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1. 发明专利

JP2005299484A Piston for internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：JP2005299484A
公开(公告)日：2005-10-27
申请号：JP2004116126
申请日：2004-04-09
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： SUZUKI TAKAO , TOKORO NORIYUKI , SAITO KOICHI , KOMATSU TAKAAKI
IPC分类号： F02F3/00 , F16J1/04 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To provide a piston for an internal combustion engine capable of restricting deformation thereof by reducing weight of a piston top part and distributing a load to be applied to the piton top part.
SOLUTION: In the piston 1 for an internal combustion engine provided with a pin boss part 5 in the piston top part 2 on a back surface side 2a thereof, a rib 6 is provided to connect the pin boss part and the back surface of the piston top part to each other.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种内燃机的活塞，其能够通过减小活塞顶部的重量并分配要施加到俯仰部的载荷来限制其变形。解决方案：在活塞顶部2的背面侧2a上设置有销凸台部5的内燃机用活塞1中，设置有用于将销凸台部和后表面的活塞顶部彼此。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2003074535A Connecting rod structure 审中-公开
标题翻译：连接结构
公开(公告)号：JP2003074535A
公开(公告)日：2003-03-12
申请号：JP2001261839
申请日：2001-08-30
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： MAEDA YORISHIGE , SUZUKI KOICHI , SUZUKI TAKAO , TOKORO NORIYUKI
IPC分类号： F01M1/06 , F16C7/02
摘要： PROBLEM TO BE SOLVED: To provide a connecting rod structure capable of improving lubrication at a periphery of a piston pin.
SOLUTION: In the connecting rod structure 1 having a small end portion 3 of a connecting rod connected with a piston 9 by arranging first and second end portions 3a and 3b so as to hold a pin boss 10 formed on the piston 9 and by inserting a piston pin 7 into a pin hole 12 arranged in the pin boss 10 and pin holes 5a and 5b respectively arranged in the first and second end portions 3a and 3b in the small end portion 3 of the connecting rod having the first and second end portions 3a and 3b, the connecting rod structure, in which lubricating oil leading means 6a, 6b, 13a, and 13b are arranged on at least one of the first and second end portions 3a and 3b, is provided therein. Lubricating oil is effectively led and supplied to the piston pin 7 by the lubricating oil leading means arranged on the end portions 3a and 3b in the connecting rod, and lubrication in the vicinity of the piston pin is improved.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供能够改善活塞销周边润滑的连杆结构。解决方案：在具有通过布置第一和第二端部3a和3b的连接有活塞9的连杆的小端部3的连杆结构1中，以便保持形成在活塞9上的销凸台10，活塞销7插入设置在销凸起部10中的销孔12和分别布置在具有第一和第二端部3a的连杆的小端部3中的第一和第二端部3a和3b中的销孔5a和5b 在图3b中，在其中设置润滑油引导装置6a，6b，13a和13b设置在第一和第二端部3a和3b中的至少一个上的连杆结构。通过布置在连杆上的端部3a和3b上的润滑油引导装置有效地将润滑油引导并提供给活塞销7，从而提高活塞销附近的润滑。

3. 发明专利

JP2012031815A Piston of internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：JP2012031815A
公开(公告)日：2012-02-16
申请号：JP2010173533
申请日：2010-08-02
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： KOYAMA TAKASHI , TOKORO NORIYUKI , AOYAMA KATSUHIKO , MURAKAMI GENICHI , OKI HISASHI , ARABIKI HIROSHI , TSUKADA ICHIRO
IPC分类号： F02F3/00 , F02F3/22 , F16J1/09
摘要： PROBLEM TO BE SOLVED: To cool an upper part of a piston hole part which is extremely high in temperature in a piston of an internal combustion engine.SOLUTION: The piston of an internal combustion engine includes: a piston body 11; pin hole parts 14A and 14B; and connection parts 13A and 13B connecting the pin holes and the piston body to each other. An outer wall surface 131 of the connection part adjacent to the pin hole part at a position substantially above the pin hole part is formed as a wall surface 132 extending inward and facing substantially upward. A protrusion part 20 is provided in the outer wall surface 131 of the connection part from a region of the connection part near the wall surface facing substantially upward and near the pin hole, extending obliquely upward in a direction separating from the pin hole part.
摘要翻译：要解决的问题：为了冷却内燃机的活塞中的温度极高的活塞孔部的上部。解决方案：内燃机的活塞包括：活塞体11; 销孔部分14A和14B; 以及将销孔和活塞体彼此连接的连接部13A，13B。在大致在销孔部分上方的位置处，与销孔部分相邻的连接部分的外壁表面131形成为向内延伸并面向大致向上的壁表面132。突出部20从连接部的靠近壁面的大致向上且靠近销孔的连接部的区域设置在与销孔部分隔开的方向上向斜上方延伸的突出部20。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012031814A Piston of internal combustion engine, and method of manufacturing the same 审中-公开
标题翻译：内燃机的活塞及其制造方法
公开(公告)号：JP2012031814A
公开(公告)日：2012-02-16
申请号：JP2010173530
申请日：2010-08-02
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： KOYAMA TAKASHI , TOKORO NORIYUKI , AOYAMA KATSUHIKO , MURAKAMI GENICHI , OKI HISASHI , ARABIKI HIROSHI , TSUKADA ICHIRO
IPC分类号： F02F3/00 , F02F3/22 , F16J1/04
CPC分类号： F02F3/02 , F02F3/047 , F02F3/225
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a piston having a skirt part, in which tensile stress to be generated in an upper part of a pin hole becomes higher and fatigue deterioration in the upper part of the pin hole is more accelerated, and additionally, in which a lower part is thicker than an upper part.SOLUTION: The piston of an internal combustion engine includes: a piston body 11; a pair of skirt parts 12A and 12B; a pair of side wall parts 13A and 13B; and pin holes 14A and 14B. The piston includes a hollow formed by a bottom wall surface of the piston body, inner peripheral wall surfaces of both the skirt parts and inner peripheral wall surfaces of both the side wall parts. A protrusion part 20 is provided in the outer wall surface of the side wall parts, extending in a direction from a region of the outer wall surface of the side wall part adjacent to the piston body and the skirt part to a region of the outer wall surface of the side wall part adjacent to a side part of the pin hole part.
摘要翻译：解决问题的方案：提供一种制造具有裙部的活塞的方法，其中在针孔的上部产生的拉伸应力变高，并且销孔的上部的疲劳劣化为更加加速，另外，下部比上部更厚。解决方案：内燃机的活塞包括：活塞体11; 一对裙部12A和12B; 一对侧壁部13A和13B; 和销孔14A和14B。活塞包括由活塞体的底壁表面形成的中空，两个侧壁部分的裙部和内周壁表面的内周壁表面。在侧壁部的外壁面设置有突出部20，该侧壁部从与从活塞体相邻的侧壁部的外壁面的区域和裙部延伸到外壁的区域侧壁部分的与销孔部分的侧部相邻的表面。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010096125A Piston 审中-公开
标题翻译：活塞
公开(公告)号：JP2010096125A
公开(公告)日：2010-04-30
申请号：JP2008268909
申请日：2008-10-17
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： TOKORO NORIYUKI , SUZUKI TAKAO , ARABIKI HIROSHI , YANAGIMACHI MASAHIRO , YAMAKAWA NAOKI , NOGUCHI TAKUYA
IPC分类号： F02F3/00 , F16J1/08 , F16J9/00
摘要： PROBLEM TO BE SOLVED: To inhibit oil introduced into a ring groove of a piston from adhering on a cylinder again, and to reduce oil consumption.
SOLUTION: This piston 1 has: the ring groove 5 on an outer circumference surface part 2; and energizing grooves 9, 10 at least on one of an upper surface 6 or a lower surface 7 of the ring groove 5. The energizing grooves 9, 10 have asymmetry cross section to orient oil introduced into the ring groove 5 to a piston inner circumference side. When the oil is squashed between the ring groove 5 and a piston ring fitted therein, the oil is made to positively flow to the piston inner circumference side by the asymmetry cross section energizing grooves 9, 10. The oil is thereby inhibited from adhering to the cylinder again and oil consumption is reduced.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制引入到活塞的环槽中的油再次粘附在气缸上，并且降低油耗。解决方案：该活塞1具有：外周表面部分2上的环形槽5; 并且在环槽5的上表面6或下表面7中的至少一个上施力槽9,10。通电槽9,10具有不对称的横截面以将导入环槽5的油定向到活塞内周侧。当油被压在环槽5和安装在其间的活塞环之间时，油通过不对称的横截面通电槽9,10积极地流到活塞内周侧。因此，油被阻止粘附到再次油缸，油耗降低。版权所有（C）2010，JPO＆INPIT

6. 发明申请

WO2012017317A9 PISTON OF INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD OF THE PISTON 审中-公开
标题翻译：内燃机活塞和活塞的制造方法
公开(公告)号：WO2012017317A9
公开(公告)日：2012-05-18
申请号：PCT/IB2011002052
申请日：2011-08-02
申请人： TOYOTA MOTOR CO LTD , ART METAL MFG CO LTD , KOYAMA TAKASHI , TOKORO NORIYUKI , AOYAMA KATSUHIKO , MURAKAMI MOTOICHI , OHKI HISASHI , ARABIKI HIROFUMI , TSUKADA ICHIRO
发明人： KOYAMA TAKASHI , TOKORO NORIYUKI , AOYAMA KATSUHIKO , MURAKAMI MOTOICHI , OHKI HISASHI , ARABIKI HIROFUMI , TSUKADA ICHIRO
IPC分类号： F02F3/00 , F02F3/02 , F02F3/04
CPC分类号： F02F3/02 , F02F3/047 , F02F3/225
摘要： The present invention relates to a piston of an internal combustion engine, including a piston body (11), a pair of skirt sections (12A, 12B), a pair of side wall sections (13A, 13B), and pin hole sections (14A, 14B), and a cavity is formed by the bottom wall surface of the piston body, inner peripheral wall surfaces of the skirt sections, and inner wall surfaces of the side wall sections. In the present invention, a bulge section (20) that extends in a direction form a region of an outer wall surface of a side wall section adjacent to the piston body and a skirt section (AR1) toward a region of the outer wall surface of the side wall section adjacent to a lateral part of a pin hole section (AR3) is provided in the outer wall surface of the side wall section.
摘要翻译：本发明涉及一种内燃机的活塞，其包括活塞体（11），一对裙部（12A，12B），一对侧壁部（13A，13B）和销孔部（14A ，14B），并且由活塞体的底壁面，裙部的内周壁面和侧壁部的内壁面形成空腔。在本发明中，在与活塞体相邻的侧壁部的外壁面的区域形成有朝向外壁面的区域延伸的凸部（20）在侧壁部的外壁面设置与销孔部（AR3）的侧部相邻的侧壁部。

7. 发明专利

JP2000310106A LUBRICATING STRUCTURE FOR PISTON AND CONNECTING ROD AND PISTON FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000310106A
公开(公告)日：2000-11-07
申请号：JP12199899
申请日：1999-04-28
申请人： TOYOTA MOTOR CORP , ART METAL MFG CO LTD
发明人： SUZUKI TAKAO , TOKORO NORIYUKI , ARISAWA HIROSHI , OKOCHI YUKIO , FUJIWARA KIYOSHI , MAEDA YORISHIGE , SUZUKI KOICHI
IPC分类号： F01M1/06 , F02F3/00
摘要： PROBLEM TO BE SOLVED: To reuse oil lubricating a piston and a connecting rod for lubrication of the piston and the connecting rod. SOLUTION: By forming a pin boss 2 provided with a pin hole 3 on a piston 1, branching a piston side tip part 5 of a connecting rod 4 and arranging the parts 5 on both sides of the pin boss 2, forming pin holes 6 at the piston side tip parts 5, inserting a piston pin 7 into the piston hole 3 of the piston 1 and the pin holes 6 of the piston side tip parts 5 and forming a recessed part 9 for oil reservoir in a part which is a fork part 8 of the branched piston side tip parts 5 and is located on lower sides of the piston boss 2 and the piston pin 7, oil lubricating the piston 1 and the connecting rod 4 can be prevented from passing the fork part 8 and falling. Oil within the recessed part 9 for oil reservoir is sprung up at the time of raising the piston 1 and is used again for lubrication of the piston 1 and the connecting rod 4.

8. 发明专利

JP2009228483A Piston of internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2009228483A
公开(公告)日：2009-10-08
申请号：JP2008072124
申请日：2008-03-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SUZUKI TAKAO , TOKORO NORIYUKI , ARABIKI HIROSHI
IPC分类号： F02F3/00 , F16J1/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight piston for an internal-combustion engine having excellent durability, and capable of heightening the rigidity and enhancing the cooling effect.
SOLUTION: The piston 1A of the internal combustion engine is equipped with a head 2A, a first and a second pin bosses 3, 4 provided in the lower part of the head 2A, first side walls 5A provided on both sides of the first pin boss 3, and second side walls 6A provided on both sides of the second pin boss 4, and has a side wall structure wherein the first and second side walls 5A, 6A are coupled together by inclining them inward as going apart from the head 2A. In this side wall structure, the head 2A and the first and second side walls 5A and 6A constitute a cavity 7A.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的耐久性的能够提高刚性和提高冷却效果的用于内燃机的轻型活塞。解决方案：内燃机的活塞1A配备有头部2A，设置在头部2A的下部的第一和第二销凸起3,4，设置在头部2A的两侧的第一侧壁5A，第一销凸台3和设置在第二销凸台4的两侧的第二侧壁6A，并且具有侧壁结构，其中第一和第二侧壁5A，6A通过向内倾斜而与头部分离而相互联接在一起 2A。在该侧壁结构中，头部2A和第一和第二侧壁5A和6A构成空腔7A。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2008190357A Piston 审中-公开
标题翻译：活塞
公开(公告)号：JP2008190357A
公开(公告)日：2008-08-21
申请号：JP2007023045
申请日：2007-02-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOKORO NORIYUKI
IPC分类号： F02F3/00 , F02F3/26 , F16J1/04 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To solve a problem of a conventional piston that stress concentration occurs in a boundary part between a skirt part and a side wall part, and there is a possibility to have damage such as a crack depending on the degree of the load.
SOLUTION: The piston is provided with a pair of the side wall parts 16 having a pin boss 14 and a piston pin attachment hole 15 opened respectively, a pair of the skirt parts 17 confronting with each other while having the piston boss 14 therebetween and having a circumferential end connected to the pair of the side wall parts 16, and a stress dispersion part formed in a connection region 18 of the side wall part 16 and the skirt part 17. The stress dispersion part may include an extended part 19 formed on the pair of the side wall pars 16 on a connection end side with the skirt part 17, and protruded to be extended from the skirt part 17, and has a base end formed at least on a terminal side of the connection region 18 positioned on a head part 13 side.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题为了解决在裙部和侧壁部之间的边界部分发生应力集中的常规活塞的问题，并且存在根据程度的破裂等破坏的可能性的负载。解决方案：活塞设置有一对侧壁部分16，其具有分别敞开的销凸起14和活塞销安装孔15，一对裙部17彼此面对，同时具有活塞凸台14 并且具有连接到一对侧壁部16的周向端部，以及形成在侧壁部16和裙部17的连接区域18中的应力分散部。应力分散部可以包括延伸部19 形成在与侧裙部17的连接端侧上的一对侧壁配件16上，并从裙部17伸出，并且至少在连接区域18的端子侧形成有基端在头部13侧。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007077975A Internal combustion engine 审中-公开
标题翻译：内燃机
公开(公告)号：JP2007077975A
公开(公告)日：2007-03-29
申请号：JP2005321590
申请日：2005-11-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OKAWA SATOSHI , TOKORO NORIYUKI , MIYAUCHI AKIHIRO , IWATA HIROYUKI , HAYATA RUI
IPC分类号： F02F1/00 , F02F11/00
摘要： PROBLEM TO BE SOLVED: To improve sealing performance between a cylinder block and a cylinder head while improving the efficiency of transmitting the axial force of a head bolt to an inner wall forming a cylinder. SOLUTION: This engine 1 comprises a cylinder block 2 which has the inner wall 7 forming the cylinder 6 and an outer wall 8 provided around the inner wall 7 across a water jacket groove 9, which has a plurality of bolt holes 10 into which head bolts 5 are screwed to fix the cylinder head 3 to the outer wall 8, and which has a top deck face 2a opposed to the cylinder head 3 where the outer wall 8 and the inner wall 7 are separated from each other via the water jacket groove 9. In the cylinder block 2, a recessed portion 12 is provided which is recessed from the top deck face 2a and which has bottom faces 7a, 8a spreading over the inner wall 7 and the outer wall 8, respectively, across the water jacket groove 9. Spacers 4 are held between the cylinder head 2 and the bottom faces 7a, 8a of the recessed portion 12 to contact the inner wall 7 and the outer wall 8, respectively. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提高气缸体与气缸盖之间的密封性能，同时提高将头螺栓的轴向力传递到形成气缸的内壁的效率。解决方案：该发动机1包括具有形成气缸6的内壁7的气缸体2和跨过水套槽9设置在内壁7周围的外壁8，该外壁9具有多个螺栓孔10，头螺栓5被拧紧以将气缸盖3固定到外壁8，并且具有与气缸盖3相对的顶板面2a，其中外壁8和内壁7经由水彼此分离夹套槽9.在气缸体2中，设置有从顶板面2a凹陷的凹部12，并且具有分别穿过内壁7和外壁8的底面7a，8a分别穿过水夹套槽9.间隔件4保持在气缸盖2和凹部12的底面7a，8a之间，分别接触内壁7和外壁8。版权所有（C）2007，JPO＆INPIT

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