JPH01138308A - Valve retainer - Google Patents
Valve retainerInfo
- Publication number
- JPH01138308A JPH01138308A JP29572787A JP29572787A JPH01138308A JP H01138308 A JPH01138308 A JP H01138308A JP 29572787 A JP29572787 A JP 29572787A JP 29572787 A JP29572787 A JP 29572787A JP H01138308 A JPH01138308 A JP H01138308A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- valve
- retainer
- basic material
- valve retainer
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005242 forging Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010953 base metal Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 101100262777 Caenorhabditis elegans umps-1 gene Proteins 0.000 description 1
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、軽量化を図ると共に、耐摩耗性および耐フレ
ツテイング性を向上させたバルブリテーナに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a valve retainer that is lightweight and has improved wear resistance and fretting resistance.
動弁系部品の一つであるバルブリテーナは、パルプスプ
リングの一端を支持するためのものであり、コツクー等
でバルブの上端に止められ、パルプスプリングをバルブ
と連動させている。A valve retainer, which is one of the valve train parts, is used to support one end of a pulp spring, and is fixed to the upper end of the valve with a screw or the like, so as to interlock the pulp spring with the valve.
動弁系部品は、高温・高負荷に晒されるため、その材質
は高強度のものを使用する必要があり、バルブリテーナ
には従来より、炭素鋼やクロム鋼等に浸炭焼入れしたも
のが用いられてきた。Valve train parts are exposed to high temperatures and high loads, so they must be made of high-strength materials. Traditionally, valve retainers are made of carburized and quenched carbon steel, chrome steel, etc. It's here.
このため、動弁系全体の重量が重くなる傾向が避けられ
なかった。For this reason, the weight of the entire valve train system inevitably tends to increase.
そこで、燃費等の改善のために、動弁系部品の軽量化を
目的として様々な試みがなされている。例えば、特開昭
５８−２１０３０８号公報には、タペットの軽量化構造
が開示されており、近年バルブリテーナへのアルミニウ
ム合金等の使用も研究されている。Therefore, various attempts have been made to reduce the weight of valve train components in order to improve fuel efficiency and the like. For example, Japanese Patent Application Laid-Open No. 58-210308 discloses a lightweight structure for tappets, and in recent years, research has also been carried out on the use of aluminum alloys and the like for valve retainers.
しかしながら、バルブリテーナをアルミニウム合金から
製造した場合、該合金を高珪素の耐摩耗性アルミニウム
合金としても、パルプスプリングとの当接面の摩耗が早
く、そしてフレッティングを起こし易いという問題があ
る。このためバルブリテーナは、長時間の使用により、
摩耗が進み、ひいてはスプリングの荷重に耐えられず破
壊する恐れがある。パルプリテーナが破壊した場合、バ
ルブが抜は落ち、ピストンと燃焼室が損傷して、エンジ
ン全体に甚大な支障をきたす。However, when the valve retainer is manufactured from an aluminum alloy, even if the alloy is a high-silicon, wear-resistant aluminum alloy, there is a problem in that the contact surface with the pulp spring wears quickly and fretting easily occurs. For this reason, the valve retainer may become damaged due to long-term use.
As wear progresses, there is a risk that it will not be able to withstand the spring load and break. If the pulp retainer breaks, the valve will fall out and the piston and combustion chamber will be damaged, causing serious damage to the engine as a whole.
本発明は上記の問題点を解決するためのものであり、そ
の目的とするところは、バルフ゛リテーナとしての強度
を保持しつつ、軽量化を図り、さらに耐摩耗性および耐
フレツテイング性を向上させるパルプリテーナを提供す
ることである。The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a pulp that maintains the strength as a valve retainer, is lightweight, and further improves abrasion resistance and fretting resistance. It is to provide a retainer.
本発明のパルプリテーナは、高強度アルミニウム合金を
母材とするパルプリテーナのバルブスプリングとの当接
面に、
厚さ０．１ｍｍないし０．５ｍｍ、硬さＨｖ３００以上
で、前記母材との接着面側に返−り部を有する小孔を複
数個設けた鋼板を、前記母材に密着するように組付けた
ことを特徴とする。The pulp retainer of the present invention is made of a high-strength aluminum alloy as a base material, and the contact surface with the valve spring has a thickness of 0.1 mm to 0.5 mm and a hardness of Hv300 or more, and is bonded to the base material. The present invention is characterized in that a steel plate having a plurality of small holes with turned parts on the surface side is assembled so as to be in close contact with the base material.
本発明のパルプリテーナの母材である高強度アルミニウ
ム合金は、パルプリテーナとして使用に耐え得る強度を
示すもの、即ち引張強度が３５ｋｇ／閤”以上の高強度
材とする。これは、強度が弱いとパルプリテーナの形状
で強度を確保する場合厚さが厚くなり、設計が困難とな
るためである。そして上記の強度を有するものであれば
、特に限定されないが、例えば珪素により強化を図り、
ニッケルおよび銅により高温強度向上を図った耐熱合金
等が使用できる。The high-strength aluminum alloy that is the base material of the pulp retainer of the present invention is one that exhibits strength sufficient to withstand use as a pulp retainer, that is, a high-strength material with a tensile strength of 35 kg/min or more. This is because if the strength is ensured by the shape of the pulp retainer, the thickness becomes thick and the design becomes difficult.As long as it has the above strength, it is not particularly limited, but for example, it can be reinforced with silicon,
Heat-resistant alloys with improved high-temperature strength using nickel and copper can be used.
またー、上記の母材に組付ける鋼板は、厚さがＱ、１ｍ
ｍないし０ 、５ｙａ 、硬さがＨｖ３００以上のもの
とする。これは該鋼板が、バルブスプリングに当接する
ものであり、厚さが０．１ｍｍ＋未満では耐摩耗性を確
保することができず、一方０．５ｍｍを越えると重量が
増し、軽量化の効果が小さくなるためである。また、硬
さがＨｖ３００未満では、耐摩耗性および耐フレツテイ
ング性の確保が困難となることによる。Also, the steel plate to be assembled to the above base material has a thickness of Q, 1m.
m to 0,5ya, and hardness is Hv300 or more. This is because the steel plate comes into contact with the valve spring, and if the thickness is less than 0.1mm, wear resistance cannot be ensured, while if it exceeds 0.5mm, the weight will increase and the weight reduction effect will not be achieved. This is because it becomes smaller. Further, if the hardness is less than Hv300, it becomes difficult to ensure wear resistance and fretting resistance.
さらに前記鋼板は、母材との接着面側に返り瀞
部を有する小孔を複数個設けたものであるが、これは該
母材との組付けによる密着力を高めるためのものである
。そして、この効果を充分に発揮させるために、前記小
孔は、鋼板全域にわたり均等に分散させて２ないし１２
個設けることが好ましい、これは、２個未満では密着力
が弱く、１２個を越えると鋼板の強度が損なわれること
による。Further, the steel plate is provided with a plurality of small holes having curled portions on the surface to be bonded to the base material, and this is to increase the adhesion force when assembled with the base material. In order to fully exhibit this effect, the small holes are evenly distributed over the entire area of the steel plate, and 2 to 12 holes are formed.
It is preferable to provide more than 2. This is because if there are less than 2, the adhesion will be weak, and if more than 12, the strength of the steel plate will be impaired.
ここで、「返り部」とは鋼板に小孔を設けるためにドリ
ル等で表側から穿孔した場合に、裏側に残る環状の突起
を意味する。そしてこの返り部は母材との接着面側に存
在している。Here, the term "returned part" means an annular protrusion that remains on the back side when a hole is drilled from the front side with a drill or the like to make a small hole in a steel plate. This curved portion exists on the adhesive surface side with the base material.
また、本発明のパルプリテーナは、母材の鍛造と同時に
、該母材の相当する面に鋼板を押圧して製造することが
でき、これにより鋼板の返り部が母材にめり込み、鋼板
と母材は強固に密着する。Further, the pulp retainer of the present invention can be manufactured by pressing a steel plate against the corresponding surface of the base metal at the same time as forging the base metal, so that the bent portion of the steel plate sinks into the base metal, and the steel plate and the base metal are pressed together. The materials adhere firmly.
（作用〕
本発明のパルプリテーナは、高強度アルミニウム合金を
母材としているため、軽量化および高強度化は充分に図
られ、しかもバルブスプリングとの当接面には鋼板を取
付けであるため、耐摩耗性および耐フレツテイング性の
向上を図ることも可能とした。(Function) Since the pulp retainer of the present invention uses a high-strength aluminum alloy as a base material, it is sufficiently lightweight and has high strength.Moreover, since a steel plate is attached to the contact surface with the valve spring, It also made it possible to improve wear resistance and fretting resistance.
また、該鋼板の母材との接着面側に、返り部を有する小
孔を複数個設けてあり、鋼板と母材との組付けの際に、
前記返り部は母材にめり込むため、鋼板と母材との高い
密着力も確保される。In addition, a plurality of small holes with bent portions are provided on the adhesive side of the steel plate to the base material, so that when assembling the steel plate and the base material,
Since the bent portion sinks into the base material, high adhesion between the steel plate and the base material is also ensured.
次に本発明を実施例に基づいてさらに詳細に説明するが
、本発明はこれに限定されるものではない。Next, the present invention will be explained in more detail based on Examples, but the present invention is not limited thereto.
まず、第４図を参照して、パルプリテーナ１を備える動
弁系の構造を概略説明する。シリンダヘッド６内に設け
られた吸（排）気孔８と燃焼室１７との接合部に、パル
プシー）１４が設けられている。該シート１４にはパル
プ１２の傘部１２’が当接するが、バルブ１２のステム
１２′１は上方に延びその上端にコツクー１６を介して
パルプリテーナ１が取付けられている。First, with reference to FIG. 4, the structure of a valve train including the pulp retainer 1 will be schematically explained. A pulp sear 14 is provided at the junction between the intake (exhaust) hole 8 provided in the cylinder head 6 and the combustion chamber 17. The umbrella portion 12' of the pulp 12 comes into contact with the seat 14, and the stem 12'1 of the valve 12 extends upward, and the pulp retainer 1 is attached to the upper end of the stem 12'1 via a screw 16.
パルプリテーナ１とシリンダヘッド６のシート部１５と
の間にはスプリング７が装着され、バルブ１２を上方に
付勢してバルブの傘部１２′がバルブシート１４に圧着
するようにしている。A spring 7 is installed between the pulp retainer 1 and the seat portion 15 of the cylinder head 6, and urges the valve 12 upward so that the valve head portion 12' is pressed against the valve seat 14.
バルブステム１２ ”のほぼ中央から下部の咳ステム１
２”の周囲には、シリンダへラド６との間にブツシュ１
３が介装されており、バルブ１２の作動を円滑にしてい
る。また該ステム１２１１の上方にはバルブリフタ１１
とカム９に接するアジヤスティングシム１０が設けられ
ている。カム９が回転するとそのリフト量に応じてバル
ブ１２が開閉し、吸（排）気できる構造となっている。From approximately the center of the valve stem 12” to the bottom of the cough stem 1
2", there is a bush 1 between the cylinder and Rad 6.
3 is interposed to make the operation of the valve 12 smooth. Further, a valve lifter 11 is provided above the stem 1211.
An adjusting shim 10 that is in contact with the cam 9 is provided. When the cam 9 rotates, the valve 12 opens and closes depending on the amount of lift thereof, so that air can be taken in (exhausted).
ここで前記バルブリテーナ１は、第１図に示すように本
発明に係る構造を有するもので、引張強度が３５ｋｇ／
ｌｌｆｆ１”以上の高強度アルミニウム合金からなる母
材２に、バルブリテーナ１のバルブスプリング７との当
接面Ａに、第２図および第３図に示す厚さ０．３ｍで、
硬さ・Ｈｖ４５０の円板状の鋼板３を密着して組付けた
ものである。また該綱板３には、６個の小孔５を均等に
配設しであるが、該小孔５の穿孔をドリル等で行い、裏
側（母材２との接着面側）には環状の返り部４を残しで
ある。そして、これら母材２と鋼板３との組付けは、前
記母材２の鍛造と同時に鋼板３を母材２に押圧して組付
けることにより行い、その結果該鋼板３の返り部４が母
材にめり込んで組付けられるものである。Here, the valve retainer 1 has a structure according to the present invention as shown in FIG. 1, and has a tensile strength of 35 kg/
A base material 2 made of a high-strength aluminum alloy with a strength of 1" or more is provided with a thickness of 0.3 m as shown in FIGS. 2 and 3 on the contact surface A of the valve retainer 1 with the valve spring 7.
Disc-shaped steel plates 3 having a hardness of 450 Hv are assembled in close contact with each other. In addition, six small holes 5 are evenly arranged in the rope plate 3, but the small holes 5 are drilled with a drill or the like, and an annular shape is formed on the back side (the side to be bonded to the base material 2). All that remains is the return section 4. The base material 2 and the steel plate 3 are assembled by pressing and assembling the steel plate 3 to the base material 2 at the same time as the base material 2 is forged, and as a result, the bent portion 4 of the steel plate 3 is It is assembled by sinking into the material.
次に上記の本発明のバルブリテーナ１を備えた動弁系を
用いて、台上耐久試験を行った。該試験は、前記動弁系
を実際に６６０Ｏｒｐｍ 、 ２００ｈｒの全負荷の条
件で作動させ、バルブリテーナ１のバルブスプリング７
との当接面Ａの摩耗量を測定するものである。Next, a bench durability test was conducted using a valve train equipped with the above-described valve retainer 1 of the present invention. In this test, the valve train was actually operated under a full load condition of 660 rpm and 200 hours, and the valve spring 7 of the valve retainer 1 was
This is to measure the amount of wear on the contact surface A.
比較のため、本発明のバルブリテーナの代わりに従来の
浸炭焼入れ処理した炭素鋼の鋼リテーナ（比較例１）ま
たは高珪素の耐摩耗性アルミニウム合金によるアルミリ
テーナ（比較例２）をそれぞれ前記動弁系に設置して同
様の試験を行った。For comparison, instead of the valve retainer of the present invention, a conventional steel retainer made of carburized and quenched carbon steel (Comparative Example 1) or an aluminum retainer made of a high-silicon wear-resistant aluminum alloy (Comparative Example 2) was used in the valve train, respectively. A similar test was conducted by installing it in a system.
その結果を第５図に示す。これによると本実施例のバル
ブリテーナの摩耗量は、鋼リテーナ並であり、従って充
分な耐摩耗性を示すことがわかる。さらに本実施例のも
のは、フレッティングの発生も微小で、充分な耐フレツ
テイング性を確保している。これに対し、アルミリテー
ナでは、摩耗量が多く、フレッティングも甚だしいもの
だった。The results are shown in FIG. According to this, the amount of wear of the valve retainer of this example is comparable to that of a steel retainer, and therefore it can be seen that it exhibits sufficient wear resistance. Further, in this example, the occurrence of fretting is minimal and sufficient fretting resistance is ensured. On the other hand, aluminum retainers suffered from a large amount of wear and fretting.
さらに、本実施例のものは、アルミリテーナとほぼ同じ
重量であり、鋼リテーナに比べ橿めて軽量である。Furthermore, the weight of this embodiment is approximately the same as that of an aluminum retainer, and is significantly lighter than a steel retainer.
〔発明の効果］
以上詳細に説明したように、本発明のバルブリテーナは
、アルミニウム合金と同程度に軽量で、しかも鋼板と同
程度の耐摩耗性および耐フレツテイング性を示すもので
あるため、動弁系部品に要求される軽量化と、耐摩耗性
および耐フレツテイング性の向上を一緒に図ることがで
きた。[Effects of the Invention] As explained in detail above, the valve retainer of the present invention is as lightweight as an aluminum alloy and exhibits wear resistance and fretting resistance as good as a steel plate. We were able to achieve both the weight reduction required for valve system parts, as well as improvements in wear resistance and fretting resistance.
さらに本発明のバルブリテーナは、鋼板と母材とがしっ
かりと密着されており、しかも高い強度を示すものであ
るために、厳しい条件下に晒されても、バルブリテーナ
の機能を失うことがなく、エンジンに損傷を招くことが
ない。Furthermore, in the valve retainer of the present invention, the steel plate and the base metal are tightly bonded and exhibit high strength, so even if exposed to severe conditions, the valve retainer will not lose its function. , without causing damage to the engine.
第１図は、本発明の実施例におけるバルブリテーナの縦
断面図、
第２図は、第１図に示すバルブリテーナに使用する鋼板
の平面図、
第３図は、第２図に示す鋼板のＩ−１線断面図、
第４図は、動弁系の縦断面図、
第５図は、本発明の実施例におけるバルブリテーナの摩
耗量を比較例と対比して示すグラフを表す。
図中、
１・・・バルブリテーナ ２・・・母材３・・・綱板
４・・・返り部５・・・小孔1 is a longitudinal sectional view of a valve retainer according to an embodiment of the present invention, FIG. 2 is a plan view of a steel plate used in the valve retainer shown in FIG. 1, and FIG. 3 is a plan view of a steel plate used in the valve retainer shown in FIG. 4 is a longitudinal sectional view of the valve train, and FIG. 5 is a graph showing the amount of wear of the valve retainer in the example of the present invention in comparison with a comparative example. In the figure, 1... Valve retainer 2... Base material 3... Steel plate 4... Return part 5... Small hole
Claims (1)
バルブスプリングとの当接面に、厚さ０．１ｍｍないし
０．５ｍｍ、硬さＨｖ３００以上で、前記母材との接着
面側に返り部を有する小孔を複数個設けた鋼板を、前記
母材に密着するように組付けたことを特徴とするバルブ
リテーナ。A valve retainer made of a high-strength aluminum alloy as a base material has a return portion on the contact surface with the valve spring, with a thickness of 0.1 mm to 0.5 mm, a hardness of Hv300 or more, and on the adhesive surface side with the base material. A valve retainer characterized in that a steel plate provided with a plurality of small holes is assembled so as to be in close contact with the base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29572787A JPH01138308A (en) | 1987-11-24 | 1987-11-24 | Valve retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29572787A JPH01138308A (en) | 1987-11-24 | 1987-11-24 | Valve retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01138308A true JPH01138308A (en) | 1989-05-31 |
Family
ID=17824387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29572787A Pending JPH01138308A (en) | 1987-11-24 | 1987-11-24 | Valve retainer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292708A (en) * | 2013-05-10 | 2013-09-11 | 杭州电子科技大学 | Valve retainer abrasion loss measuring device and method |
-
1987
- 1987-11-24 JP JP29572787A patent/JPH01138308A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292708A (en) * | 2013-05-10 | 2013-09-11 | 杭州电子科技大学 | Valve retainer abrasion loss measuring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7803236B2 (en) | Valve spring retainer made of titanium | |
| WO2010016227A1 (en) | Spring retainer and spring system | |
| US6164261A (en) | Internal combustion engine piston assembly and method | |
| JPH01138308A (en) | Valve retainer | |
| JP2012162999A (en) | Intake valve of internal combustion engine | |
| US5410995A (en) | Valve crosshead assembly with wear-reducing contact pad | |
| Larson et al. | Engine valves—Design and material evolution | |
| US6186478B1 (en) | Al alloy poppet valve | |
| JPH0639095Y2 (en) | Fuel injection nozzle for diesel engine | |
| US20130291813A1 (en) | Drive Cam and Valve Operating System in Engine | |
| EP0618351B1 (en) | Tappets for use in internal combustion engines | |
| US6349689B1 (en) | Tappet assembly with a ceramic wear pad | |
| EP0864731A1 (en) | A1 alloy valve spring retainer | |
| JP2639057B2 (en) | Aluminum alloy valve lifter | |
| US4072088A (en) | Light-weight piston assemblies | |
| EP0864730A1 (en) | Inlet valve in an internal combustion engine and a method of manufacturing the same | |
| EP0711904B1 (en) | Sliding part and a method of producing thereof | |
| KR100243840B1 (en) | Engine tappet | |
| JP3120298B2 (en) | Tappet for internal combustion engine | |
| JP2809317B2 (en) | Cotta for ceramic valve | |
| JP4190210B2 (en) | Engine intake and exhaust valves | |
| JPH0311107A (en) | Valve lifter | |
| JPH06307212A (en) | Valve spring retainer | |
| JPH0763020A (en) | Aluminum alloy made valve retainer | |
| JPS5987210A (en) | Rocker arm |