JP2002327732A - Connecting rod of engine - Google Patents
Connecting rod of engineInfo
- Publication number
- JP2002327732A JP2002327732A JP2001131108A JP2001131108A JP2002327732A JP 2002327732 A JP2002327732 A JP 2002327732A JP 2001131108 A JP2001131108 A JP 2001131108A JP 2001131108 A JP2001131108 A JP 2001131108A JP 2002327732 A JP2002327732 A JP 2002327732A
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- engine
- sliding
- small end
- spray coating
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば自動二輪車
用もしくは自動車用エンジンのコンロッドに関し、特
に、コンロッド自体が軽量でかつコンロッド端部の摺動
内面での摺動性に優れたエンジンのコンロッドに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting rod for an engine for a motorcycle or an automobile, for example, and more particularly to a connecting rod for an engine in which the connecting rod itself is lightweight and has excellent slidability on the sliding inner surface at the end of the connecting rod. .
【０００２】[0002]
【従来の技術】従来、自動二輪車もしくは自動車用、産
業用及び船舶用など内燃機関のコンロッドの製作に用い
る材料には、鋼（炭素鋼、合金鋼、浸炭鋼など）、焼結
（鉄系、非鉄系）、鋳鉄、アルミニウム及びチタンなど
多様なものがあるが、とりわけ前記自動二輪車もしくは
自動車などの車両用ピストンエンジンにおけるコンロッ
ドの材料としては、これまで、硬度が高く機械的強度に
も優れた炭素鋼などの鋼材が主に用いられている。2. Description of the Related Art Conventionally, materials used for manufacturing connecting rods of internal combustion engines such as motorcycles, automobiles, industrial and marine vessels include steel (carbon steel, alloy steel, carburized steel, etc.), sintered (iron-based, Non-ferrous), cast iron, aluminum and titanium, among others. Among the materials for connecting rods in piston engines for vehicles such as motorcycles or automobiles, carbon materials with high hardness and excellent mechanical strength have been used. Steel materials such as steel are mainly used.
【０００３】ところで、近年、エンジンの低燃費化、コ
ンパクト化などへの要求が大きく、各エンジン部品の軽
量化によるエンジン性能向上（高出力、低燃費化、レス
ポンス向上及び低振動など）が課題となっている。そし
て、前記エンジンを構成する各部品のうち、コンロッド
の軽量化もエンジン性能向上のための一つの要素とな
る。現在、コンロッドの材料として、これまでの鋼材料
から軽量で硬度及び機械的強度にも優れたチタン合金へ
の転換が研究されており、一部では既に実用化も進んで
いる。[0003] In recent years, there has been a great demand for low fuel consumption and compact engines, and there has been an issue of improving engine performance (high power, low fuel consumption, response improvement, low vibration, etc.) by reducing the weight of each engine component. Has become. And, among the components constituting the engine, the weight reduction of the connecting rod is also one factor for improving the engine performance. At present, as a material for connecting rods, conversion from a conventional steel material to a titanium alloy which is lightweight and has excellent hardness and mechanical strength is being studied, and some of them have already been put into practical use.
【０００４】前記コンロッドの構成材料としてチタン合
金を用いた場合、鋼製コンロッドの場合に比べ、約３０
％軽量化されると考えられ、エンジンのレスポンス改善
や高出力化に対し大きな効果が得られる。しかし、その
反面、前記チタン合金は摺動特性が低いため、摺動部、
特に、コンロッド小端部での摺動特性が劣る。そこで、
前記チタン合金よりなるコンロッドでは、前記コンロッ
ド小端部の摺動内面に摺動特性に優れた銅のブッシュを
嵌め込むことで前記摺動特性が劣る点をカバーし、前記
摺動特性の改善を図っている。[0004] When a titanium alloy is used as a constituent material of the connecting rod, it is about 30 times less than a steel connecting rod.
It is considered that the weight of the engine is reduced by 100%, and a great effect is obtained for improving the response of the engine and increasing the output. However, on the other hand, since the titanium alloy has low sliding characteristics, the sliding portion,
In particular, the sliding characteristics at the small end of the connecting rod are inferior. Therefore,
In the connecting rod made of the titanium alloy, the point where the sliding property is inferior is covered by fitting a copper bush excellent in sliding property into the sliding inner surface of the small end of the connecting rod, thereby improving the sliding property. I'm trying.
【０００５】[0005]
【発明が解決しようとする課題】ところが、図１（ｂ）
に示すように、コンロッド大端部２１、桿部２３及びコ
ンロッド小端部２３がチタン合金により一連に形成され
てなるコンロッド２０において、例えばコンロッド小端
部２３の摺動内面に対し、摺動特性に優れた銅のブッシ
ュ２５を嵌め込んだ場合、摺動特性の改善は図られるも
のの、コンロッド小端部２３が従来の外径のままである
と、コンロッド小端部２１での機械的強度が低くなるの
で、この機械的強度を十分に確保するために前記コンロ
ッド小端部２３自体の外径を大きくせざるをえなかっ
た。コンロッド小端部２３自体の寸法を大きくすると、
折角のチタン合金使用によるコンロッド２０の軽量化効
果が薄くなり、各エンジン部品の軽量化によるエンジン
性能向上という本来の目的を十分に達成できない。However, FIG. 1 (b)
As shown in the figure, in the connecting rod 20 in which the connecting rod large end 21, the rod 23 and the connecting rod small end 23 are formed in a series from a titanium alloy, for example, the sliding characteristics of the sliding inner surface of the connecting rod small end 23 are improved. When the copper bushing 25 having an excellent diameter is fitted, the sliding characteristics are improved, but if the connecting rod small end 23 remains the conventional outer diameter, the mechanical strength of the connecting rod small end 21 is reduced. Therefore, the outer diameter of the connecting rod small end 23 itself had to be increased in order to sufficiently secure the mechanical strength. When the dimensions of the connecting rod small end 23 itself are increased,
The weight saving effect of the connecting rod 20 due to the use of the bent titanium alloy is reduced, and the original purpose of improving engine performance by reducing the weight of each engine component cannot be sufficiently achieved.
【０００６】このように、従来のチタン合金よりなるコ
ンロッドにおいて、コンロッド２０自体の軽量化と、コ
ンロッド端部の摺動内面での優れた摺動特性とを同時に
達成することができなかった。As described above, in the conventional connecting rod made of a titanium alloy, it was not possible to simultaneously achieve the weight reduction of the connecting rod 20 itself and the excellent sliding characteristics of the sliding inner surface of the connecting rod end.
【０００７】本発明は、前記した課題に鑑みてなされた
もので、チタン合金などの軽量材料使用によるコンロッ
ドの軽量化効果を損なうことなく、前記コンロッド端部
の摺動内面での摺動特性に優れたエンジンのコンロッド
を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made to improve the sliding characteristics of the connecting rod end portion on the sliding inner surface without impairing the weight saving effect of the connecting rod by using a lightweight material such as a titanium alloy. An object of the present invention is to provide a superior engine connecting rod.
【０００８】[0008]
【課題を解決するための手段】前記した目的を達成する
ため、本発明にかかるエンジンのコンロッドは、ピスト
ンエンジンにおけるコンロッド端部の摺動内面に、線爆
溶射により摺動性に優れた材料からなる溶射被膜が形成
されている。In order to achieve the above-mentioned object, a connecting rod of an engine according to the present invention is made of a material having excellent slidability by wire explosion spraying on a sliding inner surface of a connecting rod end of a piston engine. Thermal spray coating is formed.
【０００９】前記したエンジンのコンロッドによれば、
コンロッド自体の材料にかかわりなく、前記コンロッド
端部の摺動内面が摺動性に優れたもの、つまり摩擦抵抗
の小さいものとなる。したがって、コンロッドをチタン
合金のような軽量な材料で形成することで、軽量で、か
つコンロッド端部の摺動内面での摺動特性にも優れると
いう２つの課題を同時に達成することができる。しか
も、前記摺動内面の被膜は、線爆溶射によって形成され
ているので、コンロッド自体との密着力は、例えば化学
蒸着や物理蒸着などにより形成した被膜に比べて強く、
前記コンロッドから剥離しにくい。したがって、長期に
わたって優れた摺動性を持続するエンジンのコンロッド
が得られる。According to the connecting rod of the engine described above,
Regardless of the material of the connecting rod itself, the sliding inner surface of the connecting rod end has excellent slidability, that is, a material having small frictional resistance. Therefore, by forming the connecting rod with a lightweight material such as a titanium alloy, it is possible to simultaneously achieve the two problems of light weight and excellent sliding characteristics on the sliding inner surface of the connecting rod end. Moreover, since the coating on the sliding inner surface is formed by wire explosion spraying, the adhesive force with the connecting rod itself is stronger than a coating formed by, for example, chemical vapor deposition or physical vapor deposition,
It is difficult to peel off from the connecting rod. Therefore, a connecting rod of an engine that maintains excellent slidability over a long period of time can be obtained.
【００１０】また、本発明の好ましい実施形態にかかる
エンジンのコンロッドは、前記コンロッドがチタニウム
合金からなり、前記溶射被膜の材料がモリブデンもしく
は銅である。[0010] In the connecting rod of the engine according to a preferred embodiment of the present invention, the connecting rod is made of a titanium alloy, and the material of the thermal spray coating is molybdenum or copper.
【００１１】前記エンジンのコンロッドによれば、コン
ロッドがチタニウム合金から形成されているので、コン
ロッド全体としての軽量化が図られ、かつコンロッド端
部の摺動内面に形成する溶射被膜は、摺動性に優れたモ
リブデンもしくは銅で形成されているので、前記コンロ
ッド端部の摺動内面の摺動特性にも優れたコンロッドと
することができる。According to the connecting rod of the engine, since the connecting rod is formed of a titanium alloy, the weight of the connecting rod as a whole is reduced, and the thermal spray coating formed on the sliding inner surface at the end of the connecting rod has a sliding property. Since it is made of molybdenum or copper having excellent sliding characteristics, it is possible to obtain a connecting rod having excellent sliding characteristics of the sliding inner surface at the end of the connecting rod.
【００１２】さらに、本発明の好ましい実施形態にかか
るエンジンのコンロッドは、前記コンロッド端部がコン
ロッド小端部である。Further, in the connecting rod of the engine according to a preferred embodiment of the present invention, the connecting rod end is a connecting rod small end.
【００１３】前記したエンジンのコンロッドによれば、
より優れた摺動性が求められるコンロッド小端部の摺動
内面での摺動特性が優れているので、エンジンの稼動
時、前記小端部に挿通されるピストンピンとの間の摺動
を円滑なものとすることができる。また、コンロッド小
端部に形成される溶射被膜は、小径部位での溶射が行え
る線爆溶射によって形成されるものであるから、前記コ
ンロッド小端部の外径を従来のように大きくしなくと
も、前記コンロッド小端部の機械的強度を十分に確保す
ることができる。According to the connecting rod of the engine described above,
Since the sliding characteristics of the small end of the connecting rod, which requires better sliding properties, are excellent at the sliding inner surface, the sliding between the piston pin inserted into the small end during the operation of the engine is smooth. It can be. Further, since the thermal spray coating formed on the small end of the connecting rod is formed by wire explosion spraying capable of performing thermal spraying at a small diameter portion, it is not necessary to increase the outer diameter of the small end of the connecting rod as in the related art. Thus, the mechanical strength of the small end of the connecting rod can be sufficiently ensured.
【００１４】[0014]
【発明の実施の形態】以下、本発明の一実施形態にかか
るエンジンのコンロッドについて図１ないし図３を参照
しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An engine connecting rod according to an embodiment of the present invention will be described below with reference to FIGS.
【００１５】まず、本発明にかかるエンジンのコンロッ
ドを図１（ａ）により説明する。同図に示すコンロッド
１は、チタン合金で形成され、クランク軸に設けたクラ
ンクピンが挿入されるコンロッド大端部２と、ピストン
に設けたピストンピンが挿入されるコンロッド小端部４
と、これら端部２，４を連結する桿部３とを備えてい
る。前記コンロッド小端部４の摺動内面には、モリブデ
ンもしくは銅のような摺動特性に優れた材料からなる溶
射被膜５が形成されている。この溶射被膜５は、線爆溶
射法によって形成されている。被膜の厚みは数百μｍが
好ましい。線爆溶射による被膜５は、多孔質となるか
ら、潤滑油の保持力が大きくなるので、摩擦抵抗の小さ
い摺動性に優れたものとなる。First, a connecting rod of an engine according to the present invention will be described with reference to FIG. The connecting rod 1 shown in FIG. 1 is made of a titanium alloy and has a large connecting rod end 2 on which a crank pin provided on a crankshaft is inserted and a small connecting rod end 4 on which a piston pin provided on a piston is inserted.
And a rod 3 connecting these ends 2 and 4. A thermal spray coating 5 made of a material having excellent sliding characteristics, such as molybdenum or copper, is formed on the sliding inner surface of the connecting rod small end portion 4. This thermal spray coating 5 is formed by the wire explosion thermal spraying method. The thickness of the coating is preferably several hundred μm. Since the coating 5 formed by the wire explosion spraying is porous, the holding power of the lubricating oil is increased, so that the sliding property with small frictional resistance is excellent.
【００１６】ここで、前記溶射被膜５の形成手段として
線爆溶射法を用いた理由は、特にコンロッド小端部４の
ような小径内面への溶射被膜の形成が容易に行え、かつ
基体であるコンロッド１に対する前記溶射被膜５の密着
力がきわめて強く、しかも、潤滑油を保持して優れた摺
動性を確保するのに必要な数百μｍの厚みを持たせるの
が容易だからである。なお、線爆溶射法以外の被膜形成
手段であるＰＶＤ（物理的蒸着）やＣＶＤ（化学的蒸
着）による被膜では、厚み（数〜数十μｍ）が薄すぎて
摺動内面での長期にわたる使用に耐えない。また、メッ
キによる被膜では、厚み（数百μｍ）はかなり大きくで
きるものの、チタン合金へのメッキが難しい。さらに、
ノズルで被覆材料を基体に吹き付ける他の溶射法では、
特にコンロッド小端部のような小径孔へのノズルの挿入
が容易でないために、施工が困難である。Here, the reason why the wire explosion spraying method is used as a means for forming the thermal spray coating 5 is that the thermal spray coating can be easily formed particularly on the inner surface of a small diameter such as the small end portion 4 of the connecting rod, and the substrate is used. This is because the adhesion of the thermal spray coating 5 to the connecting rod 1 is extremely strong, and it is easy to maintain the lubricating oil to have a thickness of several hundred μm necessary to secure excellent slidability. In addition, in the case of a film formed by PVD (physical vapor deposition) or CVD (chemical vapor deposition) which is a film forming means other than the wire explosion spraying method, the thickness (several to several tens of μm) is too thin to be used for a long time on the sliding inner surface. I do not endure. Further, in the case of a film formed by plating, although the thickness (several hundred μm) can be considerably increased, it is difficult to perform plating on a titanium alloy. further,
In other thermal spraying methods, where the coating material is sprayed onto the substrate with a nozzle,
In particular, since it is not easy to insert a nozzle into a small-diameter hole such as a small end portion of a connecting rod, construction is difficult.
【００１７】前記コンロッド１において、溶射被膜５が
コンロッド小端部４に形成された場合を例示したが、例
えば自動二輪車などの小形エンジンでは、前記コンロッ
ド大端部２が２分割されることなく一体形成されたもの
もあるので、その場合、前記コンロッド小端部４と同様
に、コンロッド大端部２の摺動内面に溶射被膜５を形成
してその摺動性を高めることができる。In the connecting rod 1, the spray coating 5 is formed on the connecting rod small end 4, but in a small engine such as a motorcycle, for example, the connecting rod large end 2 is integrated without being divided into two parts. Some of them are formed. In this case, as in the case of the small connecting rod end 4, a thermal spray coating 5 is formed on the sliding inner surface of the large connecting rod end 2 to improve the slidability.
【００１８】ここで、前記線爆溶射法によるコンロッド
小端部４の摺動内面への溶射被膜形成方法を図２および
図３について説明する。まず、線爆溶射装置６の概略を
図２により説明すると、防音兼密閉室７内で、例えばコ
ンロッド小端部４を固定台８に設置し、線材投入口９か
ら前記小端部４の中心線上に溶射線材１０を投入する。
そして、前記溶射線材１０の上端および下端にそれぞ
れ、電極１１ａ，１１ｂをセットする。ついで、外部の
コンデンサ１２に充電した電気エネルギーを前記電極１
１ａ，１１ｂ間に衝撃大電流として流す。なお、前記コ
ンデンサ１２は充電装置１３により充電され、線爆溶射
時に発生する塵は集塵排出口１４から外部に排出され
る。Here, a method of forming a thermal spray coating on the sliding inner surface of the connecting rod small end 4 by the wire explosion thermal spraying method will be described with reference to FIGS. First, the outline of the wire explosion spraying device 6 will be described with reference to FIG. 2. In the soundproof and sealed chamber 7, for example, the small end 4 of the connecting rod is set on the fixed base 8, and the center of the small end 4 is inserted through the wire insertion port 9. The spray wire 10 is put on the wire.
Then, electrodes 11a and 11b are set at the upper end and the lower end of the sprayed wire 10, respectively. Next, the electric energy charged in the external capacitor 12 is transferred to the electrode 1.
A large impact current is applied between 1a and 11b. The capacitor 12 is charged by the charging device 13, and dust generated during wire explosion spraying is discharged to the outside through the dust collection outlet 14.
【００１９】前記した線爆溶射装置６を用いて、コンロ
ッドの端部の摺動内面に所定の溶射被膜を形成するが、
その作業工程の一例を図３により説明する。図３（ａ）
のように、溶射線材１０に対してコンデンサ１１から所
定の大電流が流れると、図３（ｂ）のように溶射線材１
０が爆発し、溶融粒子とガスとが放射状に飛散する。こ
の溶射線材１０の爆発により飛散した前記溶融粒子は、
コンロッド小端部４の内面４ａに均一、かつ強い密着力
で付着する。溶射線材１１を所定本数だけ爆発させるこ
とにより、図３（ｃ）に示すように、コンロッド小端部
４の内面４ａに所望厚みの溶射被膜５が形成される。A predetermined thermal spray coating is formed on the sliding inner surface at the end of the connecting rod by using the wire explosion thermal spraying apparatus 6 described above.
An example of the work process will be described with reference to FIG. FIG. 3 (a)
As shown in FIG. 3 (b), when a predetermined large current flows from the capacitor 11 to the sprayed wire 10 as shown in FIG.
0 explodes, and the molten particles and gas scatter radially. The molten particles scattered by the explosion of the thermal spray wire 10 are:
It is uniformly and strongly adhered to the inner surface 4a of the connecting rod small end 4. By exploding a predetermined number of spray wires 11, a spray coating 5 having a desired thickness is formed on the inner surface 4 a of the small end portion 4 of the connecting rod, as shown in FIG.
【００２０】なお、前記溶射材料として用いる溶射線材
１０は、摺動特性に優れ、線爆溶射させやすいものであ
れば特に限定されるものでないが、エンジンのコンロッ
ド１における端部２，４の摺動内面での求められる摺動
性を考慮すれば、多数の実験結果から，モリブデンや銅
が望ましいと考えられる。また、前記溶射被膜５の厚み
は前記溶射線材１０の径、爆発本数、この溶射線材１０
に流す電流値の設定等により、任意に選択することがで
きる。The thermal spraying wire 10 used as the thermal spraying material is not particularly limited as long as it has excellent sliding characteristics and can be easily subjected to linear explosive thermal spraying. Considering the required slidability on the inner surface, molybdenum and copper are considered to be desirable from many experimental results. The thickness of the sprayed coating 5 depends on the diameter of the sprayed wire 10, the number of explosions, and the thickness of the sprayed wire 10.
Can be arbitrarily selected by setting the value of the current flowing through the device.
【００２１】上記構成において、図１（ａ）のコンロッ
ド１を、炭素鋼よりも密度の低いチタン合金のような軽
量材料で製作することでコンロッド１自体が軽量化され
ると同時に、コンロッド小端部４の摺動内面４ａに形成
した溶射被膜５により、摺動特性をも優れたものとでき
る。しかも、溶射被膜５を線爆溶射によって形成したの
で、基体であるコンロッド１との密着力が強くなる結
果、図１（ｂ）に示した従来のコンロッド２０のように
コンロッド小端部２３の寸法を大きくしなくとも、図１
（ａ）のコンロッド小端４の硬度および機械的強度を十
分に確保することができる。In the above structure, the connecting rod 1 shown in FIG. 1A is made of a lightweight material such as a titanium alloy having a lower density than carbon steel, so that the connecting rod 1 itself is reduced in weight and at the same time, the connecting rod small end is formed. The thermal spray coating 5 formed on the sliding inner surface 4a of the portion 4 can also improve the sliding characteristics. Moreover, since the thermal spray coating 5 is formed by wire explosion spraying, the adhesion to the connecting rod 1 as a substrate is increased, and as a result, the dimension of the connecting rod small end 23 is reduced as in the conventional connecting rod 20 shown in FIG. Fig. 1
The hardness and mechanical strength of the connecting rod small end 4 of (a) can be sufficiently ensured.
【００２２】以上本発明の一実施形態について説明した
が、本発明は上記実施形態に限られることなく、本発明
の主旨を損なわない限り、種々変更して実施可能であ
る。例えばコンロッド１自体を形成する材料としてチタ
ン合金のみならず、これと同等の強度と軽量性を有する
材料であれば他のものを用いてもよい。端部２，４の摺
動内面に形成する溶射被膜の材料も、モリブデンや銅の
ほか、ピストンピンを形成する鉄鋼材料との摺動性を発
揮する銀、カドミウム、インジウム、タリウム、鉛、ま
たはこれらの合金を用いてもよい。Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented with various modifications without impairing the gist of the present invention. For example, as the material for forming the connecting rod 1 itself, not only a titanium alloy, but any other material having the same strength and lightness as this may be used. The material of the thermal spray coating formed on the sliding inner surfaces of the ends 2 and 4 is also made of silver, cadmium, indium, thallium, lead, or molybdenum or copper, which exhibits a sliding property with the steel material forming the piston pin. These alloys may be used.
【００２３】[0023]
【発明の効果】以上のように、本発明にかかるエンジン
のコンロッドによれば、コンロッド自体を構成する材料
と無関係に、コンロッド端部の摺動内面での摺動特性を
優れたものにできる。したがって、コンロッドを軽量材
料で形成することにより、軽量で、かつ摺動特性に優れ
たコンロッドを得ることができる。また、前記コンロッ
ド端部の摺動内面の溶射被膜は線爆溶射により形成され
るから、コンロッド自体との密着力が他の被膜形成手段
と比べて強いので、長期にわたるエンジン稼動によって
も剥離するおそれがなく、優れた摺動特性を長期にわた
って持続できる。As described above, according to the connecting rod of the engine according to the present invention, the sliding characteristics of the connecting rod end at the sliding inner surface can be improved irrespective of the material constituting the connecting rod itself. Therefore, by forming the connecting rod with a lightweight material, it is possible to obtain a connecting rod that is lightweight and has excellent sliding characteristics. Further, since the thermal spray coating on the sliding inner surface at the end of the connecting rod is formed by wire explosion spraying, the adhesive strength with the connecting rod itself is stronger than that of other coating forming means. And excellent sliding characteristics can be maintained for a long period of time.
【図１】本発明の一実施形態にかかるエンジンのコンロ
ッドの概略図である。FIG. 1 is a schematic view of a connecting rod of an engine according to an embodiment of the present invention.
【図２】本発明の一実施形態にかかるエンジンのコンロ
ッド端部の摺動内面に溶射被膜を形成する線爆溶射装置
の概略図である。FIG. 2 is a schematic view of a wire explosion spraying apparatus for forming a spray coating on a sliding inner surface of an end of a connecting rod of an engine according to an embodiment of the present invention.
【図３】線爆溶射方法の手順を示す概略工程図である。FIG. 3 is a schematic process chart showing a procedure of a wire explosion spraying method.
１…コンロッド、２…コンロッド大端部、３…桿部、４
…コンロッド小端部、５…溶射被膜、６…線材溶射装
置、１０…溶射線材。1 ... connecting rod, 2 ... big end of connecting rod, 3 ... rod, 4
... Small end of connecting rod, 5 ... Sprayed coating, 6 ... Wire spraying device, 10 ... Sprayed wire.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3J033 AA05 AB03 AC01 GA01 GA07 4K031 AA02 AB02 CB33 CB35 DA06 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3J033 AA05 AB03 AC01 GA01 GA07 4K031 AA02 AB02 CB33 CB35 DA06
Claims (3)
部の摺動内面に、線爆溶射により摺動性に優れた材料か
らなる溶射被膜が形成されたエンジンのコンロッド。1. A connecting rod of an engine in which a spray coating made of a material having excellent slidability is formed on a sliding inner surface of a connecting rod end portion of the piston engine by wire explosion spraying.
膜を形成する材料はモリブデンもしくは銅であるエンジ
ンのコンロッド。2. The connecting rod of an engine according to claim 1, wherein the connecting rod is made of a titanium alloy, and a material forming the thermal spray coating is molybdenum or copper.
のコンロッド。3. The connecting rod of an engine according to claim 1, wherein the connecting rod end is a connecting rod small end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001131108A JP2002327732A (en) | 2001-04-27 | 2001-04-27 | Connecting rod of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001131108A JP2002327732A (en) | 2001-04-27 | 2001-04-27 | Connecting rod of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002327732A true JP2002327732A (en) | 2002-11-15 |
Family
ID=18979352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001131108A Pending JP2002327732A (en) | 2001-04-27 | 2001-04-27 | Connecting rod of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002327732A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006059595A1 (en) * | 2004-11-30 | 2006-06-08 | Japan Science And Technology Agency | Method of producing connecting rod with bearing, and connecting rod with bearing |
| JP2006308027A (en) * | 2005-04-28 | 2006-11-09 | Yamaha Motor Co Ltd | Connecting rod, manufacturing method thereof, internal combustion engine, automobile |
| US8479704B2 (en) | 2009-04-30 | 2013-07-09 | Yamaha Hatsudoki Kabushiki Kaisha | Sliding component for internal combustion engine, internal combustion engine, transporter, and method for producing the sliding component for internal combustion engine |
-
2001
- 2001-04-27 JP JP2001131108A patent/JP2002327732A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006059595A1 (en) * | 2004-11-30 | 2006-06-08 | Japan Science And Technology Agency | Method of producing connecting rod with bearing, and connecting rod with bearing |
| JPWO2006059595A1 (en) * | 2004-11-30 | 2008-06-05 | 独立行政法人科学技術振興機構 | Manufacturing method of connecting rod with bearing and connecting rod with bearing |
| JP4560054B2 (en) * | 2004-11-30 | 2010-10-13 | 独立行政法人科学技術振興機構 | Manufacturing method of connecting rod with bearing |
| US7836592B2 (en) | 2004-11-30 | 2010-11-23 | Japan Science And Technology Agency | Method of producing connecting rod with bearing |
| JP2006308027A (en) * | 2005-04-28 | 2006-11-09 | Yamaha Motor Co Ltd | Connecting rod, manufacturing method thereof, internal combustion engine, automobile |
| US8479704B2 (en) | 2009-04-30 | 2013-07-09 | Yamaha Hatsudoki Kabushiki Kaisha | Sliding component for internal combustion engine, internal combustion engine, transporter, and method for producing the sliding component for internal combustion engine |
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