公开(公告)号：US10316869B2

公开(公告)日：2019-06-11

申请号：US15559821

申请日：2016-03-07

申请人： KYB Corporation

发明人： Takuya Kubota ,  Daisuke Sueyoshi

IPC分类号： F01B31/10 ,  F15B15/14

摘要： A single-acting hydraulic cylinder includes a cylinder head provided in the opening of the cylinder tube to allow the piston rod to be inserted, a bushing provided on an inner circumference of the cylinder head to slidably support the piston rod, and a housing recessed portion formed on the inner circumference of the cylinder head to receive the bushing forcibly inserted from the inlet portion. A bottom clearance filled with the grease is formed between the bottom face of the housing recessed portion and the bushing.

公开(公告)号：US10247177B2

公开(公告)日：2019-04-02

申请号：US15207889

申请日：2016-07-12

申请人： Purdue Research Foundation

发明人： Monika Marianne Ivantysynova ,  Meike H. Ernst

IPC分类号： F01B31/10 ,  F04B1/20 ,  F04B53/18 ,  F01B3/00 ,  F04B39/02 ,  F04B27/08 ,  F04B53/16 ,  F03C1/32 ,  F04B1/14

摘要： Positive displacement machines and methods therefor capable of increasing a load-carrying capacity of a piston-cylinder lubrication interface of positive displacement machines having a cylinder block, a cylindrical bore defined in the cylinder block, a piston reciprocably disposed within the cylindrical bore, and a working fluid within the piston-cylinder lubrication interface to provide a load-bearing function between the piston and the bore wall of the cylinder bore. The method includes providing at least one circumferential groove on a bore wall of the cylindrical bore within the piston-cylinder lubrication interface having an opening facing the piston and that is in fluidic communication with the piston-cylinder lubrication interface so as to contain a portion of the working fluid, and operating the positive displacement machine such that the working fluid enters the cylindrical groove and promotes hydrostatic balancing of pressure of the working fluid within the piston-cylinder lubrication interface.

公开(公告)号：US09657728B2

公开(公告)日：2017-05-23

申请号：US14783841

申请日：2014-04-04

申请人： NTN CORPORATION

发明人： Akihiro Oomori

IPC分类号： F01B31/10 ,  F04B27/08 ,  F04B27/10

CPC分类号： F04B27/0886 ,  F04B27/0891 ,  F04B27/1054 ,  F05C2251/14

摘要： It is an object of the present invention to provide a semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at the start time of an operation, does not deteriorate in its lubricating property owing to frictional heating, and ensures sufficient durability and a swash plate compressor in which a lubricating film is not formed on a sliding contact surface of a swash plate owing to the use of the semispherical shoe. A semispherical shoe (4) makes sliding contact with the swash plate of the swash plate compressor. A surface of a planar part (4b) which makes sliding contact with the swash plate consists of a resin layer (10). A surface of a spherical part (4b) consists of a base material of the semispherical shoe. In viewing the surface of the planar part divided into three parts consisting of a central part (10a), an outer edge part (10c), and an intermediate part (10b) interposed between the central part (10a) and the outer edge part (10c) in a direction vertical to the surface of the planar part, an annular belt portion (10d) whose layer thickness is larger than that of each of the central part (10a) and the outer edge part (10c) is formed inside the intermediate part (10a).

公开(公告)号：US08967037B2

公开(公告)日：2015-03-03

申请号：US13306140

申请日：2011-11-29

申请人： Christopher Robert Jones ,  Stephen Robert Lewis ,  Sana Mahmood ,  Eric L. Rogers

发明人： Christopher Robert Jones ,  Stephen Robert Lewis ,  Sana Mahmood ,  Eric L. Rogers

IPC分类号： F16J1/10 ,  F01B31/10

CPC分类号： F01L1/14 ,  F01L2105/02 ,  F01L2810/02 ,  F02M59/102 ,  F02M2200/02

摘要： A common rail fuel pump includes a cam shaft with at least one cam rotatably supported in a pump housing. A plurality of tappet assemblies are each reciprocatingly movable in the pump housing, and include an axle pin mounted in a tappet, and a roller mounted in contact for rotation about the axle pin. Each end of the roller includes a plurality of non-contiguous planar thrust surfaces separated by lubrication grooves. A lubrication pathway for the roller includes in sequence a lubrication passage that opens to a roller bearing surface, movement along the roller bearing surface into the lubrication grooves, and then between the planar thrust surface of the roller and a counterpart thrust face of the tappet responsive to rotation of the roller on the cam shaft.

摘要翻译： 共轨燃料泵包括凸轮轴，凸轮轴具有可旋转地支撑在泵壳体中的至少一个凸轮。 多个挺杆组件都可在泵壳体中往复运动，并且包括安装在挺杆中的轴销以及安装在接触件上以绕轴销旋转的滚子。 辊的每个端部包括由润滑槽分隔开的多个不连续的平面推力面。 用于辊的润滑路径依次包括一个向滚子轴承表面开放的润滑通道，沿着滚子轴承表面运动到润滑槽中，然后在辊的平面推力表面和挺杆的对应推力面之间响应 以使辊子在凸轮轴上旋转。

公开(公告)号：US20120210867A1

公开(公告)日：2012-08-23

申请号：US13031445

申请日：2011-02-21

申请人： Richard Rateick ,  William Scott Rowan ,  Larry Portolese

发明人： Richard Rateick ,  William Scott Rowan ,  Larry Portolese

IPC分类号： F01B31/10

CPC分类号： F04B1/124 ,  F04B27/109 ,  F04B53/18

摘要： Methods and apparatus are provided for lubricating a piston-to-shoe interface in a hydraulic motor or pump. Piston assemblies are installed in a housing that are each adapted to receive a reciprocating drive force and are each configured, in response thereto, to cyclically move between an intake direction and a discharge direction. Each piston assembly includes a piston and a piston shoe, and the piston, the piston shoe, or both have a plurality of pockets formed in a surface that defines a piston-to-shoe interface. When the pistons cyclically move, liquid is supplied to each piston-to-shoe interface to form a hydrostatic bearing at each piston-to-shoe interface. A portion of the liquid that is supplied to each piston-to-shoe interface is selectively supplied to and from one or more of the plurality of pockets.

摘要翻译： 提供了用于在液压马达或泵中润滑活塞与鞋接口的方法和装置。 活塞组件安装在壳体中，每个壳体适于接收往复驱动力，并且响应于此，构件在进气方向和排出方向之间循环移动。 每个活塞组件包括一个活塞和一个活塞靴，而活塞，活塞靴或两者都具有形成在限定活塞与鞋子界面的表面中的多个袋。 当活塞循环移动时，液体被供应到每个活塞到鞋的界面，以在每个活塞到鞋的界面处形成静压轴承。 供应到每个活塞到鞋接口的液体的一部分被选择性地供应到多个袋中的一个或多个袋。

公开(公告)号：US20110154982A1

公开(公告)日：2011-06-30

申请号：US13003985

申请日：2009-07-15

申请人： Fernando Antonio Ribas Junior ,  Mateus Magnabosco

发明人： Fernando Antonio Ribas Junior ,  Mateus Magnabosco

IPC分类号： F01B31/10

CPC分类号： F04B39/023 ,  F04B39/121

摘要： A refrigeration compressor includes an internal cooling system. The compressor includes a compressor shell (1), inside of which are disposed a compression cylinder (2, 3), a piston that performs an alternating movement inside the cylinder, an oil accumulation region (5) in the lower part of the compressor shell, and piston drive means having a rotary shaft (4) oriented substantially vertically, with an upper end mounted to a piston drive cam (7). The compressor has a system for collecting the oil coming from the shaft (4), and expelled by the cam (7), in the upper part of the shell (1). This accumulated oil is drained over the compression cylinder (2, 3), so as to cool it, thus increasing the efficiency of the compressor.

摘要翻译： 制冷压缩机包括内部冷却系统。 压缩机包括压缩机壳体（1），其内部设置有压缩气缸（2,3），在气缸内进行交替运动的活塞，在压缩机壳体的下部的油积存区域（5） 以及活塞驱动装置，其具有基本垂直定向的旋转轴（4），其上端安装到活塞驱动凸轮（7）。 压缩机具有用于收集来自轴（4）的油的系统，并且在壳体（1）的上部由凸轮（7）排出。 该积存的油被排出压缩气缸（2,3），以使其冷却，从而提高压缩机的效率。

公开(公告)号：US07954421B2

公开(公告)日：2011-06-07

申请号：US12065421

申请日：2006-08-26

申请人： Ralf Buschbeck ,  Johannes Sperman ,  Albert Haberl ,  Klaus Lormes

发明人： Ralf Buschbeck ,  Johannes Sperman ,  Albert Haberl ,  Klaus Lormes

IPC分类号： F16J1/04 ,  F01B31/10

CPC分类号： F02F3/0076 ,  F01M2011/025

摘要： A piston has a piston head that is provided with a field of rings and a piston shaft which is disposed thereupon. The piston shaft is equipped with supporting shaft wall sections and rear connecting walls which interconnect the shaft wall sections, have an arched shape, and are fitted with a bolt bore. An undercut free space is provided below the annular field in the area of the bolt bore in the region of the piston head. An arched zone is disposed in the interior of the piston at the transition from the bolt bore in the direction of the shaft wall session.

摘要翻译： 活塞具有设置有环的场的活塞头和设置在其上的活塞轴。 活塞轴配备有支撑轴壁部分和后连接壁，其连接轴壁部分，具有拱形形状并且装配有螺栓孔。 在活塞头的区域内的螺栓孔的区域中的环形场的下方设置有切削自由空间。 拱形区域设置在活塞的内部中，从螺栓孔沿轴壁方向转过。

公开(公告)号：US07721642B2

公开(公告)日：2010-05-25

申请号：US12021673

申请日：2008-01-29

申请人： Takahiro Sugioka ,  Takayuki Kato ,  Shuichi Yasuda ,  Atsushi Saito ,  Masahiro Suzuki ,  Hitotoshi Murase ,  Takashi Iseki ,  Hideo Tachikawa ,  Kazuyuki Nakanishi ,  Takao Kobayashi ,  Ken-ichi Suzuki

发明人： Takahiro Sugioka ,  Takayuki Kato ,  Shuichi Yasuda ,  Atsushi Saito ,  Masahiro Suzuki ,  Hitotoshi Murase ,  Takashi Iseki ,  Hideo Tachikawa ,  Kazuyuki Nakanishi ,  Takao Kobayashi ,  Ken-ichi Suzuki

IPC分类号： F01B31/10

CPC分类号： F04B27/1054 ,  F05C2203/0817 ,  F05C2203/0882 ,  F05C2225/00 ,  F05C2251/14 ,  F05C2253/12 ,  F16C33/201

摘要： To provide a sliding member that exhibits excellent durability and is free of lead. A swash plate for a compressor as the sliding member of the invention contains a base material having on the surface thereof a sliding layer constituting at least a sliding surface, on which shoes slide. The sliding layer contains a first layer that contains an amorphous hard carbon (diamond-like carbon) film containing Si (DLC-Si film) and is formed on the base material, and a second layer that is formed on the first layer and contains polyamideimide (PAI) containing a solid lubricant such as MoS2.

摘要翻译： 提供具有优异耐久性且不含铅的滑动构件。 作为本发明的滑动构件的压缩机的斜盘包含基材，其表面上具有至少构成滑动面的滑动层，滑块滑动。 滑动层含有含有Si（DLC-Si膜）的无定形硬碳（类金刚石碳）薄膜并形成在基材上的第一层，第二层形成在第一层上并含有聚酰胺酰亚胺 （PAI），其包含固体润滑剂如MoS2。

公开(公告)号：US07490541B2

公开(公告)日：2009-02-17

申请号：US10482170

申请日：2002-07-03

申请人： Takeshi Kawata ,  Kenji Watanabe ,  Kenji Okuzono ,  Nobunao Tsuchida

发明人： Takeshi Kawata ,  Kenji Watanabe ,  Kenji Okuzono ,  Nobunao Tsuchida

IPC分类号： F01B31/10

CPC分类号： F04C29/026 ,  F01C21/10

摘要： A compressor comprises a compressing mechanism which compresses fluid including a lubricant, a separation chamber into which the fluid compressed by the compressing mechanism is introduced and in which at least a portion of the lubricant included in the fluid is separated from the fluid, and an oil-storage chamber in which the lubricant separated from the fluid in the separation chamber is stored. An oil-introducing passage is formed between the separation chamber and the oil-storage chamber to bring these chambers into communication with each other, the oil-introducing passage introduces the lubricant separated in the separation chamber into the oil-storage chamber, an opening of the oil-introducing passage on the side of the oil-storage chamber is lower than an oil level of the lubricant stored in the oil-storage chamber in the vertical direction.

摘要翻译： 压缩机包括压缩机构，其压缩包括润滑剂的流体，分离室，由压缩机构压缩的流体被引入到该分离室中，其中包含在流体中的润滑剂的至少一部分与流体分离， 其中存储有与分离室中的流体分离的润滑剂的储存室。 在分离室和储油室之间形成有油引入通道，使这些室相互连通，导油通路将分离室中分离的润滑剂引入储油室， 储油室一侧的导油通路低于储存在储油室中的润滑油在垂直方向上的油位。

公开(公告)号：US07451737B2

公开(公告)日：2008-11-18

申请号：US11001194

申请日：2004-12-01

申请人： Matthias Songen

发明人： Matthias Songen

IPC分类号： F01B31/10 ,  F02B75/32

CPC分类号： F16J1/22 ,  F02F3/0023 ,  Y10T74/2142

摘要： A powertrain for an internal combustion engine having a connecting rod with a piston supported at one end which is adapted for easy assembly and disassembly without expensive tools. The piston is supported on the connecting rod by a universal joint defined by a spherical surface of an integral connecting rod end and an end plate of the piston having a correspondingly configured spherical recess. The connecting rod end is formed with flat surfaces on opposed sides for engagement by releasable securement members which maintain the piston in proper seated position on the connecting rod during normal usage, but which are releasable to permit removal of the piston upon rotation of the connecting rod 90° about its longitudinal axis.

摘要翻译： 一种用于内燃机的动力系，其具有连杆，活塞支撑在一端，该活塞适于在没有昂贵的工具的情况下容易地组装和拆卸。 活塞通过万向接头支撑在连杆上，该万向节由一体连杆端的球形表面和活塞的端板限定，该端板具有相应配置的球形凹槽。 连杆端部在相对侧上形成有平坦表面，用于通过可释放的固定构件进行接合，该固定构件在正常使用期间将活塞保持在连接杆上的适当就位位置，但是可释放以允许在连杆旋转时移除活塞 围绕其纵向轴线90°。