Thermal management system for heat engine components
    581.
    发明授权
    Thermal management system for heat engine components 失效
    热机组件热管理系统

    公开(公告)号:US5477820A

    公开(公告)日:1995-12-26

    申请号:US315162

    申请日:1994-09-29

    Inventor: V. Durga N. Rao

    Abstract: Heat engine piston and combustion chamber construction enclosing a gas combustion zone, comprising: a piston body having a crown facing said gas combustion zone; combustion chamber surfaces cooperating with said piston to complete enclosure of said zone; and a thermal diffusivity coating on said crown and combustion chamber surfaces having an effective thickness to operate as a thermal diode to restrict heat transfer to said piston body and combustion chamber and to restrict heat transfer to said combustible charge prior to combustion. A method of thermally managing heat generated by an internal combustion engine, the engine having combustion chamber walls for combusting a gaseous mixture of air and fuel, a cooling jacket for cooling said walls, and a piston moveable along a portion of said walls, comprising: increasing the compression ratio of the engine to induce engine-knock for an uncoated chamber; coating at least the crown of the piston of said combustion chamber walls with a low thermal diffusivity layer that functions as a heat diode to restrict heat transfer in both directions normal to the coating; operating said engine with said coating chamber wall and increased compression ratio, whereby fresh intake of combustible mixture to said combustion chamber will be drawn thereinto at a lower temperature and volumetric efficiency with less heat from said combustion being wasted to said cooling jacket.

    Abstract translation: 包括气体燃烧区的热发动机活塞和燃烧室结构包括:具有面向所述气体燃烧区的冠部的活塞体; 燃烧室表面与所述活塞配合以完成所述区域的外壳; 以及在所述冠部和燃烧室表面上的热扩散性涂层,其具有有效厚度以用作热二极管以限制对所述活塞体和燃烧室的热传递,并且限制在燃烧之前对所述可燃气体的传热。 一种热管理由内燃机产生的热的方法,所述发动机具有用于燃烧空气和燃料的气体混合物的燃烧室壁,用于冷却所述壁的冷却套和沿着所述壁的一部分可移动的活塞, 增加发动机的压缩比以引起未涂覆室的发动机爆震; 用低热扩散层涂覆至少所述燃烧室壁的活塞的顶部,该低热扩散层用作热二极管以限制与涂层垂直的两个方向的传热; 使用所述涂覆室壁操作所述发动机并增加压缩比,由此在较低温度和容积效率下将吸入到所述燃烧室的可燃混合物的新鲜吸入,而来自所述燃烧的较少的热被浪费到所述冷却套上。

    Fastening devices
    582.
    发明授权
    Fastening devices 失效
    紧固装置

    公开(公告)号:US5456406A

    公开(公告)日:1995-10-10

    申请号:US157632

    申请日:1993-11-24

    Abstract: Fastening devices such as washers, seals and drive pins subject to corrosive deterioration of all or select portions thereof wherein all or such select portions are protected from such corrosion and failure by a thin coating or coatings of hard surface material or materials. In a preferred form, the fastening device is coated with a synthetic diamond material formed as a thin layer in situ thereon. In addition to preventing moisture and other corrosive material from penetrating to the base metal, such synthetic diamond material serves to preserve the surface integrity of the fastening device preventing the formation or spread of surface flaws produced during use or during the fabrication of the fastening device.

    Abstract translation: 诸如垫圈,密封件和驱动销的紧固装置遭受所有或选择部分的腐蚀性劣化,其中通过薄涂层或硬表面材料或材料的涂层来保护所有或这样的选择部分免受这种腐蚀和破坏。 在优选形式中,紧固装置涂覆有在其上原位形成为薄层的合成金刚石材料。 除了防止水分和其他腐蚀性材料渗透到贱金属之外,这种合成金刚石材料用于保持紧固装置的表面完整性,防止在使用期间或在制造紧固装置期间产生的表面缺陷的形成或扩展。

    High speed indirect injection diesel engine
    583.
    发明授权
    High speed indirect injection diesel engine 失效
    高速间接喷射柴油机

    公开(公告)号:US5417189A

    公开(公告)日:1995-05-23

    申请号:US160646

    申请日:1993-12-02

    Inventor: Jose F. Regueiro

    Abstract: A diesel engine (10) has a pre-combustion chamber (30) with an angled and tapered transfer passage (60) leading to the main combustion chamber (44). The transfer passage (60) is tapered to provide a larger lower end (62) facing the main chamber (44) and smaller upper end (64) facing the pre-combustion chamber (30). Air passing through the passage (60) during the compression stroke undergoes heating and swirling within the pre-combustion chamber. The piston has an upper surface (46) with recessed lobes (20) and (22) and recessed passage area (28). Each recessed lobe functions as a valve pocket for the respective intake valve (32) and exhaust valve (42). The valve pockets are deep enough to provide sufficient valve lifts to allow valve overlap periods comparable with spark ignition gasoline engines without interfering with the piston upper surface (46).

    Abstract translation: 柴油发动机(10)具有预燃室(30),其具有通向主燃烧室(44)的成角度且锥形的输送通道(60)。 输送通道(60)是锥形的,以提供面向主室(44)的更大的下端(62)和面向预燃烧室(30)的较小的上端(64)。 在压缩冲程期间通过通道(60)的空气在预燃烧室内进行加热和旋转。 活塞具有带有凹形凸起(20)和(22)和凹进通道区域(28)的上表面(46)。 每个凹入的凸角用作相应进气门(32)和排气阀(42)的阀口。 阀口足够深以提供足够的气门升程,以允许与火花点火汽油发动机相当的阀重叠时间而不会干扰活塞上表面(46)。

    Method for the incorporation of a component into a piston
    586.
    发明授权
    Method for the incorporation of a component into a piston 失效
    将部件结合到活塞中的方法

    公开(公告)号:US5341866A

    公开(公告)日:1994-08-30

    申请号:US796436

    申请日:1991-11-22

    Applicant: Robert Munro

    Inventor: Robert Munro

    Abstract: A porous body is formed and joined to the component by sintering a metal powder to the component. The porous body and component are placed into a piston casting die. Molten metal is poured into the die such that the porous body becomes infiltrated with the molten metal and the molten metal is allowed to solidify. The porous body may be formed by sintering loose metal powder to the component, or by forming a separate body by die pressing of metal powder and which body may be subsequently sintered and joined to the component.

    Abstract translation: 通过将金属粉末烧结到组分上而形成多孔体并与组分接合。 将多孔体和部件放置在活塞铸模中。 将熔融金属倒入模具中,使得多孔体渗入熔融金属并使熔融金属固化。 多孔体可以通过将松散的金属粉末烧结到组件上,或者通过模压金属粉末形成单独的体,并且随后可以将该体烧结并接合到该组件上。

    Ceramic composite coating material
    587.
    发明授权
    Ceramic composite coating material 失效
    陶瓷复合涂料

    公开(公告)号:US5305726A

    公开(公告)日:1994-04-26

    申请号:US954450

    申请日:1992-09-30

    Abstract: A ceramic coating for a metal article includes a metallic bond coat deposited on the metal article, at least one MCrAlY/ceramic layer deposited on the bond coat, and a ceramic composite top layer deposited on the MCrAlY/ceramic layer. The M in MCrAlY stands for Fe, Ni, Co, or a mixture of Ni and Co. The ceramic in the MCrAlY/ceramic layer comprises mullite, alumina, zircon, sillimanite, sodium zirconium phosphate, fused silica, cordierite, aluminum titanate, or zirconia. The ceramic composite top layer comprises a ceramic matrix and at least one secondary phase. A method of making the coating includes sequentially depositing a metallic bond coat on the metal article, at least one MCrAlY/ceramic layer on the bond coat, and a ceramic composite top layer on the MCrAlY/ceramic layer.

    Abstract translation: 用于金属制品的陶瓷涂层包括沉积在金属制品上的金属粘结涂层,沉积在粘合涂层上的至少一个MCrAlY /陶瓷层和沉积在MCrAlY /陶瓷层上的陶瓷复合顶层。 MCrAlY中的M代表Fe,Ni,Co或Ni和Co的混合物。MCrAlY /陶瓷层中的陶瓷包括莫来石,氧化铝,锆石,硅线石,磷酸锆锆,熔融二氧化硅,堇青石,钛酸铝或 氧化锆 陶瓷复合顶层包括陶瓷基体和至少一个第二相。 制备涂层的方法包括在金属制品上依次沉积金属粘结涂层,在粘合涂层上至少一个MCrAlY /陶瓷层和MCrAlY /陶瓷层上的陶瓷复合顶层。

    Gears and gear assemblies
    589.
    发明授权
    Gears and gear assemblies 失效
    齿轮和齿轮组件

    公开(公告)号:US5288556A

    公开(公告)日:1994-02-22

    申请号:US765447

    申请日:1991-09-25

    Abstract: Improvements in gears and gear teeth structures for use in driving assemblies, such as machines, vehicles and the like, wherein the teeth portions of the gears and, in certain instances, other portions thereof, are coated with a hard synthetic diamond material deposited thereagainst as carbon atoms derived from a fluid, such as methane gas, when high energy radiation, such as microwave radiation, is beamed through the gas against the surfaces of the gears and gear teeth thereof. In certain instances, the hard diamond material coating the gear teeth and the spaces therebetween, is overcoated with a thin layer of chromium which serves to protect the diamond surfaces of the teeth during use so as to prevent destruction of the diamond layer by physical attrition caused by stress and abrasive particles engaging the teeth during use of the gears. In a particular form of the invention, two or more gears having their teeth similarly coated with synthetic diamond material are assembled in meshing engagement with each other and a coating of chromium disposed on the outer surfaces of the diamond material coating the teeth serves to lubricate and protect the diamond coating against destruction or attrition as the gears mesh and are driven with respect to each other.

    Abstract translation: 用于驱动组件(例如机器,车辆等)中的齿轮和齿轮齿结构的改进,其中齿轮的齿部分,在某些情况下,其某些部分被涂覆有沉积在其上的硬质合金金刚石材料, 当诸如微波辐射的高能量辐射时,来自诸如甲烷气体的流体的碳原子通过气体横穿其齿轮和齿轮齿的表面。 在某些情况下,涂覆齿轮齿和其间的空间的硬质金刚石材料被涂覆有薄层的铬,其用于在使用期间保护齿的金刚石表面,以便防止由于物理磨损引起的金刚石层的破坏 通过在使用齿轮期间通过应力和磨料颗粒与齿接合。 在本发明的特定形式中,两个或多个具有类似地用合成金刚石材料涂覆的齿的齿轮被组装成彼此啮合接合,并且设置在涂覆牙齿的金刚石材料的外表面上的铬涂层用于润滑和 保护金刚石涂层免受破坏或磨损,因为齿轮啮合并相对于彼此驱动。

    Ball and roller bearings and bearing components
    590.
    发明授权
    Ball and roller bearings and bearing components 失效
    滚珠轴承和滚子轴承组件

    公开(公告)号:US5284394A

    公开(公告)日:1994-02-08

    申请号:US795812

    申请日:1991-11-21

    Inventor: Jerome Lemelson

    Abstract: Improved structures in bearings operable to receive and support shafts or members which are supported for rotation on shafts or pins are disclosed. In one form, just the inner cylindrical surface of a solid bearing made of metal or hard ceramic material is coated with a synthetic diamond material deposited in situ therein as carbon atoms by means of high energy radiation, which also serves to form synthetic diamond structures of layers of such carbon atoms so deposited. In another form, the entire race of a multiple part bearing is coated with synthetic diamond material. In a third form, a rolling member type bearing, such as a ball or roller bearing, is provided containing an inner race, an outer race, and a plurality of balls, rollers, or other rolling members supported between the inner and outer race. In certain instances, the rolling members are retained by means of a cage supported therebetween. The rolling members, inner and outer races, and, when employed, the cage, are all coated with hard synthetic diamond material deposited in situ thereon as described. Alternatively, select portions of the components of the bearing may be coated to the exclusion of other portions thereof. In all forms, the synthetic diamond material coating may be overcoated with thin layers of chromium, chromium alloys, or similar materials.

    Abstract translation: 公开了可操作地接收和支撑在轴或销上旋转的轴或构件的轴承中的改进的结构。 在一种形式中,仅由金属或硬质陶瓷材料制成的实心轴承的内圆柱形表面涂覆有通过高能量辐射作为碳原子原位沉积的合成金刚石材料,其也用于形成合成金刚石结构 这样沉积的碳原子层。 在另一种形式中,多部分轴承的整个座圈涂有合成金刚石材料。 在第三形式中,设置有诸如滚珠或滚子轴承的滚动构件类型的轴承,其包含内圈,外圈和支撑在内圈和外圈之间的多个滚珠,滚子或其它滚动构件。 在某些情况下,滚动构件通过其间支撑的保持架保持。 滚动构件,内圈和外圈以及当使用时,保持架全部用如上所述原位沉积的硬质合金金刚石材料涂覆。 或者,选择轴承的部件的一部分可以被涂覆以排除其它部分。 在所有形式中,合成金刚石材料涂层可以用薄铬层,铬合金或类似材料涂覆。

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