JPS61124772A - Cylinder sleeve for reciprocation machine - Google Patents
Cylinder sleeve for reciprocation machineInfo
- Publication number
- JPS61124772A JPS61124772A JP24315384A JP24315384A JPS61124772A JP S61124772 A JPS61124772 A JP S61124772A JP 24315384 A JP24315384 A JP 24315384A JP 24315384 A JP24315384 A JP 24315384A JP S61124772 A JPS61124772 A JP S61124772A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder sleeve
- cylinder
- cylindrical
- cylinder part
- phosphorus
- 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
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
- F16J10/04—Running faces; Liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/04—Phosphor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は内燃機関、空気ポンプその他、ピストンの往
復動により作動する往復動機械に使用されるシリンダス
リーブに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cylinder sleeve used in internal combustion engines, air pumps, and other reciprocating machines operated by the reciprocating motion of a piston.
シリンダスリーブは一般に融合金製のシリンダボディE
こ嵌挿され、ピストン孔を有する薄肉の円筒部と、その
一端に設けたや一大径の鍔部とからなる。鍔部はシリン
ダスリーブをシリンダとシリンダヘッドとの間に確実曇
こ支持するためのものであり、円筒部の約2倍の肉厚t
−Wしている。The cylinder sleeve is generally a cylinder body made of fusion metal.
It consists of a thin cylindrical part into which the piston is inserted and has a piston hole, and a flange part with a slightly larger diameter provided at one end of the cylindrical part. The flange part is for securely supporting the cylinder sleeve between the cylinder and the cylinder head, and has a wall thickness t approximately twice that of the cylindrical part.
-I'm doing W.
他方、シリンダスリーブは素材として潤滑性、耐焼付き
の優れた高燐鋳鉄が用いられ、更にそれは直径の大きさ
に比して肉厚が極めて薄いため、その素材は遠心鋳造に
よって生産されるのが最も効率がよい。On the other hand, the material used for the cylinder sleeve is high phosphorus cast iron, which has excellent lubricity and anti-seizure properties.Furthermore, its wall thickness is extremely thin compared to its diameter, so it is difficult to produce the cylinder sleeve by centrifugal casting. Most efficient.
然しなから、遠心鋳造法による鋳造にはなるべく直径の
変化がない均一な管が適するため、シリンダスリーブの
素材としては鍔部に取り代を加えたや\肉厚に鋳造され
る。そこで、円筒部の外周を多量に削除せねばならず、
材料の歩留りがわるいだけでなく、素材管の外面付近の
硬質の部分が削除され強度が低下するので、強度を得る
ため肉厚番こすれば放熱性能が低下する。However, since a uniform tube with as little diameter variation as possible is suitable for casting using the centrifugal casting method, the material for the cylinder sleeve is cast to have a thick wall with machining allowance added to the flange. Therefore, a large amount of the outer periphery of the cylindrical part had to be removed,
Not only is the material yield poor, but the hard parts near the outer surface of the material tube are removed and the strength is reduced, so if the material is thickened to obtain strength, the heat dissipation performance will be reduced.
従来、このような不具合のない剛性が高く薄肉のシリン
ダスリーブを得るため、円筒状をなす円筒N1素材の端
部外周に、環状の鍔部を溶接するものが知られている(
例えば実公昭54−29364号公報)。Conventionally, in order to obtain a highly rigid and thin cylinder sleeve free from such defects, it has been known to weld an annular flange to the outer periphery of the end of a cylindrical N1 material (
For example, Japanese Utility Model Publication No. 54-29364).
しかしながら、このような構造では溶接長さが長くなり
生産性の向上が峻しい上に、溶融範囲が広いため素材の
組織が不均一となり、品質の安定が損なわれる。という
欠点があった。However, in such a structure, the welding length becomes long, making it difficult to improve productivity, and the melting range is wide, resulting in uneven material structure, which impairs quality stability. There was a drawback.
この発明は上述の不具合のないシリンダスリーブを得る
ことを目的とするもので、ピストンの案内孔を有する円
筒部とその上端から外周方向に突出する鍔部とを、筒状
の鍔部素材とその端面に摩擦溶接した遠心鋳造法fこよ
って鋳造された円筒部素材とで素材を形成したものであ
る。The purpose of this invention is to obtain a cylinder sleeve free from the above-mentioned problems, and the purpose of this invention is to combine a cylindrical part having a guide hole for a piston and a flange protruding from the upper end of the cylindrical part in the outer circumferential direction with a cylindrical flange material. The material is formed by friction welding the end face and the cylindrical material cast by the centrifugal casting method.
以下、図示の実施例によってこの発明を説明すると、図
中、1は四行程エンジンであり、エンジン1はクランク
軸2を支持するクランクケース3の上部にシリンダ4を
有し、そこには連接棒5を介してクランク軸2に連結さ
れるピストン6が摺動自在に嵌合されている。シリンダ
4の上Stこはシリンダヘッド7が取付けられ、ピスト
ン6の頂部に圧縮室たる燃焼室8が形成される。9は吸
気弁、10は排気弁である。以上の構成は特に従来のエ
ンジンと異なる処はない。Hereinafter, the present invention will be explained with reference to the illustrated embodiment. In the figure, 1 is a four-stroke engine, and the engine 1 has a cylinder 4 in the upper part of a crankcase 3 that supports a crankshaft 2, and a connecting rod is provided therein. A piston 6 connected to the crankshaft 2 via a piston 5 is slidably fitted therein. A cylinder head 7 is attached to the upper part of the cylinder 4, and a combustion chamber 8, which is a compression chamber, is formed at the top of the piston 6. 9 is an intake valve, and 10 is an exhaust valve. The above configuration is not particularly different from conventional engines.
こ\で、シリンダ4は軽合金性のシリンダボディ41と
ピストン6の案内孔を有するシリンダスリーブ42とか
らなり、シリンダスリーブ42はさらにピストン孔を持
つ円筒部44と、その一端に固着された鍔部45とを各
別に準備し、鍔部45の端面に円筒部44を摩擦溶接し
て冶金的一体に結合しである。円筒部44は耐摩性を増
しあるい−は耐焼付き性を向上させるために3〜10%
の燐を含有する高燐鋳鉄を遠心鋳造したもので、内部に
燐、鉄および炭素からなる三元共晶組成物(ステダイト
)が均一に分布しており、耐摩性と耐焼付き性の向上を
図っている。円筒部44の素材は、シリンダスリーブの
長さの数倍の長い鋳鉄素材を遠心鋳造し、旋削fこより
切断して単位長さの円筒部素材とした後、第3図(a)
で示すように、鍔部45をなす比較的長い円筒状の普通
鋳鉄製の素材Aを高速回転させ、これに軸線を一致させ
た状態で円筒部素材Bを押漕けて摩擦溶接を行う。接合
後、同図(b)で示すように鍔部45をなす素材をバイ
トCにより、接合部46から適当な距離tだけ隔てた位
置で切断し、然る後、所要の仕上げ加工を施して完成さ
せる。Here, the cylinder 4 consists of a light alloy cylinder body 41 and a cylinder sleeve 42 having a guide hole for the piston 6, and the cylinder sleeve 42 further includes a cylindrical portion 44 having a piston hole, and a collar fixed to one end of the cylinder body 41. 45 are prepared separately, and the cylindrical portion 44 is friction welded to the end face of the flange portion 45 to metallurgically join them together. The cylindrical portion 44 has a thickness of 3 to 10% to increase wear resistance or seizure resistance.
This product is centrifugally cast from high-phosphorus cast iron containing phosphorus, and has a ternary eutectic composition (steadite) consisting of phosphorus, iron, and carbon uniformly distributed inside, which improves wear resistance and seizure resistance. I'm trying. The material for the cylindrical portion 44 is made by centrifugally casting a cast iron material several times as long as the length of the cylinder sleeve, and cutting it by lathe f to obtain a cylindrical portion material of unit length, as shown in Fig. 3(a).
As shown, friction welding is performed by rotating a relatively long cylindrical ordinary cast iron material A forming the flange 45 at high speed, and pushing the cylindrical material B with its axis aligned with the material A. After joining, as shown in FIG. 4(b), the material forming the flange 45 is cut with a cutting tool C at a position separated by an appropriate distance t from the joining part 46, and then the required finishing process is performed. Finalize.
円筒部素材の遠心鋳造には一般に円筒状の金型が用いら
れ、それを回転させた状態でその内側に溶湯を注いで円
筒状のシリンダスリーブが鋳造される。よって、得られ
た円筒部素材の外周付近はチルド鋳物となるので極めて
硬く、内側へ行くに従って徐々に軟化し、ピストンの摺
動面には多量のパーライトと遊離炭素や黒鉛が析出する
ようfこなる。Generally, a cylindrical mold is used for centrifugal casting of the cylindrical material, and a cylindrical cylinder sleeve is cast by pouring molten metal into the mold while it is rotating. Therefore, the area near the outer periphery of the resulting cylindrical material is a chilled casting, so it is extremely hard, and gradually softens toward the inside, and care is taken to ensure that a large amount of pearlite, free carbon, and graphite are deposited on the sliding surface of the piston. Become.
この発明に係るシリンダスリーブは以上のように、遠心
鋳造法によって鋳造された円筒部と、その上端から外周
方向に突出する鍔部とを、摩擦溶接して得られた生成品
を機械加工して仕上げられるものであるから、ピストン
が摺動する内面はパーライト主体の組織の中にステダイ
トが均一に分布する安定したものとなり、従来と同様な
耐摩性や耐焼付き性が得られる。また、シリンダスリー
ブの円筒部外面は遠心鋳造の金型によって急冷されるた
めセメンタイトが多tに析出して高い強度が得られるが
、前記したように円筒部の外周の切削代が少なく、硬質
の部分が残存して軟質のピストン摺動面を背後から支え
るからシリンダボディへ圧入する際や、鋳包まれる際に
圧壊されることがなく、薄肉のシリンダスリーブが得ら
れピストン孔内面の熱をシリンダボディへ放熱しゃずく
なる。また、その硬度の分布は円筒形のシリンダスリー
ブに同心円状Iこ分布しているので°、残留応力の不均
一がなく、シリンダの精度が狂うことがないなどの効果
がある。As described above, the cylinder sleeve according to the present invention is obtained by machining a product obtained by friction welding a cylindrical part cast by centrifugal casting and a flange projecting in the outer circumferential direction from the upper end of the cylindrical part. Because it is finished, the inner surface on which the piston slides has a stable structure with steadite evenly distributed in a pearlite-based structure, providing the same wear resistance and seizure resistance as conventional pistons. In addition, since the outer surface of the cylindrical part of the cylinder sleeve is rapidly cooled by a centrifugal casting mold, a large amount of cementite is precipitated and high strength is obtained. Because the remaining part supports the soft sliding surface of the piston from behind, it will not be crushed when it is press-fitted into the cylinder body or when it is cast into the cylinder body, resulting in a thin-walled cylinder sleeve. Heat dissipates to the body. Furthermore, since the hardness distribution is concentrically distributed in the cylindrical cylinder sleeve, there is no non-uniform residual stress and there is no loss of accuracy of the cylinder.
図面はこの発明の一実施例を示すもので、第1図はエン
ジンの一部を示す断面図、第2図はその要部の拡大図、
第3図は製造方法を説明するための断面図である。
42・・・・シリンダスリーブ、44・拳・−円筒部、
45・・・+1鍔部。
時打出願人 ヤマ71発m機株式会社代理人 山川数
構(4か)2名)
第1図
第3図
(b)
(C)
手続補正書(鯖)
1、事件の表示
昭和59年 特 許願第243153号2、発明の名称
往復動機械のシリンダスリーブ
3、補正をする者
事件との関係 特 許 出願人名称(氏名)
(AO7)ヤマハ発動機株式会社5、補正の対象
(1)明細書の特許請求の範囲を別紙の通り補正する。
(2)同第5頁第1行の「3〜10es」を「シリンダ
スリーブの材料として周知の0.3〜1.(IJと補正
する。
以上
別 紙
「(1) ピストンの案内孔を有する円筒部とその上
端から外周方向に突出する鍔部とが、筒状の鍔部素材と
その端面に摩擦溶接される遠心鋳造法によって鋳造され
た円筒部素材とで素材を形成した往復動機械のシリンダ
スリーブ。
(2)円筒部は外周から内周に向けて同心的に硬度が低
下するように構成されている特許請求の範囲第1項記載
の往復動機械のシリンダスリーブ。
区 円筒部は鍔部の一端面に摩擦溶接されている特許請
求の範囲第1項記載の往復動機械のシリンダスリーブ。
」The drawings show one embodiment of the present invention; FIG. 1 is a sectional view showing a part of the engine, FIG. 2 is an enlarged view of the main part,
FIG. 3 is a sectional view for explaining the manufacturing method. 42...Cylinder sleeve, 44.Fist--cylindrical part,
45...+1 Tsuba. Tokiuchi applicant Yama 71 Hatsuki Co., Ltd. Agent Kazukai Yamakawa (4 or 2 people) Figure 1 Figure 3 (b) (C) Procedural amendment (Saba) 1. Indication of the case 1988 Special Patent Application No. 243153 2, Title of Invention Cylinder Sleeve for Reciprocating Machine 3, Relationship with Amendment Case Patent Name of Applicant (Name)
(AO7) Yamaha Motor Co., Ltd. 5, Subject of amendment (1) The scope of claims in the specification will be amended as shown in the attached sheet. (2) "3-10es" in the first line of page 5 is corrected to "0.3-1. (IJ), which is well known as a material for cylinder sleeves." (1) Having a piston guide hole A reciprocating machine in which a cylindrical part and a flange protruding from its upper end in the outer circumferential direction are made of a cylindrical flange material and a cylindrical part material cast by a centrifugal casting method that is friction welded to the end surface of the cylindrical part. Cylinder sleeve. (2) The cylinder sleeve for a reciprocating machine according to claim 1, wherein the cylindrical portion is configured such that its hardness decreases concentrically from the outer circumference toward the inner circumference. A cylinder sleeve for a reciprocating machine according to claim 1, wherein the cylinder sleeve is friction welded to one end surface of the cylinder sleeve.
Claims (4)
外周方向に突出する鍔部とが、筒状の鍔部素材とその端
面に摩擦溶接される遠心鋳造法によつて鋳造された円筒
部素材とで素材を形成した往復動機械のシリンダスリー
ブ。(1) A cylindrical part that is cast by a centrifugal casting method in which a cylindrical part having a piston guide hole and a flange protruding from its upper end in the outer circumferential direction are friction welded to the cylindrical flange material and its end surface. Cylinder sleeve for reciprocating machinery made of material.
なり、鍔部は燐を含有しないか不純物として微量を含ん
でいる鉄材料で構成してなる特許請求の範囲第1項記載
の往復動機械のシリンダスリーブ。(2) The cylindrical part is made of high phosphorous cast iron containing 3 to 10% phosphorus, and the flange part is made of an iron material that does not contain phosphorus or contains a trace amount of phosphorus as an impurity. Cylinder sleeve for the reciprocating machine described.
下するように構成されている特許請求の範囲第1項記載
の往復動機械のシリンダスリーブ。(3) A cylinder sleeve for a reciprocating machine according to claim 1, wherein the cylindrical portion is configured such that its hardness decreases concentrically from the outer circumference toward the inner circumference.
請求の範囲第1項記載の往復動機械のシリンダスリーブ
。(4) A cylinder sleeve for a reciprocating machine according to claim 1, wherein the cylindrical portion is friction welded to one end surface of the collar portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24315384A JPS61124772A (en) | 1984-11-20 | 1984-11-20 | Cylinder sleeve for reciprocation machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24315384A JPS61124772A (en) | 1984-11-20 | 1984-11-20 | Cylinder sleeve for reciprocation machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61124772A true JPS61124772A (en) | 1986-06-12 |
Family
ID=17099586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24315384A Pending JPS61124772A (en) | 1984-11-20 | 1984-11-20 | Cylinder sleeve for reciprocation machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61124772A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1398492A1 (en) | 2002-09-11 | 2004-03-17 | Honda Giken Kogyo Kabushiki Kaisha | Process for producing a cylinder block with a sleeve |
WO2009120405A1 (en) * | 2008-03-26 | 2009-10-01 | General Electric Company | Power assembly for internal combustion engine with welded-in piston scraper |
WO2012159605A1 (en) * | 2011-05-21 | 2012-11-29 | Mahle International Gmbh | Cylinder liner and method for producing same |
WO2013060529A1 (en) * | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Functionally optimized design of a cylinder liner |
-
1984
- 1984-11-20 JP JP24315384A patent/JPS61124772A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1398492A1 (en) | 2002-09-11 | 2004-03-17 | Honda Giken Kogyo Kabushiki Kaisha | Process for producing a cylinder block with a sleeve |
US6925981B2 (en) | 2002-09-11 | 2005-08-09 | Honda Giken Kogyo Kabushiki Kaisha | Process for producing a cylinder block with a sleeve |
WO2009120405A1 (en) * | 2008-03-26 | 2009-10-01 | General Electric Company | Power assembly for internal combustion engine with welded-in piston scraper |
US7958814B2 (en) | 2008-03-26 | 2011-06-14 | General Electic Company | Power assembly for internal combustion engine with welded-in piston scraper |
WO2012159605A1 (en) * | 2011-05-21 | 2012-11-29 | Mahle International Gmbh | Cylinder liner and method for producing same |
WO2013060529A1 (en) * | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Functionally optimized design of a cylinder liner |
CN103946606A (en) * | 2011-10-28 | 2014-07-23 | Ks科尔本施密特有限公司 | Functionally optimized design of a cylinder liner |
US10359000B2 (en) | 2011-10-28 | 2019-07-23 | Ks Kolbenschmidt Gmbh | Functionally optimized design of a cylinder liner |
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