經濟部智«財產局員工消費合作社印*|农 d 6 3 cn 5 Α7 _Β7 五、發明說明（1 ) 本發明係有關往復活塞式引擎，特別是二衝程大型柴 油引擎，具有至少一汽缸，其汽·缸襯套，在其被朝向配屬 活塞滑接表面的區域内，具有一比作為至少一槽狀油井側 邊界之含汽缸襯套在内的材料區的基材還高之耐磨性。 此類的往復活塞式引擎在日本專利案JP-6-105102 B2 内有揭露》在此習知的裝置内，構成槽狀油井的汽缸襯套 ，係在其滑接側面備設一井輪廓，其中此等井輪廓的高起 部位係利用硬化過程而硬化，為改善入進特性，被硬化的 位置可備設一 MoS^層，惟’它很快就消失。井輪廓的製 備以及一被局限在高起部位之局部性硬化步驟的執行，花 費係相當高。因此，透過硬化步称來達成的硬化深度，_ 般而言’係相當少見。此外，單由硬化步驟來達成的硬度 亦受到限制。是以，在已知的裝置中，井輪廓只有相當少 的使用壽命。另外可看到的缺點是，被局限在高起部位之 局部性硬化亦會導致在鄰近材料區之不欲的扭曲和構造改 變。習知裝置因而顯得不夠簡單和耐久。 基於上述，本發明的課題因而是，以簡單和價簾的材 料對前述技藝的往復活塞式引擎進行改善，使汽缸襯套可 獲得一較長的壽命。 依本發明，此課題可藉由如下方式來解決，即，為形 成各油丼侧邊界而備設的材料區係以一溝槽填料來構形。 其;木度至少係對應汽缸襯套的最大磨耗厚度。 此等措施使得材料的選擇，可依溝槽填料以及油井邊 界的需要’能以-有利方式，自由為之。因此，可就呈顯 本紙張R度適財隨家標準（CNS)A4規格（21G κ 297公£ 裝--------訂---------線 (請先閲讀背面之注意事項再填耳本頁) -4 .^-^^:^^產局曼工湞費合作社^泰 A7 ____ B7_—_ 五、發明說明（2 ) 的需要性，利用比經硬化的基材還佳之與基材不同的合適 材料。溝槽的深度可更超過由一硬化步驟所能獲得的硬化 深度。製造時，首先獲得一光滑上表面。此上表面係可以 一譬如是磨光等相當簡便的方式來加工。由於基材的耐磨 性較小，故在由外來材料所構成溝槽之間的區域的基材磨 耗較快，藉此可自動獲得所欲的油井。此等可一直維持不 變直到汽缸襯套完全被磨掉為止。因此，以本發明的措施 處理’可完全避免前開所述之習知裝置的缺失。 月1J述措施的有利造形以及合適的進一步構造係示於次 請求項中。填料可合適地由一至少是部份為陶瓷材料，最 好是一陶瓷-金屬混合物（Cermet)所組成。如此可得到特 別高的穩定性。此外，在此所提的材料可以最簡單方式， 譬如是’以電漿高速噴塗方式’或以雷射塗覆方式被置於 其上。 另一有利的措施可在於，構成油井邊界的各溝槽的深 度係比汽缸概套的最大磨耗厚度為大。藉此可確保，溝槽 填料可好好地附著在基材内内直到汽缸襯套完全磨掉為止 當溝槽橫斷面向内增大時，則對此更有利。 前述措施的另外進一步的有利構形方式和合宜的改善 係揭不於其餘的次請求項中，且可從以下藉圖示之助的 實矻例的說明進一步獲得。 圖示的簡單說明： 第i圖是二衝程大型柴油引擎的汔缸的部份載面圖、 第二圖是依第i圖裝置之備設油丼的區域的一放大别面 .¾ 这污 士 S 國家標 I ;CN:S;A4 規格 n n an n n I n I — Ϊ tf HI n 一 0、. - ..... n I (請先閱坤背面之注意^項再填寫本頁〕 經濟部智慧財產局員工消費合作社印製 463015 A7 . ___B7__ 五、發明說明（3 ) 圖；以及 第3圓是依第1圏裝置之#設填料之溝槽的放大剖面圖 〇 本發明可應用於往復活塞式引擎，特別是往復活塞式 内燃引擎，最好是呈低速二衝程大型柴油引擎^此類裝置 的構建和功能本身係屬習知，故在此不作進一步資述。 在第1圖所示二衝程大型柴油引擎的汔缸包含一具有 進氣口 1的汽缸概套2’在其上設有一包含一在此未詳示的 出氣口裝置的汔缸頭3 »汽缸襯套2的内面係以滑接面構形 。使備設一具有環周邊的活塞環5之上下運動的活塞6與之 一同作用。滑接面4被潤滑油引入口 7供以潤滑油。 為獲致湖滑油的良好分佈，以及獲致特別是，其内常 有潤滑油供應不足區域，誓如是，滑接面4的上部區等之 良好的潤滑油供應時，此等需備設單獨在第1圖所示之合 適的油井8。構成油井8的凹部並非一開始就存在。而是， 一開始即提供一措施，使構成油井8基底的凹部，係在運 轉中，經由構成汽缸襯套2的基材的磨耗而自行生成。 油井8係各自被位於其側的材料區域所旁側界限。在 各兩個此類材料區域9之間，可形成一油井8。各自側邊界 定一油井8的材料區域9，如第2和3圖，所示，可作成.各被配 屬一溝槽10的填料Π ^構成填料11的材料係擁有一比一般 而言，係由鏵鋼所構成的汽缸襯套2的基材還大的耐磨性 。在起始狀態時，溝槽11，如第3囷所顯示，係被充填直 到滑接面4的齊平面為止，如此獲得一光滑的上表面。此 本紙張尺度適用中國國家標準（CNS)A4規格（210X 297公爱） 6 I ----- 11----* -- - ----til· — !--線 {靖先閱讀背面之注意事項再填寫本頁) 崾濟部智砝財產局員工消費合作杜印¾. A7 —-----B?____ 五、發明說明（4 ) 可由譬如是磨光的簡易方式加工。首先，溝槽10被切出。 然後填料11被置入。接著，滑接，面4即可進行加工。 由於與作為汽缸襯套2之基材相較，構成填料n的材 料有較高的耐磨性，基材在運轉過程期間的磨耗就大於填 料11如第3圈中虛線所示。藉此，在兩相鄰填料丨丨之間就 各可獲得所欲的溝槽狀油井 為構建填料11，可合適地使用完全或至少部份由陶瓷 材料，譬如陶曼·金屬混合物（Cerrnet)所組成的材料。此 等材料可合適地包含碳化物和/或氡化物和/或氮化物和 /或硼化物和/或具有Cu的矽酸鹽和/或Ai_青銅和/或 Νι和/或NiCr和/或Mo和/或AK石墨和/或Ni·石墨和 /或AKBr·石墨以及一有機黏合劑。此時，破化物，氡化 物’氮化物，硼化物’矽酸鹽最好是以1〇_6〇%存在硬相 ’而以5-80%存在軟相。當碳化物，氧化物，氮化物，硼 化物，矽酸鹽係以Cr-化合物存在時更是特別有利。此時 ，CrO係一特別合意的材料，此係因，它不但有較高的安 定性’以及容許高的工作溫度，且亦不會腐蝕以及氧化。 在上述前提的一較佳實施例中，填料丨丨可包含2〇·5〇% 最好是20,40o/d的碳化物和/或氧化物和/或氮化物和 /或蝴化物和/或矽酸鹽以及至少還有具至少2〇_4〇%， 最好是60-80¾的A1-青銅。較佳的實施例可含有，20-40% 的氧化物與60-80°/。的A1-青銅混合，或30-50%的氧化物， SI化物或碳化物與至少A1-青銅.或最好是與1〇-20。/。的M〇 和2(M0%N丨或N〖CiU(M0。/*的A1-青銅混合.此類材料可 $坪.、張尺..¾適Η 士围國家橒準規格（；il〇 .« 297公爱、 -------------I · I------- C琦先閱讀背面之注意事項再填寫本頁) 463015 五、發明說明（5 ) 以電弧，火焰噴塗法或電漿濺射塗覆方法或高速噴塗方法 塗復，以及被帶進到配屬的溝槽10内。 另一材料族群，包含具一各自為0.1-10%部份的矽和 硼，可同樣地依上述的技術和方法被置於其上。與此相關 的較佳之材料組成係，10-18%的〇,2-3%的？匕2-4%的8[ 2-4%的B，0.1-0.5%的C以及餘量為Ni，或 10-18%的 Cr, 2-3% 的 Fe，2-4% 的 Si，2-4% 的 Β，0.1-0·5% 的 C，6-12% 的 Μο,Ο.1-0.5%的 C，30-40%的 Co以及餘量為Ni，或 10-18%的 Cr，2-3% 的 I，2-4% 的 B，0.1-0_5% 的 C，6-I2% 的 Mo，l-6% 的 Cu，0.1-0.5%的C以及餘量為Ni，或10-18%的Cr，2-3%的1,2-4%的 Si，2-4°/〇 的 Β，0·1-0.5% 的 C，6-12% 的 Mo，10-20% 的 Ni，65-88%WC以及12%的Co同樣地，火焰燒結，感應燒結或雷 射燒結可在此被考慮。 在以燒結充填作為填料11構建時，亦可使用以下材料 ’即，碳化物和/或氧化物和/或氮化物和/或硼化物和 /或矽酸鹽係以10-60%存在硬相，而以5·80%存在軟相， 以及含2-100/〇的 Cu，20-30〇/〇的 Α1·青銅，10-85%的 Ni或NiCr， 10-30%的 Cr，0.1-5%的碳，1-8%的 pe，2-15%的 Mo或Mo-硫 化物或Mo-二硫化物或Mo-氧化物或Mo-二氧化物或Mo-過 氧化物，2-7% 的 Cu，10-40% 的 Co，30-80%WC 或 88%WC 以 及 12%Co。 粉末材料亦合適。因此，譬如是，具0,2-5%的(：，20-50〇/〇 的0，1-20%的1^〇，1-20%的乂〇.1-4%的5丨或丑，0.1-5%的1^11， 0.1-5%的Fe，0.5-50%的碳化物，氧化物，氮化物，硼化物 本纸張疋度適用中國國家標準（CNS〉A4規格（210 X 297公爱〉 -------------裝i — (請先閲讀背面之k意事項再填寫本頁) 訂： -線 經濟部智慧財產局員工消費合作社印裂 經濟部智慧財產局員Η消費合作社印絮 λ: ___Β7___ 五、發明說明（6 ) 或矽酸鹽，Mo-硫化物/-二氣化物/·氧化物/·二疏化物 或Mo-過氧化物的粉末可被應用.，其中，矽和/或硼可各 備具0· 1 -5%以及餘量為Ni。有關此’特別佳的材料係由 20-30%的 Cr，M0%的 Mo. 2-3%的 C，2-5%的 V，0.2-1%的 Μη, 0.2-4%的Si或Β以及餘量為Ni所組成。 另’填料11亦可以烊接覆層方式來構形。此時，可使 用的材料為，含有2-20%的A1，0.5-10%的Fe，0.1·8%的Μη, 0.1-2%的Si. 0.1-10%的Ni，0.1-2%的C以及至少一具高達5· 20%成分的 Sb，Co, Be，Cr，Sn，Cd，Zn，Pb 以及餘量為 Cu。 此時’一特別佳的組成可含有14-17%的Al，3-5%的Fe，1-3% 的Μη, 0.1-2%的Si，最大為0.3%的C以及餘量為Cu。 在第3圖中以d表示的溝槽10深度至少對應汽缸襯套4 的最大磨耗厚度。合適地，深度d係比最大磨耗厚度為大 ，如此使在汽缸襯套2完全磨掉時，可確保填料η在基材 内仍有良好的固著性。承此，當溝槽10的橫斷面，係如在 第2圖中透過一以虛線顯示的橫斷面形12來表示，向内擴 大時’亦更為有利。較佳的溝槽深係可在滑接面4之直徑 D的0.1至0.4%之間的範圍内。構建成的油井8的内面寬度 係對應各備設填料1 1之配屬溝槽10的距離。此等在第2圖 中以w表示的距離最好是在滑接面4之直徑D的丨至2%之間 的範圍内...溝檜10的内面寬度以及此配屬的填料11的寬度 b較佳地是對應溝槽深度d藉此，可獲得對抗剪力的穩定 性 它可備設-或多個油丼8 配屬于此且各備設一填 f张匕茂適电中國國家標邊（CNS:iA,5規格297公釐 — 111-----ill* I I — I I I I 訂- 11 — 1--I (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 463015 A7 ______B7____ 五、發明說明（7 ) 料11的溝槽10係合宜地設在，依目前的經驗，未充分潤滑 的危險性以及與之對應的熱腐蝕，性危險性大的地區。首先 要提的是’滑接面的上部區内就是此種情形。在第1圖中 ，在被活塞6的上死點内的第一和第二活塞環5所界定的滑 接面區域中，為構建油井8而備具的物料被置設著。另一 油井8以及為此所需的物料可設在最下方的活塞環$的下方 區域。在所示的實施例中，亦另有更深置設的油井8備設 著。 油井8和所對應界定該等的材料區域係可成環繞狀。 此外或另外亦可備設_或多個成螺旋狀的油井8以及所對 應’界定此等之螺旋狀的材料區9。此可在一區域或在滑 接面4的整個導引長度上伸展。 若係為成螺旋狀的油井8情形，則在第丨圊中以p表示 的斜度是可為滑接面4的直徑D的約1.5%至20¼之間。此 斜度可在整個長度上皆保持-定。當然亦可考慮採變化的 斜度，使得在特別危險區域有一比，較少危險區域為大的 油井厚度。 在所示的實施例中，溝槽1〇以及所對應，亦配屬于此 的填料11擁有—直角形以及梯形橫載面。此内邊緣可為避 免V形刻痕應力而被圓鈍化。 . ----裝--------訂！---線 <請先ΜΛ·背面之注意事項再填S本頁}Ministry of Economic Affairs «Institute of Consumer Property Cooperatives of the Property Bureau * | Nong d 6 3 cn 5 Α7 _B7 V. Description of the invention (1) The present invention relates to a reciprocating piston engine, especially a large two-stroke diesel engine, which has at least one cylinder. The cylinder liner has an abrasion resistance higher than that of the base material area including the cylinder liner as the boundary of at least one groove-shaped oil well in the area where it faces the sliding contact surface of the associated piston. . Such a reciprocating piston engine is disclosed in the Japanese patent JP-6-105102 B2. In the conventional device, the cylinder liner constituting a trough-shaped oil well is provided with a well profile on its sliding contact side. The raised parts of these well profiles are hardened by the hardening process. In order to improve the entry characteristics, a MoS ^ layer can be provided at the hardened position, but 'it will soon disappear. The preparation of the well profile and the execution of a localized hardening step confined to the raised area are costly. Therefore, the hardening depth achieved through the hardening step scale is generally rare. In addition, the hardness achieved by the hardening step alone is also limited. Therefore, in known devices, the well profile has only a relatively small service life. A further disadvantage is that localized hardening confined to the raised area can also lead to unwanted distortions and structural changes in the adjacent material area. The conventional device thus appears to be not simple and durable. Based on the above, the problem of the present invention is therefore to improve the reciprocating piston engine of the aforementioned technique with a simple and inexpensive material, so that the cylinder liner can obtain a longer life. According to the present invention, this problem can be solved by forming the material region provided for forming the boundary between each oil side with a groove filler. Its; at least the wood thickness corresponds to the maximum wear thickness of the cylinder liner. These measures allow the choice of materials to be freely made in a favorable manner according to the needs of the trench packing and the well boundary. Therefore, it is possible to show the paper ’s R-Family Standard (CNS) A4 specification (21G κ 297 kg). -------- Order --------- line (Please read first Note on the back, please fill in this page again) -4. ^-^^: ^^ Production Bureau Mangong Co., Ltd. ^ Tai A7 ____ B7 _—_ V. The need for invention description (2) is better than the hardened The substrate is also a suitable material different from the substrate. The depth of the grooves can be more than that obtained by a hardening step. When manufacturing, a smooth upper surface is obtained first. This upper surface can be polished, for example It is a relatively simple way to process. Due to the low abrasion resistance of the base material, the base material wears quickly in the area between the grooves made of foreign materials, so that the desired oil well can be obtained automatically. It can remain unchanged until the cylinder liner is completely worn away. Therefore, the treatment of the measures of the present invention can completely avoid the lack of the conventional device described in the previous paragraph. The advantageous formation of the measures described in January 1 and the suitable further structure system Shown in the sub-claims. The filler may suitably be made of a ceramic material which is at least partially Ceramic-metal mixture (Cermet). In this way, a particularly high stability can be obtained. In addition, the materials mentioned here can be used in the simplest way, such as 'plasma high-speed spraying' or laser coating. Another advantageous measure may be that the depth of each groove constituting the boundary of the well is greater than the maximum abrasion thickness of the cylinder sleeve. This can ensure that the groove filler can adhere to the substrate well. This is more advantageous when the cross section of the groove increases inward until the cylinder liner is completely worn out. Another further advantageous configuration and appropriate improvement of the foregoing measures are not disclosed in the remaining sub-requests It can be further obtained from the following description of a practical example with the help of the diagram. A brief description of the diagram: Figure i is a partial view of the cylinder of a two-stroke large diesel engine. An enlarged view of the area where the oil pan is provided in the i-picture device. ¾ This dirty person S national standard I; CN: S; A4 specifications nn an nn I n I — Ϊ tf HI n a 0, ... -... .. n I (Please read the note ^ on the back of Kun before filling in this page Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 463015 A7. ___B7__ V. Description of the invention (3) Figure; and the third circle is an enlarged cross-sectional view of the groove provided with the filler according to the first device # 0 The invention can be applied to A reciprocating piston engine, especially a reciprocating piston internal combustion engine, is preferably a low-speed two-stroke large-scale diesel engine. The construction and function of such devices are well known, so they will not be further described here. The two-stroke large diesel engine's cymbal cylinder includes a cylinder profile 2 'with an air inlet 1 on which a cymbal head 3 including an air outlet device (not shown here) is provided. The inner surface of the cylinder liner 2 Shaped with sliding surface. A piston 6 provided with a piston ring 5 having a ring perimeter is moved up and down to work with it. The sliding contact surface 4 is supplied with lubricating oil through a lubricating oil introduction port 7. In order to obtain a good distribution of oil in the lake, and in particular, there is often an insufficient supply area of lubricating oil in it, if it is, when the good lubricating oil supply of the upper area of the sliding surface 4 and so on, these need to be provided separately A suitable oil well 8 is shown in FIG. The recesses constituting the oil well 8 do not exist from the beginning. Instead, a measure is provided from the beginning so that the recesses constituting the base of the oil well 8 are generated by themselves during operation by abrasion of the base material constituting the cylinder liner 2. The oil wells 8 are each bounded laterally by a material region located on their side. Between each two such material regions 9, an oil well 8 may be formed. Each side boundary defines a material region 9 of an oil well 8, as shown in Figs. 2 and 3. Each of the fillers assigned to a trench 10 ^ ^ The material constituting the filler 11 has a ratio generally, The base material of the cylinder liner 2 made of stell steel is also highly wear-resistant. In the initial state, the groove 11, as shown in Fig. 3, is filled until the flush plane of the sliding surface 4, so that a smooth upper surface is obtained. This paper size applies to China National Standard (CNS) A4 specifications (210X 297 public love) 6 I ----- 11 ---- *------ til · —!-Line {jingxian read Note on the back, please fill out this page again) Du Yin, employee cooperation of the Ministry of Economic Affairs and Intellectual Property Bureau ¾. A7 —----- B? ____ 5. Description of the invention (4) It can be processed in a simple way such as polishing. First, the trench 10 is cut out. The filler 11 is then inserted. Next, the surface 4 can be processed by sliding contact. Since the material constituting the filler n has higher abrasion resistance as compared with the substrate used as the cylinder liner 2, the abrasion of the substrate during the running process is greater than that of the filler 11 as shown by the dotted line in the third circle. As a result, the desired trench-shaped oil well can be obtained between two adjacent packings. For the construction of the packings 11, a ceramic material, such as Cerrnet, can be used completely or at least partially. Composed of materials. These materials may suitably comprise carbides and / or sulfides and / or nitrides and / or borides and / or silicates with Cu and / or Ai_bronze and / or Ni and / or NiCr and / or Mo and / or AK graphite and / or Ni · graphite and / or AKBr · graphite and an organic binder. At this time, it is preferred that the broken compound, halide 'nitride, boride' silicate have a hard phase at 10-60% and a soft phase at 5-80%. It is particularly advantageous when carbides, oxides, nitrides, borides, and silicates are present as Cr-compounds. At this time, CrO is a particularly desirable material. This is because it not only has high stability 'and allows a high operating temperature, but also does not corrode and oxidize. In a preferred embodiment of the above-mentioned premise, the filler may include 20.5% carbide and / or oxide and / or nitride and / or butterfly and / Or silicate and at least A1-bronze with at least 20-40%, preferably 60-80¾. The preferred embodiment may contain 20-40% oxide and 60-80 ° /. Mix A1-Bronze, or 30-50% of oxides, SI compounds or carbides with at least A1-Bronze. Or preferably with 10-20. /. M0 and 2 (M0% N 丨 or N 〖CiU (M0 ./* A1-bronze mix. Such materials can be ping., Zhang ruler .. ¾ meet the national standard specifications of Shiwei (; il〇 . «297 public love, ------------- I · I ------- C Qi first read the notes on the back before filling out this page) 463015 V. Description of the invention (5) It is coated by arc, flame spraying or plasma sputtering coating method or high-speed spraying method, and is brought into the associated groove 10. Another group of materials, which has a portion of 0.1-10% each. Silicon and boron can also be placed on it in accordance with the above-mentioned techniques and methods. A better material composition system related to this is 10-18% 0,2-3%? 2-4% 8 [2-4% B, 0.1-0.5% C, and the balance is Ni, or 10-18% Cr, 2-3% Fe, 2-4% Si, 2-4% B, 0.1 -0.5% C, 6-12% Μο, 〇.1-0.5% C, 30-40% Co, and the balance of Ni, or 10-18% Cr, 2-3% I , 2-4% B, 0.1-0_5% C, 6-I2% Mo, 1-6% Cu, 0.1-0.5% C, and the balance is Ni, or 10-18% Cr, 2 -3% 1,2-4% Si, 2-4 ° / 〇B, 0.1-0.5% C, 6-12% Mo, 10-20% Ni, 65-88% WC, and 12% Co. Similarly, flame sintering, induction sintering, or laser sintering can be considered here. When sintering filler is used as the filler 11, the following materials can also be used, that is, carbonization Compounds and / or oxides and / or nitrides and / or borides and / or silicates have a hard phase at 10-60% and a soft phase at 5.80%, and Cu, 20-30% / A1 · bronze, 10-85% Ni or NiCr, 10-30% Cr, 0.1-5% carbon, 1-8% pe, 2-15% Mo or Mo-sulfide or Mo-disulfide or Mo-oxide or Mo-dioxide or Mo-peroxide, 2-7% Cu, 10-40% Co, 30-80% WC or 88% WC and 12% Co. Powder materials are also suitable. Therefore, for example, there are 0,2-5% (:, 20-50 〇 / 〇 0, 1-20% 1 ^ 〇, 1-20%乂 〇.1-4% of 5 丨 or ugly, 0.1-5% of 1 ^ 11, 0.1-5% of Fe, 0.5-50% of carbides, oxides, nitrides, borides Applicable to Chinese national standards (CNS> A4 specifications (210 X 297 public love) ------------- install i — (please read the k-notes on the back before filling this page) Order: -line Ministry of Economy Employees of the Property Bureau, Consumer Cooperatives, the Intellectual Property Bureau of the Ministry of Economic Affairs, and the members of the Consumer Cooperatives. Λ: ___ Β7 ___ V. Description of the invention (6) or silicate, Mo-sulfide / -digas // oxide / · dophobate Or Mo-peroxide powders can be used. Among them, silicon and / or boron can each be provided with 0.1-5% and the balance is Ni. A particularly good material for this is composed of 20-30% Cr, M0% Mo. 2-3% C, 2-5% V, 0.2-1% Μη, 0.2-4% Si or Β And the balance consists of Ni. Alternatively, the 'filler 11' may be formed by a cladding method. At this time, the materials that can be used are: containing 2-20% of Al, 0.5-10% of Fe, 0.1 · 8% of Mn, 0.1-2% of Si. 0.1-10% of Ni, 0.1-2% of C and at least one Sb, Co, Be, Cr, Sn, Cd, Zn, Pb and the balance with a composition of up to 5.20%, and the balance is Cu. At this time, a particularly good composition may contain 14-17% Al, 3-5% Fe, 1-3% Mη, 0.1-2% Si, a maximum of 0.3% C, and a balance of Cu. The depth of the groove 10 indicated by d in FIG. 3 corresponds at least to the maximum wear thickness of the cylinder liner 4. Suitably, the depth d is larger than the maximum abrasion thickness, so that when the cylinder liner 2 is completely worn away, it can be ensured that the filler η still has good fixation in the substrate. Accordingly, when the cross-section of the trench 10 is represented by a cross-sectional shape 12 shown by a dotted line in FIG. 2, it is more advantageous when it is expanded inwardly. The preferred groove depth is in the range of 0.1 to 0.4% of the diameter D of the sliding surface 4. The width of the inner surface of the constructed oil well 8 corresponds to the distance of the assigned groove 10 of each of the prepared packings 11. The distance indicated by w in the second figure is preferably within the range of 2 to 2% of the diameter D of the sliding surface 4 ... the width of the inner surface of the trench 10 and the associated filler 11 The width b is preferably corresponding to the depth of the groove d, thereby obtaining stability against shearing force. It can be provided-or a plurality of oil pans 8 are assigned to this and each is equipped with a fill sheet. Edge (CNS: iA, 5 size 297 mm — 111 ----- ill * II — IIII order-11 — 1--I (Please read the precautions on the back before filling this page) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the consumer cooperative 463015 A7 ______B7____ 5. Description of the invention (7) The groove 10 of the material 11 is conveniently located. According to the current experience, the danger of insufficient lubrication and the corresponding thermal corrosion, which is of great risk The first thing to mention is that this is the case in the upper area of the sliding surface. In Figure 1, the sliding surface defined by the first and second piston rings 5 in the top dead center of the piston 6 In the area, the material provided for the construction of the oil well 8 is placed. The other oil well 8 and the material required for this can be placed on the lowermost piston The lower area of the ring $. In the embodiment shown, there is also a deeper oil well 8 provided. The oil well 8 and the corresponding material area defining these may be surrounded. In addition or in addition It is assumed that one or more oil wells 8 in a spiral shape and the corresponding 'spiral material area 9' which defines these. This can be extended in an area or over the entire guide length of the sliding surface 4. If it is spiral In the case of a shaped oil well 8, the slope indicated by p in the first section is between about 1.5% and 20¼ of the diameter D of the sliding surface 4. This slope can be maintained-determined over the entire length. Of course, it is also possible to consider changing the slope so that there is a ratio in the particularly dangerous area, and the thickness of the oil well is less in the less dangerous area. In the embodiment shown, the groove 10 and the corresponding, are also equipped with the filler. 11 has-right angle and trapezoidal cross-section. This inner edge can be passivated by the circle to avoid the stress of V-notch. First note on the back of MΛ · Fill S page}
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