公开(公告)号：US20160312739A1

公开(公告)日：2016-10-27

申请号：US15134470

申请日：2016-04-21

申请人： KUBOTA Corporation

发明人： Hiroki OSO ,  Hideyuki KOYAMA ,  Manabu MIYAZAKI ,  Hideyuki GOTO ,  Takahito HAMASAKI ,  Takahiro YAMAZAKI

IPC分类号： F02F3/10 ,  F02F3/00

CPC分类号： F02F3/10 ,  F02F3/00 ,  F02F3/0084 ,  F02F3/027 ,  F05C2253/12 ,  F05C2253/20 ,  F16J1/02 ,  F16J1/08

摘要： A piston for an engine includes a skirt part, and a resin coating film and a recess formed on a surface of the skirt part. A plurality of the resin coating films are discretely arranged in spots on the surface of the skirt part, and a mesh-like groove is formed by the recess provided between the resin coating films. The recess formed on the skirt part between the resin coating films adjacent to each other in a piston circumference direction is set to be adjacent to another resin coating film in a piston moving direction. An end part of the resin coating film in the piston moving direction is formed in a concave shape when seen in a piston radius direction.

摘要翻译： 用于发动机的活塞包括裙部，树脂涂膜和形成在裙部的表面上的凹部。 多个树脂涂膜在裙部的表面上离散地布置成点状，并且通过设置在树脂涂膜之间的凹部形成网状凹槽。 在活塞周向彼此相邻的树脂涂膜之间的裙部上形成的凹部被设定为与活塞移动方向上的另一树脂涂膜相邻。 当在活塞半径方向上观察时，活塞移动方向上的树脂涂膜的端部形成为凹形。

公开(公告)号：US20150034043A1

公开(公告)日：2015-02-05

申请号：US13954392

申请日：2013-07-30

申请人： KUBOTA Corporation

发明人： Hiroki KUWAYAMA ,  Takahiro YAMAZAKI ,  Yutaka ISHIGAKI ,  Hideyuki KOYAMA ,  Manabu MIYAZAKI ,  Katsunori IKEMACHI ,  Yoshinori TANAKA

IPC分类号： F02B19/14

CPC分类号： F02B19/12 ,  F02B17/005 ,  F02B19/10 ,  F02B19/1009 ,  F02B19/14 ,  F02B19/18 ,  Y02T10/125

摘要： A subchamber type combustion chamber for a diesel engine, which reduces fuel consumption rate and combustion noise. To achieve the object, a subchamber type combustion chamber is communicated with a main combustion chamber through a nozzle hole, a fuel injection nozzle faces into the subchamber, and a glow plug extends into the subchamber. A heat generating portion of the glow plug includes a rod-shaped portion and a projecting portion projecting from an end of the rod-shaped portion. The projecting portion is provided with a convex curved surface projecting from a circular peripheral edge at the end of the rod-shaped portion while the convex curved surface is reduced in diameter. The percentage of value P/D obtained by dividing projection dimension P of the projecting portion from the end of the rod-shaped portion by diameter dimension D at the end of the rod-shaped portion is 3% to 23%.

摘要翻译： 用于柴油发动机的子舱型燃烧室，其降低燃料消耗率和燃烧噪声。 为了达到上述目的，一个小室型燃烧室通过喷嘴孔与主燃烧室连通，燃料喷嘴面向子室，电热塞延伸到子房中。 电热塞的发热部包括棒状部和从棒状部的端部突出的突出部。 突出部设置有从弯曲部的端部的圆周方向突出的凸曲面，而凸曲面的直径减小。 通过将棒状部分的端部的突出部分的突出尺寸P除以在杆状部分的端部处的直径尺寸D获得的值P / D的百分比为3％至23％。

公开(公告)号：US20140174061A1

公开(公告)日：2014-06-26

申请号：US14108464

申请日：2013-12-17

申请人： KUBOTA Corporation

发明人： Mitsugu OKUDA ,  Yoshikazu TAKEMOTO ,  Takashi ONISHI ,  Hozumi ISHIDA ,  Manabu MIYAZAKI ,  Yuichi TAMAKI ,  Tomoya AKITOMO ,  Katsuaki ARAI

IPC分类号： F01N3/10

CPC分类号： F01N3/10 ,  F01N3/0256 ,  F01N3/323 ,  F01N3/36

摘要： An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage.

摘要翻译： 一种用于包括可燃气体供应通道的发动机的排气处理装置; 在所述排气通路的上游侧从所述氧化催化剂和所述可燃性气体供给路径的下游侧开口的排气口，所述排气通路和所述可燃性气体供给路径通过所述散热口相互连通; 位于放热口下方的点火装置，由点火装置点燃的可燃气体的燃烧热量供给到排气通道，以提高排气通道中的排气温度; 来自点火装置的可燃性气体供给路径的下游侧的火焰保持板，在火焰保持板的顶部的排气引导板，排气引导板朝向排气通路的下游侧具有向上的倾斜。

公开(公告)号：US20130207350A1

公开(公告)日：2013-08-15

申请号：US13760296

申请日：2013-02-06

申请人： KUBOTA Corporation

发明人： Hiroki KUWAYAMA ,  Takahiro YAMAZAKI ,  Yutaka ISHIGAKI ,  Hideyuki KOYAMA ,  Manabu MIYAZAKI ,  Yoshinori TANAKA ,  Keita NAITO ,  Hidetaka MORINAGA

IPC分类号： F02F5/00

CPC分类号： F02F5/00 ,  F16J1/09 ,  F16J9/00 ,  F16J9/22

摘要： An engine in which an oil consumption and a leakage of blow-by gas can be stably reduced for a long period of time. The engine includes a first land (3), a first ring groove (4), a second land (5), a second ring groove (6), a third land (7), a third ring groove (8), and a piston skirt (9) formed on a piston peripheral wall (1) in the above-recited order from a side of a piston head (2). A first pressure ring (10) is fitted in the first ring groove (4). A second pressure ring (11) is fitted in the second ring groove (6), an oil ring (12) fitted in the third ring groove (8), and an indentation (13) is formed at the second land (5).

摘要翻译： 可以长时间稳定地降低油耗和窜气泄漏的发动机。 发动机包括第一平台（3），第一环槽（4），第二凸台（5），第二环槽（6），第三凸台（7），第三环槽（8）和 从活塞头（2）的一侧按照上述顺序形成在活塞周壁（1）上的活塞裙（9）。 第一压力环（10）装配在第一环形槽（4）中。 第二压力环（11）装配在第二环槽（6）中，装配在第三环槽（8）中的油环（12）和凹陷（13）形成在第二焊盘（5）处。