JPH1193762A - Cylinder liner - Google Patents

Cylinder liner

Info

Publication number
JPH1193762A
JPH1193762A JP25497897A JP25497897A JPH1193762A JP H1193762 A JPH1193762 A JP H1193762A JP 25497897 A JP25497897 A JP 25497897A JP 25497897 A JP25497897 A JP 25497897A JP H1193762 A JPH1193762 A JP H1193762A
Authority
JP
Japan
Prior art keywords
grinding
cylinder liner
piston
worked
sliding surface
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
Application number
JP25497897A
Other languages
Japanese (ja)
Other versions
JP3858375B2 (en
Inventor
Shigeru Sawake
茂 佐分
Yasuhiro Tadaishi
保弘 只石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP25497897A priority Critical patent/JP3858375B2/en
Publication of JPH1193762A publication Critical patent/JPH1193762A/en
Application granted granted Critical
Publication of JP3858375B2 publication Critical patent/JP3858375B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/18Other cylinders
    • F02F1/20Other cylinders characterised by constructional features providing for lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PROBLEM TO BE SOLVED: To shorten the running-in time by forming worked lines right-angled to the moving direction of a piston on the sliding surface of the cylinder liner of an internal combustion engine by grinding, removing the projections of the worked lines by finishing work to set the central line average roughness within a specified value. SOLUTION: Worked lines 3 right-angled to the moving direction 4 of a piston are formed on the sliding surface 2 of a cylinder liner 1 by grinding. The acute initial surface roughness after grinding is finished by a hand grinder with sand paper to remove the projections so that the central average roughness is 0.4 μm or less. Thus, the oil film forming performance of the cylinder liner 1 is improved, and the running-in is shortened. As the grinding method for forming the worked lines 3 at a right-angle to the moving direction of the piston, a grinding work by moving a grinding wheel only in one direction with a small pitch is adapted, instead of a grinding work by rotating and vertically moving the grinding wheel.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ディーゼル機関な
どの往復摺動する内燃機関のシリンダライナに関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder liner for a reciprocating sliding internal combustion engine such as a diesel engine.

【0002】[0002]

【従来の技術】図8はディーゼルエンジンの部分断面図
である。図において、aはディーゼルエンジンである。
bはシリンダヘッドであり、cはシリンダライナであ
る。dはシリンダジャケット、eはピストン、fは排気
弁である。
FIG. 8 is a partial sectional view of a diesel engine. In the figure, a is a diesel engine.
b is a cylinder head and c is a cylinder liner. d is a cylinder jacket, e is a piston, and f is an exhaust valve.

【0003】図9は従来のシリンダライナの摺動面の展
開図である。図において、gはシリンダライナcの摺動
面である。この摺動面gには、研削加工によりピストン
の運動方向iに対して、90°よりも小さい角度で、2
方向から交差するように加工目hが付けられている(以
下「交差加工目」という)。交差加工目hは、従来のホ
ーニング機械などで研削加工する場合、砥石を回転さ
せ、上下方向に移動させながら研削加工する関係で生じ
るものである。
FIG. 9 is a developed view of a sliding surface of a conventional cylinder liner. In the figure, g is the sliding surface of the cylinder liner c. This sliding surface g is formed by grinding at an angle smaller than 90 ° with respect to the movement direction i of the piston.
A processing h is provided so as to intersect from the direction (hereinafter, referred to as “intersection processing”). The cross processing h occurs when grinding is performed by a conventional honing machine or the like in such a manner that the grinding wheel is rotated and moved up and down to perform grinding.

【0004】[0004]

【発明が解決しようとする課題】上述したシリンダライ
ナにおいては、シリンダライナの摺動面に、交差加工目
が付いているため、ピストンリングとシリンダライナと
の間の油膜形成能力が低く、油膜が破断されやすい。従
来、研削加工後の初期表面粗さの突起部も油膜を破断さ
せやすく、いずれも、シリンダライナの過大摩耗や焼き
付きを誘発する。また、粗さの突起部を除去するにはピ
ストンリングとシリンダライナとのすり合わせ運転を長
時間かけて慎重に行わなければならずコスト高になるな
どの問題がある。
In the above-described cylinder liner, since the sliding surface of the cylinder liner has a cross-cut, the ability to form an oil film between the piston ring and the cylinder liner is low, and the oil film is reduced. Easy to break. Conventionally, a projection having an initial surface roughness after grinding tends to break the oil film, and all of them cause excessive wear and seizure of the cylinder liner. In addition, in order to remove the roughness projection, there is a problem in that the grinding operation between the piston ring and the cylinder liner must be performed carefully over a long period of time, resulting in an increase in cost.

【0005】本発明は、上記のような問題点を解決する
ために創案されたもので、シリンダライナの潤滑性能を
向上させ、かつ、すり合わせ運転時間の短縮化を図るこ
とができるシリンダライナを提供することを目的とす
る。
The present invention has been made to solve the above problems, and provides a cylinder liner capable of improving the lubrication performance of the cylinder liner and shortening the operation time for the grinding operation. The purpose is to do.

【0006】[0006]

【課題を解決するための手段】本発明によれば、内燃機
関のシリンダライナであって、該シリンダライナの摺動
面は、研削加工によりピストンの運動方向に対して、直
角方向の加工目が付けられており、加工目の突起を仕上
加工により除去して中心線平均粗さ(Ra)が、0.4
μm以下となるようにしたシリンダライナが提供され
る。
According to the present invention, there is provided a cylinder liner for an internal combustion engine, wherein the sliding surface of the cylinder liner is formed by grinding so that a machining direction perpendicular to the direction of movement of the piston is formed. The center line average roughness (Ra) is 0.4
A cylinder liner is provided that is less than or equal to μm.

【0007】次に本発明の作用について説明する。実機
におけるシリンダライナの摺動面の中心線平均粗さ(R
a)は、一般に、0.5μm〜0.6μm程度である
が、これをすり合わせ運転により0.4μm程度までに
仕上げている。そこで、本願発明の発明者らは、すり合
わせ運転に先だち加工目の突起を除去すれば、研削加工
の時間はかかるがすり合わせ運転時間を短縮することが
でき、しかも、焼き付き防止になることに着目した。そ
して、本願発明の発明者らが実験した結果、前記シリン
ダライナの摺動面の表面粗さについては、シリンダライ
ナの摺動面の加工目を、ピストンの運動方向に対して、
直角方向に付けるとともに、中心線平均粗さ(Ra)
が、0.4μm以下となるように加工目の突起を除去す
るように仕上げるとシリンダライナの油膜形成能力の向
上を図ることができることがわかった。
Next, the operation of the present invention will be described. The center line average roughness of the sliding surface of the cylinder liner (R
a) is generally about 0.5 μm to 0.6 μm, but this is finished to about 0.4 μm by a grinding operation. Therefore, the inventors of the present invention focused on the fact that if the projections of the processing eyes were removed before the grinding operation, the grinding operation time could be reduced, but the grinding operation time could be reduced, and furthermore, seizure was prevented. . And, as a result of experiments conducted by the inventors of the present invention, regarding the surface roughness of the sliding surface of the cylinder liner, the machining of the sliding surface of the cylinder liner was performed with respect to the movement direction of the piston.
Attached in the right angle direction and center line average roughness (Ra)
However, it has been found that when the finishing is performed so as to remove the projections of the processing so as to be 0.4 μm or less, the oil film forming ability of the cylinder liner can be improved.

【0008】[0008]

【発明の実施の形態】以下、本発明の好ましい実施形態
について、図面に基づいて説明する。図1は本発明のシ
リンダライナの断面図である。図2はシリンダライナの
摺動面の表面粗さの拡大図で、図2(A)は研削加工後
の初期表面粗さを示す図であり、図2(B)は図2
(A)の初期表面粗さから突起を除去した後の粗さを示
す図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a cylinder liner according to the present invention. FIG. 2 is an enlarged view of the surface roughness of the sliding surface of the cylinder liner, FIG. 2 (A) is a diagram showing the initial surface roughness after grinding, and FIG. 2 (B) is FIG.
It is a figure which shows the roughness after removing a protrusion from the initial surface roughness of (A).

【0009】図1において、1はシリンダライナであ
る。2はシリンダライナ1の摺動面であり、摺動面2に
は、ホーニング機械などの研削加工によりピストンの運
動方向4に対して、直角方向の加工目3が付けられてい
る。図2において、R1,R2はシリンダライナの摺動
面の表面粗さで、(A)の研削加工後の鋭角の初期表面
粗さ(R1)を、サンドペーパ付きのハンドグラインダ
により仕上げて突起を除去し、(B)の粗さ(R2)、
すなわち、中心線平均粗さ(Ra)が、0.4μm以下
になるように加工目の突起を除去するように仕上げたも
のである。なお、3aは初期表面粗さの加工目であり、
3bは突起除去後の加工目である。(A)では鋭角な突
起がみられるが、(B)ではRaが小さくなっているの
みならず鋭角な突起が除去されている。
In FIG. 1, reference numeral 1 denotes a cylinder liner. Reference numeral 2 denotes a sliding surface of the cylinder liner 1. The sliding surface 2 is provided with a machining mark 3 in a direction perpendicular to the movement direction 4 of the piston by grinding such as a honing machine. In FIG. 2, R1 and R2 are the surface roughness of the sliding surface of the cylinder liner, and the sharp initial surface roughness (R1) after the grinding process (A) is finished by a hand grinder with a sandpaper to remove protrusions. And the roughness (R2) of (B),
That is, it is finished so as to remove the projections of the processing so that the center line average roughness (Ra) becomes 0.4 μm or less. In addition, 3a is a process of the initial surface roughness,
Reference numeral 3b denotes a processed portion after the protrusion is removed. In (A), sharp projections are seen, but in (B), not only Ra is reduced but also sharp projections are removed.

【0010】次に実施形態に基づく作用について説明す
る。シリンダライナ1の摺動面2の加工目3をピストン
の運動方向4に対して、直角方向に付けるとともに、加
工目3の突起を上記のように除去して仕上げたことによ
りシリンダライナの油膜形成能力の向上を図ることがで
きる。なお、加工目をピストンの運動方向に対して、直
角方向に付ける研削加工方法として、従来の砥石を回転
させ、上下方向に移動させながら研削する研削加工に代
えて、送りを小さくして砥石を一方向にだけ移動させて
研削する研削加工を行った。
Next, the operation based on the embodiment will be described. An oil film is formed on the sliding surface 2 of the cylinder liner 1 by finishing the processing 3 at a right angle to the movement direction 4 of the piston and removing the projections of the processing 3 as described above. The ability can be improved. In addition, as a grinding method of attaching the processing eyes in the direction perpendicular to the movement direction of the piston, instead of the conventional grinding method in which the grinding wheel is rotated and moved up and down, grinding is performed by reducing the feed Grinding was carried out by moving only in one direction and grinding.

【0011】[0011]

【実施例】本発明の効果を実証するため、本願発明の発
明者らはシリンダライナの研削方向の影響について、ピ
ストンリングを模擬したバレル形状の可動片とシリンダ
ライナを模擬した平坦な固定片を組み合わせて試験を行
った。なお、この可動片と固定片は、いずれも実機に使
用されている鋳鉄製ピストンリングとシリンダライナか
ら切り出したものを使用した。この試験では、所定の温
度,速度に設定した後、面圧をステップ状に上昇させ、
摩擦力または可動片温度が急上昇した時点をスカッフィ
ング(焼き付きにくさ)と判定し、その時点の面圧をス
カッフィング面圧と定義した。以下、図面に基づいてそ
の試験結果について説明する。
EXAMPLES In order to demonstrate the effect of the present invention, the inventors of the present invention examined the effect of the grinding direction of a cylinder liner on a barrel-shaped movable piece simulating a piston ring and a flat fixed piece simulating a cylinder liner. The test was performed in combination. Both the movable piece and the fixed piece were cut from a cast iron piston ring and a cylinder liner used in an actual machine. In this test, after setting to a predetermined temperature and speed, the surface pressure was increased in steps,
The point at which the frictional force or the temperature of the movable piece suddenly increased was determined as scuffing (hardness to seize), and the surface pressure at that point was defined as the scuffing surface pressure. Hereinafter, the test results will be described with reference to the drawings.

【0012】図3は試験に使用したピストンリングとシ
リンダライナの試験片の組立図である。図において6は
ピストンリングを模擬した摺動試験片であり、ホルダ9
に保持され、アーム9aを介して可動テーブル10に固
着されている。11はアーム9aに取り付けた荷重測定
用ゲージである。7はシリンダライナを模擬した固定片
であり、ライナ受台12に固着されている。13は熱電
対であり、14はヒータである。なお、固定片7には、
図示しない給油孔から給油される。
FIG. 3 is an assembly drawing of a test piece of a piston ring and a cylinder liner used for the test. In the figure, reference numeral 6 denotes a sliding test piece simulating a piston ring,
And is fixed to the movable table 10 via the arm 9a. Reference numeral 11 denotes a load measuring gauge attached to the arm 9a. Reference numeral 7 denotes a fixed piece simulating a cylinder liner, which is fixed to the liner receiving table 12. 13 is a thermocouple, and 14 is a heater. In addition, the fixing piece 7 includes
Oil is supplied from an oil supply hole (not shown).

【0013】図4は試験に使用した上記固定試験片の形
状を示す図で、図4(A)は正面図である。図4(B)
は側面図である。なお、固定試験片の寸法は、縦390
mm,横120mm,高さ15mmのものを使用した。
FIG. 4 is a view showing the shape of the fixed test piece used for the test, and FIG. 4 (A) is a front view. FIG. 4 (B)
Is a side view. The size of the fixed test piece is 390
mm, a width of 120 mm and a height of 15 mm were used.

【0014】図5は試験結果を示す図である。この試験
では、鏡面加工の粗さのタイプA、通常のホーニング機
械などの研磨加工の粗さのタイプB、初期の表面仕上げ
が研削加工で、表面粗さがRa=1.0μm以上のもの
で、表面粗さの突起部を徐々に削り取ったものをタイプ
Cとし、これら3っつのタイプについて行った。
FIG. 5 is a diagram showing test results. In this test, the type A of the mirror finishing roughness, the type B of the polishing processing such as a normal honing machine, the initial surface finishing is a grinding processing, and the surface roughness is Ra = 1.0 μm or more. Type C was obtained by gradually shaving off the projections of the surface roughness, and was performed for these three types.

【0015】図5において、縦軸にスカッフィング発生
面圧(kgf/cm2 )を、横軸に表面の中心線平均粗
さ(Ra)を示している。また、□印はタイプAを、◇
印はタイプBを、△印はタイプCを示す。
In FIG. 5, the vertical axis represents the surface pressure at which scuffing occurs (kgf / cm 2), and the horizontal axis represents the center line average roughness (Ra) of the surface. □ indicates type A, ◇
The mark indicates type B, and the mark indicates type C.

【0016】この試験の結果、タイプAはRa:0.0
5μmでスカッフィング発生面圧(kgf/cm2 )が
170kgf/cm2 、タイプBはRa:0.25μm
〜0.3μmでスカッフィング発生面圧が130〜18
0kgf/cm2 、タイプCはRa:0.25μm〜
1.05μmでスカッフィング発生面圧が20〜150
kgf/cm2 とばらつきがある。タイプCはRaが
0.4μm以下では概ねスカッフィング発生面圧が10
0kgf/cm2 以上あり、満足すべき水準にあるが、
Raが0.35μmあってもスカッフィング発生面圧が
40kgf/cm2と低いものがあった。これはRaが
小さくても鋭角な突起が残っていたためと考えられる。
As a result of this test, Ra of type A was 0.0
Scuffing generation surface pressure (kgf / cm 2) of 170 μf / cm 2 at 5 μm, Ra: 0.25 μm for type B
When the scuffing pressure is 130 to 18
0 kgf / cm 2, Type C: Ra: 0.25 μm
Scuffing generation surface pressure of 20 to 150 at 1.05 μm
kgf / cm2. Type C generally has a scuffing surface pressure of 10 when Ra is 0.4 μm or less.
0kgf / cm2 or more, which is a satisfactory level,
Even when Ra was 0.35 μm, the surface pressure at which scuffing occurred was as low as 40 kgf / cm 2. This is presumably because sharp projections remained even when Ra was small.

【0017】図6は表面仕上げの評価試験結果を示す図
で、図6(A)はタイプAの表面粗さを、図6(B)は
タイプBの表面粗さを、図6(C)はタイプCの表面粗
さの突起部を削り取る前の表面粗さを示す図である。な
お、AはタイプAを、BはタイプBを、CはタイプCを
それぞれ示している。スカッフィング発生面圧の低いC
タイプは、鋭角な突起が多数あることがわかる。
FIGS. 6A and 6B show the results of the evaluation test of the surface finish. FIG. 6A shows the surface roughness of type A, FIG. 6B shows the surface roughness of type B, and FIG. FIG. 4 is a diagram showing the surface roughness before shaving off a projection having a surface roughness of type C; A indicates type A, B indicates type B, and C indicates type C. C with low scuffing surface pressure
It can be seen that the type has many sharp projections.

【0018】図7は研削方向の影響試験結果を示す図で
ある。図7において、縦軸にスカッフィング発生面圧
(kgf/cm2 )を、横軸に研削方向を示している。
なお、ここで横研とはシリンダライナの摺動面の加工目
をピストンの運動方向に対して、直角方向に付けたもの
であり、クロスとは交差加工目である。
FIG. 7 is a diagram showing the results of an influence test on the grinding direction. In FIG. 7, the vertical axis indicates the scuffing surface pressure (kgf / cm @ 2), and the horizontal axis indicates the grinding direction.
Here, the horizontal grinding means that a processing line on the sliding surface of the cylinder liner is provided in a direction perpendicular to the movement direction of the piston, and the cross is a crossing line.

【0019】この試験の結果、横研ではスカッフィング
発生面圧が180kgf/cm2 と高い傾向にあるが、
クロスではスカッフィング発生面圧が60kgf/cm
2 と面圧が低く、焼き付きやすいことがわかる。
As a result of this test, the surface pressure at which scuffing occurs was found to be as high as 180 kgf / cm 2 at Yokoken.
Scuffing surface pressure is 60kgf / cm with cloth
2 shows that the surface pressure is low and it is easy to burn.

【0020】なお、本発明は上述した実施の形態に限定
されず、本発明の要旨を逸脱しない範囲で種々変更でき
ることは勿論である。
It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the spirit of the present invention.

【0021】[0021]

【発明の効果】上述した本発明のシリンダライナによれ
ば、シリンダライナの摺動面に、研削加工によりピスト
ンの運動方向に対して、直角方向の加工目を付け、か
つ、中心線平均粗さ(Ra)が、0.4μm以下になる
ように加工目の突起を除去するように仕上げたので、シ
リンダライナの油膜形成能力の向上を図ることができる
とともに、すり合わせ運転時間の短縮化を図ることがで
きる。
According to the above-described cylinder liner of the present invention, the sliding surface of the cylinder liner is provided with a processing line perpendicular to the movement direction of the piston by grinding, and the center line average roughness is obtained. (Ra) is finished so as to remove the projections of the processing so as to be 0.4 μm or less, so that the oil film forming ability of the cylinder liner can be improved and the grinding operation time can be shortened. Can be.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のシリンダライナの断面図である。FIG. 1 is a sectional view of a cylinder liner of the present invention.

【図2】シリンダライナの摺動面の表面粗さの拡大図
で、図2(A)は研削加工後の初期表面粗さを示す図で
あり、図2(B)は図2(A)に示す初期表面粗さから
サンドペーパ仕上げによる突起除去後の粗さを示す図で
ある。
2 is an enlarged view of a surface roughness of a sliding surface of a cylinder liner, FIG. 2 (A) is a diagram showing an initial surface roughness after grinding, and FIG. 2 (B) is a diagram of FIG. 2 (A); FIG. 4 is a diagram showing the roughness after removing projections by sandpaper finishing from the initial surface roughness shown in FIG.

【図3】試験に使用したピストンリングとシリンダライ
ナの試験片の組立図である。
FIG. 3 is an assembly view of a test piece of a piston ring and a cylinder liner used for a test.

【図4】試験に使用した固定試験片の形状を示す図で、
図4(A)は正面図である。図4(B)は側面図であ
る。
FIG. 4 is a view showing the shape of a fixed test piece used for the test.
FIG. 4A is a front view. FIG. 4B is a side view.

【図5】試験結果を示す図である。FIG. 5 is a diagram showing test results.

【図6】シリンダライナの摺動面の表面粗さを示す図
で、図6(A)はタイプAの表面粗さを、図6(B)は
タイプBの表面粗さを、図6(C)はタイプCの表面粗
さを示す図である。
6A and 6B are diagrams showing the surface roughness of a sliding surface of a cylinder liner. FIG. 6A shows the surface roughness of type A, FIG. 6B shows the surface roughness of type B, and FIG. (C) is a diagram showing the surface roughness of type C.

【図7】研削方向の影響試験結果を示す図である。FIG. 7 is a diagram showing a result of an influence test on a grinding direction.

【図8】2サイクルディーゼルエンジンの部分断面図で
ある。
FIG. 8 is a partial cross-sectional view of a two-cycle diesel engine.

【図9】従来のシリンダライナの摺動面の展開図であ
る。
FIG. 9 is a development view of a sliding surface of a conventional cylinder liner.

【符号の説明】[Explanation of symbols]

1 シリンダライナ 2 摺動面 3 加工目 4 ピストンの運動方向 1 Cylinder liner 2 Sliding surface 3 Process 4 Piston movement direction

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 内燃機関のシリンダライナであって、該
シリンダライナの摺動面は、研削加工によりピストンの
運動方向に対して、直角方向の加工目が付けられてお
り、加工目の突起を仕上加工により除去して中心線平均
粗さ(Ra)が、0.4μm以下となるようにしたこと
を特徴とするシリンダライナ。
1. A cylinder liner for an internal combustion engine, wherein a sliding surface of the cylinder liner is provided with a processing edge in a direction perpendicular to a movement direction of a piston by grinding, and a projection of the processing edge is formed. A cylinder liner characterized by having a center line average roughness (Ra) of 0.4 μm or less removed by finishing.
JP25497897A 1997-09-19 1997-09-19 Cylinder liner Expired - Fee Related JP3858375B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25497897A JP3858375B2 (en) 1997-09-19 1997-09-19 Cylinder liner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25497897A JP3858375B2 (en) 1997-09-19 1997-09-19 Cylinder liner

Publications (2)

Publication Number Publication Date
JPH1193762A true JPH1193762A (en) 1999-04-06
JP3858375B2 JP3858375B2 (en) 2006-12-13

Family

ID=17272522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25497897A Expired - Fee Related JP3858375B2 (en) 1997-09-19 1997-09-19 Cylinder liner

Country Status (1)

Country Link
JP (1) JP3858375B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009068584A (en) * 2007-09-12 2009-04-02 Toyota Motor Corp Coating structure for sliding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009068584A (en) * 2007-09-12 2009-04-02 Toyota Motor Corp Coating structure for sliding

Also Published As

Publication number Publication date
JP3858375B2 (en) 2006-12-13

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