JPH07238919A - Small end shape of connecting rod and work method therefor - Google Patents
Small end shape of connecting rod and work method thereforInfo
- Publication number
- JPH07238919A JPH07238919A JP6052781A JP5278194A JPH07238919A JP H07238919 A JPH07238919 A JP H07238919A JP 6052781 A JP6052781 A JP 6052781A JP 5278194 A JP5278194 A JP 5278194A JP H07238919 A JPH07238919 A JP H07238919A
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- piston pin
- small end
- pin boss
- piston
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J7/00—Piston-rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は往復動式エンジンのピス
トンとクランクシャフトを連結するコンロッドに係り、
詳しくは、ピストンに設けるピストンピンボスの幅を充
分に確保できるようにしたコンロッドの小端形状および
その加工方向に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting rod for connecting a piston and a crankshaft of a reciprocating engine,
More specifically, the present invention relates to a small end shape of a connecting rod capable of ensuring a sufficient width of a piston pin boss provided on a piston and a processing direction thereof.
【０００２】[0002]
【従来の技術】コンロッドの大小端間に働く荷重は、圧
縮荷重に対して引張荷重が小さくなっている。このよう
な事態に鑑みて、図４に示したようにコンロッドａの小
端に形成されたピストンピンボスｂの側面ｃを先端に至
るにつれて中央側に偏位する傾斜面で構成して小端部を
先細りの楔状に形成したうえで、側面ｃの先端（上端）
を平面で面取り加工ｄしたものがある。ｆはピストンｅ
に形成したピストンピンボスであり、このピストンピン
ボスｆとコンロッドａのピストンピンボスｂに図示しな
いピストンピンを挿通してピストンｅをコンロッドａの
小端部に取り付けるようにしている。2. Description of the Related Art The load acting between the large and small ends of a connecting rod is such that the tensile load is smaller than the compressive load. In view of such a situation, as shown in FIG. 4, the side surface c of the piston pin boss b formed at the small end of the connecting rod a is configured with an inclined surface that is displaced toward the center side toward the tip, and the small end portion is formed. After forming the tapered wedge shape, the tip of the side surface c (upper end)
Is chamfered with a flat surface. f is piston e
The piston e is attached to the small end of the connecting rod a by inserting a piston pin (not shown) through the piston pin boss f and the piston pin boss b of the connecting rod a.
【０００３】このようにコンロッドａの小端部を楔状に
形成した場合は、コンロッドａの重量を軽減することが
でき、しかも、ピストンｅをより中心に近い部分で支え
ることができるために、ピストンｅに生じる機械的応力
を減少させることができるとともに、ピストンピンを短
く軽量化できる点で優れている。また、面取り加工ｄを
施しているために、ピストンｅに設けるピストンピンボ
スｆの幅を確保し易い利点がある。If the small end of the connecting rod a is formed in a wedge shape as described above, the weight of the connecting rod a can be reduced, and the piston e can be supported at a portion closer to the center. It is excellent in that the mechanical stress generated in e can be reduced and the piston pin can be shortened and lightened. Further, since the chamfering process d is performed, there is an advantage that the width of the piston pin boss f provided on the piston e can be easily secured.
【０００４】しかしながら、上記のように側面ｃの先端
に面取り加工ｄを行なったとしても、この面取り加工ｄ
の両端下部の角部ｇ（図５参照）がコンロッドａの首振
り運動でピストンｅのピストンピンボスｆの内端部と干
渉する。従って、従来では図４に示したようにピストン
ｅに形成されるピストンピンボスｆの内端部に逃げを設
けて干渉を予防する必要性があった（図４の二点鎖線は
逃げを設ける前の状態を示している）。なお、この逃げ
によってピストンピンボスｆの幅が減少して応力が増加
するために、従来では図示しないピストンピンを上記逃
げに相当する分だけ長くしてピストンピンボスｆの応力
の増加を予防する必要性があり、コンロッドａの小端部
を楔状に形成したことによる軽量化効果が損なわれると
いう不具合があった。However, even if the tip of the side surface c is chamfered as described above, the chamfering d is performed.
The lower corners g (see FIG. 5) of both ends of the piston interfere with the inner end of the piston pin boss f of the piston e due to the swinging motion of the connecting rod a. Therefore, conventionally, it was necessary to provide a clearance at the inner end portion of the piston pin boss f formed on the piston e as shown in FIG. 4 to prevent interference (the two-dot chain line in FIG. 4 is before the clearance is provided). Is shown). Since the width of the piston pin boss f is reduced and the stress is increased by this escape, it is necessary to prevent the increase of the stress of the piston pin boss f by lengthening a piston pin (not shown) in the related art by the amount corresponding to the escape. However, there is a problem in that the effect of weight reduction due to the wedge-shaped formation of the small end of the connecting rod a is impaired.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記実情に鑑
みてなされたものであり、ピストンピンを短く軽量化し
つつ、ピストンに設けるピストンピンボスの応力を適正
範囲内に保持できるコンロッドの小端形状を提供すると
ともに、コンロッドの小端部の加工性を高くすることを
課題としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a small end shape of a connecting rod that can keep the stress of a piston pin boss provided on a piston within an appropriate range while shortening and reducing the weight of the piston pin. And the workability of the small end portion of the connecting rod is improved.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に本発明は、ピストンピンボスの側面を先端に至るにつ
れて中央側に偏位する傾斜面で構成して小端部を先細り
の楔状に形成している。また、傾斜面により形成された
側面の先端縁をピストンピンボスの軸芯に斜交する直線
を中心とする円錐面で面取りしたことを特徴としてい
る。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a side surface of a piston pin boss which is formed as an inclined surface which is displaced toward the center toward the tip, and a small end portion is formed in a tapered wedge shape. is doing. Further, it is characterized in that the tip end edge of the side surface formed by the inclined surface is chamfered with a conical surface centered on a straight line obliquely intersecting the axis of the piston pin boss.
【０００７】また本発明は、内周面に切刃を設けた円錐
台もしくは円錐状の凹部を正面に形成したカッタを用
い、このカッタの回転軸をピストンピンボスの側面に直
交させて前記側面の先端縁を面取り加工することを特徴
としている。Further, according to the present invention, a cutter having a truncated cone provided with a cutting edge on the inner peripheral surface or a conical concave portion formed on the front surface is used, and the rotation axis of the cutter is made orthogonal to the side surface of the piston pin boss so that the side surface It is characterized by chamfering the tip edge.
【０００８】さらに本発明は、内周の円錐面および底面
に切刃を設けた円錐台状の凹部を正面に形成したカッタ
を用い、該カッタの回転軸をピストンピンボスの側面に
直交させて前記側面および側面の先端縁を同時加工する
ことを特徴としている。Further, according to the present invention, a cutter having a truncated cone-shaped concave portion provided with cutting blades on the inner peripheral conical surface and the bottom surface is used, and the rotating shaft of the cutter is made orthogonal to the side surface of the piston pin boss. The feature is that the side surface and the leading edge of the side surface are simultaneously processed.
【０００９】[0009]
【作用】コンロッドの小端を先細りの楔状に形成したう
えで、傾斜面で構成されているピストンピンボスの側面
の先端縁を円錐面で面取りしているために、面取りの両
端下部に角部が形成されることがなく、コンロッドとの
干渉を避けるべくピストンに設けるピストンピンボスの
内端部に逃げを設ける必要性がない。従って、従来のよ
うな逃げによるピストンピンボスの長さの減少がなく、
ピストンに設けるピストンピンボスの応力の増加を伴う
ことなくコンロッドの小端部を楔状に形成したことによ
る軽量化効果を発揮させることができる。[Operation] Since the small end of the connecting rod is formed in a tapered wedge shape, and the tip end edge of the side surface of the piston pin boss, which is an inclined surface, is chamfered with a conical surface, corners are formed at both lower ends of the chamfer. It is not formed, and there is no need to provide a clearance at the inner end of the piston pin boss provided on the piston to avoid interference with the connecting rod. Therefore, there is no reduction in the length of the piston pin boss due to escape unlike in the past,
The weight reduction effect can be exhibited by forming the small end portion of the connecting rod in a wedge shape without increasing the stress of the piston pin boss provided on the piston.
【００１０】また、本発明によれば、コンロッドのピス
トンピンボスの側面の先端縁を面取り加工するカッタの
回転軸をピストンピンボスの側面に直交させて側面の先
端縁を面取りするようにしているために、コンロッドの
小端下側に対してカッタ切刃が大きく遠のくことにな
る。従って、コンロッドの小端下側の形状に左右される
ことなく先端縁の面取りを行なうことが可能となる。Further, according to the present invention, the rotating shaft of the cutter for chamfering the side end edge of the piston pin boss of the connecting rod is made orthogonal to the side surface of the piston pin boss to chamfer the side end edge. , The cutter blade will be far away from the lower end of the connecting rod. Therefore, the chamfering of the tip edge can be performed without being affected by the shape of the lower side of the small end of the connecting rod.
【００１１】さらに本発明によれば、コンロッド小端の
側面および外側面の先端縁を同時に加工できるために、
コンロッドの小端部の加工性が高くなる。Further, according to the present invention, since the side edges of the connecting rod small end and the tip edges of the outer side can be simultaneously processed,
The workability of the small end of the connecting rod is improved.
【００１２】[0012]
【実施例】以下に本発明に係るコンロッドの小端形状お
よびその加工方法を図に基づいて詳細に説明する。図１
は本発明に係るコンロッドの小端形状の一実施例を示す
面取り加工状態の断面図、図２は図１に示したコンロッ
ドの小端部の側面図、図３は図１に示したコンロッドを
ピストンに組付けた断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The small end shape of a connecting rod according to the present invention and its processing method will be described in detail below with reference to the drawings. Figure 1
1 is a cross-sectional view of a chamfered state showing an embodiment of the small end shape of the connecting rod according to the present invention, FIG. 2 is a side view of the small end portion of the connecting rod shown in FIG. 1, and FIG. 3 is the connecting rod shown in FIG. It is sectional drawing assembled to the piston.
【００１３】これらの図において、コンロッド１の小端
に設けたピストンピンボス２とピストン３に設けたピス
トンピンボス４に図示しないピストンピンを挿通してコ
ンロッド１の小端部をピストン３に結合している。な
お、コンロッド１の大端部は図示しないクランクピンに
取り付けられる。In these figures, a piston pin (not shown) is inserted into a piston pin boss 2 provided on the small end of the connecting rod 1 and a piston pin boss 4 provided on the piston 3 to connect the small end of the connecting rod 1 to the piston 3. There is. The large end of the connecting rod 1 is attached to a crank pin (not shown).
【００１４】また、コンロッド１の小端部に形成された
ピストンピンボス２の側面５を、それぞれ先端に至るに
つれて中央側に偏位する傾斜面で構成して小端部を先細
りの楔状に形成している。従って、コンロッド１の重量
を軽減できるとともに、ピストン３をより中心に近い部
分で支えてピストン３に生じる機械的応力を減少させる
ことができ、しかも、図示しないピストンピンを短く軽
量化できる。Further, the side surface 5 of the piston pin boss 2 formed at the small end portion of the connecting rod 1 is formed by an inclined surface which is displaced toward the center side toward the tip, and the small end portion is formed into a tapered wedge shape. ing. Therefore, the weight of the connecting rod 1 can be reduced, the mechanical stress generated in the piston 3 can be reduced by supporting the piston 3 at a portion closer to the center, and the piston pin (not shown) can be shortened and lightened.
【００１５】さらに本実施例においては、前記側面５の
先端縁をピストンピンボス２の軸芯６に斜交する直線を
回転軸７とする円錐面で面取り加工８することにより、
コンロッド１の小端部とピストン３の干渉を回避するよ
うにしている。Further, in the present embodiment, the chamfering process 8 is performed by the conical surface having the rotation axis 7 as a straight line diagonally intersecting the tip end edge of the side surface 5 with the axis 6 of the piston pin boss 2.
The small end of the connecting rod 1 and the piston 3 are prevented from interfering with each other.
【００１６】詳しくは、図示しない切刃を内周面および
底面に設けた円錐台状の凹部９を正面に形成したカッタ
１０を用い、このカッタ１０の回転軸７をピストンピン
ボス２の側面５に直交させつつピストンピンボス２の軸
芯６よりも大端側にオフセットさせることにより、前記
側面５と該側面５の先端縁を同時に加工するようにして
いる。More specifically, a cutter 10 having a frustoconical recess 9 provided with a cutting edge (not shown) on the inner peripheral surface and the bottom surface is used, and a rotary shaft 7 of the cutter 10 is provided on a side surface 5 of the piston pin boss 2. By offsetting the piston pin boss 2 toward the larger end side than the axis 6 of the boss 2 while making them orthogonal to each other, the side surface 5 and the front end edge of the side surface 5 are simultaneously processed.
【００１７】以上のような構成において、コンロッド１
の小端は先細りの楔状に形成され、しかも、ピストンピ
ンボス２の側面５の先端縁を円錐面で面取り加工８して
いる。従って、従来のようにピストン３のピストンピン
ボス４の内端部に逃げを設けてコンロッド１との干渉を
予防する必要性がない。このために、従来のように応力
を犠牲にし、あるいはピストンピンの小型軽量化を犠牲
にしてまでピストンピンボス４の内端部を逃げを設ける
必要性がなく、小端部を楔状に形成したことによる軽量
化効果が損なわれることがない。In the structure as described above, the connecting rod 1
Is formed in a tapered wedge shape, and the tip end edge of the side surface 5 of the piston pin boss 2 is chamfered 8 by a conical surface. Therefore, there is no need to prevent the interference with the connecting rod 1 by providing a clearance at the inner end portion of the piston pin boss 4 of the piston 3 as in the conventional case. For this reason, it is not necessary to provide the inner end portion of the piston pin boss 4 with a relief until the stress is sacrificed or the size and weight of the piston pin are sacrificed as in the prior art, and the small end portion is formed in a wedge shape. The weight reduction effect due to is not impaired.
【００１８】また、本実施例のように切刃を内周面およ
び底面に設けた円錐台状の凹部９を正面に形成したカッ
タ１０を用い、このカッタ１０の回転軸７をピストンピ
ンボス８の側面５に直交させて側面５および該側面５の
先端縁を面取り加工８するようにした場合は、小端部の
加工性が高くなるが、通常の正面フライスなどを用いて
側面５を加工した後に、円錐状の凹部を設けたカッタを
用いて側面５の先端縁を面取り加工８するようにしてカ
ッタの形状を簡易化することもできる。Further, as in this embodiment, a cutter 10 having a truncated cone-shaped concave portion 9 having a cutting edge provided on the inner peripheral surface and the bottom surface is formed on the front surface, and the rotary shaft 7 of the cutter 10 is connected to the piston pin boss 8. When the side surface 5 and the leading edge of the side surface 5 are chamfered 8 so as to be orthogonal to the side surface 5, the workability of the small end portion is improved, but the side surface 5 is processed using a normal face milling machine or the like. After that, the shape of the cutter can be simplified by chamfering the tip edge of the side surface 5 by using a cutter provided with a conical recess.
【００１９】さらに、本発明においてはカッタ１０の回
転軸７をピストンピンボス２の側面５に直交させて側面
５の先端縁を円弧状に面取り８するようにしているため
に、コンロッド１の小端下側に対してカッタ切刃が大き
く遠のくことになる。従って、コンロッド１の小端下側
の形状に左右されることなく先端縁の面取りを行なうこ
とが可能となる。Further, in the present invention, since the rotary shaft 7 of the cutter 10 is orthogonal to the side surface 5 of the piston pin boss 2 and the tip edge of the side surface 5 is chamfered in an arc shape, the small end of the connecting rod 1 is formed. The cutter cutting edge will be far away from the bottom side. Therefore, the chamfering of the tip edge can be performed without being influenced by the shape of the connecting rod 1 below the small end.
【００２０】なお、実施例のようにカッタ１０の回転軸
７をピストンピンボス２の軸芯６より大端側にオフセッ
トさせた場合は、コンロッド１の小端下側とカッタ切刃
の間隔をより大きくすることができる利点がある。さら
に、実施例ではいわゆる成型フライスでカッタ１０を構
成しているが、植刃式のカッタを用いることもできる。When the rotary shaft 7 of the cutter 10 is offset to the larger end side than the shaft core 6 of the piston pin boss 2 as in the embodiment, the distance between the lower cutting end of the connecting rod 1 and the cutter cutting edge is further increased. There is an advantage that it can be increased. Further, in the embodiment, the cutter 10 is configured by a so-called molding milling cutter, but a cutting blade type cutter can also be used.
【００２１】[0021]
【発明の効果】以上の説明から明らかなように本発明に
よれば、ピストンに設けるピストンピンボスの応力の増
加を伴うことなくコンロッドの小端部を楔状に形成した
ことによる軽量化効果を発揮させることができる。ま
た、本発明に係る加工方法によれば、コンロッドの小端
部の側面の先端縁を効率よく円弧状に面取り加工するこ
とができる。As is apparent from the above description, according to the present invention, the weight saving effect can be achieved by forming the small end portion of the connecting rod in a wedge shape without increasing the stress of the piston pin boss provided on the piston. be able to. Also, according to the processing method of the present invention, the tip edge of the side surface of the small end portion of the connecting rod can be efficiently chamfered into an arc shape.
【図１】本発明に係るコンロッドの小端形状の一実施例
を示す面取り加工状態の断面図である。FIG. 1 is a cross-sectional view of a chamfered state showing an example of a small end shape of a connecting rod according to the present invention.
【図２】図１に示したコンロッドの小端部の側面図であ
る。FIG. 2 is a side view of a small end portion of the connecting rod shown in FIG.
【図３】図１に示したコンロッドをピストンに組付けた
断面図である。FIG. 3 is a cross-sectional view of the connecting rod shown in FIG. 1 assembled to a piston.
【図４】従来例の小端形状を備えたにコンロッドをピス
トンに組付けた断面図である。FIG. 4 is a cross-sectional view in which a connecting rod having a small end shape of a conventional example is assembled to a piston.
【図５】図４に示したコンロッドの小端部の側面図であ
る。5 is a side view of a small end portion of the connecting rod shown in FIG. 4. FIG.
１ コンロッド ２ ピストンピンボス ３ ピストン ４ ピストンピンボス ５ 側面 ６ ピストンピンボス２の軸芯 ７ カッタの回転軸 ８ 面取り加工 ９ 凹部 １０ カッタ 1 Connecting Rod 2 Piston Pin Boss 3 Piston 4 Piston Pin Boss 5 Side 6 Shaft Center of Piston Pin Boss 7 Rotating Shaft of Cutter 8 Chamfering 9 Recess 10 Cutter
Claims (3)
つれて中央側に偏位する傾斜面で構成して小端部を先細
りの楔状に形成するとともに、前記傾斜面により形成さ
れた側面の先端縁をピストンピンボスの軸芯に斜交する
直線を回転軸とする円錐面で面取りしたことを特徴とす
るコンロッドの小端形状。1. The side surface of the piston pin boss is formed by an inclined surface that is displaced toward the center side toward the tip to form a small end in a tapered wedge shape, and the tip edge of the side surface formed by the inclined surface is formed. A small end shape of a connecting rod characterized by chamfering with a conical surface whose axis of rotation is a straight line that obliquely intersects the axis of the piston pin boss.
錐状の凹部を正面に形成したカッタを用い、該カッタの
回転軸をピストンピンボスの側面に直交させて前記側面
の先端縁を面取り加工することを特徴とするコンロッド
小端の加工方法。2. A cutter having an inner peripheral surface provided with a cutting edge or a conical recess formed on the front surface is used, and the rotation axis of the cutter is made orthogonal to the side surface of the piston pin boss so that the tip edge of the side surface is formed. A method for processing a small end of a connecting rod characterized by chamfering.
円錐台状の凹部を正面に形成したカッタを用い、該カッ
タの回転軸をピストンピンボスの側面に直交させて前記
側面および側面の先端縁を同時加工することを特徴とす
るコンロッド小端の加工方法。3. A cutter having a frustoconical recess provided with cutting blades on the inner peripheral conical surface and the bottom surface is used, and the rotation axis of the cutter is orthogonal to the side surface of the piston pin boss, and the side surface and the side surface. A method for processing a small end of a connecting rod, which is characterized by simultaneously processing the front edge of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6052781A JP3020407B2 (en) | 1994-02-25 | 1994-02-25 | Small end shape of connecting rod and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6052781A JP3020407B2 (en) | 1994-02-25 | 1994-02-25 | Small end shape of connecting rod and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07238919A true JPH07238919A (en) | 1995-09-12 |
| JP3020407B2 JP3020407B2 (en) | 2000-03-15 |
Family
ID=12924397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6052781A Expired - Fee Related JP3020407B2 (en) | 1994-02-25 | 1994-02-25 | Small end shape of connecting rod and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3020407B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006054140A1 (en) * | 2004-11-16 | 2006-05-26 | Mahle Technology, Inc. | Method of manufacturing a connecting rod assembly for an internal combustion engine |
| WO2006054142A1 (en) * | 2004-11-16 | 2006-05-26 | Mahle Technology, Inc. | Connecting rod assembly for an internal combustion engine and method of manufacturing same |
| CN102950315A (en) * | 2012-11-19 | 2013-03-06 | 无锡市京锡冶金液压机电有限公司 | Initial milling method of engine connecting rod |
| CN106270704A (en) * | 2016-08-29 | 2017-01-04 | 东方电气(广州)重型机器有限公司 | A kind of method that milling cutter shaped for boss and boss shape |
| CN107225276A (en) * | 2017-08-04 | 2017-10-03 | 承德苏垦银河连杆有限公司 | One kind processing connecting rod both ends of the surface drop band inner bore chamfering compound tool |
-
1994
- 1994-02-25 JP JP6052781A patent/JP3020407B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006054140A1 (en) * | 2004-11-16 | 2006-05-26 | Mahle Technology, Inc. | Method of manufacturing a connecting rod assembly for an internal combustion engine |
| WO2006054142A1 (en) * | 2004-11-16 | 2006-05-26 | Mahle Technology, Inc. | Connecting rod assembly for an internal combustion engine and method of manufacturing same |
| JP2008520928A (en) * | 2004-11-16 | 2008-06-19 | マーレ テクノロジー インコーポレイテッド | Connecting rod assembly for internal combustion engine and method of manufacturing the same |
| JP2008520927A (en) * | 2004-11-16 | 2008-06-19 | マーレ テクノロジー インコーポレイテッド | Method of manufacturing a connecting rod assembly for an internal combustion engine |
| JP4838808B2 (en) * | 2004-11-16 | 2011-12-14 | マーレ テクノロジー インコーポレイテッド | Method of manufacturing a connecting rod assembly for an internal combustion engine |
| JP4909280B2 (en) * | 2004-11-16 | 2012-04-04 | マーレ テクノロジー インコーポレイテッド | Connecting rod assembly for internal combustion engine and method of manufacturing the same |
| CN102950315A (en) * | 2012-11-19 | 2013-03-06 | 无锡市京锡冶金液压机电有限公司 | Initial milling method of engine connecting rod |
| CN106270704A (en) * | 2016-08-29 | 2017-01-04 | 东方电气(广州)重型机器有限公司 | A kind of method that milling cutter shaped for boss and boss shape |
| CN107225276A (en) * | 2017-08-04 | 2017-10-03 | 承德苏垦银河连杆有限公司 | One kind processing connecting rod both ends of the surface drop band inner bore chamfering compound tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3020407B2 (en) | 2000-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH1029108A (en) | Throwaway type drill and drill tip | |
| JPH07238919A (en) | Small end shape of connecting rod and work method therefor | |
| US20050002786A1 (en) | Hollow fan blade for turbine engine and method of manufacturing such a blade | |
| KR920008792B1 (en) | Twist drill | |
| GB2106193A (en) | Turbomachine rotor blade | |
| JP2614776B2 (en) | Cam shaft | |
| JPH09177758A (en) | Plain bearing | |
| JP2010164074A (en) | Crankshaft | |
| JP2564423Y2 (en) | Crankshaft | |
| JPH10128611A (en) | Ball end mill | |
| JPS63243570A (en) | Piston pin for internal combustion engine | |
| JP4801254B2 (en) | Crankshaft pin journal R groove machining method and crankshaft | |
| KR0140258Y1 (en) | Cutter | |
| JP2008018522A (en) | Insert for pin mirror cutter and pin mirror cutter | |
| KR20020064131A (en) | Hemispherical insert for milling machines | |
| JP4186795B2 (en) | Pin mirror cutter and throw-away tip attached to it | |
| JPH042737Y2 (en) | ||
| KR200160356Y1 (en) | Shaft for distributor | |
| JP2010071295A (en) | Rotation balancer of engine | |
| JPS60195301A (en) | Bucket coupling structure | |
| JP2005330925A (en) | Bearing structure of cylinder block | |
| JPS59209050A (en) | Squirrel-cage rotor | |
| JP2505567Y2 (en) | Material of ceramic vortex chamber | |
| JPH02249710A (en) | Suspension arm structure | |
| JPH0828223A (en) | Spring receiver for valve system in internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080114 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100114 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |