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1. 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

2. 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

3. 发明专利

JP2010038048A Piston of internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2010038048A
公开(公告)日：2010-02-18
申请号：JP2008202546
申请日：2008-08-06
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 , ARABIKI HIROSHI , SAKAI TSUTOMU , YANAGIMACHI MASAHIRO
IPC分类号： F02F3/00 , F16J1/02 , F16J1/04 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To provide a lightweight piston of an internal combustion engine capable of maintaining an attitude as much as possible when reciprocating.
SOLUTION: A first sidewall 5 to a fourth sidewall 8 extend along a virtual surface F including the axis 21 of a piston pin 20 and being a surface with a surface extending in a thrust direction and an anti-thrust direction supposed. The first sidewall 5 and a third sidewall 7 are connected to each other, and the connecting part thereof forms a first skirt 9. A second sidewall 6 and a fourth sidewall 8 are connected to each other, and a connecting part thereof forms a second skirt 10. Each of the first skirt 9 and the second skirt 10 has a surface composed of a cylindrical surface formed by approximately the same diameter as the outside diameter of a piston top 2 and made to slidably contact with the bore of the internal combustion engine during the operation of the engine.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够在往复运动时尽可能保持姿态的内燃机的轻型活塞。解决方案：第一侧壁5至第四侧壁8沿着包括活塞销20的轴线21的虚拟表面F延伸，并且是具有沿推力方向延伸的表面和反推力方向的表面。第一侧壁5和第三侧壁7彼此连接，并且其连接部分形成第一裙部9.第二侧壁6和第四侧壁8彼此连接，并且其连接部分形成第二裙部第一裙部9和第二裙部10中的每一个具有由与活塞顶部2的外径大致相同的直径形成的圆柱形表面的表面，并且在与内部发动机的孔内滑动接触的过程中发动机的运行。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009228823A Connection structure of piston and connecting rod 审中-公开
标题翻译：活塞连接结构与连接
公开(公告)号：JP2009228823A
公开(公告)日：2009-10-08
申请号：JP2008075872
申请日：2008-03-24
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： F16J1/16 , F02F3/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight connection structure of a piston and a connecting rod, having durability.
SOLUTION: This connection structure 1 of the piston sand the connecting rod is formed by connecting the piston 2 and the connecting rod 4 via a piston pin 3, by integrally forming a single boss 21 for journaling the piston pin 3 in the lower center of the piston 2, and is constituted so that the piston pin 3 includes a hollow part 31 and a cutout part 32 formed in the axial direction of the piston pin 3 from one end of the piston pin 3, and a small end part 41 of the connecting rod 4 storably formed in the hollow part 31 is installed in the hollow part 31 via the cutout part 32. This connection structure 1 of the piston and the connection rod is also constituted by installing a piece 5 for filling the cutout part 3 after installing the small end part 41 in the hollow part 31.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有耐久性的活塞和连杆的轻质连接结构。
解决方案：活塞砂的连接结构1通过活塞销3连接活塞2和连杆4而形成，通过整体地形成单个凸台21，以将活塞销3缩小到下部活塞2的中心部，并且构成为活塞销3包括从活塞销3的一端沿活塞销3的轴向形成的中空部31和切口部32，小端部41 存储在中空部31中的连接杆4经由切口部32安装在中空部31中。活塞和连接杆的连接结构体1也通过安装用于填充切口部3的部件5而构成将小端部41安装在中空部31之后。版权所有（C）2010，JPO＆INPIT

5. 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

6. 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

7. 发明专利

JP2011220267A Piston for internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2011220267A
公开(公告)日：2011-11-04
申请号：JP2010091617
申请日：2010-04-12
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： MURAKAMI GENICHI , KOYAMAISHI NAOTO , ARABIKI HIROSHI , OZAKI TAISAKU
IPC分类号： F02F3/00 , F16J1/08
摘要： PROBLEM TO BE SOLVED: To provide a piston capable of securing a broad sliding area when it is being reciprocated within the cylinder of an internal combustion engine.SOLUTION: A striation 18 having a cross-sectional arcuate projection 20 is formed on the outer peripheral surface 16 in the piston for internal combustion engine, wherein the curvature radius of the end 20a of the projection 20 in the cross-section of the projection 20 of the striation 18 is larger than that of the depth of a groove 22 in the cross-section of the groove 22 in the striation 18.

8. 发明专利

JP2010156212A Cylinder head cover heat-retaining device 审中-公开
标题翻译：气缸盖保温装置
公开(公告)号：JP2010156212A
公开(公告)日：2010-07-15
申请号：JP2008333571
申请日：2008-12-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ARABIKI HIROSHI
IPC分类号： F02F7/00 , B62D25/10 , F02B77/00 , F02B77/11
摘要： PROBLEM TO BE SOLVED: To solve the problem that a power supply such as a battery is required for retaining the heat of a cylinder head cover of an engine, and it is substantially impossible to retain the heat of the cylinder head cover when stopping the engine over a long period. SOLUTION: This cylinder head cover heat-retaining device includes a bimetal 18 joined at one end to an inner panel 11b of an engine hood 11 and adapted to be expanded along the opposite direction to the cylinder head cover 14 depending on a temperature, a plate-like heat transfer member 17 joined to the other end of the bimetal 18 and adapted to be changed over into either the condition of contacting or non-contacting the surface of the cylinder head cover 14 with the expanding operation of the bimetal 18, and a second heat transfer member 19 joined at one end face to the plate-like heat transfer member 17 and at the other end face to the inner panel 11b of the engine hood 11, and deformable with the expanding operation of the bimetal 18. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了解决为了保持发动机的气缸盖罩的热量而需要诸如电池的电源的问题，并且基本上不可能保持气缸盖罩盖的热量长时间停止发动机。解决方案：该气缸盖罩保温装置包括一端连接到发动机罩11的内板11b上的双金属片18，并且适于沿着与气缸盖罩14相反的方向膨胀，这取决于温度，连接到双金属片18的另一端的板状传热构件17，并适于改变为气缸盖罩14的表面与双金属片18的伸展操作接触或不接触的状态以及在一个端面处连接到板状传热构件17并且在另一端面处连接到发动机罩11的内板11b并且随着双金属片18的膨胀操作而变形的第二传热构件19。版权所有（C）2010，JPO＆INPIT

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