公开(公告)号：US12078122B2

公开(公告)日：2024-09-03

申请号：US17969629

申请日：2022-10-19

Applicant: AI ALPINE US BIDCO INC

Inventor： Richard John Donahue ,  James Richard Zurlo

IPC: F02F3/24 ,  F02F3/00 ,  F02F3/02 ,  F16J1/00 ,  F16J9/22

CPC classification number: F02F3/24 ,  F16J1/00 ,  F16J1/001 ,  F16J9/22 ,  F02F3/00 ,  F02F3/02

Abstract: A power cylinder system for a reciprocating engine includes a piston configured to move within a cylinder of the reciprocating engine. The system also includes a groove extending circumferentially about the piston and configured to support a ring. An axially-facing surface of the groove has circumferential undulations at ambient temperatures that are configured to compensate for distortions to the groove caused by operation of the reciprocating engine.

公开(公告)号：US11655818B2

公开(公告)日：2023-05-23

申请号：US16883323

申请日：2020-05-26

Applicant: Emerson Climate Technologies, Inc.

Inventor： James A. Schaefer ,  Sumit R. Gadre ,  Yogesh S. Mahure

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C18/00 ,  F04C27/00 ,  F16J9/22 ,  F04C2/02 ,  F04C18/02 ,  F04C15/00 ,  F04C23/00

CPC classification number: F04C27/008 ,  F04C2/025 ,  F04C18/0215 ,  F04C27/007 ,  F16J9/22 ,  F04C15/0015 ,  F04C23/008 ,  F04C2210/26 ,  F04C2210/261 ,  F05B2240/57

Abstract: A compressor may include a shell, first and second scroll members, a floating seal, a muffler plate, and a wear ring. The shell defines a discharge chamber and a suction chamber. The floating seal may sealingly engage the second scroll member. The muffler plate defines the discharge chamber and the suction chamber. The wear ring may sealingly engage the muffler plate and the floating seal such that the wear ring, the muffler plate, and the floating seal fluidly isolate the discharge chamber from the suction chamber. The muffler plate may include an axially facing surface that contacts the wear ring. The axially facing surface may include an annular recess. The wear ring may at least partially cover the annular recess. The annular recess may provide clearance between the muffler plate and the wear ring to allow the wear ring to deflect relative to the muffler plate during compressor operation.

公开(公告)号：US10094472B2

公开(公告)日：2018-10-09

申请号：US14741717

申请日：2015-06-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Bruce R. Schroder

IPC: F16J1/09 ,  F16J9/08 ,  F16J9/20 ,  F16J9/22 ,  F15B15/14 ,  B23P15/10 ,  F16J9/12

Abstract: A piston configuration is provided, the configuration including a piston having a ring seat and a piston ring disposed within the ring seat. The piston ring is configured to form a sealing surface between a surface of the piston ring and a surface of the ring seat. The sealing surface is formed when a first pressure on a first side of the piston ring is greater than a second pressure on a second side of the piston ring. At least one fluid channel is configured to increase a surface area on the piston ring that is subject to the second pressure.

公开(公告)号：US09920836B2

公开(公告)日：2018-03-20

申请号：US15030123

申请日：2014-10-16

Applicant: KABUSHIKI KAISHA RIKEN

Inventor： Hayato Sasaki ,  Takashi Ono ,  Yongtie Yan

IPC: F16J9/26 ,  F16J9/22 ,  F16J9/28

CPC classification number: F16J9/22 ,  F16J9/26 ,  F16J9/28

Abstract: Provided is a piston ring for an internal combustion engine capable of preventing aluminum cohesion for a long time under conditions with high temperature and a high load and also suppressing the wearing of a piston member. A piston ring 1 for the internal combustion engine including a piston ring body 11 having at least one of an upper side face and a lower side face coated with an aluminum cohesion resistance film 12, wherein the aluminum cohesion resistance film 12 has a first coating film 12a made of first ceramics material formed on the piston ring body and a second coating film having Vickers hardness HV smaller than that of the first ceramics material formed on the first coating film 12a.

公开(公告)号：US09605758B2

公开(公告)日：2017-03-28

申请号：US14241284

申请日：2012-07-07

Applicant: Volker Gniesmer ,  Folkhard Holzel ,  Christian Schwarze ,  Christoph Wilken

Inventor： Volker Gniesmer ,  Folkhard Holzel ,  Christian Schwarze ,  Christoph Wilken

IPC: F04B39/04 ,  F16J1/09 ,  F04B39/00 ,  F16J9/22 ,  F16J9/00

CPC classification number: F16J1/09 ,  F04B39/0005 ,  F04B39/042 ,  F16J9/00 ,  F16J9/22

Abstract: A stroke piston for a stroke piston compressor for generating compressed air for a vehicle, such as a commercial vehicle, includes a piston body with a piston floor, a piston skirt with piston skirt walls and pin hubs for receiving a piston pin, and at least two piston rings, which can be inserted into circumferential ring grooves of the piston body. Ridges of the piston body are provided between each two ring grooves and between the piston floor and the first ring groove arranged closest to the piston floor and the ring groove arranged closest to the piston skirt facing away from the other ring groove or grooves. At least one of the ridges is recessed at least over a partial section of its ridge height, which is measured parallel to the axis of the piston body, with at least one recess relative to the diameter of the piston body.

公开(公告)号：US09423028B2

公开(公告)日：2016-08-23

申请号：US14453849

申请日：2014-08-07

Applicant: Federal-Mogul Corporation

Inventor： Andrew John Miller

IPC: F16J9/12 ,  F16J1/09 ,  F16J9/14 ,  F16J9/22

CPC classification number: F16J9/12 ,  F16J1/09 ,  F16J9/14 ,  F16J9/22

Abstract: An improved piston ring for use as an intermediate piston ring in a piston assembly having three or more piston rings is provided. The piston ring includes a piston ring body which extends through an arcuate shape between opposite end faces. The piston ring body has at least one combustion gas guidance feature for allowing a greater flow of combustion gasses to pass the piston ring body when the piston is moving in one direction and for allowing a lesser flow of combustion gasses to pass the piston ring body when the piston is moving in an opposite direction. This allows for the ring gap at the outer diameter of the piston ring to be minimized without creating flutter in another piston ring above the intermediate piston ring during operation of an engine.

Abstract translation: 提供了一种用于具有三个或更多个活塞环的活塞组件中的中间活塞环的改进的活塞环。 活塞环包括在相对端面之间延伸通过弧形形状的活塞环体。 活塞环主体具有至少一个燃烧气体引导特征，用于当活塞沿一个方向移动时允许更大的燃烧气体流通过活塞环体，并且当活塞环体在一个方向上移动时允许更少量的燃烧气体通过活塞环体， 活塞正在相反的方向移动。 这允许在发动机操作期间在活塞环的外径处的环形间隙最小化，而不会在中间活塞环上方的另一个活塞环中产生颤动。

公开(公告)号：US09062768B2

公开(公告)日：2015-06-23

申请号：US13946866

申请日：2013-07-19

Applicant: Federal-Mogul Corporation

Inventor： Miguel Azevedo ,  Keith Hampton

IPC: F01P3/10 ,  F16J1/09 ,  F02F3/22 ,  F16J9/22 ,  F16J9/06

CPC classification number: F16J1/09 ,  F02F3/22 ,  F16J9/062 ,  F16J9/22 ,  Y10T29/49265

Abstract: A piston for an internal combustion engine and method of construction thereof are provided. The piston includes a piston body having an upper combustion surface and an annular cooling gallery surrounding an undercrown region. An outer wall depends from the upper combustion surface. An annular ring belt region is formed in the outer wall adjacent the upper combustion surface. The ring belt region has at least one ring groove formed therein. At least one oil passage extends from the at least one ring groove to the cooling gallery. The oil passage has a first portion depending radially inwardly from the ring groove and a second portion ascending radially inwardly from the first portion to the cooling gallery.

Abstract translation: 提供了一种用于内燃机的活塞及其构造方法。 活塞包括具有上部燃烧表面的活塞体和围绕底下区域的环形冷却槽。 外壁依靠上燃烧面。 在邻近上燃烧表面的外壁中形成环形环带区域。 环带区域中形成有至少一个环槽。 至少一个油路从至少一个环槽延伸到冷却槽。 油通道具有从环槽径向向内的第一部分和从第一部分向冷却槽径向向内上升的第二部分。

公开(公告)号：US09027933B2

公开(公告)日：2015-05-12

申请号：US13760296

申请日：2013-02-06

Applicant: KUBOTA Corporation

Inventor： Hiroki Kuwayama ,  Takahiro Yamazaki ,  Yutaka Ishigaki ,  Hideyuki Koyama ,  Manabu Miyazaki ,  Yoshinori Tanaka ,  Keita Naito ,  Hidetaka Morinaga

IPC: F16J9/00 ,  F02F5/00 ,  F16J1/09 ,  F16J9/22

CPC classification number: F02F5/00 ,  F16J1/09 ,  F16J9/00 ,  F16J9/22

Abstract: 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).

Abstract translation: 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。

公开(公告)号：US20140234549A1

公开(公告)日：2014-08-21

申请号：US13840976

申请日：2013-03-15

Applicant: Mahle International GmbH

Inventor： THOMAS J. SMITH ,  Thomas Stong

IPC: F16J9/22

CPC classification number: C23C4/06

Abstract: Some embodiments comprise systems, methods, compositions, and apparatus including, but not limited to, thermally sprayed titanium-nitride ceramic particles encapsulated in one of several pure metals or metallic alloys; for producing a high wear-resistant coating on the contacting friction surfaces of machined component parts, including among them, piston rings, piston connecting rods and cylinder liners.

Abstract translation: 一些实施方案包括系统，方法，组合物和装置，包括但不限于包封在几种纯金属或金属合金之一中的热喷涂氮化钛陶瓷颗粒; 用于在加工零件的接触摩擦表面上生产高耐磨涂层，其中包括活塞环，活塞连杆和气缸套。

公开(公告)号：US07870819B2

公开(公告)日：2011-01-18

申请号：US12073601

申请日：2008-03-07

Applicant: Cheng Feng Lin

Inventor： Cheng Feng Lin

IPC: F16J9/22 ,  F02F5/00

CPC classification number: B23P15/10 ,  B23P19/088 ,  F16J1/006 ,  Y10T29/49265

Abstract: A piston device and its manufacturing method are disclosed. The piston device comprises a piston body having at least one annular groove on the side wall of the piston body, and at least one piston ring made of flexible material and mounted in the annular groove. The outer diameter of the piston ring mounted on in the annular groove is larger than the diameter of the piston body, so that the piston ring contacts with the inner wall but the piston body has no contact with the inner wall while the piston device moves reciprocally at the axial direction of the cylinder.

Abstract translation: 公开了一种活塞装置及其制造方法。 活塞装置包括活塞体，活塞体在活塞体的侧壁上具有至少一个环形槽，以及至少一个由柔性材料制成并安装在环形槽中的活塞环。 安装在环形槽中的活塞环的外径大于活塞体的直径，使得活塞环与内壁接触，但活塞主体与内壁不接触，同时活塞装置往复运动 在气缸的轴向。