WO2013094944A1 - 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치 - Google Patents
미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치 Download PDFInfo
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- WO2013094944A1 WO2013094944A1 PCT/KR2012/010987 KR2012010987W WO2013094944A1 WO 2013094944 A1 WO2013094944 A1 WO 2013094944A1 KR 2012010987 W KR2012010987 W KR 2012010987W WO 2013094944 A1 WO2013094944 A1 WO 2013094944A1
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- cylinder bore
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- wear
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
- F02F1/20—Other cylinders characterised by constructional features providing for lubrication
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- 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
Definitions
- fine irregularities are formed in consideration of an operating environment of an internal combustion engine in the vicinity of a top dead center and a bottom dead center of a piston, respectively, so that abrasion of a piston ring and a cylinder bore surface due to friction can be reduced, To an improved cylinder device.
- the present invention relates to a cylinder device with improved wear resistance by an optimal arrangement of fine irregularities that can reduce wear due to direct contact with a piston by reducing secondary behavior caused by friction or the like during linear reciprocating motion of the piston .
- the present invention relates to a cylinder apparatus having an optimal fine irregularity arrangement and a surface roughness which can reduce the consumption amount of engine oil by processing the cylinder bore surface so that the surface roughness becomes optimum.
- the internal combustion engine uses a cylinder device that moves by receiving explosive force by fuel combustion.
- fuel is injected into the cylinder device together with combustion air, ignited and exploded, and the cylinder device is operated by the explosive force.
- the cylinder device includes a cylinder block 10 and a piston 20 reciprocating in a straight line in the cylinder block 10.
- the cylinder block 10 may include a piston 20,
- the cylinder liner 11 having excellent wear characteristics may be inserted.
- the inner peripheral surface of the cylinder block 10 becomes the cylinder bore side (BS), and in the case of the type in which the cylinder liner 11 is further inserted The inner peripheral surface of the cylinder liner 11 becomes the cylinder bore surface BS '.
- a piston ring R is fitted to an upper portion of the piston 20 moving along the inside of the cylinder block 10 and a piston skirt 20a is provided at a lower portion of the piston 20.
- the piston 20 Is connected to the connecting rod 22 via the piston pin 21, the connecting rod 22 is connected to the crankshaft 23, and the CRS rotary shaft is fitted to the crankshaft 23.
- Methods for machining fine irregularities include laser surface texturing (LST), machining using a machine tool, ion beam machining using electric and physical energy of ions dissociated from gases in a vacuum state And a processing method through a semiconductor etching process.
- LST laser surface texturing
- machining using a machine tool machining using a machine tool
- ion beam machining using electric and physical energy of ions dissociated from gases in a vacuum state and a processing method through a semiconductor etching process.
- the fine irregularities When the fine irregularities are formed on the cylinder bore surfaces BS and BS 'through the above-described processing method, the fine irregularities generate a hydrodynamic pressure effect, serve to store the lubricating oil, And is being studied in various fields.
- the shape and arrangement of the fine irregularities that minimize friction and wear are greatly influenced by the operating conditions such as the contact type, the action load, the sliding speed, and the physical constraint of the two moving objects, There is a great difficulty in finding the optimal point to be minimized. Particularly, in the case of the engine cylinder liner 11, the sliding motion with the piston 20 occurs, and the conditions of motion thereof change continuously.
- the two contact surfaces become a mixed lubrication state in which solid contact or boundary lubrication states are mixed.
- the vicinity of the TDC is a high temperature operating environment due to the explosion stroke, the viscosity of the lubricant is low and the wear and friction environment of the cylinder liner 11 and the piston ring R are put into a worse condition.
- the piston 20 of the internal combustion engine is provided with a piston pin 21 for reciprocating the stroke distance S due to the combustion pressure and the friction force generated between the piston ring R and the cylinder bore surfaces BS and BS ' ), which is called a piston secondary motion.
- Korean Patent Publication No. 2011-26739 discloses that, (BS, BS ') to improve the lubrication performance while reducing the manufacturing cost and the machining time.
- Engine oil consumption is also one of the major problems that arise between the cylinder bore surface (BS, BS ') and the piston.
- the engine oil consumption is mainly generated between the cylinder bore surface (BS, BS ') and the piston (20).
- the engine oil is present between the fine honing grooves on the cylinder bore surfaces BS and BS '.
- the oil is evaporated under high temperature conditions or is introduced into the combustion chamber by the piston ring R during the rising stroke of the piston.
- the engine oil is burned in the combustion process, which consumes engine oil.
- the piston ring R is composed of a top ring, a second ring, and an oil ring. In this case, it is necessary to optimize the state of each ring to reduce the consumption of engine oil while preventing the degradation of lubrication performance. In order to improve the fuel efficiency of the engine, a method of minimizing the tension of the piston ring R is used. However, if the tension of the piston ring R is excessively reduced, the consumption of engine oil is increased.
- the present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to improve the lubricating property between the piston ring and the cylinder bore surface by machining fine irregularities in the optimal selection region of the cylinder bore surface, And to provide a cylinder apparatus having an optimal fine concavo-convex arrangement and surface roughness that can reduce the amount of engine oil consumption by processing the cylinder bore surface so that the surface roughness of the cylinder bore surface is optimized.
- the present invention provides a cylinder device improved in wear resistance by an optimal arrangement of fine irregularities capable of reducing wear caused by direct contact with a piston by reducing secondary behavior caused by friction or the like during linear reciprocating motion of the piston do.
- a cylinder device having an optimal fine concavo-convex arrangement and surface roughness according to the present invention is formed on a cylinder bore surface inside a cylinder block, and has a ratio of 8% to 32% from a top dead center of a piston reciprocating linearly along the cylinder bore surface And a concavity and convexity formed by processing a plurality of fine concavities and convexities in a distance region.
- the fine unevenness is a dimple-shaped fine groove having a circular section.
- the fine grooves have a diameter (Db) of 0.07 to 0.17 mm, a depth (Dc) of 0.01 to 0.03 mm, and a density of 5 to 15%.
- the surface roughness of the cylinder bore surface in the piston stroke region is Ra 0.18 to 0.40.
- the cylinder apparatus improved in wear resistance by the optimal arrangement of fine irregularities according to the present invention is formed on the cylinder bore side inside the cylinder block and is provided with a piston which is reciprocating linearly along the cylinder bore surface from 5% A first irregular portion formed by processing a plurality of fine irregularities in a 35% distance region; And a second concavo-convex portion formed on a cylinder bore surface inside the cylinder block, the second concavo-convex portion being formed by machining a plurality of minute concavo-convex portions in a range of 100% to 140% from the top dead center of the piston.
- the second concavo-convex part is formed by machining a plurality of minute concavo-convex parts in a range of 110% to 130% from the top dead center of the piston, and the second concavo-convex part is formed on the thrust side Is formed in the range of 120 to 180 degrees from the center point or is formed in the range of 120 to 180 degrees from the center point of the anti-thrust side existing on the cylinder bore surface, And 120 ° to 180 ° from the center point of the anti-thrust surface, respectively.
- the fine unevenness constituting each of the first irregular portion and the second irregular portion is a dimple-shaped fine groove having a circular section.
- the fine grooves have a diameter of 100 to 150 ⁇ m, a depth of 10 to 20 ⁇ m, and an arrangement interval of 350 ⁇ m to 450 ⁇ m.
- the fine irregularities for retaining the oil film formation on the cylinder bore surface and collecting the minute abrasion are formed, Thereby making it possible to reduce wear of the surface.
- the surface roughness of the cylinder bore surface is optimized so that the engine oil of the cylinder bore is prevented from flowing into the combustion space during the lifting stroke of the piston, the consumption of the engine oil can be reduced Let's do it.
- fine irregularities such as the above are formed on the thrust surface and the anti-thrust surface, and the secondary behavior caused by friction or the like during the linear reciprocating motion of the piston The abrasion due to direct contact with the piston can also be reduced.
- FIG. 1 is a front sectional view showing a general cylinder device.
- Fig. 2 is a partial view showing a cylinder apparatus having an optimal fine irregularity arrangement and surface roughness according to the present invention.
- Fig. 3 is an enlarged view showing fine irregularities of a cylinder apparatus having an optimum fine irregularity arrangement and surface roughness according to the present invention.
- Fig. 4 is a graph showing the distribution of abrasion on the cylinder bore of a cylinder apparatus having an optimal fine irregularity arrangement and surface roughness.
- Fig. 5 is a graph showing the abrasion state of the piston ring when the abrasion test is performed in the state where fine unevenness is formed on the cylinder bore surface.
- FIG. 6 is a graph showing a state of wear when a wear test is performed in a state in which the surface roughness of the cylinder bore surface is adjusted.
- FIG. 7 is a partial view showing a cylinder device improved in wear resistance by a microstructure optimal arrangement according to another embodiment of the present invention.
- FIG. 8 is a partial view showing a cylinder device improved in wear resistance by a fine irregularity optimum arrangement according to another embodiment of the present invention.
- FIG. 9 is a graph showing the distribution of abrasion on the cylinder bore of a cylinder apparatus improved in wear resistance by the optimum arrangement of fine irregularities according to the present invention.
- Piston pin 22 Connector ring
- crankshaft (CRS) 30 concave / convex portion, first concave / convex portion
- cylinder bore surfaces BS and BS 'described below refer to the surfaces directly contacting the piston 20 that reciprocates linearly.
- the cylinder bore surfaces BS and BS' are of a type that does not further insert the cylinder liner 11
- the inner circumferential surface of the cylinder block 10 will be the cylinder bore surface BS.
- the inner peripheral surface of the cylinder liner 11 will be the cylinder bore surface BS ', and the inner surface of the cylinder block 10 will be coated with various layers (Not shown), the coating layer will be the cylinder bore surface.
- the cylinder device having the optimum fine irregularity arrangement and surface roughness according to the present invention is formed on the cylinder bore surfaces BS and BS 'inside the cylinder block 10 and has a stroke range S (TDC) of the piston (20) reciprocating linearly in the piston (20).
- the shape of the concave and convex portions, the arranging method and the machining area must be determined optimally, Shape, arrangement method and machining area are greatly influenced by the operating conditions such as the contact form, load, and sliding speed of the two surfaces.
- the shape and arrangement method of the concavities and convexities for minimizing friction and wear are different. Therefore, the development of the surface irregularity technique for reducing friction and abrasion should be defined first in terms of the operating environment and the operating condition, and the shape and arrangement of fine irregularities should be selected under a predetermined operating environment or operating condition.
- the concave-convex part 30 of the present invention is positioned in the range of A to B at 8 to 32% distance from the TDC of the piston 20 reciprocating linearly along the cylinder bore surfaces BS and BS ' And is formed by processing a plurality of fine irregularities (31).
- the diameter Db of the fine grooves is 0.07 to 0.17 mm
- the depth Dc (diameter) of the fine grooves is in the range of 0.07 to 0.17 mm
- the density is preferably 5 to 15%.
- the density is obtained from the ratio of the area of the quadrangular area (indicated by the dotted line) where the fine unevenness 31 is formed to the area of the fine unevenness 31 in FIG. That is, the density is obtained as Da 2 / (r 2 ) 2 , where r is Db / 2.
- the liquid lubricant faded in the fine irregularities 31 contributes to maintaining the oil film formation, Improving the state and reducing the wear occurring at the interface.
- the lubricant which remains in the fine irregularities 31 is provided and the wear particles, which are the factors accelerating the wear of the fine irregularities 31, are collected, so that the overall wear rate can be remarkably reduced.
- the cylinder bore surfaces BS and BS ' are prevented from being operated in a state where the engine oil is insufficient due to the high combustion pressure and the combustion heat due to the operation characteristics of the internal combustion engine.
- At least the region of the cylinder bore surface BS, BS 'within the piston stroke distance S from the top dead center (TDC) of the piston has a surface roughness Ra of 0.18 to 0.40, This makes it possible to reduce the consumption of the engine oil while the wear of the surfaces BS and BS 'is small.
- the present invention optimizes the surface roughness of the cylinder bore surface (BS, BS ') to Ra 0.18 to 0.40, thereby reducing the consumption of engine oil and preventing the abrasion of the cylinder bore and the piston ring (R) do.
- the diameter, depth and density of the fine unevenness (31) are determined as design variables, and the diameter is Db, the depth is Dc, and the density is Da 2 / ( ⁇ r) 2 . Where r is Db / 2.
- 'UnTexture' is the maximum wear of the piston ring R when the fine concavities and convexities 31 of the present invention are not worked
- 'Dim2-1', 'Dim Mid' and 'Dim 2-5' 2-1 ',' 2 Mid 'and' 2-5 'in Table 2 are the maximum wear of the piston ring R processed.
- the shapes and machining areas of the fine irregularities 31 having the best abrasion reduction effect are applied to the cylinder bore surfaces BS and BS 'as shown in Table 3 and then the cylinder bore surfaces BS, BS ') from the top dead center (TDC) to the stroke distance S of Ra 0.12 ⁇ 0.41 to investigate the wear of the engine oil and the wear of the piston ring and the cylinder bore in the actual engine condition.
- Fig. 6 shows the test results of [Table 3].
- the amount of wear of the cylinder bore surfaces BS and BS 'and the piston ring R also decreases with respect to the reference specimen. However, if the surface roughness Ra is excessively low, the oil content of the cylinder bore surfaces BS and BS' The wear of the piston ring R is rather increased because the lubricating condition of the piston ring R and the cylinder bore surfaces BS and BS 'is deteriorated.
- the surface roughness of the cylinder bore surfaces BS and BS' is Ra 0.18 to 0.40 It can be seen that it is suitable.
- the cylinder apparatus improved in wear resistance by the optimal arrangement of fine irregularities is formed on the cylinder bore surfaces BS and BS 'in the cylinder block 10 (30) formed near the top dead center (TDC) of the piston (20) linearly reciprocating within the range of the stroke (S) and a portion formed near the bottom dead center (BDC) 2 concavo-convex portion 40 as shown in Fig.
- the shape of the concave and convex portions, the arranging method and the machining area must be determined optimally, Shape, arrangement method and machining area are greatly influenced by the operating conditions such as the contact form, load, and sliding speed of the two surfaces.
- the shape and arrangement method of the concavities and convexities for minimizing friction and wear are different. Therefore, the development of the surface irregularity technique for reducing friction and abrasion should be defined first in terms of the operating environment and the operating condition, and the shape and arrangement of fine irregularities should be selected under a predetermined operating environment or operating condition.
- the first concavo-convex part 30 is spaced from the top dead center (TDC) of the piston 20 linearly reciprocating along the cylinder bore surface BS, BS 'by 5% to 35% Are formed by processing a plurality of fine irregularities (31) in the regions (A) to (B).
- the second concavo-convex part 40 is formed on the cylinder bore surface BS, BS 'inside the cylinder block 10 and is located at a distance of 100% to 140% from the top dead center TDC of the piston 20 C to D).
- the first concave-convex portion 30 is formed of a plurality of fine concavities and convexities 31 and is formed continuously along the circumferential direction of the cylinder bore surfaces BS and BS '. 3, each of the fine irregularities 31 has a dimple-shaped fine groove having a circular cross section.
- the diameter Db of the fine groove is 100 to 150 um, Is 10 to 20 mu m, and the arrangement interval Da is preferably 350 to 450 mu m.
- the liquid lubricant trapped in the fine irregularities 31 and 41 maintains the oil film formation Thereby improving the lubrication condition and reducing wear occurring at the interface.
- the cylinder device improved in wear resistance by the optimal micro-irregularity arrangement has cylinder bore surfaces BS, BS 'inside the cylinder block 10, A first concavo-convex portion 30 formed in the vicinity of the TDC of the piston 20 linearly reciprocating within the range of the stroke distance S and a second concavo-convex portion 30 formed in the vicinity of the bottom dead center BDC 40a.
- the first concave-convex part 30 is divided into a plurality of fine areas A to B at 5 to 35% distance from the top dead center (TDC) of the piston 20 which linearly reciprocates along the cylinder bore surfaces BS and BS ' And is formed by processing the concave and convex portions 31.
- the first concavo-convex part 30 is formed continuously in the circumferential direction of the cylinder bore surfaces BS and BS ', and is the same as the above-described embodiment of the present invention.
- the second concave-convex portion 40a is formed by machining a plurality of fine concavities and convexities 41 in a region C 'to D' of 110% to 130% distance from the top dead center TDC of the piston 20
- the present invention is different from the embodiment of the present invention in which fine unevenness 41 is formed in a region C to D of 100% to 140% from the top dead center TDC of the piston 20.
- the second concavo-convex portion 40a is formed at an angle of 120 deg. To 120 deg. From the center point of the thrust side existing on the cylinder bore surface BS, BS ' 180 ° from the central point of the anti-thrust side, or in the range of 120 ° to 180 ° from the center point of the anti-thrust side.
- the second concavo-convex portion 40a has a direction perpendicular to the 'CRS rotation axis' (that is, the center point of the thrust surface or the anti-thrust surface) of the crankshaft 23 as shown in FIG. 8 May be formed in the range of 120 to 180 degrees in the clockwise direction as a reference point, but may be formed in the range of 120 to 180 in the counterclockwise direction.
- the fine unevenness 41 of the second concave-convex portion 40a is formed by a dimple-shaped fine groove having a circular section in the same manner as in the embodiment of the present invention described with reference to Fig.
- the diameter Db of each fine groove is 100 to 150 um
- the depth Dc is 10 to 20 um
- the arrangement interval Da is 350 to 450 um.
- the piston 20 is configured such that the explosion pressure of the engine combustion chamber acts on the piston pin 21 by the pressure distribution applied to the upper surface of the piston 20 and the frictional force between the piston ring R and the cylinder bore surface BS, BS ' And then descends toward the center.
- the outer surface of the piston 20 in the tilted direction is referred to as a thrust surface and the direction opposite thereto is referred to as an anti-thrust surface.
- the present invention is characterized in that the thrust surface of the cylinder bore surface BS, BS ' And the fine irregularities 31 and 41 are formed on the surface corresponding to the tapered surface to reduce friction and abrasion.
- the piston 20 including the piston skirt 20a as well as the cylinder bore surfaces BS and BS 'and the piston ring R is entirely supported by the cylinder bore surfaces BS, BS '), which is caused by direct contact with the wearer, can be significantly reduced.
- the minute irregularities 31 and 41 of circular shape were processed into a rectangular arrangement so that the diameter Db of the fine concavities and convexities 31 and 41 was 100 mm, the depth Dc was 15 mm, and the arrangement interval Da was 350 mm, 8, the first concave-convex portion 30 near the top dead center (TDC) is machined on the entire cylinder bore surfaces BS and BS ', and the second concave-convex portion 40a near the bottom dead center BDC is machined Trust / Anti-Trust Only partially processed.
- TDC top dead center
- Test results The abrasion improving effects of Examples 2 and 5 of Table 4 were excellent, but this is not an optimal example. Therefore, the results of the nine tests of Table 4 were statistically analyzed, Example 10 "
- the diameter Db, the depth Dc and the arrangement (diameter) of the circular micro concavities and convexes 31 and 41 are adjusted in order to further optimize the abrasion reduction of the piston ring R and the cylinder bore surfaces BS and BS '
- the abrasion test was carried out as shown in Table 6, using the gap Da as a design parameter.
- the machining area of the fine irregularities 31 and 41 was set to be the same as that of the example 10 '.
- Example 10 shown in Table 7 shows the test results before optimization of the design parameters of the circular fine irregularities 31 and 41 and Comparative Example shows that the test results of the fine irregularities 31 and 41 were not processed to be.
- Example 20 As can be seen in Table 7, the abrasion amount of Example 20 was improved by 58% or more of the abrasion amount of Comparative Example, and the abrasion improving effect was superior to that of Example 10.
- the present invention can be applied to a cylinder apparatus having a wear-resistant characteristic by an optimal arrangement of fine irregularities capable of reducing wear on a piston ring and a cylinder bore surface due to friction.
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- Pistons, Piston Rings, And Cylinders (AREA)
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Abstract
Description
Claims (8)
- 실린더 블럭(10) 내부의 실린더 보어면(BS, BS')에 형성되며, 상기 실린더 보어면(BS, BS')을 따라 직선왕복운동하는 피스톤(20)의 상사점(TDC)으로부터 8% 내지 32% 거리 영역에 복수개의 미세요철(31)을 가공하여 형성된 요철부(30)를 포함하는 것을 특징으로 하는 최적의 미세요철 배치 및 표면 거칠기를 갖는 실린더 장치.
- 제1항에 있어서,상기 미세요철(31)은 단면이 원형인 딤플(dimple) 형상의 미세홈인 것을 특징으로 하는 최적의 미세요철 배치 및 표면 거칠기를 갖는 실린더 장치.
- 제2항에 있어서,상기 미세홈은 직경(Db)은 0.07 내지 0.17mm이고, 깊이(Dc)는 0.01 내지 0.03mm이며, 밀도는 5 내지 15%인 것을 특징으로 하는 최적의 미세요철 배치 및 표면 거칠기를 갖는 실린더 장치.
- 제1항 내지 제3항 중 어느 하나의 항에 있어서,상기 실린더 보어면(BS, BS') 중 피스톤 행정거리(S) 영역 내의 표면 거칠기는 Ra 0.18 내지 0.40인 것을 특징으로 하는 최적의 미세요철 배치 및 표면 거칠기를 갖는 실린더 장치.
- 실린더 블럭(10) 내부의 실린더 보어면(BS, BS')에 형성되며, 상기 실린더 보어면(BS, BS')을 따라 직선왕복운동하는 피스톤(20)의 상사점(TDC)으로부터 5% 내지 35% 거리 영역에 복수개의 미세요철(31)을 가공하여 형성된 제1요철부(30); 및상기 실린더 블럭(10) 내부의 실린더 보어면(BS, BS')에 형성되며, 상기 피스톤(20)의 상사점(TDC)으로부터 100% 내지 140% 거리 영역에 복수개의 미세요철(41)을 가공하여 형성된 제2요철부(40);를 포함하는 것을 특징으로 하는 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치.
- 제5항에 있어서,상기 제2요철부(40)는,상기 피스톤(20)의 상사점(TDC)으로부터 110% 내지 130% 거리 영역에 복수개의 미세요철(41)을 가공하여 형성되며, 상기 제2요철부(40a)는 상기 실린더 보어면(BS, BS')에 존재하는 트러스트면(thrust side)의 중심점으로부터 120°내지 180°범위에 형성되어 있거나, 상기 실린더 보어면(BS, BS')에 존재하는 안티-트러스트면(anti-thrust side)의 중심점으로부터 120°내지 180°범위에 형성되어 있거나, 혹은 상기 트러스트면의 중심점으로부터 120°내지 180°범위와 상기 안티-트러스트면의 중심점으로부터 120°내지 180°범위에 각각 형성되어 있는 것을 특징으로 하는 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치.
- 제5항 또는 제6항에 있어서,상기 제1요철부(30)와 제2요철부(40, 40a)를 각각 구성하는 미세요철(31, 41)은,단면이 원형인 딤플(dimple) 형상의 미세홈인 것을 특징으로 하는 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치.
- 제7항에 있어서,상기 미세홈은,직경(Db)은 100 내지 150um이고, 깊이(Dc)는 10 내지 20um이며, 배열 간격(Da)은 350um 내지 450um인 것을 특징으로 하는 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치.
Priority Applications (2)
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CN201280063003.9A CN103998755B (zh) | 2011-12-19 | 2012-12-17 | 通过微细凹凸的最佳配置而改善了耐磨损性的气缸装置 |
US14/365,481 US9759325B2 (en) | 2011-12-19 | 2012-12-17 | Cylinder device having improved wear resistance through optimal arrangement of fine textures |
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KR10-2011-0137705 | 2011-12-19 | ||
KR10-2011-0137703 | 2011-12-19 | ||
KR1020110137703A KR101911550B1 (ko) | 2011-12-19 | 2011-12-19 | 미세요철 최적 배치에 의해 내마모성이 개선된 실린더 장치 |
KR1020110137705A KR20130070399A (ko) | 2011-12-19 | 2011-12-19 | 최적의 미세요철 배치 및 표면 거칠기를 갖는 실린더 장치 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08200145A (ja) * | 1995-01-19 | 1996-08-06 | Hino Motors Ltd | エンジンのシリンダ |
JP2010255847A (ja) * | 2009-03-31 | 2010-11-11 | Nippon Piston Ring Co Ltd | シリンダ |
KR20110026739A (ko) * | 2009-09-08 | 2011-03-16 | 두산인프라코어 주식회사 | 내벽면에 요철이 형성된 실린더 |
KR20110071176A (ko) * | 2009-12-21 | 2011-06-29 | 두산인프라코어 주식회사 | 엔진의 실린더라이너 보어의 미세그루브 구조 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10302107A1 (de) * | 2003-01-21 | 2004-07-29 | Fuchs Technology Ag | Zylinderoberfläche |
JP4287180B2 (ja) * | 2003-04-10 | 2009-07-01 | 本田技研工業株式会社 | アルミニウム基複合材製ライナ及びその製造方法 |
GB2410313B (en) * | 2004-01-22 | 2007-08-08 | Ford Global Tech Llc | An engine and a method of making same |
JP2007046660A (ja) * | 2005-08-09 | 2007-02-22 | Nissan Motor Co Ltd | 摺動受部材 |
US7104240B1 (en) * | 2005-09-08 | 2006-09-12 | Deere & Company | Internal combustion engine with localized lubrication control of combustion cylinders |
CN101153567A (zh) * | 2006-09-25 | 2008-04-02 | 韦斌 | 支持欧ⅲ排放标准的气缸套材质及其珩磨工艺 |
US8381696B2 (en) * | 2007-10-05 | 2013-02-26 | Nippon Piston Ring., Ltd. | Cylinder |
-
2012
- 2012-12-17 WO PCT/KR2012/010987 patent/WO2013094944A1/ko active Application Filing
- 2012-12-17 US US14/365,481 patent/US9759325B2/en active Active
- 2012-12-17 CN CN201280063003.9A patent/CN103998755B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08200145A (ja) * | 1995-01-19 | 1996-08-06 | Hino Motors Ltd | エンジンのシリンダ |
JP2010255847A (ja) * | 2009-03-31 | 2010-11-11 | Nippon Piston Ring Co Ltd | シリンダ |
KR20110026739A (ko) * | 2009-09-08 | 2011-03-16 | 두산인프라코어 주식회사 | 내벽면에 요철이 형성된 실린더 |
KR20110071176A (ko) * | 2009-12-21 | 2011-06-29 | 두산인프라코어 주식회사 | 엔진의 실린더라이너 보어의 미세그루브 구조 |
Cited By (7)
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---|---|---|---|---|
JP2015169199A (ja) * | 2014-03-11 | 2015-09-28 | 本田技研工業株式会社 | 2ストロークエンジンのシリンダ潤滑装置 |
US20170009886A1 (en) * | 2015-07-10 | 2017-01-12 | Ford Global Technologies, Llc | Bearing interface with recesses to reduce friction |
US10385970B2 (en) * | 2015-07-10 | 2019-08-20 | Ford Global Technologies, Llc | Bearing interface with recesses to reduce friction |
CN110462193A (zh) * | 2017-03-22 | 2019-11-15 | 阿凯提兹动力公司 | 用于对置活塞发动机的汽缸孔表面结构 |
CN110462193B (zh) * | 2017-03-22 | 2022-04-12 | 阿凯提兹动力公司 | 用于对置活塞发动机的汽缸孔表面结构 |
CN108747798A (zh) * | 2018-05-29 | 2018-11-06 | 中原内配集团股份有限公司 | 一种差异化珩磨气缸套及其制备方法 |
CN108747798B (zh) * | 2018-05-29 | 2023-09-12 | 中原内配集团股份有限公司 | 一种差异化珩磨气缸套及其制备方法 |
Also Published As
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CN103998755A (zh) | 2014-08-20 |
US20140345453A1 (en) | 2014-11-27 |
US9759325B2 (en) | 2017-09-12 |
CN103998755B (zh) | 2016-07-06 |
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