JPH089965B2 - Valve for internal combustion engine - Google Patents
Valve for internal combustion engineInfo
- Publication number
- JPH089965B2 JPH089965B2 JP61157630A JP15763086A JPH089965B2 JP H089965 B2 JPH089965 B2 JP H089965B2 JP 61157630 A JP61157630 A JP 61157630A JP 15763086 A JP15763086 A JP 15763086A JP H089965 B2 JPH089965 B2 JP H089965B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- internal combustion
- combustion engine
- weight
- alloy
- 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 - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は内燃機関において使用されるバルブの改良に
関するものである。TECHNICAL FIELD The present invention relates to an improvement of a valve used in an internal combustion engine.
（従来技術） 内燃機関のバルブに於いて、従来はバルブシートと接
するフエース部にはSUH系耐熱耐摩合金の鍛造材、バル
ブガイド内を摺動するストレート部には合金鋼の棒材を
用い、溶接にて接合している。(Prior Art) In a valve of an internal combustion engine, a SUH heat-resistant and wear-resistant alloy forged material is conventionally used for the face portion in contact with the valve seat, and an alloy steel bar is used for the straight portion sliding in the valve guide. It is joined by welding.
（発明が解決しようとする問題点） 内燃機関のバルブは機関の回転数に応じたサイクルで
燃料の吸気あるいは排気の開閉のために上下運動を繰り
返すが、従来この種のバルブはフエース部からストレー
ト部に至るまで全て鉄系合金（あるいは一部Co合金使
用）から成るので、重量が大きく、運転時の慣性重量が
大きくなり、高速追随性に制約が生じるという問題があ
る。(Problems to be Solved by the Invention) A valve of an internal combustion engine repeats a vertical movement for opening and closing fuel intake or exhaust in a cycle according to the number of revolutions of the engine. Conventionally, this type of valve is straight from the face portion. Since all the parts are made of an iron-based alloy (or a part of Co alloy is used), there is a problem that the weight is large, the inertial weight during operation is large, and the high-speed followability is restricted.
上記に鑑み、本発明はこのような問題点を解消するた
め開発されたものである。以下に本発明を詳細に説明す
る。In view of the above, the present invention was developed to solve such problems. The present invention will be described in detail below.
（問題点を解決するための手段） 即ち本発明の内燃機関用バルブは、バルブガイド内を
摺動するストレート部が粉末冶金法で製造したアルミニ
ウム合金から形成され、バルブシートと接する、耐熱耐
摩耗合金から形成されるフエース部に接合されて構成さ
れたことを特徴とするものである。(Means for Solving the Problems) That is, in the valve for an internal combustion engine of the present invention, the straight portion sliding in the valve guide is formed of an aluminum alloy manufactured by a powder metallurgy method and is in contact with the valve seat. It is characterized by being joined to a face portion formed of an alloy.
（作用） バルブの慣性重量低減のためストレート部をアルミニ
ウム合金にて構成する。アルミニウム合金は粉末冶金法
で製造する。第１図はこの本発明の具体例であつて、
（１）はフエース部で耐熱合金から成り、（２）はスト
レート部でアルミニウム合金から成る。（３）はこれら
の接合部である。（４）はコツター溝を示す。(Function) The straight portion is made of an aluminum alloy in order to reduce the inertial weight of the valve. Aluminum alloys are manufactured by powder metallurgy. FIG. 1 is a specific example of the present invention.
(1) is a face part made of a heat-resistant alloy, and (2) is a straight part made of an aluminum alloy. (3) is a joint portion of these. (4) shows a cotter groove.
又バルブにおいてコツター溝を含むストレート部の先
端が耐摩耗性及び面圧強度を要求される場合がある。こ
の様な場合にはストレート部の先端を鉄系耐摩合金にて
形成する。第２図はその具体例で、（１）はフエース部
で耐摩、耐熱合金から成り、（２）はストレート部でア
ルミニウム合金から成り、（５）は先端部で耐摩合金か
ら成る。（３）、（６）は接合部である。Further, in the valve, the tip of the straight portion including the cotter groove may be required to have wear resistance and surface pressure strength. In such a case, the tip of the straight portion is made of an iron-based wear resistant alloy. FIG. 2 is a specific example thereof, in which (1) is a face portion made of wear-resistant and heat-resistant alloy, (2) is a straight portion made of aluminum alloy, and (5) is made of wear-resistant alloy at the tip portion. (3) and (6) are joints.
アルミニウム合金についてはヤング率8000Kgf/mm2以
上あることが望ましい。8000Kgf/mm2より低い場合材料
にへたりあるいはたわみを生じ、正常な往復運動が出来
なくなる。It is desirable that the Young's modulus of the aluminum alloy is 8000 Kgf / mm 2 or more. If it is less than 8000 Kgf / mm 2 , the material will sag or sag, making normal reciprocating motion impossible.
またアルミニウム合金元素のうちSiについては重量比
で10％以上含むことが望ましい。これより低いと耐摩性
の点で十分な性能が得られない。一方、35％を越えると
製造上の困難さが増大する。従つてその範囲は10〜35％
がよい。Further, it is desirable that Si of the aluminum alloy elements is contained in a weight ratio of 10% or more. If it is lower than this, sufficient performance cannot be obtained in terms of abrasion resistance. On the other hand, if it exceeds 35%, the difficulty in production increases. Therefore, the range is 10-35%
Is good.
（実施例） 以下に本発明の実施例を述べる。(Examples) Examples of the present invention will be described below.
重量比でSi20％、Fe5％、Ni2％を含み残部がAl及び不
可避不純物から成る組成のAl合金粉末をエアアトマイズ
法で作成した。エアアトマイズ時の粉末冷却速度は103
〜104℃/secであつた。この粉末をCIP法にてφ150mmの
ビレツトを作成し、これを350〜500℃の範囲で脱ガスし
た後350〜500℃の温度範囲で押出し加工を行ない、φ9m
mの棒材を作成した。この棒材を所定長さに切断した。An Al alloy powder having a composition of Si20%, Fe5%, Ni2% by weight and the balance of Al and unavoidable impurities was prepared by the air atomization method. The powder cooling rate during air atomization is 10 3
It was ~ 10 4 ° C / sec. A φ150 mm billet was made from this powder by the CIP method, and this gas was degassed in the range of 350 to 500 ° C and then extruded in the temperature range of 350 to 500 ° C to obtain φ9 m
Created m bar. This rod was cut into a predetermined length.
このアルミニウム合金丸棒と鍛造加工にて作成された
SUH35のバルブフエース部を摩擦圧接にて接合した。接
合したバルブ素材を切削及び研摩加工にて最終仕上加工
を行い所定形状、寸法のバルブを作成した。Created by forging with this aluminum alloy round bar
The valve face of SUH35 was joined by friction welding. The joined valve materials were subjected to final finishing processing by cutting and polishing to prepare a valve having a predetermined shape and size.
これにより従来の98gより72gとなり26gの重量感とな
つた。This resulted in a weight of 26g, down from the conventional 98g to 72g.
なお、得られたアルミニウム合金のヤング率は10050K
gf/mm2であつた。The Young's modulus of the obtained aluminum alloy is 10050K.
It was gf / mm 2 .
（発明の効果） 本発明によりバルブ１本当り約27％の重量減を達成す
ることが出来た。(Effects of the Invention) With the present invention, a weight reduction of about 27% per valve could be achieved.
これにより慣性重量の大巾な低減を図ることが出来、
高速追随性の大巾な改善が期待できる。又バルブに使用
されるスプリングについてもバルブの慣性重量の低減に
よりスプリング圧の減少が可能となり、スプリングワイ
ヤー径の減少、スプリング重量の減少が可能となる。As a result, it is possible to greatly reduce the inertial weight,
It can be expected to greatly improve high-speed tracking. Further, regarding the spring used in the valve, the spring pressure can be reduced by reducing the inertial weight of the valve, and the diameter of the spring wire and the weight of the spring can be reduced.
第１図及び第２図は共に本発明の内燃機関用バルブの正
面図を例示している。 （１）……フエース部、（２）……ストレート部、
（３）……接合部、（４）……コツター溝、（５）……
ストレート部の先端部、（６）……接合部1 and 2 both illustrate a front view of a valve for an internal combustion engine of the present invention. (1) …… Face part, (2) …… Straight part,
(3) …… Joint part, (4) …… Kotter groove, (5) ……
Straight end, (6) …… Joined part
Claims (1)
粉末冶金法で製造したアルミニウム元素を65重量％以上
Siを10〜35重量％含有し、かつヤング率が8000Kgf/mm2
以上であることを特徴とするアルミニウム合金から形成
され、バルブシートと接する、耐熱耐摩耗合金から形成
されるフェース部に接合されて構成されたことを特徴と
する内燃機関用バルブ。1. A straight portion sliding in a valve guide contains 65% by weight or more of aluminum element manufactured by powder metallurgy.
Contains Si of 10 to 35% by weight and Young's modulus of 8000 Kgf / mm 2
A valve for an internal combustion engine, characterized in that the valve is formed of an aluminum alloy characterized by the above, and is joined to a face portion formed of a heat resistant and wear resistant alloy that is in contact with a valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157630A JPH089965B2 (en) | 1986-07-03 | 1986-07-03 | Valve for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157630A JPH089965B2 (en) | 1986-07-03 | 1986-07-03 | Valve for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6312811A JPS6312811A (en) | 1988-01-20 |
| JPH089965B2 true JPH089965B2 (en) | 1996-01-31 |
Family
ID=15653921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157630A Expired - Fee Related JPH089965B2 (en) | 1986-07-03 | 1986-07-03 | Valve for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089965B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223571A1 (en) * | 2013-11-19 | 2015-05-21 | Mahle International Gmbh | Valve for a valve device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1133942A (en) * | 1978-09-18 | 1982-10-19 | Arthur L. Baron | Bis(4-hydroxyphenyl sulfonyl)benzenes |
| JPS6184347A (en) * | 1984-09-25 | 1986-04-28 | Honda Motor Co Ltd | Hollow valve for internal combustion engine |
-
1986
- 1986-07-03 JP JP61157630A patent/JPH089965B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6312811A (en) | 1988-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |