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41. 发明专利

JP2000297695A PISTON FOR CYLINDER INJECTION TYPE INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000297695A
公开(公告)日：2000-10-24
申请号：JP10212899
申请日：1999-04-09
申请人： ART METAL MFG CO LTD , TOYOTA MOTOR CORP
发明人： KANAI SHOJI , SHIMURA SETSU
IPC分类号： F02B23/10 , F02B75/12 , F02F3/26
摘要： PROBLEM TO BE SOLVED: To reduce HC emission by an insulation effect of an insulating layer, immediately after starting an engine by disposing heat insulating means a heat insulating space provided between metal plates, which are joined to a fuel colliding part on the top surface of a piston which is subjected to a fuel blow. SOLUTION: An insulating member 20 is provided on a recess part formed on the top surface of a piston 5 corresponding to the shape thereof. The insulating member 20 comprises a pair of metal plates 21, 22, such that one metal plate 21 is provided uniformly with many holes 23 having a bottom and a round cross section. For the other metal plate 22 bonded thereto, air is sealed in the holes 23. The other metal plate 22 is made of a heat resistant stainless steel plate, formed with a thickness smaller than the metal plate 21. It is preferable that the metal plate 22 have low specific heat and is made as thin as possible. The insulating member 20 is bonded and fixed to the recess part of a cylinder head through thermal spraying on the bottom surface of the metal plate 21 and by a high-pressure casting method.

42. 发明专利

JP2000170912A PISTON FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000170912A
公开(公告)日：2000-06-23
申请号：JP34985098
申请日：1998-12-09
申请人： ART METAL MFG CO LTD
发明人： SATO TAKESHI , IDE MASAHIKO
IPC分类号： F02B75/32 , F02F3/00 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To prevent buckling of a bush and reduce compression height, that is, measurement from a top surface of a piston main body to a center of a pin hole on an inner periphery of a bush through easy improvement of the bush, in a piston for an internal combustion engine prepared by press-fitting a circular bush through which piston pin penetrates to a boss hole formed on a pin boss of the piston main body. SOLUTION: A bush 3 has a circular outer peripheral form and a circular pin hole 30 at its inner periphery. A center of the pin hole 30 is eccentrically located on the side of a top 11 of a piston main body 1 compared to the center of the outer peripheral form of the bush 3. Thickness of an upper portion 3a of the bush located at the side of the top 11 of the piston main body 1 in respect to a center of a boss hole 21 is less than the thickness of side portions 3b of the bush on peripherally both sides of the piston main body 1 in respect to the center of the boss hole 21.

43. 发明专利

JP2000039065A PISTON STRUCTURE 失效
公开(公告)号：JP2000039065A
公开(公告)日：2000-02-08
申请号：JP20789698
申请日：1998-07-23
申请人： TOYOTA MOTOR CORP , ART METAL MFG CO LTD
发明人： SUZUKI TAKAO , DEGUCHI MASAO , ITO TOMOHARU , MAEDA YORISHIGE , SUZUKI KOICHI
IPC分类号： F02F3/00 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of sever rubbing between a skirt and a cylinder bore, in a piston structure wherein a centrally arranged single pin boss is provided and the skirt is supported by a support rib extending from the pin boss. SOLUTION: Skirts 3 and 4 are supported by support ribs 5 and 6 stretched from a pin boss 2 arranged at a central part. The axially stretching recessed parts 7 and 8 of a piston 1 are formed in the part on the outer peripheral side of a coupling part between the skirts 3 and 4 and the support ribs 5 and 6 and the widths T in a peripheral direction of the recessed parts 7 and 8 are approximately equal to the widths D of the support ribs 5 and 6.

44. 发明专利

JP2014152375A Piston material for internal combustion engine and method of manufacturing the same 审中-公开
标题翻译：用于内燃机的活塞材料及其制造方法
公开(公告)号：JP2014152375A
公开(公告)日：2014-08-25
申请号：JP2013025142
申请日：2013-02-13
申请人： Art Metal Mfg Co Ltd , アート金属工業株式会社
发明人： WATANABE TADASHI , FUJIWARA NOBUYUKI
IPC分类号： C22C21/02 , C22F1/00 , C22F1/043 , F02F3/00
摘要： PROBLEM TO BE SOLVED: To provide a high strength and light weight piston material for an internal combustion engine, which has high thermal conductivity and whose strength reduction due to temperature influence is prevented, and to provide a method of manufacturing the piston material.SOLUTION: The piston material for an internal combustion engine is an Al-Si-based alloy material having an electric conductivity (%IACS) of 18 or more. It is preferable that an Al-Cu-Mg-based compound having a size of 1 μm or less is deposited uniformly and that the total area ratio of an Al-Fe-Mn-Ni-Cr-based crystallized product and an Al-Cu-Ni-based crystallized product at a cutting cross section is 10% or less. Also it is preferable that Cu is contained in the range of 1.2 mass% to 5 mass% and Cr is contained in an amount of 0.05 mass% or more. The piston material is manufactured by casting an Al-Si-based alloy containing Cu n the range of 1.2 mass% to 5 mass% and containing Cr in an amount of 0.05 mass% or more, and subjecting the cast Al-Si-based alloy to aging treatment.
摘要翻译：要解决的问题：提供一种用于内燃机的高强度和重量轻的活塞材料，其具有高导热性并且防止了由于温度影响而导致的强度降低，并提供了制造活塞材料的方法。解决方案：用于内燃机的活塞材料是具有18或更高导电率（％IACS）的Al-Si基合金材料。优选均匀地沉积1μm以下的Al-Cu-Mg类化合物，并且Al-Fe-Mn-Ni-Cr系结晶体和Al-Cu的总面积比 -N基的结晶化物在切断截面为10％以下。此外，优选Cu为1.2质量％〜5质量％的范围，Cr的含量为0.05质量％以上。活塞材料通过将含有Cu的Al-Si系合金以1.2质量％〜5质量％的范围进行铸造，并含有0.05质量％以上的Cr，并对铸造Al-Si系合金老化治疗。

45. 发明专利

JP2013245599A Piston for internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2013245599A
公开(公告)日：2013-12-09
申请号：JP2012119115
申请日：2012-05-25
申请人： Art Metal Mfg Co Ltd , アート金属工業株式会社
发明人： KOMATSU TAKAAKI
IPC分类号： F02F3/00 , F01M1/06 , F01M1/08 , F16C7/02 , F16C9/04 , F16J1/16 , F16J7/00
摘要： PROBLEM TO BE SOLVED: To reduce a size and weight in a piston, without reducing strength and rigidity of a piston pin, in the piston for an internal combustion engine.SOLUTION: A piston for an internal combustion engine has a structure for rockingly supporting a connecting rod, by inserting a piston pin into one end part of the connecting rod on the crown surface part side of the piston, and is characterized in that both end parts of the piston pin and a bearing surface of the connecting rod, are arranged on the crown surface part side of the piston, and both end parts of the piston pin and the one end part of the connecting rod, slide together with the bearing surface in operation.
摘要翻译：要解决的问题：为了减小活塞中的尺寸和重量，而不降低活塞销在内燃机的活塞中的强度和刚性。解决方案：内燃机的活塞具有用于摇摆支撑的结构连杆，通过将活塞销插入到活塞的冠表面部分侧的连杆的一个端部中，其特征在于，活塞销的两个端部和连杆的支承表面布置在活塞的冠面部分侧，活塞销的两端部和连杆的一端部与运转中的支承面一起滑动。

46. 发明专利

JP2013209963A Piston structure 审中-公开
标题翻译：活塞结构
公开(公告)号：JP2013209963A
公开(公告)日：2013-10-10
申请号：JP2012081938
申请日：2012-03-30
申请人： Daihatsu Motor Co Ltd , ダイハツ工業株式会社 , Toyota Motor Corp , トヨタ自動車株式会社 , Art Metal Mfg Co Ltd , アート金属工業株式会社
发明人： SAKAMOTO RYUJI , MIZOGUCHI MASARU , IKEDA MASAKI
IPC分类号： F02F3/00 , F16J1/08
摘要： PROBLEM TO BE SOLVED: To provide a piston structure capable of preventing deterioration in oil consumption, by excellently holding a horizontal state of an oil ring, even when a piston pin hole and an oil ring groove are formed in close vicinity to each other.SOLUTION: In an eaves part 10 of separating an oil ring groove 4 and a piston pin hole 6 of a piston 1 for forming compression ring grooves 2 and the oil ring groove 4 in order from above the outer periphery, a vertical groove 12 is formed in a position where the oil ring groove 4 and the piston pin hole 6 are in closest vicinity to each other. This vertical groove 12 reaches the same depth as a side peripheral wall surface 4a of the oil ring groove 4. An interval between the lowest surface 4b of the oil ring groove 4 and the uppermost surface 6a of the piston pin hole 6 is smaller than a thickness dimension of a partition wall 8 for separating the oil ring groove 4 and the compression ring groove 2.
摘要翻译：要解决的问题：即使当活塞销孔和油环槽彼此靠近形成时，通过极好地保持油环的水平状态来提供能够防止油耗降低的活塞结构。解决方案在从外周起依次分离用于形成压缩环槽2和油环槽4的活塞1的油环槽4和活塞销孔6的檐部10中，形成有垂直槽12 油环槽4和活塞销孔6最靠近的位置。该垂直槽12与油环槽4的侧壁面4a达到相同的深度。油环槽4的最下表面4b与活塞销孔6的最上表面6a之间的间隔小于用于分离油环槽4和压缩环槽2的分隔壁8的厚度尺寸。

47. 发明专利

JP2012246863A Piston and slide coating structure 有权
标题翻译：活塞和滑动涂层结构
公开(公告)号：JP2012246863A
公开(公告)日：2012-12-13
申请号：JP2011120266
申请日：2011-05-30
申请人： Shinshu Univ , 国立大学法人信州大学 , Art Metal Mfg Co Ltd , アート金属工業株式会社
发明人： ARAI SEIDAI , SEKINO MITSURU , ITO ISAMU , KANAI SHOJI , NARUSAWA MASARU , KANAZAWA YUICHIRO
IPC分类号： F02F3/10 , F02F3/00 , F16J1/01 , F16J1/02
摘要： PROBLEM TO BE SOLVED: To provide a piston which improves sliding with a member such as a cylinder, and improves durability and fuel efficiency, and to provide a slide coating structure which improves the slide of a sliding portion of members contacting each other.SOLUTION: In the piston 6 which has a coating 6a that improves sliding on a surface of a substrate of a sliding portion, in the coating 6a, a resin material to which a nanocarbon member is added is subject to cure treatment and in close contact with the substrate, and the nanocarbon member whose edge projects from the surface of the coating 6a exists in a vicinity of a surface of the coating 6a.
摘要翻译：要解决的问题：提供一种改善与诸如气缸的构件的滑动的活塞，并且提高耐久性和燃料效率，并且提供一种滑动涂层结构，其改善了彼此接触的构件的滑动部分的滑动。解决方案：在具有改善滑动部分的基底表面上的滑动的涂层6a的活塞6中，在涂层6a中，加入纳米碳构件的树脂材料进行固化处理，并且在与基板紧密接触，并且从涂层6a的表面突出边缘的纳米碳构件存在于涂层6a的表面附近。版权所有（C）2013，JPO＆INPIT

48. 发明专利

JP2010048193A Method for surface treatment of piston ring for internal combustion engine, and piston ring for internal combustion engine 审中-公开
标题翻译：内燃机活塞环表面处理方法及内燃机活塞环
公开(公告)号：JP2010048193A
公开(公告)日：2010-03-04
申请号：JP2008214255
申请日：2008-08-22
申请人： Art Metal Mfg Co Ltd , Fuji Kihan:Kk , アート金属工業株式会社 , 株式会社不二機販
发明人： IWAMURO MINORU , FUJIWARA NOBUYUKI , NAKASONE HIDEAKI , MIYASAKA YOSHIO
IPC分类号： F02F5/00 , B01J21/06 , B01J23/14 , B01J35/02 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To provide a piston ring for an internal combustion engine, simultaneously providing effects such as prevention of accumulation of deposit, prevention of adhesion of a side surface, improvement in abrasion resistance, reduction in contact resistance with the inner wall of a cylinder, and reduction in aggressiveness with respect to the inner wall of the cylinder.
SOLUTION: Injection particles for forming a coating film, with a mean particle size of 20-400 μm, containing metallic elements (catalyzed metallic elements) exhibiting a photocatalytic function by oxidation, for example, titanium, tin, zinc, tungsten and zirconia, are injected at injection speed of 80 m/s or higher or under injection pressure of 0.2 MPa or higher, and are collided with the surface of the iron alloy piston ring. By injection and collision, the catalyzed metallic elements in the injection particles for forming the coating film are diffused and permeated in the proximity of the surface of the piston ring, and also oxidized, thereby forming an oxidized coating film with the component metal of the piston ring and oxidized catalyzed metallic elements alloyed.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于内燃机的活塞环，同时提供防止沉积堆积，防止侧面粘附的效果，改善耐磨性，降低与内部的接触电阻圆柱体的壁，并且相对于圆筒的内壁的侵蚀性降低。解决方案：用于形成平均粒径为20-400μm的涂膜的注射颗粒含有通过氧化显示出光催化功能的金属元素（催化金属元素），例如钛，锡，锌，钨和氧化锆以80m / s以上的注射速度或0.2MPa以上的注射压力注入，并与铁合金活塞环的表面碰撞。通过注射和碰撞，用于形成涂膜的注射颗粒中的催化金属元素在活塞环表面附近扩散并渗透，并且被氧化，从而与活塞的组分金属形成氧化的涂膜环和氧化催化金属元素合金化。版权所有（C）2010，JPO＆INPIT

49. 发明专利

JP2008267158A Piston for internal combustion engine and method for manufacturing the same 审中-公开
标题翻译：内燃机用活塞及其制造方法
公开(公告)号：JP2008267158A
公开(公告)日：2008-11-06
申请号：JP2007107214
申请日：2007-04-16
申请人： Art Metal Mfg Co Ltd , Toyota Motor Corp , アート金属工業株式会社 , トヨタ自動車株式会社
发明人： ANDO KIMIHIKO , ITO YOSHIHIKO , KANAI SHOJI
IPC分类号： F02F3/00 , B22F7/06 , C22C38/00 , F16J1/01
摘要： PROBLEM TO BE SOLVED: To provide the piston for internal combustion engine and the method for manufacturing the same characterized in that cracks are hard to occur on an interface between a sintered body on a piston top and a piston base material with the interfacial strength enhanced, and the combustion of a fuel within a combustion chamber is promoted to a great extent as the sintered body is possessed of a lower heat conduction as required.
SOLUTION: The method comprises the steps of: making a first compression-molded body to form a first sintered body 1; making a second compression-molded body to form a second sintered body 2 around the first sintered body 1 so as to make a compression-molded complex body to form a complex sintered body 3; sintering the compression-molded complex body so as to make the complex sintered body 3; and impregnating and solidifying a melted piston base metal into a surface of the second sintered body 2 opposite to its surface facing a combustion chamber, thereby, casting the complex sintered body 3 on a top surface of the piston 10.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供用于内燃机的活塞及其制造方法，其特征在于，在活塞顶部的烧结体和具有界面的活塞基材之间的界面上难以发生裂纹强度提高，燃烧室内的燃料的燃烧在很大程度上得到提高，因为烧结体根据需要具有较低的热传导率。解决方案：该方法包括以下步骤：制备第一压模体以形成第一烧结体1; 制造第二压模体以在第一烧结体1周围形成第二烧结体2，从而形成压缩成型的复合体以形成复合烧结体3; 烧结压模复合体以制成复合烧结体3; 并将熔融的活塞基底金属浸渍并固化到与其面对燃烧室的表面相对的第二烧结体2的表面，从而将复合烧结体3浇铸在活塞10的上表面上。 C）2009，JPO＆INPIT

50. 发明专利

JP2006326666A Mold for gravity casting 审中-公开
标题翻译：模具铸造
公开(公告)号：JP2006326666A
公开(公告)日：2006-12-07
申请号：JP2005156940
申请日：2005-05-30
申请人： Art Metal Mfg Co Ltd , アート金属工業株式会社
发明人： SHUDO KENICHI , TAMURA KAZUYUKI
IPC分类号： B22C9/08
摘要： PROBLEM TO BE SOLVED: To provide a mold for gravity casting with which the occurrence of turbulent flow in a molten metal pouring part is restrained and also, inclusion, bubbles, etc., mixed into molten metal, are reduced and thus, a high quality cast product can be obtained without generating the trouble of setting at every castings, such as in the case of using a ceramic filter and the cost-raising.
SOLUTION: The mold 1 for gravity casting is provided with a molten metal filtering part 7 at the inlet part 6a of the molten metal pouring part 6 in a runner part 4 for pouring the molten metal into a product cavity part 3. The molten metal filtering parts 7 are set as parallel in the upper and lower direction of slit interval 8 extended to the flowing direction of the molten metal into the product cavity part 3 at the narrow width in the vertical direction. The molten metal making to flow in the molten metal pouring part 6 is rectified and the occurrence of the turbulent at the front part of the molten metal pouring part 6 is restrained and also, the inclusion, such as oxide film, bubbles mixed into the molten metal can sufficiently be removed by filtering the molten metal.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决问题的方案为了提供一种用于重力铸造的模具，其中抑制了熔融金属浇注部分中的湍流的发生，并且还包含混入熔融金属中的夹杂物，气泡等，因此，可以获得高质量的铸造产品，而不会在每个铸件产生设置的麻烦，例如在使用陶瓷过滤器和成本提高的情况下。解决方案：用于重力铸造的模具1在熔融金属浇注部分6的入口部分6a处设置有用于将熔融金属注入产品空腔部分3的浇道部分4中的熔融金属过滤部分7。熔融金属过滤部7在沿着垂直方向的窄宽度向熔融金属的流动方向延伸到产品空腔部3的狭缝区间8的上下方向上平行设置。在熔融金属浇注部6中流动的熔融金属被整流，并且抑制了在熔融金属浇注部6的前部发生湍流，并且还包含诸如氧化物膜的气泡混入熔融可以通过过滤熔融金属充分地去除金属。版权所有（C）2007，JPO＆INPIT

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