JPH0291431A - Throttle valve body - Google Patents
Throttle valve bodyInfo
- Publication number
- JPH0291431A JPH0291431A JP24309488A JP24309488A JPH0291431A JP H0291431 A JPH0291431 A JP H0291431A JP 24309488 A JP24309488 A JP 24309488A JP 24309488 A JP24309488 A JP 24309488A JP H0291431 A JPH0291431 A JP H0291431A
- Authority
- JP
- Japan
- Prior art keywords
- passage
- butterfly valve
- throttle valve
- metal ring
- resin
- 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.)
- Granted
Links
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M15/00—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture
- F02M15/02—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture with heating means, e.g. to combat ice-formation
- F02M15/022—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture with heating means, e.g. to combat ice-formation near to manually operated throttle valve
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、内燃機関のスロットルバルブボディに関し、
殊に、樹脂製のボディに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a throttle valve body for an internal combustion engine;
In particular, it relates to a body made of resin.
従来の技術
内燃機関のスロットルバルブボディは、従来アルミダイ
キャストにて製造されていたが、アルミダイキャストの
場合、鋳ばなしでは精度がでないため後加工が必要であ
る。また、ダイギヤストは、すが出来やすく気密性が劣
るため、目止め処理が必要であること等の問題があった
。Conventional Technology Throttle valve bodies for internal combustion engines have conventionally been manufactured by aluminum die-casting, but in the case of aluminum die-casting, post-processing is required because precision is not achieved without casting. Furthermore, since diegeast tends to form cracks and has poor airtightness, there are problems such as the need for sealing treatment.
よって、加工のしやすさとコストダウンを図るこトモ含
めて、スロットルバルブボディの樹脂化の検討がされて
きた。Therefore, consideration has been given to using resin for the throttle valve body, with the aim of making it easier to process and reducing costs.
発明が解決しようとする課題 しかしながら、樹脂製のスロットルバルブボディでは。Problems that the invention aims to solve However, with a resin throttle valve body.
（１）高温下での使用によってボディの寸法収、縮が生
じる。円筒のボディ内には、円板状のバタフライバルブ
が配設さ゛れており、該バルブを円筒の径方向の軸の回
りに回転させて流葺コントロールを行なうが、前記寸法
収縮によってバタフライバルブの周縁がボディ内面に圧
接した状態となり、バタフライバルブの回転が出来なく
なる危険がある。(1) Dimensional shrinkage of the body occurs due to use at high temperatures. A disc-shaped butterfly valve is disposed inside the cylindrical body, and the valve is rotated around the radial axis of the cylinder to control the flow, but due to the dimensional contraction, the periphery of the butterfly valve There is a risk that the butterfly valve will be in pressure contact with the inner surface of the body, and the butterfly valve will not be able to rotate.
（２）外気温度が低い場合、アイシングによるバタフラ
イバルブとボディ内面の固着を防止するため、ボディ外
側から加熱を行なうが、樹脂の熱伝導率が金属に比べて
小さいため、アイシング防止効果が小さい。(2) When the outside temperature is low, heating is performed from the outside of the body to prevent the butterfly valve from sticking to the inner surface of the body due to icing, but since the thermal conductivity of resin is lower than that of metal, the effect of preventing icing is small.
本発明は、上記の点に鑑み、スロットルバルブボディの
樹脂化を図ると共に、特にバタフライバルブ配設部分の
加熱による寸法収縮を抑えたスロットルバルブボディを
提供することを目的とする。また、本発明は、前記目的
に加えて、アイシング防止を確実に行なえる樹脂製のス
ロットルバルブボディを提供することも目的とする０
課題を解決するための手段
上記目的を達成するために、本発明は、円筒のスロット
ルバルブボディを樹脂で形成してなり、バタフライバル
ブ配設部分のボディ内周面を樹脂中にインサートした金
属リングの内周面で構成した点に特徴を有する０
また、樹脂製のボディ肉厚部に加熱流体の通路を形成し
、該通路に前記金ｆｉ ＩＪングの少なくとも一部分を
露出させた点に特徴を有する。In view of the above points, it is an object of the present invention to provide a throttle valve body that is made of resin, and in which dimensional shrinkage due to heating, particularly in the portion where the butterfly valve is disposed, is suppressed. In addition to the above object, it is also an object of the present invention to provide a throttle valve body made of resin that can reliably prevent icing. The invention is characterized in that the cylindrical throttle valve body is made of resin, and the inner circumferential surface of the body in the part where the butterfly valve is installed is made of the inner circumferential surface of a metal ring inserted into the resin. The present invention is characterized in that a passage for heating fluid is formed in the thick part of the body, and at least a portion of the gold fi IJ ring is exposed in the passage.
作用
本発明においては、バタフライバルブ配設部分のボディ
内局面を金属リングの内周面で構成している。金属リン
グの存在により、この部分の加熱による寸法収縮を抑制
し、ボディ内周面のバタフライバルブ周縁への圧接防止
を図ることが出来る。Function: In the present invention, the inner surface of the body of the butterfly valve disposed portion is constituted by the inner circumferential surface of the metal ring. Due to the presence of the metal ring, it is possible to suppress dimensional shrinkage due to heating of this part and prevent the inner circumferential surface of the body from coming into pressure contact with the periphery of the butterfly valve.
また、金属リングは、熱の伝導が樹脂に比べてよく、そ
の少なくとも一部分がボディ肉厚部に形成した加熱流体
の通路に露出しているので、加熱流体の熱をバタフライ
バルブ配設部分に良好に伝えて、アイシング防止を図れ
る。In addition, the metal ring conducts heat better than resin, and at least a portion of the metal ring is exposed to the heating fluid passage formed in the thick part of the body, so the heat of the heating fluid is transferred to the butterfly valve installation area. This can be done to prevent icing.
実施例 次に、本発明の詳細な説明する。Example Next, the present invention will be explained in detail.
第１図において、ｌは樹脂製の円筒状スロットルバルブ
ボディであり、ガラス繊維強化フェノール樹脂で成形し
である。ボディ１内には、円筒の径方向の軸２の回りに
回転する円板状のバタフライバルブ３が配設されるが、
この配設部分のボディ１の内周面を真鍮展の金属リング
４の内周面で構成する。金属リング４は、インサート成
形により、ボディ１と一体化されている。In FIG. 1, 1 is a cylindrical throttle valve body made of resin, and is molded from glass fiber reinforced phenolic resin. A disc-shaped butterfly valve 3 that rotates around a cylindrical radial axis 2 is disposed within the body 1.
The inner circumferential surface of the body 1 in this disposed portion is constituted by the inner circumferential surface of a metal ring 4 made of brass. The metal ring 4 is integrated with the body 1 by insert molding.
金１１Ｊング４に２岨厚のものを用いた場合、耐熱試験
（１５０℃、５００時間）におけるボディｌの内径（φ
５５Ｍ）の寸法収縮は、０．０２ｍｍであった。一方、
金属リングなしの場合は、同寸法収縮がＯ，１ｍｍであ
った。この例では、バタフライバルブ３を閉じたとき、
バタフライバルブ３の周縁とボディｌ内周面との間の必
要なりリアランスは０．０５ｍｍであり、ボディ１とし
ては寸法収縮を０．０３ｎ＋ｎ＋以下に抑えなければな
らないが、本実施例で寸法安定性の効果を確認できた。When a gold 11J ring 4 with a thickness of 2 mm is used, the inner diameter of the body l (φ
The dimensional shrinkage of 55M) was 0.02 mm. on the other hand,
In the case without the metal ring, the same dimensional shrinkage was 0.1 mm. In this example, when butterfly valve 3 is closed,
The necessary clearance between the periphery of the butterfly valve 3 and the inner circumferential surface of the body 1 is 0.05 mm, and the dimensional shrinkage of the body 1 must be suppressed to 0.03n+n+ or less, but in this example, the dimensional stability is We were able to confirm the effect of
閘、金属リング４の肉厚を０．８ｍｍとしたときの寸法
収縮は、０．０５ｍｍであり、実際の使用における寸法
収縮の許容範囲内で、金、ＩＩ ＩＪング４の肉厚を適
宜設定すればよい。When the wall thickness of the lock and metal ring 4 is 0.8 mm, the dimensional shrinkage is 0.05 mm, and the wall thickness of the gold, II IJ ring 4 is set appropriately within the allowable range of dimensional shrinkage in actual use. do it.
また、ボディ１の肉厚部に加熱流体の通路５を設け、こ
の通路に、金４リング４の外周面の一部を露出させた。Further, a heating fluid passage 5 was provided in the thick part of the body 1, and a part of the outer peripheral surface of the gold ring 4 was exposed to this passage.
この露出部分から、加熱流体の熱が金属リング４全体に
良好に、伝わり、アイシングによるバタフライバルブ３
のロックを防ぐことが出来る。From this exposed part, the heat of the heated fluid is well transmitted to the entire metal ring 4, and the butterfly valve 3 due to icing
can be prevented from locking.
第２図は、他の実施例を示し、金属リング４の外周面に
設けた凸部６を通路６中に配設している。この場合、金
属リング４の本体は、ボディ１中に埋設されており、加
熱流体が、金属リング４とボディｌを構成する樹脂の間
のわずかの隙間からボディｌ内に漏れるのを確実ニ防止
する上で効果的である。同、熱の伝導性の点では、第１
図に示したものと変りはない。FIG. 2 shows another embodiment, in which a convex portion 6 provided on the outer peripheral surface of the metal ring 4 is disposed in the passage 6. In this case, the main body of the metal ring 4 is embedded in the body 1 to ensure that the heated fluid is prevented from leaking into the body l through a small gap between the metal ring 4 and the resin that constitutes the body l. It is effective in doing so. Similarly, in terms of thermal conductivity, it is the first
There is no difference from what is shown in the figure.
バタフライバルブ３と金属リング４を同一材料で構成す
ることにより、高温時のクリアランス精度を高める上で
一層好都合となる。By constructing the butterfly valve 3 and the metal ring 4 from the same material, it is more convenient to improve the clearance accuracy at high temperatures.
発明の効果
上述のように、本発明は、樹脂製のスロットルバルブボ
ディにおいて、バタフライバルブ配役部分のボディ内周
面を金属リングの内周面で構成したものである。この金
属リングの存在により、樹脂の加熱による寸法収縮を抑
制し、バタフライバルブの円滑な作動を確保することが
出来る。Effects of the Invention As described above, the present invention provides a throttle valve body made of resin, in which the inner circumferential surface of the body in the butterfly valve mounting portion is constituted by the inner circumferential surface of a metal ring. The presence of this metal ring can suppress dimensional shrinkage due to heating of the resin and ensure smooth operation of the butterfly valve.
また、ボディ肉厚部に形成した加熱流体の通路に金属リ
ングの少なくとも一部を露出させて、金属リング全体へ
の熱の伝導を良くしているので、アイシングによるバタ
フライバルブのロックも回避出来る。In addition, at least a portion of the metal ring is exposed to the heated fluid passage formed in the thick part of the body to improve heat conduction to the entire metal ring, so it is possible to avoid locking of the butterfly valve due to icing.
第１図、第２図は本発明の実施例を示す断面図である。
ｌはスロットルバルブボディ、２は軸、３はバタフライ
バルブ、４は金属リング、５は通路、６は凸部。FIGS. 1 and 2 are cross-sectional views showing embodiments of the present invention. l is the throttle valve body, 2 is the shaft, 3 is the butterfly valve, 4 is the metal ring, 5 is the passage, and 6 is the convex part.
Claims (1)
、該バルブを円筒の径方向の軸の回りに回転させて流量
コントロールを行なうスロットルバルブにおいて、円筒
のボディを樹脂で形成してなり、バタフライバルブ配設
部分のボディ内周面を樹脂中にインサートした金属リン
グの内周面で構成したスロットルバルブボディ。 ２、ボディの肉厚部に加熱流体の通路を形成し、金属リ
ングの少なくとも一部分を前記通路に露出させた請求項
１記載のスロットルバルブボディ。 ３、ボディの肉厚部に加熱流体の通路を形成し、金属リ
ングの外周面に設けた凸部を前記通路に露出させた請求
項１記載のスロットルバルブボディ。[Claims] 1. A throttle valve that includes a disc-shaped butterfly valve inside a cylindrical body and controls the flow rate by rotating the valve around an axis in the radial direction of the cylinder, in which the cylindrical body is made of resin. The throttle valve body consists of the inner circumferential surface of the body where the butterfly valve is installed, and the inner circumferential surface of the metal ring inserted into the resin. 2. The throttle valve body according to claim 1, wherein a passage for heating fluid is formed in a thick portion of the body, and at least a portion of the metal ring is exposed to the passage. 3. The throttle valve body according to claim 1, wherein a passage for heating fluid is formed in a thick portion of the body, and a convex portion provided on the outer peripheral surface of the metal ring is exposed to the passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63243094A JPH0751902B2 (en) | 1988-09-28 | 1988-09-28 | Throttle valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63243094A JPH0751902B2 (en) | 1988-09-28 | 1988-09-28 | Throttle valve body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0291431A true JPH0291431A (en) | 1990-03-30 |
| JPH0751902B2 JPH0751902B2 (en) | 1995-06-05 |
Family
ID=17098700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63243094A Expired - Lifetime JPH0751902B2 (en) | 1988-09-28 | 1988-09-28 | Throttle valve body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751902B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317241U (en) * | 1989-06-30 | 1991-02-20 | ||
| DE4202437A1 (en) * | 1991-01-29 | 1992-07-30 | Hitachi Ltd | THROTTLE VALVE ASSEMBLY |
| DE19625154C1 (en) * | 1996-06-24 | 1997-11-27 | Audi Ag | Device for heating movable control component for internal combustion engine |
| US5704335A (en) * | 1995-07-14 | 1998-01-06 | Nippondenso Co., Ltd. | Throttle valve apparatus for internal combustion engine |
| US6408817B2 (en) | 2000-02-16 | 2002-06-25 | Denso Corporation | Throttle body for an internal combustion engine and its manufacturing method and a throttle apparatus using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4508386B2 (en) * | 2000-09-04 | 2010-07-21 | 株式会社ミクニ | Intake control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6133943U (en) * | 1984-07-31 | 1986-03-01 | 株式会社 京浜精機製作所 | Stop screw device for synthetic resin vaporizer |
| JPS62228652A (en) * | 1986-03-31 | 1987-10-07 | Keihin Seiki Mfg Co Ltd | Rotary shaft for carburetor |
-
1988
- 1988-09-28 JP JP63243094A patent/JPH0751902B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6133943U (en) * | 1984-07-31 | 1986-03-01 | 株式会社 京浜精機製作所 | Stop screw device for synthetic resin vaporizer |
| JPS62228652A (en) * | 1986-03-31 | 1987-10-07 | Keihin Seiki Mfg Co Ltd | Rotary shaft for carburetor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317241U (en) * | 1989-06-30 | 1991-02-20 | ||
| DE4202437A1 (en) * | 1991-01-29 | 1992-07-30 | Hitachi Ltd | THROTTLE VALVE ASSEMBLY |
| US5188078A (en) * | 1991-01-29 | 1993-02-23 | Hitachi, Ltd. | Throttle valve assembly |
| DE4202437C2 (en) * | 1991-01-29 | 1994-09-08 | Hitachi Ltd | Throttle assembly |
| US5704335A (en) * | 1995-07-14 | 1998-01-06 | Nippondenso Co., Ltd. | Throttle valve apparatus for internal combustion engine |
| DE19625154C1 (en) * | 1996-06-24 | 1997-11-27 | Audi Ag | Device for heating movable control component for internal combustion engine |
| US6408817B2 (en) | 2000-02-16 | 2002-06-25 | Denso Corporation | Throttle body for an internal combustion engine and its manufacturing method and a throttle apparatus using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751902B2 (en) | 1995-06-05 |
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