公开(公告)号：US11946434B1

公开(公告)日：2024-04-02

申请号：US18107463

申请日：2023-02-08

申请人： INNIO Waukesha Gas Engines Inc.

发明人： Daniel David Zimmerman

IPC分类号： E02F3/16 ,  F01P3/06 ,  F02F3/16

CPC分类号： F02F3/16 ,  F01P3/06

摘要： A system includes a piston assembly. The piston assembly includes a crown portion having a crown, an outer wall coupled to the crown, a first inner wall disposed inside of the outer wall, a first fluid chamber disposed radially between the outer wall and the first inner wall, and an angled wall insert. An opening extends into the first fluid chamber in an axially inward direction. The outer wall, the first inner wall, the first fluid chamber, the opening, and the angled wall insert extend circumferentially about a central axis of the piston assembly. The angled wall insert is disposed in the opening, and the first fluid chamber is disposed axially between the crown and the angled wall insert.

公开(公告)号：US11719185B2

公开(公告)日：2023-08-08

申请号：US17518018

申请日：2021-11-03

申请人： TENNECO INC.

发明人： Warran Boyd Lineton ,  Timothy Christopher Vezina

IPC分类号： F02F3/12 ,  F02F3/10 ,  F02F3/16

CPC分类号： F02F3/12 ,  F02F3/10 ,  F02F3/16 ,  F05C2225/04 ,  F05C2253/12

摘要： A piston for an internal combustion engine is provided. The piston includes a coating applied to a ferrous body portion to reduce or prevent chemical bonding of carbon deposits or coking on the body portion at temperatures ranging from 200 to 400° C. The coating includes a fluoropolymer, such as polytetrafluoroethylene, fluorosilane, fluorocarbon, fluoroplastic resin, and/or perfluoroplastic, and may be hydrocarbon or silicone based. The coating also has a thickness of 25 microns to 1 millimeter. The coating can be disposed on an undercrown surface, ring grooves, ring lands, pin bosses, and/or skirt sections of the body portion.

公开(公告)号：US10018148B2

公开(公告)日：2018-07-10

申请号：US14975451

申请日：2015-12-18

申请人： Federal-Mogul Corporation

发明人： Michael Weinenger

IPC分类号： F02F3/16 ,  F02F3/22 ,  B23P15/10 ,  F02F3/00 ,  F02F3/28

CPC分类号： F02F3/22 ,  B23P15/10 ,  F02F3/00 ,  F02F3/0015 ,  F02F3/16 ,  F02F3/28 ,  F02F2003/0007 ,  F02F2003/0061 ,  F02F2200/04

摘要： A piston and method of construction thereof are provided. The piston includes an upper crown having an upper combustion surface and a lower crown depending therefrom. The lower crown includes a pair of laterally spaced, axially aligned pin bores configured for receipt of a wrist pin. A substantially closed, annular outer cooling gallery is formed between the upper and lower crowns, wherein a bottom surface of the cooling gallery is formed by a floor of the lower crown. An oil inlet and an oil outlet extend through the floor. The oil inlet includes an upstanding toroid-shaped protrusion that extends upwardly from the floor into the cooling gallery, wherein the protrusion is formed as a monolithic extrusion from the material of the lower crown floor.

公开(公告)号：US20170320129A1

公开(公告)日：2017-11-09

申请号：US15528278

申请日：2015-11-20

申请人： Mahle International GmbH

发明人： Ulrich Bischofberger

IPC分类号： B22C9/10 ,  B22D21/00 ,  B22D15/02 ,  F02F3/16 ,  F02F3/28

CPC分类号： B22C9/105 ,  B22D15/02 ,  B22D21/007 ,  F02F3/16 ,  F02F3/22 ,  F02F3/28 ,  F02F2200/08

摘要： A method for producing a cooling channel piston may include producing a salt core blank by pressing and sintering a pure salt material having a surface roughness Rz of at most 60 μm. The method may also include one of immersing the salt core blank into a saturated solution of the salt material, or spraying the salt core blank with a saturated solution of the salt material. The method may also include drying the salt core blank to form a salt core having a surface roughness Rz of at least 200 μm. The method may further include placing the salt core in a casting mold, and casting the cooling channel piston from a metallic casting material.

公开(公告)号：US20160222911A1

公开(公告)日：2016-08-04

申请号：US15011852

申请日：2016-02-01

申请人： Federal-Mogul Corporation

发明人： Gregory Salenbien ,  Miguel Azevedo

IPC分类号： F02F3/18 ,  F02F3/00

CPC分类号： F02F3/18 ,  F02F3/003 ,  F02F3/16 ,  F02F2003/0061

摘要： A piston for an internal combustion engine and method of construction thereof is provided. The piston has a piston body including an upper part and a lower part. The upper part has an upper combustion surface configured for direct exposure to combustion gases within a cylinder bore with an undercrown surface beneath the upper combustion surface. The body has a ring belt region configured for receipt of at least one piston ring adjacent the upper combustion surface with an annular cooling gallery configured radially inwardly from the ring belt region. The cooling gallery has a floor, wherein the floor has at least one through opening. A coolant medium is disposed in the cooling gallery, and a sealing member is disposed in the at least one through opening to seal off the coolant medium in the coolant gallery.

摘要翻译： 提供了一种内燃机的活塞及其构造方法。 活塞具有包括上部和下部的活塞体。 上部具有上部燃烧表面，其构造成用于直接暴露于具有在上燃烧表面下方的底下表面的气缸孔内的燃烧气体。 主体具有环带区域，其被配置为接收与上燃烧表面相邻的至少一个活塞环，其具有从环带区域径向向内配置的环形冷却槽。 冷却库具有地板，其中地板具有至少一个通孔。 冷却剂介质设置在冷却槽中，并且密封构件设置在至少一个通孔中以密封冷却剂库中的冷却剂介质。

公开(公告)号：US09216480B2

公开(公告)日：2015-12-22

申请号：US14008652

申请日：2012-03-27

申请人： Arnd Baberg ,  Frank Thomas Hugo Dörnenburg ,  Klaus Lades

发明人： Arnd Baberg ,  Frank Thomas Hugo Dörnenburg ,  Klaus Lades

IPC分类号： F02F3/22 ,  B23P15/10 ,  F16J9/22 ,  F02F3/16

CPC分类号： B23P15/10 ,  F02F3/16 ,  F02F3/22 ,  F02F2200/06 ,  F16J9/22 ,  Y10T29/49249

摘要： In a process for producing a piston for an internal combustion engine, a groove is worked into a cast piston blank proceeding from a combustion chamber cavity (20) in a largely radial direction and then closed to form a cooling duct. A cast piston for an internal combustion engine has a closure which is fitted after the casting and the machining between the cooling duct and a combustion chamber cavity (20).

摘要翻译： 在制造用于内燃机的活塞的方法中，将凹槽加工成从大致径向方向从燃烧室腔（20）前进的铸造活塞坯料，然后关闭以形成冷却管道。 用于内燃机的铸造活塞具有在冷却管道和燃烧室腔（20）之间的铸造和机加工之后安装的闭合件。

公开(公告)号：US20150336223A1

公开(公告)日：2015-11-26

申请号：US14817385

申请日：2015-08-04

申请人： FEDERAL-MOGUL CORPORATION

发明人： MIGUEL AZEVEDO ,  MICHAEL WEINENGER

IPC分类号： B23P15/08 ,  F02F3/00 ,  F02F3/16

CPC分类号： B23P15/08 ,  F02F3/00 ,  F02F3/0069 ,  F02F3/16 ,  F02F2200/00 ,  F16J1/005 ,  F16J1/09 ,  F16J1/16 ,  F16J7/00 ,  Y10T29/49249 ,  Y10T29/49268

摘要： A piston assembly and method of construction thereof for an internal combustion engine are provided. The assembly includes a piston head having an upper combustion wall with an undercrown surface and a ring belt region. The piston head has a floor with an upper surface and a bottom surface. The floor is spaced beneath the upper combustion wall in radial alignment with the ring belt region. A substantially enclosed, annular cooling gallery is bounded by the undercrown surface and the floor. A pair of pin bores depends directly from the floor of the cooling gallery. The assembly further includes a pin having ends configured for oscillating receipt in the pin bores. A pin bearing surface extends within the pin bores and between the pin bores in the lower surface of the floor. The assembly includes a connecting rod with an end fixed to the pin for conjoint oscillation therewith.

摘要翻译： 提供一种用于内燃机的活塞组件及其构造方法。 该组件包括具有具有下凸表面和环带区域的上燃烧壁的活塞头。 活塞头具有具有上表面和底表面的底板。 地板在上燃烧壁下方与环带区域径向对准。 一个基本封闭的环形冷却廊由底下的表面和地板界定。 一对销孔直接从冷却库的地板上取下。 组件还包括具有构造成用于在销孔中摆动收据的端部的销。 销轴承表面在销孔内部延伸并且在底板的下表面中的销孔之间延伸。 该组件包括连接杆，其端部固定到销上以与其一起振动。

公开(公告)号：US20150176522A1

公开(公告)日：2015-06-25

申请号：US14363494

申请日：2012-11-06

申请人： Volker Gniesmer ,  Emmerich Ottliczky ,  Gunter Bayer

发明人： Volker Gniesmer ,  Emmerich Ottliczky ,  Gunter Bayer

IPC分类号： F02F3/00 ,  B23P15/10 ,  F02F3/16

CPC分类号： F02F3/003 ,  B23P15/10 ,  F02B3/06 ,  F02F3/00 ,  F02F3/16 ,  F02F3/22 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/49275

摘要： A piston of an internal combustion engine, includes a piston upper part and a piston lower part which are supported via corresponding joining webs, in each case forming a joining zone connected in a material-to-material manner by means of a multi-orbital rotary friction weld. The joining webs and which are in each case directly connected have a wall thickness S1, S2 which is identical as far as possible. The piston encloses a combustion-chamber recess and at least one cooling duct which are made centrally or eccentrically in the piston. The combustion chamber recess and the cooling duct form a circular contour or a contour which deviates from a circular shape.

摘要翻译： 内燃机的活塞包括活塞上部和活塞下部，该活塞上部和活塞下部通过相应的连接腹板支撑，在每种情况下，通过多轨道旋转形成以物料对材料方式连接的接合区域 摩擦焊接。 连接腹板并且在每种情况下直接连接具有尽可能相同的壁厚S1，S2。 活塞包围燃烧室凹部和至少一个在活塞中央或偏心地制成的冷却管道。 燃烧室凹部和冷却管道形成偏离圆形的圆形轮廓或轮廓。

公开(公告)号：US20140069355A1

公开(公告)日：2014-03-13

申请号：US14080975

申请日：2013-11-15

申请人： MAHLE International GmbH

发明人： Rainer SCHARP ,  Matthias SEIFRIED

IPC分类号： F02F3/16

CPC分类号： F02F3/16 ,  B23K20/12 ,  B23K2101/003 ,  B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49249

摘要： A piston for an internal combustion engine is formed by the following steps: (a) providing a blank of a piston base body, having an outer joining surface, an inner joining surface and a circumferential lower cooling channel part that runs between the two joining surfaces, (b) providing a blank of a piston ring element, having an outer joining surface, an inner joining surface and a circumferential upper cooling channel part that runs between the two joining surfaces, (c) forming a circumferential widened region on at least one joining surface, the widened region extending toward the related cooling channel part, (d) connecting the blank of the piston base body with the blank of the piston ring element by way of their joining surfaces, by friction welding, to produce a piston blank, and (e) machining the piston blank further and/or finish-machining it to produce a piston.

摘要翻译： 用于内燃机的活塞通过以下步骤形成：（a）提供活塞基体的坯料，其具有外接合表面，内接合表面和在两个接合表面之间延伸的周向下冷却通道部分 ，（b）提供活塞环元件的坯件，其具有外连接表面，内接合表面和在两个接合表面之间延伸的周向上冷却通道部分，（c）在至少一个上形成周向加宽区域 所述加宽区域朝着相关的冷却通道部分延伸，（d）通过摩擦焊接，通过其接合表面将活塞基体的坯件与活塞环元件的坯料连接，以产生活塞坯料， 和（e）进一步加工活塞坯件和/或对其进行精加工以产生活塞。

公开(公告)号：US20130104838A1

公开(公告)日：2013-05-02

申请号：US13650208

申请日：2012-10-12

申请人： MAHLE INTERNATIONAL GMBH

发明人： Stefan SPANGENBERG

IPC分类号： F02F3/16

CPC分类号： F02F3/16 ,  F02F3/003 ,  F02F3/22

摘要： The present invention relates to a piston (10, 110, 210, 310) for an internal combustion engine, having a piston base body (11, 111, 211, 311) and a piston head element (12, 112, 212, 312), wherein the piston base body (11, 111, 211, 311) has a piston skirt (16) that is provided with pin bosses (18) having pin bores (17), wherein the piston head element (12, 112, 212, 312) forms at least one part of a piston head (25, 125, 225, 325), and wherein a circumferential cooling channel (26, 126, 226, 326) is provided in the piston head (25, 125, 225, 325). According to the invention, it is provided that at least one heat conduction element (27, 127, 227, 327) is disposed in the cooling channel (26, 126, 226, 326).

摘要翻译： 本发明涉及一种用于内燃机的活塞（10,110,210,310），其具有活塞基体（11,111,211,311）和活塞头元件（12,112,212,312） ，其中所述活塞基体（11,111,211,311）具有设置有具有销孔（17）的销凸起（18）的活塞裙部（16），其中所述活塞头元件（12,112,211,311） 312）形成活塞头（25,125,225,325）的至少一部分，并且其中周向冷却通道（26,126,226,326）设置在活塞头（25,125,225,325）中 ）。 根据本发明，提供了至少一个导热元件（27,127,227,327）设置在冷却通道（26,126,226,326）中。