JPS6278410A - Valve seat for internal combustion engine - Google Patents
Valve seat for internal combustion engineInfo
- Publication number
- JPS6278410A JPS6278410A JP21949385A JP21949385A JPS6278410A JP S6278410 A JPS6278410 A JP S6278410A JP 21949385 A JP21949385 A JP 21949385A JP 21949385 A JP21949385 A JP 21949385A JP S6278410 A JPS6278410 A JP S6278410A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- cooling water
- ring member
- groove
- water chamber
- 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
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内燃機関用シリンダーヘッドの燃焼室吸排気バ
ルブシートに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a combustion chamber intake and exhaust valve seat of a cylinder head for an internal combustion engine.
〔従来の技術及び解決しようとする問題点〕内燃機関用
のシリンダーヘッドには燃焼室側に吸排気バルブが設け
られており、このバルブが閉じたときにバルブの放熱作
用とシリンダー内の気密性を保つために、シリンダー側
にバルブシート（弁座）が設けられている。[Prior art and problems to be solved] Cylinder heads for internal combustion engines are provided with intake and exhaust valves on the combustion chamber side, and when these valves are closed, the heat dissipation effect of the valves and the airtightness inside the cylinder are affected. In order to maintain this, a valve seat is provided on the cylinder side.
このバルブシート部は、その機能上、耐熱耐摩耗性が要
求される部位であるため、従来より、バルブシート部に
耐熱耐摩耗性の優れた材料からなる部材を嵌合させてい
る。また、このバルブシート部はエンジン性能の向上の
ために冷却性能の向上が望まれる部位でもあるので、例
えば、実開昭５９−１４１１０９号のように、シリンダ
ーヘッドのバルブシート部に段部を複数箇所形成し、こ
こにバルブシートを装着して冷却水室を内設する構造も
考案されている。Since this valve seat portion is required to have heat resistance and wear resistance due to its function, a member made of a material having excellent heat resistance and wear resistance has conventionally been fitted into the valve seat portion. In addition, this valve seat part is also a part where it is desired to improve cooling performance in order to improve engine performance. A structure has also been devised in which a cooling water chamber is installed inside by forming a valve seat and installing a valve seat there.
しかし乍ら、上記構造のタイプのバルブシートの場合、
シールリングを使用して冷却水室とのシール性を確保せ
んとするものであるが、シールリング材の劣化等により
密封性能が完全に確保でき難いという欠点があり、特に
その安全性と耐久性が厳格に要求される自動車等のエン
ジンに適用し実用化を図るうえで、問題があった。However, in the case of a valve seat with the above structure,
This method uses a seal ring to ensure sealing performance with the cooling water chamber, but it has the disadvantage that it is difficult to ensure complete sealing performance due to deterioration of the seal ring material, etc., and in particular its safety and durability. However, there were problems in trying to put it into practical use by applying it to engines such as automobiles, which have strict requirements.
本発明は、上記従来技術の欠点を解消し、冷却性能に優
れ、かつ、耐久性にも優れた内燃機関用バルブシートを
提供し、以ってエンジン性能と安全性の向上を図ること
を目的とするものである。The purpose of the present invention is to eliminate the drawbacks of the above-mentioned prior art and provide a valve seat for an internal combustion engine that has excellent cooling performance and excellent durability, thereby improving engine performance and safety. That is.
、上記目的を達成するため、本発明に係る内燃機関用バ
ルブシートは、シリンダーヘッドの燃焼室側のバルブシ
ート周りに形成した溝に、バルブとの当接面に耐摩耗性
材料を打込み、鋳ぐるみ等で所持したリング部材を嵌合
して、該溝の略底部に冷却水室を設けると共に、該リン
グ部材の嵌合端が溶接されていることを特徴とするもの
である。In order to achieve the above object, the valve seat for an internal combustion engine according to the present invention is produced by casting a wear-resistant material into the groove formed around the valve seat on the combustion chamber side of the cylinder head, on the contact surface with the valve. A cooling water chamber is provided approximately at the bottom of the groove by fitting a ring member carried around the groove, and the fitting end of the ring member is welded.
以下に本発明を図示の実施例に基づき詳述する。The present invention will be explained in detail below based on illustrated embodiments.
第１図は本発明の一実施例を示す図であり、図中、１は
シリンダーヘッド、９は吸気或いは排気用バルブである
。FIG. 1 is a diagram showing an embodiment of the present invention. In the figure, 1 is a cylinder head, and 9 is an intake or exhaust valve.
シリンダーヘッド１の燃焼室側１ｏのバルブシートの周
りには溝７が形成されてこの溝７にリング部材２が嵌入
により取付けられている。但し、リング部材２は、燃焼
室側１ｏと反対側に切り欠き部を有し、この切り欠き部
と溝７の略底部との間に環状の冷却水室８が形成されて
いる。この冷却水室８は、シリンダーヘッド１に設けた
きり六６ａ、６ｂを介して冷却水ジャケット１１に連通
されており、冷却水ジャケット１１からきり穴６ａを介
して冷却水が冷却水室８に供給され、同じくきり穴６ｂ
を介して冷却水ジャケット１１に排出されるように構成
されている。A groove 7 is formed around the valve seat on the combustion chamber side 1o of the cylinder head 1, and the ring member 2 is fitted into this groove 7. However, the ring member 2 has a notch on the side opposite to the combustion chamber side 1o, and an annular cooling water chamber 8 is formed between this notch and the approximate bottom of the groove 7. The cooling water chamber 8 is communicated with the cooling water jacket 11 through the perforations 6a and 6b provided in the cylinder head 1, and the cooling water flows from the cooling water jacket 11 into the cooling water chamber 8 through the perforations 6a. supplied and also drilled hole 6b
The cooling water is discharged to the cooling water jacket 11 through the cooling water jacket 11.
シリンダーヘッドおよびリング部は互いに溶接可能な金
属材からなり、リング部材２のバルブとの当接部にのみ
耐摩耗性材料を紡グルミ又は打ち込みにより配備されて
いる。The cylinder head and the ring portion are made of a metal material that can be welded to each other, and a wear-resistant material is provided only at the contact portion of the ring member 2 with the valve by spun gluing or hammering.
また、前記冷却水室８の燃焼室側のシール性は、リング
部材とシリンダーヘッドとの嵌合部を突合せ溶接、肉盛
溶接などの適宜の溶接により溶接した溶接部４．５によ
り確保される。Further, the sealing performance of the cooling water chamber 8 on the combustion chamber side is ensured by a welded portion 4.5 in which the fitting portion of the ring member and the cylinder head is welded by appropriate welding such as butt welding or overlay welding. .
本発明においては、前述のとおり、シリンダーヘッドと
リング部材との嵌合によって冷却水室を形成し、そのシ
ールを溶接によって確保しているため、冷却水室を燃焼
室側に接近して設けることができ、したがって冷却効率
を上げることができる。他の本発明の大きな作用効果は
、バルブシートのとの当接部にのみ耐摩耗性材料を使用
するため、バルブシート全体の材料費を低く抑えること
ができることである。In the present invention, as described above, the cooling water chamber is formed by fitting the cylinder head and the ring member, and the seal is secured by welding, so the cooling water chamber cannot be provided close to the combustion chamber side. , thus increasing cooling efficiency. Another great effect of the present invention is that since wear-resistant material is used only in the abutting portion of the valve seat, the material cost for the entire valve seat can be kept low.
以上説明したように、本発明によれば、バルブシート部
の冷却性能が大幅に向上できるので、ノッキング等を防
止でき、エンジンの性能の向上が可能となり、また、バ
ルブシート部材料として耐熱性の要求値を下げることが
でき、しかもバルブとの当接面にのみ耐摩耗性に優れた
材料を使用すればよいので、安価な材料を使用できる。As explained above, according to the present invention, the cooling performance of the valve seat part can be greatly improved, so knocking etc. can be prevented and engine performance can be improved. The required value can be lowered, and since it is only necessary to use a material with excellent wear resistance on the contact surface with the valve, inexpensive materials can be used.
更には、バルブシート部に冷却水室が設置される構造に
おいて溶接により密封するので、シール性が向上でき、
安全性を向上することができる。Furthermore, since the structure in which the cooling water chamber is installed in the valve seat is sealed by welding, the sealing performance can be improved.
Safety can be improved.
第１図は本発明の一実施例を示す断面図である。
１・・・シリンダーヘッド、２・・・リング部材、３・
・・耐摩耗性材料（部材）、４．５・・・溶接部、６ａ
、６ｂ・・・きり穴、７・・・溝、８・・・冷却水室、
９・・・バルブ、１０・・・燃焼室側、１１・・・冷却
水ジャケット。FIG. 1 is a sectional view showing one embodiment of the present invention. 1... Cylinder head, 2... Ring member, 3...
... Wear-resistant material (member), 4.5... Welded part, 6a
, 6b...Drill hole, 7...Groove, 8...Cooling water chamber,
9... Valve, 10... Combustion chamber side, 11... Cooling water jacket.
Claims (1)
トにおいて、該シリンダーヘッドの燃焼室側のバルブシ
ート周りに形成した溝に、バルブとの当接面に耐摩耗性
材料を所持したリング部材を嵌合して、該溝の略底部に
冷却水室を設けると共に、該リング部材の嵌合端が溶接
されていることを特徴とする内燃機関用バルブシート。In a combustion chamber intake and exhaust valve seat of a cylinder head for an internal combustion engine, a ring member having a wear-resistant material on the contact surface with the valve is fitted into a groove formed around the valve seat on the combustion chamber side of the cylinder head. A valve seat for an internal combustion engine, characterized in that a cooling water chamber is provided substantially at the bottom of the groove, and a fitting end of the ring member is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21949385A JPS6278410A (en) | 1985-10-02 | 1985-10-02 | Valve seat for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21949385A JPS6278410A (en) | 1985-10-02 | 1985-10-02 | Valve seat for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6278410A true JPS6278410A (en) | 1987-04-10 |
Family
ID=16736310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21949385A Pending JPS6278410A (en) | 1985-10-02 | 1985-10-02 | Valve seat for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116211A (en) * | 2009-11-05 | 2011-07-06 | 通用汽车环球科技运作公司 | Cylinder head assembly for an internal combustion engine and method of manufacturing the same |
-
1985
- 1985-10-02 JP JP21949385A patent/JPS6278410A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116211A (en) * | 2009-11-05 | 2011-07-06 | 通用汽车环球科技运作公司 | Cylinder head assembly for an internal combustion engine and method of manufacturing the same |
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