中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

900 records (took 0.039 seconds)

    Movable wall member in the form of an exhaust valve spindle or a piston in an internal combustion engine
    211.
    发明授权
    Movable wall member in the form of an exhaust valve spindle or a piston in an internal combustion engine 有权
    内燃机排气门主轴或活塞形式的活动壁件

    公开(公告)号：US06173702B1

    公开(公告)日：2001-01-16

    申请号：US09180820

    申请日：1998-11-12

    Applicant: Harro Andreas Hoeg

    Inventor： Harro Andreas Hoeg

    IPC: F02B2300

    CPC classification number: C22C1/04 ,  F01L3/04 ,  F02B3/06 ,  F02B77/04 ,  F05C2201/021 ,  F05C2201/043 ,  F05C2201/0448

    Abstract: A wall member is on its side facing a combustion chamber provided with a hot-corrosion-resistant material made from a particulate starting material of an alloy containing nickel and chromium which by a HIP process has been unified to a coherent material substantially without melting the starting material. In terms of percent by weight the corrosion-resistant material comprises from 38 to 75% Cr, at the most 0.15% C, at the most 1.5% Si, at the most 1.0% Mn, at the most 0.2% B, at the most 5.0% Fe, at the most 1.0% Mg, at the most 2.5% Al, at the most 2.0% Ti, at the most 8.0% Co, at the most 3.0% Nb and a balance of Ni, the aggregate contents of Al and Ti amounting at the most to 4.0%, and the aggregate contents of Fe and Co amounting at the most to 8.0%, and the aggregate contents of Ni and Co amounting at the least to 25%. The corrosion-resistant material has a hardness of less than 310 HV measured at approximately 20° C. after the material has been heated to a temperature within the range of 550-850° C. for more than 400 hours.

    Abstract translation: 壁构件在其一侧面向燃烧室，该燃烧室设有由含有镍和铬的合金的颗粒起始材料制成的耐热腐蚀材料，其通过HIP工艺已被统一到基本上不熔化起始 材料。 在重量百分比方面，耐腐蚀材料包含38至75％的Cr，最多0.15％C，最多1.5％的Si，最多1.0％的Mn，最多0.2％的B，最多 5.0％Fe，最多1.0％的Mg，最多2.5％的Al，最多2.0％的Ti，最多8.0％的Co，最多3.0％的Nb和余量的Ni，Al的总含量 Ti含量最多为4.0％，Fe和Co的总含量最多为8.0％，Ni和Co的总含量至少为25％。 耐腐蚀材料在将材料加热至550-850℃的温度超过400小时后，在约20℃下测得的硬度小于310HV。

    Piston for use in an engine
    212.
    发明授权
    Piston for use in an engine 失效
    活塞用于发动机

    公开(公告)号：US6076506A

    公开(公告)日：2000-06-20

    申请号：US82135

    申请日：1998-05-20

    Applicant: Willibald G. Berlinger ,  T. Pin P. Shyu ,  John M. Sloma

    Inventor： Willibald G. Berlinger ,  T. Pin P. Shyu ,  John M. Sloma

    IPC: F01B9/02 ,  F01B11/00 ,  F02B71/04 ,  F02F3/00 ,  F04B17/00

    CPC classification number: F02F3/00 ,  F01B9/026 ,  F02B71/045 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: A piston is provided for use in a free-piston engine and includes a crown portion having a predetermined thickness, a plunger connection portion having a passage extending therethrough along the axis of the piston and being connected to the crown portion, a sealing portion extending from the crown portion, and a strut portion having a plurality of struts disposed between the sealing portion and the plunger connection portion. The piston of the subject invention provides a compact, high strength, low weight design that is effective in use to provide efficient operation and effectively conduct heat from the piston during use.

    Abstract translation: 提供用于自由活塞发动机的活塞并且包括具有预定厚度的冠部部分，柱塞连接部分具有沿着活塞轴线延伸穿过的通道并且连接到冠部部分，该密封部分从 冠部，以及具有设置在密封部和柱塞连接部之间的多个支柱的支柱部。 本发明的活塞提供了紧凑，高强度，低重量的设计，其在使用中有效地提供有效的操作并且有效地从活塞传导热量。

    Method of fabricating carbon--carbon engine component
    213.
    发明授权
    Method of fabricating carbon--carbon engine component 失效
    碳 - 碳发动机部件的制造方法

    公开(公告)号：US6029346A

    公开(公告)日：2000-02-29

    申请号：US70325

    申请日：1998-04-30

    Applicant: Venkatesh Chellappa

    Inventor： Venkatesh Chellappa

    IPC: C04B35/83 ,  F02F3/00 ,  C04B33/32

    CPC classification number: F02F3/0023 ,  C04B35/83 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0808 ,  F05C2251/042 ,  Y10T29/49249 ,  Y10T29/49259 ,  Y10T29/49261

    Abstract: An internal combustion engine component assembly including piston, wrist pin, and cylinder sleeve, all constructed of a matching carbon--carbon composite is disclosed. The piston is a two-piece assembly divided in crown and skirt, each fabricated individually to optimize the most desirable properties in the respective cylinder areas in which they operate. The crown is fabricated by placing the fiber and binder into a compression mold and pyrolizing(heating) the resulting preform at a high temperature in the range of 1500 to 2000 degrees C. to achieve high temperature strength, and high thermal conductivity that continue after machining to the finished crown part. The skirt, a separate piece, on the other hand is fabricated differently to seek higher lubricity and better wear resistance along the cylinder wall with lower thermal conductivity to minimize heat loss. The skirt preform is fabricated by wrapping the fiber around a mandrel and subsequently heating and pyrolizing at temperatures far less than the heat treatment temperature of the crown preform resulting in significant time and cost saving. The skirt precursor is machined and then assembled to the crown to complete the piston. The piston skirt, the wrist pin and the cylinder sleeve are also fabricated using similar composition matching techniques to minimize tolerances between these parts. All three of these parts are separately preformed on mandrels utilizing the same wrapping angles to equate wrap strength. Then, the resulting preforms of each are preheated and pyrolized at the same temperatures to almost similar elevated temperature strength and, most importantly, coefficients of thermal expansion. This technique permits the engine designer to reduce the clearance between these parts, thereby minimize blow by, reduce lubrication requirements, and increase engine horsepower.

    Abstract translation: 公开了一种包括活塞，腕针和气缸套的内燃机部件组件，全部由匹配的碳 - 碳复合材料构成。 活塞是分为冠和裙部的两件式组件，每个组件分别制造成优化其操作的相应气缸区域中最理想的性能。 通过将纤维和粘合剂放置在压模中并在1500-2000℃的高温下热处理（加热）所得预成型件来制造表冠，以实现高温强度和加工后继续的高热导率 到成品冠部分。 另一方面，裙子是单独的，以不同的方式制造，以便沿着汽缸壁获得更高的润滑性和更好的耐磨性，并具有较低的热导率以最小化热损失。 通过将纤维缠绕在心轴上并随后在远远低于冠状预制件的热处理温度的温度下加热和热解来制造裙部预制件，从而节省了大量的时间和成本。 裙边前体被加工，然后组装到冠部以完成活塞。 活塞裙，腕针和气缸套也使用类似的组合匹配技术制造，以最小化这些部件之间的公差。 这些部件中的所有三个都使用相同的缠绕角度分别在心轴上预成型以等于包裹强度。 然后，将所得到的预成型件在相同温度下预热和热解至几乎相似的升高的温度强度，最重要的是热膨胀系数。 这种技术允许发动机设计者减少这些部件之间的间隙，从而最大限度地减少打击，减少润滑要求并提高发动机功率。

    Non-annular piston bowl for two-valve engines using offset injectors
    214.
    发明授权
    Non-annular piston bowl for two-valve engines using offset injectors 失效
    用于使用偏置注射器的双阀发动机的非环形活塞碗

    公开(公告)号：US5970946A

    公开(公告)日：1999-10-26

    申请号：US972856

    申请日：1997-11-18

    Applicant: Patrick R. Shea ,  Aaron S. Quinton ,  Nha T. Le

    Inventor： Patrick R. Shea ,  Aaron S. Quinton ,  Nha T. Le

    IPC: F02B3/06 ,  F02B23/06 ,  F02B23/08

    CPC classification number: F02B23/066 ,  F02B23/0696 ,  F02B2275/14 ,  F02B23/069 ,  F02B3/06 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/123 ,  Y02T10/125

    Abstract: A piston having an offset piston bowl for use in an engine having a correspondingly offset fuel injector, wherein the piston bowl has a non-circular or non-annular shape. The non-annular bowl shape is contoured to permit increased spray plume length, avoiding impingement. The bowl is especially useful in a diesel engine having two-valves per cylinder, wherein the injector must be mounted in an offset location because a central region of the cylinder head is occupied by two proximal valve ports. The bowl has a raised inner portion surrounded by a concave outer portion. A peak or apex of the raised inner portion is located closer to a peripheral wall of the concave outer portion at a "short" side of the bowl than at a "long" side of the bowl.

    Abstract translation: 一种活塞，其具有用于具有相应偏移的燃料喷射器的发动机中的偏移活塞碗，其中活塞碗具有非圆形或非环形形状。 非环形碗形状具有轮廓，以允许增加喷雾长度，避免冲击。 该碗在具有每个气缸的两个阀的柴油发动机中特别有用，其中喷射器必须安装在偏移位置，因为气缸盖的中心区域被两个近端阀口占据。 碗具有被凹入的外部包围的凸起的内部。 升高的内部部分的顶点或顶点在碗的“短”侧比在碗的“长”侧更靠近凹形外部的周壁。

    Multipart piston for an internal combustion engine
    217.
    发明授权
    Multipart piston for an internal combustion engine 失效
    用于内燃机的多段活塞

    公开(公告)号：US5701802A

    公开(公告)日：1997-12-30

    申请号：US743823

    申请日：1996-11-05

    Applicant: Klaus Junge

    Inventor： Klaus Junge

    IPC: F02F3/00 ,  F16J1/14

    CPC classification number: F16J1/14 ,  F02F3/0069 ,  F05C2201/021 ,  F05C2201/0448

    Abstract: An engine piston includes a piston head; a first bearing block forming a one-piece component with the piston head and having a first bearing face; a piston skirt being a component separate from the piston head; a second bearing block forming a one-piece component with the piston skirt and having a second bearing face; and a coupling device for interconnecting the piston head and the piston skirt and for interconnecting the first and second bearing blocks with one another. The first and second bearing faces complement one another to form a bearing for rotatably supporting a connecting rod.

    Abstract translation: 发动机活塞包括活塞头; 第一轴承块，其与所述活塞头形成具有第一支承面的单件部件; 活塞裙部是与活塞头分离的部件; 第二轴承座，其形成具有活塞裙部并具有第二支承面的单件部件; 以及用于将活塞头和活塞裙部相互连接并且用于将第一和第二承载块彼此互连的联接装置。 第一和第二轴承面彼此互补以形成用于可旋转地支撑连杆的轴承。

    Compressor for a refrigeration machine having a thrust bearing
    218.
    发明授权
    Compressor for a refrigeration machine having a thrust bearing 失效
    具有推力轴承的制冷机用压缩机

    公开(公告)号：US5695326A

    公开(公告)日：1997-12-09

    申请号：US655883

    申请日：1996-05-31

    Applicant: Hideto Oka ,  Shigeru Muramatsu ,  Hirotsugu Fukuoka ,  Hiroshi Matsunaga ,  Masahiro Tsubokawa

    Inventor： Hideto Oka ,  Shigeru Muramatsu ,  Hirotsugu Fukuoka ,  Hiroshi Matsunaga ,  Masahiro Tsubokawa

    IPC: F04C18/02 ,  F04C29/00 ,  F04C29/02 ,  F16C33/12 ,  F04C18/04 ,  F16C17/04

    CPC classification number: F16C33/12 ,  F04C29/0021 ,  F04C2210/26 ,  F04C2230/91 ,  F04C2240/50 ,  F05C2201/0448 ,  F05C2201/0466 ,  F05C2203/083 ,  F16C2204/60 ,  Y10S384/912 ,  Y10S384/913 ,  Y10S417/902

    Abstract: A compressor for a refrigeration machine is provided without any problems of reduction in the life of a thrust bearing structure even when a substitutive coolant not containing any chlorine is used. In the compressor for a refrigeration machine having a thrust bearing made of steel for supporting a thrust load applied to a drive shaft, a thrust bearing surface made of a material different from that of the drive shaft is formed in the thrust bearing by means of a surface treatment. Alternatively a washer defining the thrust bearing surface may be surface treated to provide a material different from that of the drive shaft. The washer may also be made of a material different from that of the drive shaft. According to the the present invention, even when a boundary lubricating state is produced between the drive shaft and the thrust bearing surface sticking is prevented. As a result, the life of the thrust bearing structure of the drive shaft can be made longer and a problem of reduction in the life of the thrust bearing structure can be avoided even when a substitutive coolant not containing any chlorine is utilized.

    Abstract translation: 提供一种用于制冷机的压缩机，即使使用不含氯的替代冷却剂，也不会产生推力轴承结构的寿命降低的问题。 在具有用于支撑施加到驱动轴上的推力负载的由钢构成的推力轴承的制冷机的压缩机中，由推力轴承形成的与驱动轴不同的推力轴承表面形成在推力轴承中 表面处理。 或者，限定止推轴承表面的垫圈可以被表面处理以提供与驱动轴不同的材料。 垫圈也可以由与驱动轴不同的材料制成。 根据本发明，即使在驱动轴与推力轴承面之间产生边界润滑状态，也能够防止粘着。 结果，即使使用不含氯的替代冷却剂，驱动轴的推力轴承结构的寿命也可以更长，并且即使使用不含氯的替代冷却剂，也能够避免推力轴承结构的使用寿命的问题。

Patent Agency Ranking