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1. 发明专利

JP2011080436A Piston 有权
标题翻译：活塞
公开(公告)号：JP2011080436A
公开(公告)日：2011-04-21
申请号：JP2009234526
申请日：2009-10-08
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MITA SHUZO , INAGAKI HIDETO , KATSUMI NORIKAZU , NOZAWA MIGI , KUROISHI SHINKATSU , KONDO YASUHIRO , MAGAI TOMOSHI , SAKURAGI TAKESHI , MURAKAMI GENICHI , KOYAMAISHI NAOTO
IPC分类号： F02F3/00 , F16J1/04
摘要： PROBLEM TO BE SOLVED: To further reduce a frictional force of a piston in a cylinder piston mechanism. SOLUTION: A skirt portion 18 of a piston 14 has a cross-sectional shape profile within a plane perpendicular to an axial direction being substantially the same along the axial direction. The cross-sectional shape profile includes: a central region having a predetermined central ellipticity defined beforehand, in a range of a predefined central region length B in a portion in a thrust direction and anti-thrust direction relative to a cylinder bore 12; both side regions having a both sides portion ellipticity larger than central ellipticity, in ranges of both sides of the central regions; and a connection region in which the central region and the both side regions are connected, a clearance with an inner diameter of a cylinder bore 12 has a central connection portion clearance defined beforehand in a connection point with the central region, a clearance from the inner diameter of the cylinder bore 12 has a both sides connection portion clearance C1 defined beforehand in a connection point with the both side regions. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：进一步降低气缸活塞机构中的活塞的摩擦力。解决方案：活塞14的裙部18在垂直于轴向方向的平面内具有沿轴向基本上相同的横截面形状轮廓。横截面形状轮廓包括：在预定中心区域长度B的推力方向上的部分和相对于气缸孔12的抗推力方向的预定中心椭圆率的中心区域; 在两个中央区域的两侧的范围内具有比中心椭圆率大的椭圆率的两侧部分的两侧部分区域; 以及连接中心区域和两侧区域的连接区域，具有缸孔12的内径的间隙具有与中心区域连接点预先限定的中心连接部空隙，与内侧的间隙气缸孔12的直径具有预先在与两侧区域的连接点中限定的两侧连接部分间隙C1。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010007652A Piston ring and internal combustion engine 审中-公开
标题翻译：活塞环和内燃机
公开(公告)号：JP2010007652A
公开(公告)日：2010-01-14
申请号：JP2008171681
申请日：2008-06-30
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMADA TOMOHISA , MITA SHUZO , INAGAKI HIDETO , KATSUMI NORIKAZU , SHIMURA YOSHIO
IPC分类号： F02F5/00 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To provide a piston ring capable of suppressing the friction with a piston under the condition using lubricating oil, and to provide an internal combustion engine having the piston ring and capable of ensuring the required sealability. SOLUTION: The piston ring 10 for an internal combustion engine is used under the condition using lubricating oil L, and has an oil sump groove 54 being the surface treatment for promoting formation of an oil film at least on a lower surface 10A being an end face on the side opposite to a combustion chamber side. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在使用润滑油的条件下能够抑制与活塞的摩擦的活塞环，并且提供具有活塞环并能够确保所需的密封性的内燃机。解决方案：用于内燃机的活塞环10在使用润滑油L的条件下使用，并且具有用于促进至少在下表面10A上形成油膜的表面处理的油底壳槽54 与燃烧室侧相反的一侧的端面。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2017082626A レシプロ式エンジン审中-公开
公开(公告)号：JP2017082626A
公开(公告)日：2017-05-18
申请号：JP2015210060
申请日：2015-10-26
申请人：株式会社豊田中央研究所 , Toyota Central R&D Labs Inc
发明人： IKEDA TARO , INAGAKI HIDETO
IPC分类号： F01P3/02 , F02F1/00 , F02F11/00 , F16J10/00 , F16J15/12
摘要：【課題】燃焼室内の温度をより適切にコントロールできるレシプロ式エンジンを提供する。【解決手段】本発明のエンジンは、1以上のシリンダが設けられたシリンダブロック12と、前記シリンダブロック12に連結されるシリンダヘッド14と、前記シリンダ20内を進退可能なピストンであって、周面にピストンリングが取り付けられたピストンと、前記シリンダブロック12と前記シリンダヘッド14との間に介在する中間体18であって、内周面が燃焼室内に露出するボア孔36が1以上設けられた中間体18と、を備え、前記中間体18は、前記シリンダ20内を気密にシールする一対のガスケットと、前記ガスケットよりも肉厚で前記一対のガスケットの間に介在するスペーサと、含み、前記スペーサには、燃焼室を調温するための調温媒体が流れるスペーサ内流路54が設けられている。【選択図】図1

4. 发明专利

JP2009121311A Piston for internal combustion engine and internal combustion engine 审中-公开
标题翻译：内燃机和内燃机的活塞
公开(公告)号：JP2009121311A
公开(公告)日：2009-06-04
申请号：JP2007295350
申请日：2007-11-14
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： INAGAKI HIDETO , NOZAWA MIGI , SHIMURA YOSHIO
IPC分类号： F02F3/00 , F16J1/00 , F16J9/00 , F16J9/20 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To suppress temperature rise of a top face of a piston and to reduce friction loss at a piston skirt portion.
SOLUTION: An oil ring groove 23 is formed between a piston head portion 14 and the piston skirt portion 16 at an outer circumferential part of the piston, and a slit hole 24 opening to the oil ring groove 23 is formed along the circumferential direction of the piston between the piston head portion 14 and the piston skirt portion 16. In the oil ring groove 23, a heat transfer ring 36 is attached as a component discrete from piston rings, which transfers heat from the piston head portion 14 to the piston skirt portion 16, by pressing its surfaces against both of a side face 23b on the piston head portion 14 side and a side face 23c on the piston skirt portion 16 side inside the oil ring groove 23.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：抑制活塞顶面的温度升高并减少活塞裙部的摩擦损失。解决方案：在活塞的外周部分的活塞头部分14和活塞裙部16之间形成一个油环槽23，沿着圆周方向形成一个通向油环槽23的狭缝孔24 活塞头部14和活塞裙部16之间的活塞的方向。在油环槽23中，传热环36作为与从活塞头部14传递热量的活塞环离散的部件附接到活塞裙部16通过将其表面压靠在活塞头部14侧的侧面23b和油环槽23内的活塞裙部16侧的侧面23c上。（C） 2009年，JPO＆INPIT

5. 发明专利

JP2014098473A Pressure ring mounted piston 审中-公开
标题翻译：压力环安装活塞
公开(公告)号：JP2014098473A
公开(公告)日：2014-05-29
申请号：JP2012251958
申请日：2012-11-16
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所 , Toyota Industries Corp , 株式会社豊田自動織機
发明人： INAGAKI HIDETO , YAMADA TOMOHISA , MITA SHUZO , NOZAWA MIGI , YAMASHITA KENTARO
IPC分类号： F16J9/20 , F02F3/00 , F02F5/00 , F16J9/00 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To make a second pressure ring of a pressure ring mounted piston easily separate away from a ring groove face to reduce oil consumption.SOLUTION: A pressure ring mounted piston 18 includes a top ring 34 which is a first pressure ring provided in a first ring groove 40 to be movable in a piston movement direction, and a second ring 36 which is a second pressure ring provided in a second ring groove 42 to be movable in the piston movement direction. A second end face of the second ring 36 is an end face of one side in an axial direction and faces to a crank chamber, and an opposite formation face is a ring groove face of the second ring groove 42 facing to the second end face. The opposite formation face has a convex or concave portion greater than the maximum depth of the surface roughness of the opposite formation face.
摘要翻译：要解决的问题：为了使压力环安装的活塞的第二压力环容易地与环槽面分离，以减少油耗。解决方案：压力环安装的活塞18包括顶环34，其是提供的第一压力环在能够沿活塞运动方向移动的第一环形槽40中，以及设置在第二环形槽42中的第二压力环的第二环36，以能够沿活塞运动方向移动。第二环36的第二端面是轴向一侧的端面并且面向曲轴室，相对的形成面是第二环形槽42的面向第二端面的环形槽面。相对的形成面具有大于相对形成面的表面粗糙度的最大深度的凸部或凹部。

6. 发明专利

JP2014098471A Pressure ring mounted piston 审中-公开
标题翻译：压力环安装活塞
公开(公告)号：JP2014098471A
公开(公告)日：2014-05-29
申请号：JP2012251945
申请日：2012-11-16
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所 , Tpr Co Ltd , Tpr株式会社
发明人： INAGAKI HIDETO , KATSUMI NORIKAZU , YAMADA TOMOHISA , KAWAI KIYOYUKI
IPC分类号： F16J9/00 , F02F3/00 , F02F5/00 , F16J1/08 , F16J9/20
摘要： PROBLEM TO BE SOLVED: To make a first pressure ring of a pressure ring mounted piston easily separate away from a ring groove face to reduce oil consumption.SOLUTION: A pressure ring mounted piston 18 includes a top ring 34 which is a first pressure ring provided in a first ring groove 40 to be movable in a piston movement direction, and a second ring 36 which is a second pressure ring provided in a second ring groove 42 to be movable in the piston movement direction. A first end face of the top ring 34 is an end face of one side in an axial direction and faces to a combustion chamber, and an opposite formation face is a ring groove face of the first ring groove 40 facing to the first end face. The opposite formation face has a convex or concave portion greater than the maximum depth of the surface roughness of the opposite formation face.
摘要翻译：要解决的问题：为了使压力环安装的活塞的第一压力环容易地与环槽面分离，以减少油消耗。解决方案：压力环安装的活塞18包括顶环34，其是提供的第一压力环在能够沿活塞运动方向移动的第一环形槽40中，以及设置在第二环形槽42中的第二压力环的第二环36，以能够沿活塞运动方向移动。顶环34的第一端面是轴向一侧的端面，面向燃烧室，相反的形成面是与第一端面相对的第一环槽40的环形槽面。相对的形成面具有大于相对形成面的表面粗糙度的最大深度的凸部或凹部。

7. 发明专利

JP2010229858A Piston, piston ring, and reciprocating device 审中-公开
标题翻译：活塞，活塞环和复合装置
公开(公告)号：JP2010229858A
公开(公告)日：2010-10-14
申请号：JP2009076764
申请日：2009-03-26
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： YAMADA TOMOHISA , MITA SHUZO , INAGAKI HIDETO , KATSUMI NORIKAZU , NOZAWA MIGI , NODA TAKU
IPC分类号： F02F3/00 , F02F5/00 , F16J1/08 , F16J9/00
摘要： PROBLEM TO BE SOLVED: To provide a piston capable of suppressing a lubricant from being discharged from a ring groove by a simple structure, a piston ring, and a reciprocating device equipped with at least either of the piston or the piston ring, and reducing the amount of the consumption of the lubricant.
SOLUTION: In the piston 10, three ring grooves 50 opened to an outer peripheral side and to which the piston rings 30, 32, 33 are independently installed, and an oil collecting groove 52 opened to a part on a crown face 10A side in each ring groove 50 are formed.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够通过简单的结构，能够抑制润滑剂从环槽排出的活塞，活塞环和配备有活塞或活塞环中的至少一个的往复运动装置，并减少润滑剂的消耗量。解决方案：在活塞10中，向外周侧开放并且活塞环30,32,33独立地安装的三个环形槽50和向冠面10A上的部分开口的集油槽52 形成每个环形槽50中的一侧。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2009138562A Piston for internal combustion engine and internal combustion engine 有权
标题翻译：内燃机和内燃机的活塞
公开(公告)号：JP2009138562A
公开(公告)日：2009-06-25
申请号：JP2007313725
申请日：2007-12-04
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： INAGAKI HIDETO , SHIMURA YOSHIO
IPC分类号： F02F3/00 , F16J1/04 , F16J1/16
摘要： PROBLEM TO BE SOLVED: To reduce a friction loss at a piston skirt without causing an increase in the complexity of a piston structure, vibration, and noise. SOLUTION: A skirt towing section 42 is connected to a piston pin boss 18-1 through a sidewall 44-1 at its one end 42a connected to a piston pin boss 18-2 through a sidewall 44-2 at its other end 42b, and connected to the piston skirt 16 through a connecting section 45 at its central section 42c, and moreover, it has a shape bent to the piston skirt 16 side between one end 42a and the other end 42b. The skirt towing section 42 is configured to be displaced inwardly in the radial direction of the piston according to the displacement of the piston pin bosses 18-1, 18-2 in a direction separating from each other, thereby towing the piston skirt 16 to the inside in the radial direction of the piston. The curvature of the skirt towing section 42 is varied from that of the piston skirt 16. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了减少活塞裙部处的摩擦损失而不引起活塞结构的复杂性，振动和噪声的增加。解决方案：裙部拖曳部分42通过侧壁44-1连接到活塞销凸起18-1，其一端42a通过其另一端的侧壁44-2连接到活塞销凸起18-2 42b，并且通过其中心部分42c处的连接部分45连接到活塞裙部16，并且其具有向一端42a和另一端42b之间的活塞裙边16侧弯曲的形状。裙部牵引部42被构造成根据活塞销凸起部18-1,18-2在彼此分离的方向上的位移沿活塞的径向向内移位，从而将活塞裙部16拖动到在活塞的径向内侧。裙部牵引部分42的曲率与活塞裙部16的曲率不同。版权所有：（C）2009，JPO＆INPIT

9. 发明专利

JP2009074394A Internal combustion engine 审中-公开
标题翻译：内燃机
公开(公告)号：JP2009074394A
公开(公告)日：2009-04-09
申请号：JP2007242592
申请日：2007-09-19
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： INAGAKI HIDETO , KONDO TERUAKI , MORIYA KOJI , TOKORO HIROJI
IPC分类号： F01M9/10
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine capable of inhibiting formation of particulate matter.
SOLUTION: A gasoline engine 10 is provided with a crank chamber lubrication system 82 for supplying a lubricated section in a crank chamber 22 with lubricating oil and a cylinder head lubrication system 84 for supplying a valve system 58 in a cylinder head 40 which does not communicate with the crank chamber 22. Lubricating oil of the cylinder head lubrication system 84 is lubricating oil not containing a calcium system additive.
COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2014101893A Pressure ring attachment piston 审中-公开
标题翻译：压力连接活塞
公开(公告)号：JP2014101893A
公开(公告)日：2014-06-05
申请号：JP2012252017
申请日：2012-11-16
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： INAGAKI HIDETO , YAMADA TOMOHISA , KATSUMI NORIKAZU , NOZAWA MIGI
IPC分类号： F16J9/00 , F02F3/00 , F02F5/00
摘要： PROBLEM TO BE SOLVED: To reduce oil consumption by easily separating a pressure ring from a ring groove surface in a pressure ring attachment piston.SOLUTION: A pressure ring attachment piston 18 comprises: a top ring 34 as a first pressure ring arranged to be movable in a piston movement direction in a first ring groove 40; and a second ring 36 as a second pressure ring arranged to be movable in the piston movement direction in a second ring groove 42. At least one of a first end surface in an axial direction of the top ring 34, a first ring groove surface of the first ring groove 40 opposed to the first end surface, a second end surface in the axial direction of the second ring 36, and a second ring groove surface of the second ring groove 42 opposed to the second end surface is an oppositely formed surface, and the oppositely formed surface has a recession or a protrusion in a dimension larger than the maximum depth of the surface roughness.
摘要翻译：要解决的问题：通过在压力环安装活塞中容易地将压力环与环槽表面分离来减少油耗。解决方案：压力环附接活塞18包括：作为第一压力环的顶环34，其布置成可移动在第一环槽40中的活塞移动方向上; 以及作为第二压力环的第二环36，其布置成在第二环形槽42中沿活塞运动方向可移动。顶环34的轴向的第一端面中的至少一个，第一环表面与第一端面相对的第一环形槽40，第二环36的轴向的第二端面和与第二端面相对的第二环形槽42的第二环状槽表面是相对形成的表面，并且相对形成的表面具有比表面粗糙度的最大深度大的尺寸的凹陷或突起。

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