JPH021475Y2 - - Google Patents
Info
- Publication number
- JPH021475Y2 JPH021475Y2 JP1983129797U JP12979783U JPH021475Y2 JP H021475 Y2 JPH021475 Y2 JP H021475Y2 JP 1983129797 U JP1983129797 U JP 1983129797U JP 12979783 U JP12979783 U JP 12979783U JP H021475 Y2 JPH021475 Y2 JP H021475Y2
- Authority
- JP
- Japan
- Prior art keywords
- baseboard
- hot water
- water heating
- heating passage
- intake manifold
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 5
- 238000003754 machining Methods 0.000 description 9
- 238000005266 casting Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は吸気マニホルドに係り、特に温水加
熱通路の壁部に形成された幅木孔をセンサ取付孔
として利用し、機械加工のみならず部品点数の削
減を図り得る吸気マニホルドに関する。[Detailed explanation of the invention] [Industrial application field] This invention relates to an intake manifold, and in particular uses a baseboard hole formed in the wall of a hot water heating passage as a sensor mounting hole, and is used not only for machining but also for parts. This invention relates to an intake manifold that can reduce the number of points.
内燃機関の吸気系においては、混合気の完全霧
化を行い、これを各シリンダーに均一に分配して
機関性能を良好に維持することが望ましい。しか
し、特に低温始動時には、機関が冷態にあり、供
給される燃料も微量であるためエンジン不調を招
き易い。そこで、燃焼室で混合気の気化の促進を
図るために、吸気マニホルドの一部を温水熱で加
熱する温水加熱通路を有する温水加熱式の吸気マ
ニホルドを設けている。
In the intake system of an internal combustion engine, it is desirable to completely atomize the air-fuel mixture and distribute it uniformly to each cylinder to maintain good engine performance. However, especially when starting at a low temperature, the engine is in a cold state and only a small amount of fuel is supplied, which tends to cause engine malfunction. Therefore, in order to promote vaporization of the air-fuel mixture in the combustion chamber, a hot water heating type intake manifold is provided which has a hot water heating passage that heats a part of the intake manifold with hot water heat.
ところで、温水加熱式の吸気マニホルドを製造
する際に、温水加熱通路用中子には、この温水加
熱通路用中子を鋳型内の所要位置に保持させるた
めに、温水加熱通路用中子に幅木を突出させて形
成している。このため、鋳造後に、温度加熱通路
用中子及び幅木を除去することによつて、温水加
熱通路を形成する壁部には幅木孔が形成される。
そこで、従来、第２図に示す如く、鋳造後に、壁
部８に形成された幅木孔１０を、先ず、機械加工
し、用済後は、栓１６を打込むことにより閉塞し
ていた。従つて、幅木孔１０を機械加工したり、
また、幅木孔を閉塞する栓１６が必要となるの
で、加工作業や部品点数が増大する不都合があ
る。
By the way, when manufacturing a hot water heating type intake manifold, the core for the hot water heating passage has a width in order to hold the core for the hot water heating passage in the required position in the mold. It is formed by protruding trees. Therefore, by removing the temperature heating passage core and baseboard after casting, a baseboard hole is formed in the wall portion forming the hot water heating passage.
Therefore, conventionally, as shown in FIG. 2, after casting, the baseboard hole 10 formed in the wall portion 8 was first machined, and then plugged with a plug 16 after use. Therefore, by machining the baseboard holes 10,
Furthermore, since a plug 16 is required to close the baseboard hole, there is a problem that processing work and the number of parts increase.
また、壁部８には、むくのボス１８を付設し、
このボス１８にねじ孔２０を刻設して機関温度を
検知する温度センサ等の取付部品１４を螺着して
いた。このため、ボス１８を新たに設けるととも
に、このボス１８にねじ加工しなければならず、
その組付工数や部品点数が増大する等で製作コス
トが高くなる不都合があつた。 In addition, a solid boss 18 is attached to the wall portion 8,
A screw hole 20 is formed in this boss 18, and a mounting part 14 such as a temperature sensor for detecting engine temperature is screwed into the boss 18. For this reason, it is necessary to newly provide the boss 18 and to machine the boss 18 with threads.
This has the disadvantage of increasing manufacturing costs due to increased assembly man-hours and increased number of parts.
そこでこの考案の目的は、上述の不都合を除去
すべく、幅木を除去することによつて温水加熱通
路の壁部に形成された幅木孔をセンサ取付孔とす
ることにより、幅木孔を閉塞する栓や、センサ等
の取付部品の取付け用ボスを不要とし、部品点数
の低減を図るとともに、幅木孔の機械加工や、ボ
スのねじ加工を省略し、取付部品の組付工数を削
減して製作コストの低廉を図る得る吸気マニホル
ドを実現するにある。
Therefore, the purpose of this invention is to eliminate the above-mentioned inconvenience by using the baseboard hole formed in the wall of the hot water heating passage by removing the baseboard as a sensor mounting hole. Eliminates the need for plugs to block or bosses for attaching attachment parts such as sensors, reducing the number of parts, as well as omitting machining of baseboard holes and screw machining of bosses, reducing man-hours for assembling attachment parts. The object of the present invention is to realize an intake manifold that can reduce manufacturing costs.
この目的を達成するためにこの考案は、温水加
熱通路用中子を幅木により鋳型内の所要位置に保
持させこの鋳型に溶融金属を流し込んで壁部を形
成し、この壁部によつて形成された温水加熱通路
を有する吸気マニホルドにおいて、前記温水加熱
通路を形成する壁部に前記幅木を除去することに
よつて形成される幅木孔をセンサ取付孔としたこ
とを特徴とする。
In order to achieve this objective, this invention holds the core for the hot water heating passage in a predetermined position in the mold using a skirting board, pours molten metal into this mold to form a wall, and uses this wall to form a wall. In the intake manifold having a hot water heating passage, a baseboard hole formed by removing the baseboard in a wall portion forming the hot water heating passage is used as a sensor mounting hole.
この考案の構成によれば、吸気マニホルドを鋳
造により製作する際に、温水加熱通路用中子を幅
木により鋳型内の所要位置に保持させ、鋳型に溶
融金属を流し込んで、温水加熱通路の壁部を形成
する。そして、幅木を除去することによつて壁部
には幅木孔が残つて形成されるので、壁部に形成
された幅木孔をセンサの取付孔として利用する。
これにより、幅木孔の機械加工や部品点数の削減
を図ることができる。
According to the configuration of this invention, when manufacturing the intake manifold by casting, the core for the hot water heating passage is held at a predetermined position in the mold by the baseboard, and molten metal is poured into the mold to form the wall of the hot water heating passage. form a section. Then, by removing the baseboard, a baseboard hole is left in the wall, and the baseboard hole formed in the wall is used as a mounting hole for the sensor.
This makes it possible to machine the baseboard holes and reduce the number of parts.
以下図面に基づいてこの考案の実施例を詳細且
つ具体的に説明する。
Embodiments of this invention will be described in detail and concretely below based on the drawings.
第１図は、この考案の実施例を示すものであ
る。図において、２は温水加熱式の吸気マニホル
ドである。この吸気マニホルド２は、多岐部４
と、温水加熱通路６を形成すべく多岐部４に連設
した壁部８とを有している。多岐部４は、第１分
岐路４−１、第２分岐路４−２、第３分岐路４−
３からなる。壁部８で形成された温水加熱通路６
には機関熱により加温された機関冷却水である温
水を流入させ、この温水熱によつて多岐部４を加
熱させて混合気の気化の促進を図るものである。 FIG. 1 shows an embodiment of this invention. In the figure, 2 is a hot water heating type intake manifold. This intake manifold 2 has a manifold section 4
and a wall portion 8 connected to the diverging portion 4 to form a hot water heating passage 6. The diverging section 4 includes a first branch road 4-1, a second branch road 4-2, and a third branch road 4-.
Consists of 3. Hot water heating passage 6 formed by wall portion 8
Warm water, which is engine cooling water heated by engine heat, is allowed to flow into the engine, and the diverging portion 4 is heated by the heat of the hot water to promote vaporization of the air-fuel mixture.
前記吸気マニホルド２を鋳造で製作する際に、
図示しないが、温水加熱通路用中子に突出して形
成した幅木により温水加熱通路用中子を鋳型内の
所要位置に保持させ、鋳型に溶融金属を流し込ん
で、温水加熱通路６の壁部８を形成する。そし
て、鋳造後に、幅木を除去することによつて壁部
８には、幅木孔１０が残つて形成される。 When manufacturing the intake manifold 2 by casting,
Although not shown, the core for the hot water heating passage is held at a predetermined position in the mold by a baseboard formed protruding from the core for the hot water heating passage, and the molten metal is poured into the mold, and the wall portion 8 of the hot water heating passage 6 is form. After casting, by removing the baseboard, a baseboard hole 10 remains in the wall portion 8 and is formed.
ところで、内燃機関においては、機関運転状態
を温度で制御する装置があり、温度状態により吸
気あるいは排気量を制御して機関性能を向上させ
ている。 By the way, in internal combustion engines, there is a device that controls the engine operating state by temperature, and the engine performance is improved by controlling the amount of intake air or exhaust air depending on the temperature state.
ところが、従来、機関温度を検知する温度セン
サは、温水加熱通路６の壁部８に付設したボス等
の取付具に取付けられていた。 However, conventionally, a temperature sensor for detecting engine temperature has been attached to a fixture such as a boss attached to the wall 8 of the hot water heating passage 6.
しかし、この実施例においては、壁部８に形成
された幅木孔１０をねじ加工し、形成されたねじ
孔１２に温度センサを螺着する。 However, in this embodiment, the baseboard hole 10 formed in the wall portion 8 is threaded, and the temperature sensor is screwed into the formed threaded hole 12.
即ち、幅木孔１０を温度センサ等の取付部品１
４のセンサ取付孔として利用し、幅木孔１０を栓
等の蓋部で閉塞したり、取付部品１４を取付ける
ためのボスやそのボスにねじ加工する等の加工作
業を省略して組付工数の削減を図ることができ
る。 That is, the baseboard hole 10 is connected to the mounting part 1 such as a temperature sensor.
4 as the sensor mounting hole, and omit the machining work such as closing the baseboard hole 10 with a cover such as a stopper, or machining a boss for attaching the mounting part 14 and threading the boss, thereby reducing assembly man-hours. It is possible to reduce the amount of
この結果、部品点数を減少してコスト低減を図
り、また、製作コストも低廉させることができ
る。 As a result, the number of parts can be reduced to reduce costs, and manufacturing costs can also be reduced.
なお、上述の実施例においては、幅木孔１０に
取付部品１４として温度センサを設けたが、この
取付部品１４として上述センサ以外の部品の取付
が可能なことは勿論である。 In the above-described embodiment, a temperature sensor was provided in the baseboard hole 10 as the attachment part 14, but it is of course possible to attach parts other than the above-mentioned sensor as the attachment part 14.
以上詳細な説明から明らかなようにこの考案に
よれば、吸気マニホルドを鋳造により製作する際
に、温水加熱通路用中子を幅木により鋳型内の所
要位置に保持させ、鋳型に溶融金属を流し込ん
で、温水加熱通路の壁部を形成し、そして、幅木
を除去することによつて壁部には幅木孔が残つて
形成されるので、壁部に形成された幅木孔をセン
サの取付孔として利用したことにより、鋳造後に
幅木孔を機械加工して栓をする等の作業および部
品を必要とせず、また、取付部品を取付けるため
の取付け用ボスやこのボスへのねじ加工をする必
要がなくなる。
As is clear from the detailed explanation above, according to this invention, when producing an intake manifold by casting, the core for the hot water heating passage is held at a predetermined position in the mold by a baseboard, and molten metal is poured into the mold. Then, by forming the wall of the hot water heating passage and removing the baseboard, a baseboard hole is left in the wall, so the baseboard hole formed in the wall is used for the sensor. By using it as a mounting hole, there is no need for work or parts such as machining and plugging the baseboard hole after casting, and there is no need for mounting bosses to attach mounting parts or threading to these bosses. There is no need to do so.
この結果、壁部への機械加工を省略し得るとと
もに、部品点数の減少を図ることができ、組付工
数を削減して製作コストの低廉を図ることがで
き、しかも加工増大によりマニホルドの弱体化を
防止し得る。 As a result, machining of the wall can be omitted, the number of parts can be reduced, assembly man-hours can be reduced, and manufacturing costs can be lowered, and the increased machining can weaken the manifold. can be prevented.
第１図はこの考案の実施例を示し、吸気マニホ
ルドの主要部概略断面図である。第２図は従来の
吸気マニホルドの主要部概略断面図である。
図において、２は吸気マニホルド、４は多岐
部、６は温水加熱通路、８は壁部、１０は幅木
孔、１２はねじ孔、そして１４は取付部品であ
る。
FIG. 1 shows an embodiment of this invention, and is a schematic sectional view of the main parts of the intake manifold. FIG. 2 is a schematic sectional view of the main parts of a conventional intake manifold. In the figure, 2 is an intake manifold, 4 is a manifold, 6 is a hot water heating passage, 8 is a wall, 10 is a baseboard hole, 12 is a screw hole, and 14 is a mounting part.
Claims (1)
位置に保持させこの鋳型に溶融金属を流し込んで
壁部を形成し、この壁部によつて形成された温水
加熱通路を有する吸気マニホルドにおいて、前記
温水加熱通路を形成する壁部に前記幅木を除去す
ることによつて形成される幅木孔をセンサ取付孔
としたことを特徴とする吸気マニホルド。 In an intake manifold having a hot water heating passage formed by a wall portion formed by holding a hot water heating passage core at a predetermined position in a mold by a baseboard and pouring molten metal into the mold, An intake manifold characterized in that a baseboard hole formed by removing the baseboard in a wall portion forming the hot water heating passage is used as a sensor mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12979783U JPS6038156U (en) | 1983-08-24 | 1983-08-24 | intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12979783U JPS6038156U (en) | 1983-08-24 | 1983-08-24 | intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6038156U JPS6038156U (en) | 1985-03-16 |
| JPH021475Y2 true JPH021475Y2 (en) | 1990-01-16 |
Family
ID=30293981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12979783U Granted JPS6038156U (en) | 1983-08-24 | 1983-08-24 | intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038156U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2630812B1 (en) * | 1988-04-28 | 1990-08-31 | Sgn Soc Gen Tech Nouvelle | IMPROVEMENT IN POST-COMBUSTION CHAMBERS |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238521B2 (en) * | 1972-10-23 | 1977-09-29 | ||
| JPS574833A (en) * | 1980-06-09 | 1982-01-11 | Iseki & Co Ltd | Charging device in grain reserving tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238521U (en) * | 1975-09-11 | 1977-03-18 |
-
1983
- 1983-08-24 JP JP12979783U patent/JPS6038156U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238521B2 (en) * | 1972-10-23 | 1977-09-29 | ||
| JPS574833A (en) * | 1980-06-09 | 1982-01-11 | Iseki & Co Ltd | Charging device in grain reserving tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6038156U (en) | 1985-03-16 |
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