Piston with sealed cooling gallery containing a thermally conductive composition

    公开(公告)号:US11022065B2

    公开(公告)日:2021-06-01

    申请号:US15364616

    申请日:2016-11-30

    摘要: A heavy duty piston for an internal combustion engine comprises a thermally conductive composition filling 10 to 90 vol. % of a sealed cooling gallery. The thermally conductive composition includes bismuth and/or tin. For example, the thermally conductive composition can be a single-phase binary mixture of bismuth and tin. The thermally conductive composition has improved thermal properties, for example a melting point around 139° C., a thermal conductivity around 22 W/m·K, and a thermal diffusivity around 1.43E-5 m2/s. The thermally conductive composition is not reactive and does not include toxic or cost-prohibitive metals. During high temperature operation, as the piston reciprocates in the cylinder bore, the thermally conductive composition flows throughout the cooling gallery to dissipate heat away from the upper crown and thus improve efficiency of the engine.

    High modulus wear resistant gray cast iron for piston ring applications
    2.
    发明授权
    High modulus wear resistant gray cast iron for piston ring applications 有权
    用于活塞环应用的高模量耐磨灰铸铁

    公开(公告)号:US09316313B2

    公开(公告)日:2016-04-19

    申请号:US14741678

    申请日:2015-06-17

    摘要: A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, austenitizing, quenching, and tempering the alloy.

    摘要翻译: 由铸铁形成的活塞环提供了改进的机械加工性能和卓越的性能和最低成本。 铸铁包括2.2-2.9重量% %碳,3.2〜4.2wt。 %硅,0.75〜1.25重量% %铜,1.0〜1.5重量% %锰,0.09〜0.15重量% %硫,不大于0.2wt。 %磷,平均碳当量为3.8。 铸铁优选包括马氏体与MnS的基质和分散在其中的碳化物。 基质也优选不含铁素体,奥氏体和稳定体。 铸铁通过铸造,奥氏体化,淬火和回火合金形成。

    Pinless piston with gallery
    3.
    发明授权
    Pinless piston with gallery 有权
    无画活塞与画廊

    公开(公告)号:US09303584B2

    公开(公告)日:2016-04-05

    申请号:US14487498

    申请日:2014-09-16

    发明人: Michael Weinenger

    摘要: A piston assembly having a piston member and a connecting rod. The piston member has a crown portion and a lower portion bonded together with a cooling gallery formed between them. The connecting rod has a ball end which is positioned in a socket in the piston member. In one embodiment, the ball end can have two flat surfaces and be held in position by C-clips. In another embodiment, the ball end is cylindrically shaped and the socket has a corresponding shape.

    摘要翻译: 具有活塞构件和连杆的活塞组件。 活塞构件具有冠部和下部,其与形成在它们之间的冷却槽结合在一起。 连杆具有位于活塞部件中的插座中的球端。 在一个实施例中,球端可以具有两个平坦表面并且通过C形夹保持就位。 在另一个实施例中,球端是圆柱形的并且插座具有相应的形状。

    Piston with anti-carbon deposit coating and method of construction thereof
    4.
    发明授权
    Piston with anti-carbon deposit coating and method of construction thereof 有权
    具有防碳沉积涂层的活塞及其构造方法

    公开(公告)号:US09163579B2

    公开(公告)日:2015-10-20

    申请号:US13786156

    申请日:2013-03-05

    摘要: A piston and method of construction are provided. The piston includes a piston body having an upper combustion surface configured for direct exposure to combustion gases within a cylinder bore with an undercrown surface located beneath the upper combustion surface. The piston body also includes a ring belt region configured for receipt of at least one piston ring adjacent the upper combustion surface with a cooling gallery configured radially inwardly and in substantial radial alignment with the ring belt region. The piston further includes a non-stick material contained in or bonded to at least one of the undercrown surface and at least a portion of the cooling gallery, wherein the non-stick material inhibits the build-up of carbon deposits thereon.

    摘要翻译: 提供了一种活塞和结构方法。 活塞包括具有上部燃烧表面的活塞体,该燃烧表面构造成用于直接暴露于气缸孔内的燃烧气体,其中底部表面位于上部燃烧表面下方。 活塞主体还包括环带区域,其被配置为接收与上燃烧表面相邻的至少一个活塞环,其具有径向向内配置并且与环带区域基本上径向对准的冷却槽。 所述活塞还包括不粘材料,所述不粘材料包含在或结合到所述底下表面和所述冷却槽的至少一部分中的至少一个上,其中所述不粘材料抑制其上的碳沉积物的积聚。

    Piston assembly and method of making a piston
    6.
    发明授权
    Piston assembly and method of making a piston 有权
    活塞组件及制作活塞的方法

    公开(公告)号:US09127616B2

    公开(公告)日:2015-09-08

    申请号:US14049622

    申请日:2013-10-09

    IPC分类号: F02F3/00

    摘要: An improved piston for an opposed piston internal combustion engine is provided. The piston includes a piston body that extends along an axis from a crown portion to a skirt portion with a full piston skirt and to a pin boss portion. The piston body includes a plurality of ring grooves in the crown portion and at least one ring groove in the skirt portion. A wrist pin which has a length that is longer than a maximum diameter of the piston body is joined with the piston body at the pin boss portion and extends past the pin boss portion for receiving a pair of connecting rods on opposite sides of the piston body. The piston body is a monobloc piston body which is made of one integral piece or of multiple pieces that are welded or adhered together.

    摘要翻译: 提供了一种用于相对的活塞内燃机的改进的活塞。 该活塞包括一个活塞体,该活塞主体沿着一个轴线从冠部延伸到具有全活塞裙部的裙部和一个销凸台部分。 活塞主体包括冠部中的多个环形槽和裙部中的至少一个环形槽。 具有比活塞主体的最大直径长的长度的腕销在活塞凸台部分处与活塞体接合并且延伸穿过销凸台部分,用于在活塞体的相对侧上接收一对连杆 。 活塞体是一体的活塞体,由一体的一体或多个焊接或粘合在一起的多个部件制成。

    Radial shaft seal with static and hydrodynamic sealing features
    8.
    发明授权
    Radial shaft seal with static and hydrodynamic sealing features 有权
    径向轴封具有静态和流体动力学密封功能

    公开(公告)号:US09062774B2

    公开(公告)日:2015-06-23

    申请号:US13426450

    申请日:2012-03-21

    IPC分类号: F16J15/32

    CPC分类号: F16J15/3224 F16J15/3244

    摘要: A radial shaft seal configured for receipt in a housing and about a shaft to sealingly isolate an air-side of the shaft seal from an oil-side of the shaft seal is provided. The seal includes an annular mounting portion; an elastomeric seal body connected to the mounting portion, and a seal lip connected to the seal body. The seal lip has an annular inner sealing surface extending axially between an oil-side end and a free air-side end. The inner sealing surface has a first groove region and a circumferentially continuous annular static band. The first groove region is spaced axially from the static band and extends between the static band and the oil-side end to pump lubrication toward the oil-side of the seal. The static band prevents the lubrication from leaking from the oil-side to the air-side of the seal.

    摘要翻译: 提供了一种径向轴密封件,其构造成用于容纳在壳体中并且围绕轴,以将轴封的空气侧与轴封的油侧密封隔离。 密封件包括环形安装部分; 连接到安装部分的弹性密封体和连接到密封体的密封唇。 密封唇缘具有在油侧端部和自由空气侧端部之间轴向延伸的环形内部密封表面。 内密封表面具有第一凹槽区域和周向连续的环形静态带。 第一槽区域与静态带轴向间隔开,并且在静态带和油侧端之间延伸以朝向密封件的油侧泵送润滑。 静态带防止润滑从油面泄漏到密封件的空气侧。

    Gasket with a compression limiter
    9.
    发明授权
    Gasket with a compression limiter 有权
    带压缩限制器的垫片

    公开(公告)号:US09027935B2

    公开(公告)日:2015-05-12

    申请号:US13362459

    申请日:2012-01-31

    IPC分类号: F16J15/08

    摘要: A multi-layer gasket including first and second functional layers, each having an opening. Each of the functional layers includes a compression bead, and the compression beads contact and seal against one another when the gasket is compressed between a cylinder head and an engine block. At least one of the functional layers includes a stopper disposed between the compression bead and the opening. The stopper has a gear-like shape including a plurality of circumferentially spaced teeth. Each tooth extends upwardly from a plane by a distance which is less than the combined height of the compression beads. When the gasket is compressed between the cylinder head and engine block, the stopper ensures that the compression beads remain elastically biased against one another and maintain a gas-tight seal.

    摘要翻译: 一种包括第一和第二功能层的多层垫圈,每个具有开口。 每个功能层包括压缩珠,并且当垫圈在气缸盖和发动机缸体之间被压缩时,压缩珠彼此接触并密封。 至少一个功能层包括设置在压缩珠和开口之间的止动件。 止动件具有包括多个周向间隔开的齿的齿轮形状。 每个齿从平面向上延伸的距离小于压缩珠的组合高度。 当垫圈在气缸盖和发动机缸体之间被压缩时,止动器确保压缩珠保持彼此弹性偏压并保持气密密封。

    Static gasket with wire compression limiter
    10.
    发明授权
    Static gasket with wire compression limiter 有权
    带有线压限制器的静态垫片

    公开(公告)号:US08984750B2

    公开(公告)日:2015-03-24

    申请号:US13404188

    申请日:2012-02-24

    申请人: Thomas Swasey

    发明人: Thomas Swasey

    IPC分类号: B21D53/84 F16J15/08

    摘要: A static gasket configured for establishing a seal between a cylinder head and an engine block including at least one layer having an opening and at least one compression bead. The compression bead extends circumferentially about the opening and projects out of a plane for deforming elastically when the gasket is compressed between the cylinder head and the engine block. A compression limiter which is formed from a metal wire is disposed radially between the opening and the compression bead for preventing the compression bead from being fully flattened, even if the cylinder head is overloaded onto the engine block. The compression bead is preferably induction and/or resistance welded to at least one of the layer(s).

    摘要翻译: 一种静态衬垫,其构造成用于在气缸盖和发动机缸体之间建立密封,该密封件包括至少一个具有开口和至少一个压缩珠的层。 压缩珠围绕开口周向延伸,并在垫片在气缸盖和发动机缸体之间被压缩时弹出平面以进行弹性变形。 由金属线形成的压缩限制器径向设置在开口和压缩珠之间,以防止压缩珠完全变平,即使气缸盖过载到发动机缸体上。 压缩珠优选地是感应和/或电阻焊接到所述层中的至少一个层。