管 ５ａ 分岐管の一端部 ５ｂ 分岐管の先端部 １１ エンジンのシリンダヘッドへの接続部材 １１ａ 接続部材のシリンダヘッド側の側面 １２ 吸気流通孔 DESCRIPTION OF SYMBOLS 1 Plenum chamber 1a Peripheral wall 2 Intake circulation hole 5 Branch pipe 5a One end of branch pipe 5b Branch pipe tip 11 Connecting member to cylinder head of engine 11a Side face of cylinder head of connecting member 12 Intake circulation hole
Claims (1)
a)がプレナム・チャンバ(1) に接続された複数の分岐管
(5) と、エンジンのシリンダヘッドへの接続部材(11)と
を備えている吸気マニホルドにおいて、シリンダヘッド
への接続部材(11)に、各分岐管(5) の先端部(5b)が差し
込まれる孔(12)があけられ、各分岐管(5) の先端部(5b)
が接続部材(11)の孔(12)にシリンダヘッドと反対側から
差し込まれて、各分岐管(5) の先端部(5b)が接続部材(1
1)にろう付けされるとともに、各分岐管(5) の先端部(5
b)の端面と、接続部材(11)のシリンダヘッド側の側面(1
1a) とが面一となされている、吸気マニホルド。1. A plenum chamber (1) with one end (5)
a) multiple branch pipes connected to the plenum chamber (1)
In the intake manifold including (5) and the connecting member (11) to the engine cylinder head, the tip end (5b) of each branch pipe (5) is inserted into the connecting member (11) to the cylinder head. Holes (12) are drilled and the tip (5b) of each branch pipe (5)
Is inserted into the hole (12) of the connecting member (11) from the side opposite to the cylinder head, and the tip (5b) of each branch pipe (5) is connected to the connecting member (1).
1) and the tip of each branch pipe (5) (5
b) end surface and the cylinder head side surface (1) of the connecting member (11).
The intake manifold is flush with 1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506992U JPH064359U (en) | 1992-06-29 | 1992-06-29 | Intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506992U JPH064359U (en) | 1992-06-29 | 1992-06-29 | Intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH064359U true JPH064359U (en) | 1994-01-21 |
Family
ID=12709062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4506992U Pending JPH064359U (en) | 1992-06-29 | 1992-06-29 | Intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064359U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711227A (en) * | 1980-06-25 | 1982-01-20 | Nippon Sanmou Senshiyoku Kk | Antistatic fiber product |
-
1992
- 1992-06-29 JP JP4506992U patent/JPH064359U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711227A (en) * | 1980-06-25 | 1982-01-20 | Nippon Sanmou Senshiyoku Kk | Antistatic fiber product |
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