公开(公告)号：US20160169151A1

公开(公告)日：2016-06-16

申请号：US14966210

申请日：2015-12-11

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Atsushi KUNIYASU ,  Takuya NIIMI ,  Akihiro OKAMOTO ,  Ryo OKAZAKI ,  Takayuki HAYASHI

IPC分类号： F02F3/10 ,  B23K26/364 ,  F02F3/00

CPC分类号： F02F3/10 ,  B23K26/364 ,  B23K2101/003 ,  F02F3/00 ,  F16J1/08

摘要： A piston for an internal combustion engine includes a piston main body for the internal combustion engine, and a crosshatched groove being formed on a surface of the piston main body. The crosshatched groove includes a crosshatch angle that corresponds to a crossing angle of lines that configure a crosshatch, the crosshatch angle that is set at a range from equal to or greater than 15 degrees to equal to or less than 35 degrees.

摘要翻译： 内燃机的活塞包括内燃机的活塞主体和在活塞主体的表面上形成的交叉阴影线槽。 交叉阴影线槽包括对应于构成交叉阴影线的线的交叉角的交叉影线角，设置在等于或大于15度至等于或小于35度的范围的交叉影线角。

公开(公告)号：US20160017997A1

公开(公告)日：2016-01-21

申请号：US14333948

申请日：2014-07-17

申请人： Danfoss Power Solutions Inc.

发明人： Jaromir Tvaruzek ,  Vince Ewald ,  Michael J. Romey ,  Charlie Dvorak

IPC分类号： F16J1/08 ,  F16J9/26

CPC分类号： F16J1/08 ,  F15B15/1452 ,  F16J9/26

摘要： A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.

摘要翻译： 伺服活塞具有带有第一端和第二端的细长构件。 第二端具有设置在伺服活塞孔内的伺服活塞头。 伺服活塞头具有围绕伺服活塞头的外边缘设置的至少两个凹槽。 最后一个密封环被接纳在每个槽内。 在至少两个槽中使用环可减少侧向/横向振动和伺服孔负载。 同时，两个槽之间的空间在伺服活塞头和伺服活塞孔之间产生加压油挤压膜，由环密封，同时提供密封和阻尼功能。

公开(公告)号：US09200708B2

公开(公告)日：2015-12-01

申请号：US13776769

申请日：2013-02-26

申请人： Caterpillar Inc.

发明人： Dinesh Desai ,  Chris Buckley ,  Brian Sybrandy

IPC分类号： F16J1/00 ,  F16J1/08

CPC分类号： F16J1/005 ,  F16J1/08 ,  Y10T29/49256

摘要： An apparatus and method for coupling a piston to a rod to form a cylinder assembly are provided. The piston has a tapped bore extending therethrough for coupling to a first threaded region of the rod. The rod end extends beyond the piston member and includes a second threaded region for coupling to a tapped bore of a retaining member. The piston member is coupled to the rod member at a low torque, e.g., up to about 1000 Nm. An external thread of each of the threaded segment of the piston bore and the first threaded region of the first portion of the rod member may be formed with a root radius of greater than 0.125 pitch or with MJ class thread. The retaining member may include setscrews offset from one another for frictional engagement with the rod end. The thread pitch between the rod and the piston may be coarser than between the rod and the retaining member. An interface and a seal region between the rod and the piston may be disposed closer to the rod end side of the piston member than the threaded coupling.

摘要翻译： 提供了一种用于将活塞联接到杆以形成气缸组件的装置和方法。 活塞具有穿过其延伸的螺纹孔，用于联接到杆的第一螺纹区域。 杆端延伸超过活塞构件并且包括用于联接到保持构件的螺纹孔的第二螺纹区域。 活塞构件以低扭矩（例如高达约1000Nm）联接到杆构件。 活塞孔的每个螺纹段的外螺纹和杆构件的第一部分的第一螺纹区域可以形成为具有大于0.125节距的根半径或与MJ级螺纹形成。 保持构件可以包括彼此偏置的固定螺丝，用于与杆端部摩擦接合。 杆和活塞之间的螺距可以比杆和保持构件之间的螺距更粗。 杆和活塞之间的界面和密封区域可以比螺纹联接件更靠近活塞构件的杆端侧设置。

公开(公告)号：US09157349B2

公开(公告)日：2015-10-13

申请号：US14336850

申请日：2014-07-21

申请人： Ali Farzad Farzaneh ,  Abdolreza Darabi

发明人： Ali Farzad Farzaneh ,  Abdolreza Darabi

IPC分类号： F01M11/08 ,  F16J1/08 ,  F02B75/02 ,  F02B75/12 ,  F02M31/02 ,  F01M9/00 ,  F01M1/12

CPC分类号： F01M11/08 ,  F01M1/12 ,  F01M9/06 ,  F01M2011/022 ,  F02B75/02 ,  F02B2075/025 ,  F02B2075/125 ,  F02M31/16 ,  F16J1/08 ,  Y02T10/123 ,  Y02T10/126

摘要： An internal combustion engine of the two-cycle type comprises a cylinder and a combustion chamber defined by a piston slidable within the cylinder and a cylinder head. A fuel injection mechanism for injecting fuel into the combustion chamber is provided. A crankshaft provides reciprocating motion to the piston. Lubricating mechanism provides lubrication to the crankshaft. A mechanism around the bottom of the piston prevents crankshaft lubrication from reaching the combustion chamber. A valve prevents escape of oil from air and smoke openings. Oil is not mixed with the fuel in the combustion chamber. Heating mechanism is provided for heating the fuel prior to the fuel being injected into the combustion chamber. A command control for controlling timely opening and closing of the smoke and air valves, the spark plugs and the injector is provided. Contrary to cycle engines which have no valve it has two electric valve.

摘要翻译： 两循环型的内燃机包括由在气缸内滑动的活塞和气缸盖限定的气缸和燃烧室。 提供了用于将燃料喷射到燃烧室中的燃料喷射机构。 曲轴向活塞提供往复运动。 润滑机构为曲轴提供润滑。 围绕活塞底部的机构防止曲轴润滑到达燃烧室。 阀门防止油从空气和烟雾中排出。 油不与燃烧室中的燃料混合。 提供加热机构用于在燃料被喷入燃烧室之前加热燃料。 提供用于及时打开和关闭烟气和空气阀，火花塞和喷射器的指令控制。 与没有阀的循环发动机相反，它具有两个电动阀。

公开(公告)号：US08960072B2

公开(公告)日：2015-02-24

申请号：US13017689

申请日：2011-01-31

申请人： Kenji Suto ,  Kota Tokubi ,  Tomonori Saito ,  Yoshimi Kuroda

发明人： Kenji Suto ,  Kota Tokubi ,  Tomonori Saito ,  Yoshimi Kuroda

IPC分类号： F16J1/08 ,  F16J1/01

CPC分类号： F16J1/01 ,  F16J1/08 ,  Y10T29/49263 ,  Y10T428/12569 ,  Y10T428/24983

摘要： A multilayer lubrication coating film is formed on the outer surface of an object to be coated. The multilayer lubrication coating film comprises a lower-layer coating film formed on an outer surface of the object to be coated, and an upper-layer coating film formed on a surface of the lower-layer coating film. The lower-layer coating film has a higher Vickers hardness than the Vickers hardness of the object to be coated.

摘要翻译： 在待涂覆物体的外表面上形成多层润滑涂膜。 多层润滑涂膜包括形成在待涂覆物体的外表面上的下层涂膜和形成在下层涂膜的表面上的上层涂膜。 下层涂膜的维氏硬度比被涂物的维氏硬度高。

公开(公告)号：US20150047498A1

公开(公告)日：2015-02-19

申请号：US14368844

申请日：2012-07-31

申请人： Ryotaro Takada ,  Yositaka Tsujii

发明人： Ryotaro Takada ,  Yositaka Tsujii

IPC分类号： F02F3/00 ,  F02F3/10

CPC分类号： F02F3/0084 ,  F02F3/10 ,  F05C2201/0421 ,  F05C2201/0475 ,  F05C2201/90 ,  F05C2203/0808 ,  F05C2203/0813 ,  F05C2203/0817 ,  F05C2203/0821 ,  F05C2203/0839 ,  F05C2203/086 ,  F05C2251/14 ,  F05C2253/12 ,  F16J1/01 ,  F16J1/04 ,  F16J1/08

摘要： A piston that moves reciprocally in the cylinder of an internal combustion engine and has a piston skirt that makes sliding contact with the inner wall of the cylinder. Solid lubrication parts are provided on the sliding-contact surface of the piston skirt. The solid lubrication parts include at least one type of silver, silver alloy, copper, or copper alloy, and at least one type of carbon material or carbide ceramics.

摘要翻译： 活塞，其在内燃机的气缸中往复移动并具有与汽缸的内壁滑动接触的活塞裙部。 固体润滑部件设置在活塞裙的滑动接触表面上。 固体润滑部件包括至少一种类型的银，银合金，铜或铜合金，以及至少一种类型的碳材料或碳化物陶瓷。

公开(公告)号：US08919319B2

公开(公告)日：2014-12-30

申请号：US13635182

申请日：2011-03-16

申请人： Ryotaro Takada ,  Mayumi Saruyama ,  Yositaka Tsujii

发明人： Ryotaro Takada ,  Mayumi Saruyama ,  Yositaka Tsujii

IPC分类号： F02F3/00 ,  F16J1/01 ,  F16J1/04 ,  F16J1/08

CPC分类号： F16J1/01 ,  F16J1/04 ,  F16J1/08

摘要： Provided is an aluminum alloy piston for an internal combustion engine. In the internal combustion engine, the piston moves back and forth in a sleeve made of grey cast iron or an aluminum alloy. Further, the piston, which is made from silver, silver alloy, copper, or copper alloy, is provided with a film that covers the scoring that is formed on the piston skirt and there are undulations in the surface of the film, formed from protrusions and depressions. There is a difference of 8-15 μm between the lowest point of the depressions and the highest point of the protrusions. The pitch of adjacent protrusions corresponds to the pitch of projections in the scoring. In addition, the arithmetic average roughness (Ra) of the protrusion peaks does not exceed 60 nm.

摘要翻译： 提供一种用于内燃机的铝合金活塞。 在内燃机中，活塞在由灰口铸铁或铝合金制成的套筒中来回移动。 此外，由银，银合金，铜或铜合金制成的活塞设置有覆盖形成在活塞裙部上的刻痕的膜，并且在膜的表面中起凸起，由突起 和凹陷。 在凹陷的最低点和突起的最高点之间存在8-15μm的差异。 相邻突起的间距对应于刻痕中的突起的间距。 此外，突出峰的算术平均粗糙度（Ra）不超过60nm。

公开(公告)号：US20140345454A1

公开(公告)日：2014-11-27

申请号：US13676719

申请日：2012-11-14

申请人： Montgomery L. Wilder

发明人： Montgomery L. Wilder

IPC分类号： F02F3/22 ,  B23P15/10 ,  F02F3/00

CPC分类号： F02F3/22 ,  B23P15/10 ,  F02F3/0015 ,  F02F3/003 ,  F02F3/105 ,  F02F3/18 ,  F02F2200/00 ,  F16J1/006 ,  F16J1/08 ,  Y10T29/49252

摘要： A piston assembly and method of making the same are disclosed. An exemplary piston assembly may include a multi-piece skirt secured to a piston crown having a ring belt portion defining a cooling gallery. The crown may include one or more a struts extending away from the ring belt portion to define a wrist pin bore(s). The piston skirt assembly may include two separate portions that each have at least one skirt support securing the respective skirt portion to the strut. A cover plate may be provided that is secured between a radially inner surface of the ring belt portion of the crown and a radially outer surface of the strut, such that the cover plate defines in part the cooling gallery.

摘要翻译： 公开了一种活塞组件及其制造方法。 示例性活塞组件可以包括固定到活塞冠的多件式裙部，其具有限定冷却库的环形带部分。 冠部可以包括一个或多个从环形带部分延伸的支柱，以限定腕针孔。 活塞裙组件可以包括两个分开的部分，每个部分具有将相应的裙部固定到支柱的至少一个裙部支撑件。 可以设置盖板，其固定在冠部的环带部分的径向内表面和支柱的径向外表面之间，使得盖板部分地限定冷却库。

公开(公告)号：US20140230646A1

公开(公告)日：2014-08-21

申请号：US13769751

申请日：2013-02-18

申请人： FEDERAL-MOGUL CORPORATION

发明人： Norbert G. Schneider

IPC分类号： F16J1/08

CPC分类号： F02F3/285 ,  B21K1/185 ,  F02F3/003 ,  F02F3/22 ,  F02F3/26 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/0448 ,  F16J1/08 ,  Y10T29/49249

摘要： A steel piston with an oil gallery, and process for forming a steel piston oil gallery channel, which corresponds to the complex shape of the combustion bowl in the piston crown. The oil gallery channel is first forged to the basic shape that corresponds to the shape of the walls of the combustion bowl. Machine-turning surfaces in the oil gallery channel can be machine-finished as desired. Surfaces in the oil gallery which cannot be machined with conventional turning operations, such as recesses and protrusions into the channel, are left in the original forged condition.

摘要翻译： 具有油画廊的钢活塞，以及用于形成钢活塞油道通道的工艺，其对应于活塞冠中燃烧碗的复杂形状。 油画廊通道首先被锻造成对应于燃烧碗壁的形状的基本形状。 油画廊通道中的机械转动表面可根据需要进行机加工。 不能用传统的转动操作（例如通道中的凹陷和突起）加工的油田中的表面留在原始的锻造状态。

公开(公告)号：US08539927B2

公开(公告)日：2013-09-24

申请号：US13434700

申请日：2012-03-29

申请人： Qingmin Yang ,  Andrew Miller ,  Frank Zlamal

发明人： Qingmin Yang ,  Andrew Miller ,  Frank Zlamal

IPC分类号： F02F3/00

CPC分类号： F16J1/16 ,  F16C7/023 ,  F16C9/04 ,  F16J1/08 ,  Y10T29/49249 ,  Y10T29/49266 ,  Y10T29/49288 ,  Y10T74/2142 ,  Y10T74/2162 ,  Y10T74/2173

摘要： A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein.

摘要翻译： 提供了一种手腕销及其构件之间的磨损降低的方法，活塞，连杆及其构造方法。 腕针具有在构造成用于容纳在活塞销孔中的相对端部之间延伸的第一部分和在构造成用于容纳在销孔中的相对端之间延伸的第二部分。 第二部分被配置为与第一部分相对移动。 活塞包括具有轴向对齐的销孔的活塞体，其中至少一个销孔具有防止腕销构件相对旋转的特征。 连杆包括具有小端孔的连杆主体。 小端孔具有允许第一腕针构件相对旋转的轮廓，并且具有防止第二腕针构件在其中的相对旋转的特征。