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1. 发明授权

US12066040B2 Working cylinder with end position damping, and damping piston ring 有权
公开(公告)号：US12066040B2
公开(公告)日：2024-08-20
申请号：US18249412
申请日：2020-10-19
申请人： BÜMACH ENGINEERING INTERNATIONAL B.V. , Josef Bueter
发明人： Josef Bueter
IPC分类号： F15B15/22 , F15B15/14 , F16J9/08 , F16J9/14
CPC分类号： F15B15/224 , F15B15/1452 , F16J9/08 , F16J9/14
摘要： A working cylinder which has end-position damping. A piston ring passes over an axially offset pressure medium connection and encloses a pressure medium damping volume. The piston ring includes a ring joint which has a base section and a projection section. The piston ring is of sealing construction. The pressure medium flows out of the pressure medium damping volume via an axial transfer channel, which can be defined by an axial cylinder-tube groove or an axial piston-ring groove. Also, there is a damping piston ring, which is of sealing construction and which has an axial piston-ring groove.

2. 发明申请

US20220186833A1 SCRAPER RING FOR A PISTON 有权
公开(公告)号：US20220186833A1
公开(公告)日：2022-06-16
申请号：US17247493
申请日：2020-12-14
申请人： Caterpillar Inc.
发明人： Adam Joseph CLUTE
IPC分类号： F16J9/20 , F16J9/14 , F16J9/26
摘要： A scraper ring for a piston includes a top surface, a bottom surface, an inner surface, and an outer surface. The top surface has a first planar portion and a first angled portion. The bottom surface has a second planar portion and a second angled portion. The second angled portion is configured to slidably contact the first angled portion to adjust a diameter of the scraper ring. The inner surface connects the top surface to the bottom surface. The outer surface is opposite to the top surface and is configured to form 360 degrees of contact with a wall of a cylinder to substantially limit an amount of oil entering a combustion chamber of the cylinder.

3. 发明授权

US10982767B2 Piston ring 有权
公开(公告)号：US10982767B2
公开(公告)日：2021-04-20
申请号：US16495106
申请日：2018-01-10
申请人： KABUSHIKI KAISHA RIKEN
发明人： Hiroshi Shimizu , Takayuki Yoguchi , Takayuki Kondo , Masaaki Fujita
IPC分类号： F16J9/14
摘要： A piston ring which is resinous includes an annular main body portion having an inner peripheral surface and an outer peripheral surface facing each other and a pair of side surfaces interconnecting the inner peripheral surface and the outer peripheral surface and a joint portion 3 formed in the main body portion. The joint portion has a step shape when viewed from at least one of the pair of side surfaces and the outer peripheral surface. The outer peripheral surface has a tapered surface having an outer diameter increasing from a side of one side surface of the pair of side surfaces of the main body portion toward a side of the other side surface.

4. 发明授权

US10704507B2 EGR valve including seal ring 有权
公开(公告)号：US10704507B2
公开(公告)日：2020-07-07
申请号：US15752633
申请日：2016-10-11
申请人： DENSO CORPORATION
发明人： Satoshi Ishigaki
IPC分类号： F02M26/70 , F16J15/3272 , F16K1/226 , F16K1/22 , F16J9/14 , F16K31/04 , F16K31/53 , F02M26/67 , F16J9/16 , F16J15/16
摘要： A body of a seal ring is in an annular shape and includes an abutment joint at a location in the circumferential direction. The opposite ends of the body forming the abutment joint include an overlapping part where one end and the other end of the body overlap each other. The overlapping part includes a step cut joint that forms an overlap in the radial direction and a lap joint that forms an overlap in the plate thickness direction. Facing faces that face each other in the plate thickness direction in the lap joint are planes extending from an inner peripheral circular arc of the seal ring up to an outer peripheral circular arc of the seal ring.

5. 发明授权

US10036471B2 Ported engine constructions with low-tension compression seals 有权
公开(公告)号：US10036471B2
公开(公告)日：2018-07-31
申请号：US12592030
申请日：2009-11-18
申请人： James U. Lemke , Bryant A. Wagner
发明人： James U. Lemke , Bryant A. Wagner
IPC分类号： F02F3/00 , F16J9/14 , F02F1/18
CPC分类号： F16J9/14 , F02F1/186
摘要： In ported engine constructions, cooling of piston crowns and cylinder liners results in reduction or elimination of bore/liner distortions, thus ensuring circularity of the bore/piston interface throughout engine operation. Consequently, the need for heavily-tensioned piston rings is eliminated. Such engine constructions incorporate annular low-tension compression seals on the pistons, which substantially reduce port bridge wear during all phases of engine operation while also limiting blow-by during combustion.

6. 发明授权

US09494233B2 Low tension piston rings and method for manufacturing the same 有权
公开(公告)号：US09494233B2
公开(公告)日：2016-11-15
申请号：US15002753
申请日：2016-01-21
申请人： FEDERAL-MOGUL CORPORATION
发明人： Gregory Salenbien , Miguel Azevedo , Matthew Belford
IPC分类号： F16J9/00 , F16J9/02 , B23P15/06 , F16J9/14
CPC分类号： F16J9/02 , B23P15/06 , B23P15/065 , F16J9/14 , Y10T29/49284
摘要： The invention provides a low tension piston ring having a finished outer diameter and negligible tangential tension. The method includes the steps of machining a stock bar to an initial outer diameter slightly greater than the finished outer diameter of the piston ring, finishing the initial outer diameter of the stock bar to a rounded profile having a nominal diameter equal to the finished outer diameter, and machining the stock bar to the preferred cross-section. Dykes-type piston rings can have keystone or semi-keystone shaped cross-sections. The method continues by detaching the piston ring from the stock bar using a parting tool in response to completing all tension inducing operations including the steps recited above. The method continues with the steps of lapping the piston ring to a final longitudinal thickness and cutting the piston ring longitudinally to form a final gap.

7. 发明授权

US08979094B2 Piston ring 有权
标题翻译：活塞环
公开(公告)号：US08979094B2
公开(公告)日：2015-03-17
申请号：US13980994
申请日：2012-01-09
申请人： Peter-Klaus Esser
发明人： Peter-Klaus Esser
IPC分类号： F16J9/00 , F16J9/12 , F16J9/14 , F16J9/26
CPC分类号： F16J9/12 , F16J9/14 , F16J9/26
摘要： A piston ring, in particular a compression piston ring, includes a main body, which has a radially outer running surface, a radially inner circumferential surface, an upper and a lower flank surface, and a joint, wherein the running surface is provided with at least one circumferential recess which receives a wear-resistant coating, in particular a PVD coating, and wherein, starting from respective end faces of the joint, as seen in the circumferential direction of the main body, a land shoulder is integrally formed on the main body outside the coating and extends at a predetermined radial height over a predetermined circumferential length on both sides of the joint.
摘要翻译：活塞环，特别是压缩活塞环，包括主体，其具有径向外侧运行表面，径向内周面，上下侧面和关节，其中，行驶面设置有至少一个圆周凹部，其接收耐磨涂层，特别是PVD涂层，并且其中，从所述接头的各个端面开始，如在主体的周向方向上看到的，台肩一体地形成在主体并且在接头的两侧上以预定的周长延伸预定的径向高度。

8. 发明申请

US20140246835A1 COMPONENT 审中-公开
标题翻译：零件
公开(公告)号：US20140246835A1
公开(公告)日：2014-09-04
申请号：US14237810
申请日：2012-07-20
申请人： Frank Stiehler , Lars Schellhorn
发明人： Frank Stiehler , Lars Schellhorn
IPC分类号： F16J9/14 , F16J15/32 , F16B17/00
CPC分类号： F16J9/14 , F16B17/00 , F16J9/18 , F16J15/32 , F16J15/3272 , Y10T403/7073
摘要： A component is disclosed. The component includes a base body with a first end section and a second end section. The first end section has a first locking protrusion with a first guide surface and a first guide section with a first support surface. The second end section has a second guide section with a second guide surface and a second locking protrusion with a second support surface. The first guide surface is contactable with the second guide surface with respect to a guide plane and the first support surface is contactable with the second support surface with respect to the guide plane such that the first locking protrusion is engageable with the second locking protrusion in a locked position.
摘要翻译：公开了一个组件。该部件包括具有第一端部和第二端部的基体。第一端部具有带有第一引导表面的第一锁定突起和具有第一支撑表面的第一引导部。第二端部具有带有第二引导表面的第二引导部分和具有第二支撑表面的第二锁定突起。第一引导表面可相对于引导平面与第二引导表面接触，并且第一支撑表面可相对于引导平面与第二支撑表面接触，使得第一锁定突起可与第二锁定突起接合锁定位置。

9. 发明授权

US08262091B2 Scarf cut backup rings 有权
标题翻译：围巾切割备份环
公开(公告)号：US08262091B2
公开(公告)日：2012-09-11
申请号：US12201657
申请日：2008-08-29
申请人： Steven Alan Lewis
发明人： Steven Alan Lewis
IPC分类号： F16J9/14 , F16J15/00
CPC分类号： F16J15/166
摘要： A seal assembly is provided for sealing a gap with a high pressure side and a low pressure side between a first component and a second component. The seal assembly can include a primary seal configured to be arranged on the first component and spanning the gap on the high pressure side between the first and second component; and a backup ring configured to be arranged on the first component adjacent the primary seal on the low pressure side. The backup ring includes an inner diameter and a scarf cut slit at an angle that is a function of the inner diameter of the backup ring.
摘要翻译：提供密封组件用于在第一部件和第二部件之间与高压侧和低压侧密封间隙。密封组件可以包括主密封件，其被构造成布置在第一部件上并跨越第一和第二部件之间的高压侧上的间隙; 以及支撑环，其构造成布置在邻近所述低压侧上的所述主密封件的所述第一部件上。支撑环包括内径和围绕切割狭缝的角度，该角度是备用环的内径的函数。

10. 发明授权

US07654536B2 Seal ring 有权
公开(公告)号：US07654536B2
公开(公告)日：2010-02-02
申请号：US10515917
申请日：2003-05-29
申请人： Kyohei Umetsu , Nobuyuki Eguchi
发明人： Kyohei Umetsu , Nobuyuki Eguchi
IPC分类号： F16J9/12 , F16J9/14 , F16J15/00
CPC分类号： F16J9/20 , F16J9/14 , F16J15/441 , F16J15/442
摘要： A seal ring for sealing an annular clearance between two members, which are made rotatable relative to each other. The seal ring is provided with a relief 5 throughout the circumference of a sliding face side to confront the side wall face 72 of an annular groove 71. This relief 5 is set to have a radially smaller width in the vicinity of a separate portion 2 and a radially larger width at a position apart from the separate portion 2, and the portion of the relief 5 to transit from the narrower portion to the wider portion is set to have a gradually changing width.

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