Multiple-hole, piston cooling nozzle and assembly arrangement therefore
    401.
    发明授权
    Multiple-hole, piston cooling nozzle and assembly arrangement therefore 失效
    因此,多孔活塞冷却喷嘴和组装装置

    公开(公告)号:US5649505A

    公开(公告)日:1997-07-22

    申请号:US588133

    申请日:1996-01-18

    Inventor: Brian L. Tussing

    CPC classification number: F02F3/22 F01P3/08 F05C2201/021 F05C2201/0448

    Abstract: A piston cooling nozzle for an internal combustion engine includes a two-part construction comprising a mounting base and a main body. The mounting base includes a substantially flat end panel which is designed to attach directly to a plateau area on the engine block. The mounting base also includes a plug portion which is designed to seal closed an open end of the main body. The main body includes a through hole which is located in communication with an engine oil rifle. The main body represents a single piece component with an extension arm and cooling nozzle head. The extension arm includes a plurality of drilled passageways which are in communication with four flow jet apertures in the cooling nozzle head. The cooling nozzle head has a generally triangular shape and the four flow jet apertures are arranged so as to track the arc-like curvature of the corresponding piston cooling gallery. Oil flowing through the oil rifle passes through the extension arm and exits from the cooling nozzle head as four narrow and well defined jets of oil. These four jets of oil are targeted at an entrance area for the piston cooling gallery. The configuration of the piston cooling nozzle is such that it may be installed directly into an assembled engine without interference. By dividing a single flow stream into four individual jets, there is a increase in the length to diameter ratio resulting in less stream divergence and a more targeted spray.

    Abstract translation: 用于内燃机的活塞冷却喷嘴包括两部分构造,其包括安装基座和主体。 安装基座包括基本上平坦的端板,其被设计成直接附接到发动机缸体上的平台区域。 安装基座还包括插塞部分,其被设计成密封封闭主体的开口端。 主体包括与发动机油步枪连通的通孔。 主体代表具有延伸臂和冷却喷嘴头的单件组件。 延伸臂包括与冷却喷嘴头中的四个流动喷射孔连通的多个钻孔通道。 冷却喷嘴头具有大致三角形的形状,并且四个流动喷射孔布置成跟踪对应的活塞冷却廊的弧形曲率。 流过油步枪的油通过延伸臂并从冷却喷嘴头出口,作为四个狭窄且明确界定的油喷射。 这四架喷油机的目标是活塞冷却廊的入口处。 活塞冷却喷嘴的构造使得其可以直接安装在组装的发动机中而不受干扰。 通过将单个流动流分成四个单独的喷嘴,长度与直径比率的增加导致较少的气流散度和更有针对性的喷雾。

    Lubricating system for engine
    402.
    发明授权
    Lubricating system for engine 失效
    发动机润滑系统

    公开(公告)号:US5511523A

    公开(公告)日:1996-04-30

    申请号:US276953

    申请日:1994-07-19

    Inventor: Tatsuyuki Masuda

    Abstract: An improved lubrication system for a two-stroke engine having a lubrication path from an oil sump directly to an induction valve assembly for noise reduction. The oil sump is divided into two chambers with a restricted passage therebetween to ensure lubrication of transmission gears upon startup while reducing drag during operation. A cross-drilled lubrication passage through each crankshaft throw terminates in a second passage proximate a dead-end plug, the second passage being in communication with the piston rod bearing. Each piston skirt includes at least one axial groove in registration with an oil supply passage. Circumferential grooves distribute the oil around the piston skirt from the axial grooves. The pistons may include ceramic top layers for heat insulation to increase the compression ratio possible by raising the ring positions. The engine incorporates an air/oil mixture separator within a balancer shaft chamber and air from the chamber is directed to the intake system.

    Abstract translation: 一种用于二冲程发动机的改进的润滑系统,其具有从油底壳直接到用于降噪的进气阀组件的润滑路径。 油槽被分成两个腔室,其间具有限制的通道,以确保在启动时润滑传动齿轮,同时减少操作中的阻力。 通过每个曲轴喷头的交叉钻孔润滑通道终止在靠近死端塞的第二通道中,第二通道与活塞杆轴承连通。 每个活塞裙部包括与供油通道对准的至少一个轴向凹槽。 环形槽从轴向凹槽分布在活塞裙部周围的油。 活塞可以包括用于隔热的陶瓷顶层,以通过提高环位置来增加可能的压缩比。 发动机在平衡器轴室内并入空气/油混合物分离器,并且来自腔室的空气被引导到进气系统。

    Enhanced Co-based alloy
    404.
    发明授权
    Enhanced Co-based alloy 失效
    增强型Co基合金

    公开(公告)号:US5422072A

    公开(公告)日:1995-06-06

    申请号:US170384

    申请日:1993-12-20

    CPC classification number: C03B37/047 C22C19/07 F05B2280/10 F05C2201/0448

    Abstract: A Co-based alloy exhibits superior high-temperature strength and resistance properties. In one embodiment, the Co-based alloy contains, in weight percent, from about 0.1 to about 1.2 of C; from about 0.01 to about 2 of at least one of Si and Mn; from about 22 to about 37 of Cr; from about 5 to about 15 of Ni; from about 0.1 to about 3.5 of Re; with a balance being Co and incidental impurities. Co and C, Si, Mn, Cr, Ni, Re, B, Zr, W, Mo, Ta, and Nb impart high-temperature wear resistance to the alloy to withstand repeated temperature cycling in a glass spinnaret. In one embodiment of the present invention, Hf is added to improve molten glass corrosion resistance, while Y and other rare earth elements are added in alternate embodiments to improve high-temperature oxidation resistance. Percentages by weight are disclosed for enhanced high-temperature oxidation resistance, increased fluid wear resistance and enhanced molten glass corrosion resistance.

    Abstract translation: Co基合金表现出优异的高温强度和电阻性能。 在一个实施方案中,Co基合金以重量百分比含有约0.1至约1.2的C; 约0.01至约2个Si和Mn中的至少一种; 从约22至约37的Cr; 约5至约15的Ni; 约0.1至约3.5的Re; 余量为Co和杂质。 Co和C,Si,Mn,Cr,Ni,Re,B,Zr,W,Mo,Ta和Nb赋予合金耐高温耐磨性,以耐受玻璃纺丝轮中的反复温度循环。 在本发明的一个实施方案中,为了提高熔融玻璃的耐腐蚀性,添加了Hf,而在替代实施方案中添加了Y和其它稀土元素以改善耐高温抗氧化性。 公开了重量百分比以提高高温抗氧化性,提高流体耐磨性和提高熔融玻璃耐腐蚀性。

    Rotor for oil pump made of aluminum alloy and method of manufacturing
the same
    405.
    发明授权
    Rotor for oil pump made of aluminum alloy and method of manufacturing the same 失效
    铝合金油泵转子及其制造方法

    公开(公告)号:US5368629A

    公开(公告)日:1994-11-29

    申请号:US949646

    申请日:1992-12-03

    Abstract: The rapidly solidified aluminum alloy powder is preformed in a cold or warm environment to form a powder compact having a relative density of 75-93%. Then, the preformed compact is heated and degassed in the atmosphere of an inert gas at temperature of 300.degree. C. to 560.degree. C. for 0.25-3 hours. Immediately thereafter, the compact is subjected to hot coining at 300.degree.-560.degree. C. to obtain a solidified compact having pores at a rate of 2-5%. The solidified compact is then subjected to sizing. Since the inorganic gas prevents reaction between the evaporated water and aluminum while preheating the compact, the hot coining can be carried out in a state where solid state diffusion easily occurs. Thus, the powder particles can be bonded together strongly with a single forging. Also, at the end of hot coining, pores remain in the solidified compact at the rate of 2-5%. Utilizing these pores, the compact can be subjected to sizing to improve its dimensional accuracy. The rotor for an oil pump thus formed can withstand use at high temperatures.

    Abstract translation: PCT No.PCT / JP92 / 00414 Sec。 371日期1992年12月3日 102(e)日期1992年12月3日PCT提交1992年4月3日PCT公布。 出版物WO92 / 17302 日期:1992年10月15日。快速凝固的铝合金粉末在寒冷或温暖的环境中预成型,形成相对密度为75-93%的粉末压块。 然后,将预成型体在惰性气体气氛中在300〜560℃的温度下加热脱气0.25-3小时。 紧接着,将该压坯在300-560℃进行热压制,得到具有2-5%孔隙的凝固成形体。 然后对凝固的压坯进行上浆。 由于无机气体可以防止蒸发水和铝之间的反应,同时预热压块,所以热固化可以在容易发生固态扩散的状态下进行。 因此,粉末颗粒可以用单次锻造牢固地结合在一起。 此外,在热压制结束时,孔中以2-5%的速率保留在固化的压块中。 利用这些孔,可以对压块进行施胶以提高其尺寸精度。 用于这样形成的油泵的转子可以在高温下经受住使用。

    Piston assembly having a wrist pin bolted therein
    407.
    发明授权
    Piston assembly having a wrist pin bolted therein 失效
    具有螺栓固定在其中的腕销的活塞组件

    公开(公告)号:US5307732A

    公开(公告)日:1994-05-03

    申请号:US829029

    申请日:1991-11-29

    Abstract: The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod have excessive weight and structural components, and requires more complex machining techniques and tooling. The present invention overcomes these problem by providing a piston assembly (30) with a wrist pin (36) attached to a piston member (32). Thus, the length of the leg members (80) are short and do not require a portion surrounding the wrist pin (36). The results being reduced piston member (32) and piston assembly (30) weight and lower inertia, a simplified forging or casting process, a more easily machinable cavity (86) within the piston member (32) and a higher quality piston assembly (30).

    Abstract translation: PCT No.PCT / US91 / 08887 371日期:1991年11月29日 102(e)1991年11月29日PCT 1991年11月29日PCT。1991年11月29日,具有螺栓连接到连杆上的腕针的过去活塞组件的设计和结构具有过大的重量和结构部件,并且需要更复杂的加工技术和加工 。 本发明通过提供具有附接到活塞构件(32)的腕销(36)的活塞组件(30)来克服这些问题。 因此,腿部件(80)的长度较短,并且不需要围绕腕销(36)的部分。 结果是活塞构件(32)和活塞组件(30)的重量和较低的惯性减小,简化的锻造或铸造工艺,活塞构件(32)内更容易加工的空腔(86)和更高质量的活塞组件(30) )。

    Piston for internal combustion engines and like machines
    408.
    发明授权
    Piston for internal combustion engines and like machines 失效
    内燃机和类似机器的活塞

    公开(公告)号:US5305684A

    公开(公告)日:1994-04-26

    申请号:US989497

    申请日:1992-12-10

    Inventor: Jean F. Melchior

    Abstract: A piston for a combustion engine includes an external cylindrical body having an inner cavity. In the inner cavity is a partly spherical little-end of a connecting rod and a fluidtight shell or hemispherical dome. An edge portion of the dome is annularly connected a lower part of the cylindrical body so that the shell or dome bears on the little-end along a closed circular contact line or band during rest or minimum pressure parts of the cycle of operation. Oil is supplied under pressure and through a check valve to into an interstice between the little-end and the shell above the contact line. An upper incompressible space is provided between an outer surface of the shell and the cavity. The shell is maintained taut in operation between the little-end and an annular zone by which the edge portion is connected to the lower part of the cylindrical body. The shell is sufficiently thick but resilient to ensure that the shell is capable 1) of transmitting to the little-end the forces exerted by the working gas on the piston through the annular zone, and 2) of deforming under a tension resulting from these same forces, so that the volume of the interstice is cyclically reduced and the area of the contact band increases.

    Abstract translation: 内燃机的活塞包括具有内腔的外筒体。 在内腔中是连杆的部分球形的小端部和流体密封的壳体或半球形的圆顶。 圆顶的边缘部分环形地连接在圆柱体的下部,使得外壳或圆顶在操作循环的休息或最小压力部分期间沿着封闭的圆形接触线或带承载在小端。 油在压力下通过止回阀供应到接触线上方的小端和壳体之间的空隙中。 在外壳的外表面和空腔之间提供上部不可压缩空间。 壳体在小端和环形区域之间的操作中保持紧固,通过该环形区域,边缘部分连接到圆柱体的下部。 壳体足够厚但具有弹性,以确保壳体能够通过环形区域向小端传递由工作气体施加在活塞上的力,以及2)在由此产生的张力下变形 力,使得空隙的体积循环减小,并且接触带的面积增加。

    Pin plugs for use in a piston assembly
    409.
    发明授权
    Pin plugs for use in a piston assembly 失效
    用于活塞组件的销塞

    公开(公告)号:US5289758A

    公开(公告)日:1994-03-01

    申请号:US878591

    申请日:1992-05-05

    Abstract: The design and construction of past piston assemblies having a wrist pin retained by a pair of snap rings positioned in a groove. Other past piston assemblies have a stubpin or cap positioned within a bore of a piston member or the wrist pin. In these applications the stubpin or cap is in continuous contact along the interface between the bore and the stubpin or cap. The present invention provides a device for retaining a wrist pin within a pair of bores of a piston member during operation of an engine. The device includes a shank portion having an outer portion thereon and only the outer portion of the shank portion being in contact with an inner surface of the wrist pin. The device and the wrist pin forming a wrist pin assembly. Thus, the device remains positioned within the inner surface and properly positioned the wrist pin assembly within the bores during operation of an engine within a bore of a cylinder liner. This configuration also increases the contact area between the wrist pin and the piston member increasing the life and dependability of the engine.

    Abstract translation: 过去的活塞组件的设计和构造具有由定位在槽中的一对卡环保持的腕销。 其他过去的活塞组件具有定位在活塞构件或手腕销的孔内的栓或盖。 在这些应用中,支柱或盖沿着孔和支柱或盖之间的界面连续接触。 本发明提供了一种用于在发动机操作期间将腕销保持在活塞构件的一对孔内的装置。 该装置包括一个在其上具有外部部分的柄部分,并且只有该柄部分的外部部分与该腕针的内表面相接触。 该装置和腕针形成一个腕针组件。 因此,在发动机在气缸套的孔内操作期间,装置保持定位在内表面内并且将腕销组件适当地定位在孔内。 这种构造还增加了腕针和活塞构件之间的接触面积,增加了发动机的寿命和可靠性。

Patent Agency Ranking