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1. 发明专利

JP2008014223A Piston for internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2008014223A
公开(公告)日：2008-01-24
申请号：JP2006186431
申请日：2006-07-06
申请人： Aisin Seiki Co Ltd , Art Metal Mfg Co Ltd , Teikoku Piston Ring Co Ltd , アート金属工業株式会社 , アイシン精機株式会社 , 帝国ピストンリング株式会社
发明人： HATTORI HIDEKI , SASAKI MANABU , KOMATSU TAKAAKI
IPC分类号： F02F5/00 , F02F3/00 , F16J9/00 , F16J9/14
摘要： PROBLEM TO BE SOLVED: To reduce blow-by gas through the joint clearance of a piston ring for a long period.
SOLUTION: A resin-made heat-resistant elastic member 9 is fixedly provided in a ring groove 3 of a piston 2 so that the resin-made heat-resistant elastic member 9 is placed between a pair of joint end faces 6a and 6b of the piston ring set in the ring groove 3. Further, the resin-made heat-resistant elastic member 9 is preferably inserted and fixed in a stationary groove formed on the surface of the ring groove 3 of the piston 2. Furthermore, the resin-made heat-resistant elastic member 9 is preferably in contact with the inner circumferential surface 1a of the cylinder 1 at least when the engine is started.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过活塞环的连接间隙长时间地减少窜气。解决方案：树脂制耐热弹性构件9固定地设置在活塞2的环槽3中，使得树脂制耐热弹性构件9被放置在一对接头端面6a和设置在环槽3中的活塞环6b。此外，树脂制耐热弹性构件9优选地插入并固定在形成在活塞2的环槽3的表面上的固定槽中。此外，至少在发动机起动时，树脂制耐热性弹性构件9优选与气缸1的内周面1a接触。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008032034A Piston device for internal combustion engine 审中-公开
标题翻译：内燃机活塞装置
公开(公告)号：JP2008032034A
公开(公告)日：2008-02-14
申请号：JP2006202947
申请日：2006-07-26
申请人： Aisin Seiki Co Ltd , Teikoku Piston Ring Co Ltd , Toyota Motor Corp , アイシン精機株式会社 , トヨタ自動車株式会社 , 帝国ピストンリング株式会社
发明人： HATTORI HIDEKI , SASAKI MANABU , MATSUI ATSUSHI
IPC分类号： F16J9/00 , F02F3/00 , F02F5/00 , F16J1/08 , F16J9/20
摘要： PROBLEM TO BE SOLVED: To provide a piston device for internal combustion engines effective for reducing oil consumption and reducing friction.
SOLUTION: Piston rings 6, 7, 8 are fitted into ring grooves 3, 4, 5 formed in the outer peripheral surface of a piston 2 reciprocating in the cylinder 1 of an internal combustion engine 1. A space 12 in which the oil scraped off from the cylinder wall by the second ring 7 is accumulated is formed between a projecting part 11 formed on the lower surface of the second ring 7 and the outer peripheral side end of the second ring groove 4. The second ring 7 is pressed to the outer peripheral side by the hydraulic pressure of the oil accumulated in the space 12. Since the second ring 7 is hydraulically pressed, the tension of the second ring 7 itself is small.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效减少机油消耗并减少摩擦的内燃机的活塞装置。解决方案：将活塞环6,7,8装配在形成在内燃机1的气缸1中往复运动的活塞2的外周面上的环形槽3,4,5中。在该空间12中，在形成在第二环7的下表面上的突出部分11和第二环形槽4的外周侧端部之间形成有由第二环7从气缸壁上刮下的油。第二环7被按压通过积存在空间12中的油的液压压到外周侧。由于第二环7被液压地挤压，所以第二环7本身的张力小。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007263058A Piston for internal combustion engine 审中-公开
标题翻译：内燃机活塞
公开(公告)号：JP2007263058A
公开(公告)日：2007-10-11
申请号：JP2006091533
申请日：2006-03-29
申请人： Aisin Seiki Co Ltd , Art Metal Mfg Co Ltd , アート金属工業株式会社 , アイシン精機株式会社
发明人： SASAKI MANABU , KOMATSU TAKAAKI
IPC分类号： F02F3/00 , F01M1/06 , F16J1/08
摘要： PROBLEM TO BE SOLVED: To provide a piston for an internal combustion engine capable of forming an oil reservoir space positioned in an end part of a pin boss and efficiently supplying oil to a piston pin.
SOLUTION: A whole circumference of an opening end 11a of the pin boss 11 is formed under condition where the same is positioned near the outermost diameter of the piston. The oil reservoir space 14 facing the pin boss 12 is formed in the end part of the pin boss 11. A communication path 16 establishing communication between a ring groove 7 positioned at a piston upper side of the pin boss 11 and the oil reservoir space 14 is provided. The communication path 16 makes oil flow from the ring groove 7 into the oil reservoir space 14.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的活塞，其能够形成位于销凸台的端部中的储油空间并且有效地向活塞销供油。解决方案：销凸台11的开口端11a的整个周边在相同的位置靠近活塞的最外径的状态下形成。在销销凸台11的端部形成有面向销销凸台12的储油空间14.构成位于销销凸台11的活塞上侧的环槽7与储油空间14之间的连通状态的连通路16 被提供。连通路16使油从环槽7流入储油空间14.版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007085201A Method of manufacturing piston for internal combustion engine, and piston for internal combustion engine 审中-公开
标题翻译：用于内燃机的活塞制造方法和内燃机的活塞
公开(公告)号：JP2007085201A
公开(公告)日：2007-04-05
申请号：JP2005272414
申请日：2005-09-20
申请人： Aisin Seiki Co Ltd , Art Metal Mfg Co Ltd , アート金属工業株式会社 , アイシン精機株式会社
发明人： SASAKI MANABU , KOMATSU TAKAAKI
IPC分类号： F02F3/00 , F01P3/10 , F02F3/22 , F16J1/09
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a piston for an internal combustion engine capable of easily positioning a pipe member, reducing materials to be used, and providing a structure with high cooling effect.
SOLUTION: The pipe member 21 cast in a piston comprises a pipe body part 22 and a flange part 23 formed in a flange shape from the radial outer portion of the body part 22. These parts are formed of a same metal material. Next, the pipe member 21 is immersed in an aluminum molten metal with the same composition as the body of the piston 10 to form film on the surfaces of the pipe body part 22 and the flange part 23. The pipe member 21 is placed with the flange part 23 placed on a step part 31b formed on the inner peripheral surface 31a of an outer mold 31 and positioned in a casting mold 30. Then, aluminum molten metal is poured into the casting mold 30 to form a piston intermediate body in which the pipe member 21 is cast, and the outer surface of the piston intermediate body is machined and polished to form the outline of the piston 100.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够容易地定位管构件的内燃机的活塞的制造方法，减少使用的材料，并提供具有高冷却效果的结构。解决方案：铸造在活塞中的管件21包括从主体部分22的径向外部形成为凸缘形状的管体部分22和凸缘部分23.这些部件由相同的金属材料形成。接下来，将管构件21浸入具有与活塞10的主体相同的组成的铝熔融金属中，以在管体部22和凸缘部23的表面上形成膜。管构件21与凸缘部23放置在形成在外模31的内周面31a上且位于铸模30中的台阶部31b上。然后，将铝熔融金属注入铸模30中，形成活塞中间体，管件21被铸造，并且活塞中间体的外表面被加工和抛光以形成活塞100的轮廓。版权所有（C）2007，JPO＆INPIT

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