JPH07117007B2 - Rectifier mounting structure for the engine intake pipe - Google Patents
Rectifier mounting structure for the engine intake pipeInfo
- Publication number
- JPH07117007B2 JPH07117007B2 JP28621986A JP28621986A JPH07117007B2 JP H07117007 B2 JPH07117007 B2 JP H07117007B2 JP 28621986 A JP28621986 A JP 28621986A JP 28621986 A JP28621986 A JP 28621986A JP H07117007 B2 JPH07117007 B2 JP H07117007B2
- Authority
- JP
- Japan
- Prior art keywords
- intake pipe
- ring
- rectifying
- engine intake
- elastic body
- 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.)
- Expired - Lifetime
Links
Landscapes
- Details Of Flowmeters (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はエンジン吸気管に設ける整流体の取付構造に関
する。Description: [Industrial field of use] The present invention relates to a structure for mounting a rectifying body provided on an engine intake pipe.
［従来の技術］ エンジンの吸気管に空気流量計を設ける場合等には偏流
による誤差の発生を防止する為に、通常、整流体を設け
る。その一例を第４図に示す。図において、エンジン吸
気管５内には空気流入方向（図中矢印）に直交せしめて
整流体１が設けられ、該整流体１は厚肉板体で、板面に
は多数の空気流通孔13が格子状に形成してある。整流体
１は下流側端面11を吸気管５の内壁段付部51に当接せし
めるともに、上記側端面12は吸気管内壁の溝内にはめ込
んだスナップリング２により位置決め固定されている。
なお、エンジン吸気管に整流体を設けたものは例えば特
公昭59−4286号あるいは実開昭57−84418号がある。[Prior Art] When an air flow meter is provided in an intake pipe of an engine, a rectifier is usually provided in order to prevent an error due to a drift. An example thereof is shown in FIG. In the figure, a rectifying body 1 is provided in the engine intake pipe 5 so as to be orthogonal to the air inflow direction (arrow in the figure), and the rectifying body 1 is a thick plate, and a large number of air circulation holes 13 are formed on the plate surface. Are formed in a grid pattern. The rectifying body 1 has its downstream end surface 11 brought into contact with the inner wall stepped portion 51 of the intake pipe 5, and the side end surface 12 is positioned and fixed by a snap ring 2 fitted in a groove of the intake pipe inner wall.
The engine intake pipe provided with a rectifier is, for example, Japanese Patent Publication No. 59-4286 or Japanese Utility Model Publication No. 57-84418.
［発明が解決しようとする問題点］ ところで、上記取付け構造によると、整流体１の製作誤
差等によってこれとスナップリング２との間に図示の如
く間隙が生じることがあり、この状態でエンジンのバッ
クファイアが生じると爆風により整流体１が移動激突し
てリング状止め具たるスナップリング２が外れ、あるい
は整流体１が破損することがあった。[Problems to be Solved by the Invention] However, according to the mounting structure described above, a gap may occur between the rectifying body 1 and the snap ring 2 as shown in the figure due to manufacturing errors or the like. When backfire occurs, the rectifying body 1 may move and collide with the blast, and the snap ring 2 that is a ring-shaped stopper may come off or the rectifying body 1 may be damaged.
本発明はかかる問題点を解決するもので、エンジンバッ
クファイアが生じても整流体の破損やリング状止め具の
外れを生じない整流体の取付け構造を提供することを目
的とする。The present invention solves such problems, and an object of the present invention is to provide a rectifier mounting structure that does not cause damage to the rectifier or disconnection of the ring-shaped stopper even if engine backfire occurs.
［問題点を解決する為の手段］ 第１の発明は第１図に示すように、整流体１は下流側端
面11の外周をエンジン吸気管５の内壁段付部51に当接せ
しめ、一方、整流体１の上流側端面12の外周にはリング
状弾性体３を当接せしめて、該弾性体３を介してリング
状止め具２により上記整流体１を吸気管内壁に固定す
る。[Means for Solving Problems] In the first invention, as shown in FIG. 1, in the rectifying body 1, the outer periphery of the downstream end face 11 is brought into contact with the inner wall stepped portion 51 of the engine intake pipe 5, The ring-shaped elastic body 3 is brought into contact with the outer circumference of the upstream end face 12 of the rectifying body 1, and the rectifying body 1 is fixed to the inner wall of the intake pipe by the ring-shaped stopper 2 via the elastic body 3.
第２の発明は第３図に示すように、整流体１は下流側端
面11の外周をエンジン吸気管５の内壁段付部51に当接せ
しめ、一方整流体１の上流側端面12の外周にはリング状
弾性体３を当接せしめるとともに、上記リング状弾性体
３には、該弾性体３の内周面に延びる爪部41を周方向複
数個所に形成したリング状係止体４を重ね、これら弾性
体３及び係止体４を介してリング状止め具２により上記
整流体１を吸気管内壁に固定する。In the second aspect of the invention, as shown in FIG. 3, the rectifying body 1 has the outer periphery of the downstream end surface 11 abutted against the inner wall stepped portion 51 of the engine intake pipe 5, while the outer periphery of the upstream end surface 12 of the rectifying body 1 is made. The ring-shaped elastic body 3 is brought into contact with the ring-shaped elastic body 3, and the ring-shaped elastic body 3 is provided with the ring-shaped locking body 4 formed with a plurality of claw portions 41 extending in the inner peripheral surface of the elastic body 3 at a plurality of positions in the circumferential direction. Then, the rectifying body 1 is fixed to the inner wall of the intake pipe by the ring-shaped stopper 2 via the elastic body 3 and the locking body 4.
［作用、効果］ 上記第１の発明によれば、整流体１と止め具２の間に弾
性体３を介在せしめたから整流体１の製作誤差は上記弾
性体３の変形により吸収され、移動間隙を生じることな
く上記整流体１は上記段付部51に当接位置決めされる。
そして、バックファイア時に整流体１が受ける爆圧は上
記弾性体３によって吸収され、整流体１の破損や止め具
２の外れが防止される。[Operations and Effects] According to the first aspect of the invention, since the elastic body 3 is interposed between the rectifying body 1 and the stopper 2, the manufacturing error of the rectifying body 1 is absorbed by the deformation of the elastic body 3 and the moving gap. The rectifying body 1 is brought into contact with and positioned by the stepped portion 51 without causing any trouble.
The explosive pressure applied to the rectifying body 1 during backfire is absorbed by the elastic body 3 to prevent the rectifying body 1 from being damaged and the stopper 2 from coming off.
上記第２の発明によれば、上記第１の発明の効果に加え
て、係止体４の爪部41によりバックファイア時のリング
状弾性体３の脱落が確実に防止される。According to the second invention, in addition to the effect of the first invention, the claw portion 41 of the locking body 4 reliably prevents the ring-shaped elastic body 3 from falling off during backfire.
［実施例］ 第１図には第１の発明の実施例を示し、図において、エ
ンジン吸気管５の内周壁には段付部51が形成され、該段
付部51に下流側端面11を当接せしめて整流体１が配設し
てある。整流体１には多数の空気流通孔13がハニカム状
に形成してある。上記整流体１の上流側端面12外周に
は、第２図に示す如きゴム体よりなるリング状弾性体３
が当接せしめてある。弾性体３は吸気管５内周壁の溝内
にはめ込んだスナップリング２との間に挿置してあり、
その弾性力により整流体１を上記段付部51に押付け固定
している。なお、吸入空気は図示矢印の方向に流れる。[Embodiment] FIG. 1 shows an embodiment of the first invention. In the drawing, a stepped portion 51 is formed on the inner peripheral wall of an engine intake pipe 5, and the stepped portion 51 is provided with a downstream end face 11. The rectifying body 1 is disposed in contact with each other. A large number of air circulation holes 13 are formed in the rectifying body 1 in a honeycomb shape. On the outer periphery of the upstream end face 12 of the rectifying body 1, a ring-shaped elastic body 3 made of a rubber body as shown in FIG.
Are in contact with each other. The elastic body 3 is inserted between the snap ring 2 fitted in the groove of the inner peripheral wall of the intake pipe 5,
The rectifying body 1 is pressed and fixed to the stepped portion 51 by the elastic force. The intake air flows in the direction of the arrow shown.
上記構造によれば、整流体１の製作誤差は弾性体３の変
形により吸収され、整流体１は常に段付部51に当接して
位置決めされる。そして、バックファイア時に図の左方
より爆圧が至り整流体１に作用しても、これは上記弾性
体３により効果的に吸収されてスナップリング２に対す
る衝撃が緩和され、スナップリング２の外れが防止され
る。また、爆圧作用時の整流体１の破損も防止される。According to the above structure, the manufacturing error of the rectifying body 1 is absorbed by the deformation of the elastic body 3, and the rectifying body 1 is always brought into contact with the stepped portion 51 and positioned. Even if the explosion pressure reaches from the left side of the figure during backfire and acts on the rectifying body 1, this is effectively absorbed by the elastic body 3 and the impact on the snap ring 2 is alleviated, and the snap ring 2 comes off. Is prevented. Further, damage to the rectifying body 1 during the action of explosive pressure is also prevented.
ところで、爆圧作用時に上記弾性体３が内方へ変形して
脱落することが皆無とは言えず、第２の発明はこれを防
止するものである。すなわち、第３図において、リング
状弾性体３にはスナップリング２との間にリング状係止
体４が重ねてあり、該係止体４は内周の複数個所をプレ
ス成形により内方へ押出して爪部41としてある。上記爪
部41の先端は弾性体３の内周面に延びている。他の構造
は上記第１の発明と同一である。By the way, it cannot be said that the elastic body 3 is deformed inwardly and falls off when a blast pressure is applied, and the second invention prevents this. That is, in FIG. 3, the ring-shaped elastic body 3 is overlapped with the ring-shaped locking body 4 with the snap ring 2, and the locking body 4 is pressed inward at a plurality of positions on the inner circumference. The claw portion 41 is extruded. The tip of the claw portion 41 extends to the inner peripheral surface of the elastic body 3. The other structure is the same as that of the first invention.
かかる構造によれば、第１の発明の効果に加えて、上記
爪部41によりバックファイア時の上記弾性体３の変形脱
落は完全に防止される。なお、係止体を設けるのに代え
てスナップリングに上記爪部を形成しても良い。According to this structure, in addition to the effect of the first invention, the claw portion 41 completely prevents the elastic body 3 from being deformed and falling off during backfire. It should be noted that the claw portion may be formed on the snap ring instead of providing the locking body.
また、整流体としては網状構造のものを使用しても良
い。A rectifying body having a mesh structure may be used.
第１図、第２図は本発明の一実施例を示し、第１図は取
付け構造の全体断面図、第２図は弾性体の斜視図、第３
図は本発明の他の実施例を示す取付け構造の全体断面
図、第４図は従来の取付け構造を示す断面図である。 １……整流体 11……下流側端面 12……上流側端面 13……空気流通孔 ２……スナップリング（リング状止め具） ３……リング状弾性体 ４……リング状係止体 41……爪部 ５……エンジン吸気管 51……段付部1 and 2 show one embodiment of the present invention, FIG. 1 is an overall sectional view of a mounting structure, FIG. 2 is a perspective view of an elastic body, and FIG.
FIG. 4 is an overall sectional view of a mounting structure showing another embodiment of the present invention, and FIG. 4 is a sectional view showing a conventional mounting structure. 1 …… Rectifier 11 …… Downstream end face 12 …… Upstream end face 13 …… Air flow hole 2 …… Snap ring (ring stopper) 3 …… Ring elastic body 4 …… Ring locking body 41 ...... Claw 5 …… Engine intake pipe 51 …… Stepped section
───────────────────────────────────────────────────── フロントページの続き (72)発明者 多加喜 亨 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 梶 恭士 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 服部 徳秀 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tokaki Toru 1-chome, Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd. (72) Kyoji Kaji 1-1-chome, Showa-cho, Kariya city, Aichi Japan Denso Co., Ltd. (72) Inventor Tokuhide Hattori 1-1, Showa-cho, Kariya city, Aichi prefecture Nihon Denso Co., Ltd.
Claims (3)
体をエンジン吸気管の途中に設け、上記整流体は下流側
端面の外周を上記エンジン吸気管の内壁段付部に当接せ
しめ、一方整流体の上流側端面の外周にはリング状弾性
体を当接せしめて、該弾性体を介してリング状止め具を
設け、該止め具により上記整流体を吸気管内壁に固定し
たことを特徴とするエンジン吸気管に設ける整流体の取
付構造。1. A rectifying body having a large number of air circulation holes formed in a lattice pattern is provided in the middle of an engine intake pipe, and the outer periphery of a downstream end face of the rectifying body is brought into contact with an inner wall step portion of the engine intake pipe. On the other hand, a ring-shaped elastic body is brought into contact with the outer periphery of the upstream end surface of the rectifying body, and a ring-shaped stopper is provided through the elastic body, and the rectifier is fixed to the inner wall of the intake pipe by the stopper. A structure for mounting a rectifying body provided on the engine intake pipe.
上記リング状弾性体の内周面に延びる爪部を形成した特
許請求の範囲第１項記載のエンジン吸気管に設ける整流
体の取付構造。2. A rectifying body provided on an engine intake pipe according to claim 1, wherein the ring-shaped stopper has a plurality of claw portions formed at a plurality of circumferential positions on the inner peripheral surface of the ring-shaped elastic body. Mounting structure.
体をエンジン吸気管の途中に設け、上記整流体は下流側
端面の外周を上記エンジン吸気管の内壁段付部に当接せ
しめ、一方整流体の上流側端面の外周にはリング状弾性
体を当接せしめるとともに、上記リング状弾性体には、
該弾性体の内周面に延びる爪部を周方向複数個所に形成
したリング状係止体を重ね、これら弾性体及び係止体を
介してリング状止め具により上記整流体を吸気管内壁に
固定したことを特徴とするエンジン吸気管に設ける整流
体の取付構造。3. A rectifying body having a large number of air circulation holes formed in a grid pattern is provided in the middle of an engine intake pipe, and the rectifying body has an outer periphery of a downstream end face abutting an inner wall step portion of the engine intake pipe. On the other hand, a ring-shaped elastic body is brought into contact with the outer periphery of the upstream end surface of the rectifying body, and the ring-shaped elastic body is
A ring-shaped locking body having a plurality of claw portions extending on the inner peripheral surface of the elastic body in the circumferential direction is superposed, and the rectifying body is attached to the inner wall of the intake pipe by a ring-shaped stopper via the elastic body and the locking body. A structure for mounting a rectifying body provided on an engine intake pipe, which is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28621986A JPH07117007B2 (en) | 1986-12-01 | 1986-12-01 | Rectifier mounting structure for the engine intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28621986A JPH07117007B2 (en) | 1986-12-01 | 1986-12-01 | Rectifier mounting structure for the engine intake pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63138151A JPS63138151A (en) | 1988-06-10 |
| JPH07117007B2 true JPH07117007B2 (en) | 1995-12-18 |
Family
ID=17701514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28621986A Expired - Lifetime JPH07117007B2 (en) | 1986-12-01 | 1986-12-01 | Rectifier mounting structure for the engine intake pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07117007B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020037820A (en) * | 2000-11-15 | 2002-05-23 | 이계안 | Device of guiding the air flow for vehicles |
| JP3726672B2 (en) * | 2000-11-21 | 2005-12-14 | トヨタ自動車株式会社 | Intake noise reduction member mounting structure for internal combustion engine |
| JP2007046470A (en) * | 2005-08-05 | 2007-02-22 | Denso Corp | Air intake system |
| JP2007303341A (en) * | 2006-05-10 | 2007-11-22 | Nippon Soken Inc | Plastic intake manifold of internal combustion engine and internal combustion engine |
-
1986
- 1986-12-01 JP JP28621986A patent/JPH07117007B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63138151A (en) | 1988-06-10 |
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