Internal combustion engine with reduced noise and heat emissions
    611.
    发明授权
    Internal combustion engine with reduced noise and heat emissions 失效
    具有减少噪音和热量排放的内燃机

    公开(公告)号:US4715335A

    公开(公告)日:1987-12-29

    申请号:US710864

    申请日:1985-03-12

    Abstract: There is disclosed an internal combustion engine with reduced emission of sound, heat and harmful substances. The characteristics of an air-cooled engine are optimized as a result of withdrawal of heat by oil in uniform distribution along the entire peripheries of the cylinders. For this purpose, there was developed a lower piston portion which effects uniform distribution of cooling oil along the periphery. The external cooling is improved in that the entire periphery of each free-standing cylinder is provided with a recessed ring-shaped oil guide and in that the free-standing cylinders are located in a common chamber which is cooled by oil sprays. More pronounced uniformity of such cooling action along the entire periphery of each cylinder allows for the selection of a higher temperature level of the cylinders which is important for combustion of vegetable oils in lieu of mineral oil products. At the same time, the above construction strives to accomplish the object of improving the power density and running characteristics of a diesel engine.

    Abstract translation: 公开了一种具有减少声,热和有害物质排放的内燃机。 空气冷却发动机的特点是由于油沿着气缸的整个外周均匀分布而引起的热量而被优化。 为此,开发了一种下部活塞部分,其沿着周边均匀分布冷却油。 改进了外部冷却,因为每个独立圆筒的整个周边设置有凹入的环形导油器,并且独立的气缸位于通过喷油器冷却的公共室中。 沿着每个气缸的整个周边的这种冷却作用的更明显的均匀性允许选择对于植物油代替矿物油产品的燃烧很重要的气缸的较高温度水平。 同时,上述结构力求实现柴油机功率密度和运行特性的提高。

    Plunger piston for internal combustion engines
    612.
    发明授权
    Plunger piston for internal combustion engines 失效
    内燃机用柱塞活塞

    公开(公告)号:US4704950A

    公开(公告)日:1987-11-10

    申请号:US15317

    申请日:1987-02-17

    Abstract: An extremely light and low friction plunger piston for internal combustion engines, particularly Otto-type engines for private cars. The piston has the following ratios and dimensions(H/D)=0.20-0.35(T/D)=0.22-0.38(A/D)=0.15-0.25(B/D)=(A/D)whereinD=piston diameterH=compression height between a top of the head and the gudgeon pin bore axisT=distance from the radially outer boss faces to the piston axisA=axial skirt dimension below annular groove nearest the pin bore axis at a peripheral zone of the skirt extending over an angle .alpha. of 15 to 60 degrees to either side of a connecting rod oscillating planeB=axial skirt dimension below said annular groove in a direction along said gudgeon pin axis;and further wherein the distal end of the skirt is reduced radially over an axial dimension of 10-25% of an axial length of the skirt in said direction along said gudgeon pin axis, said distal end being reduced at its edge by 0.01-0.15 mm.

    Abstract translation: 用于内燃机的极轻和低摩擦柱塞活塞,特别是用于私家车的奥托型发动机。 活塞具有以下比例和尺寸(H / D)= 0.20-0.35(T / D)= 0.22-0.38(A / D)= 0.15-0.25(B / D)=(A / D) 直径H =头部顶部和舵杆孔径轴线之间的压缩高度T =从径向外部凸台面到活塞轴线A的距离A =在裙部周边区域最靠近销孔轴线的环形槽下方的轴向裙部尺寸 在连接杆振荡平面B的任一侧上的角度α为15度至60度; B为沿着所述舵杆轴线的方向在所述环形槽下方的轴向裙部尺寸; 并且进一步其中所述裙部的远端在所述方向上沿着所述舵头销轴线在所述裙部的轴向长度的10-25%的轴向尺寸上径向减小,所述远端在其边缘处被减小0.01-0.15mm 。

    Light metal alloy piston
    615.
    发明授权
    Light metal alloy piston 失效
    轻金属合金活塞

    公开(公告)号:US4669367A

    公开(公告)日:1987-06-02

    申请号:US843626

    申请日:1986-03-25

    Abstract: A light metal alloy cast piston including a thermal strut (32, 48, 52) arranged in a shoulder portion of the piston skirt. The thermal strut is composed of an annular fiber-reinforced metal portion in which high-tensile-strength reinforcing fibers are integrally molded. The reinforcing fibers include first fibers (34), such as carbon fibers, having a coefficient of linear expansion substantially smaller than that of the matrix metal alloy, and second fibers (36), such as silicon carbide fibers and alumina fibers, having a flexural or bending strength larger than that of the first fibers. The first fibers primarily serve to restrain thermal expansion of the piston skirt and the second fibers, having a larger bending strength, act to protect the first fibers from excessive bending forces. In a preferred embodiment, the first fibers are located in the inner region of the thermal strut and the second fibers are arranged in the outer region.

    Abstract translation: 一种轻金属合金铸造活塞,其包括布置在活塞裙部的肩部中的热支柱(32,48,52)。 热支柱由高强度增强纤维整体模制的环形纤维增强金属部分组成。 增强纤维包括具有比基体金属合金基本上小的线膨胀系数的第一纤维(34),例如碳纤维,以及具有挠曲的第二纤维(36),例如碳化硅纤维和氧化铝纤维 或弯曲强度大于第一纤维的弯曲强度。 主要用于抑制活塞裙部的热膨胀的第一纤维和具有较大弯曲强度的第二纤维用于保护第一纤维免受过度的弯曲力。 在优选实施例中,第一纤维位于热支柱的内部区域中,第二纤维布置在外部区域中。

    Aluminum plunger piston with thermal expansion regulating strip, for
internal combustion engines
    616.
    发明授权
    Aluminum plunger piston with thermal expansion regulating strip, for internal combustion engines 失效
    铝制柱塞活塞带热膨胀调节条,用于内燃机

    公开(公告)号:US4669366A

    公开(公告)日:1987-06-02

    申请号:US760929

    申请日:1985-07-31

    Abstract: In a plunger piston for internal combustion engines, having a regulating strip in the piston body, the regulating strip is arranged in the axial middle third of the height of the piston body and the regulating effect is designed so that the piston body possesses its narrowest installation play uniformly at the level of the regulating strip equally in the cold installation state and in the engine operation. Above and below this region with minimum installation play the piston body possesses spherically retracted end regions at its upper and lower ends for the generation of hydrodynamic lubricant oil wedges.

    Abstract translation: 在用于内燃机的柱塞活塞中,在活塞体中具有调节带,调节带布置在活塞体的高度的三分之一的轴向中心处,并且调节效果被设计成使得活塞体具有最窄的安装 在冷装置状态和发动机运转中均匀地均匀地在调节带的水平面上均匀地起作用。 在该区域的上方和下方,在最小安装时,活塞体在其上端和下端具有球形缩回的端部区域,用于产生流体动力润滑油楔。

    Piston for internal combustion engine
    617.
    发明授权
    Piston for internal combustion engine 失效
    内燃机活塞

    公开(公告)号:US4617887A

    公开(公告)日:1986-10-21

    申请号:US718050

    申请日:1985-03-29

    Abstract: A piston for an internal combustion engine is disclosed which comprises a piston main body having an opening in the top surface thereof and a cavity forming member having a combustion chamber form the top surface thereof which is mounted in the opening of the piston main body. The diameter of the cavity forming member is less then the diameter of the piston main body and the top surface of the cavity forming member is in alignment with the top surface of the piston main body. A piston pin is mounted in the piston main body and the cavity forming member is supported by the piston pin. Further a connecting rod is connected to the piston pin whereby the connecting rod is coupled to the main piston body.

    Abstract translation: 公开了一种用于内燃机的活塞,其包括在其顶表面中具有开口的活塞主体和形成在其顶表面上的燃烧室的空腔形成构件,其安装在活塞主体的开口中。 空腔形成构件的直径小于活塞主体的直径,并且空腔形成构件的顶表面与活塞主体的顶表面对准。 活塞销安装在活塞主体中,空腔形成构件由活塞销支撑。 此外,连杆连接到活塞销,由此连接杆联接到主活塞体。

    Components for internal combustion engines
    618.
    发明授权
    Components for internal combustion engines 失效
    内燃机配件

    公开(公告)号:US4598675A

    公开(公告)日:1986-07-08

    申请号:US483447

    申请日:1983-04-15

    Inventor: William D. Long

    Abstract: The present invention relates to improvements in internal combustion engines by the utilization of sintered silicon carbide for the fabrication of certain engine components wherein the silicon carbide starting material used to produce the sintered components is in an ultra-fine form. The engine components comprise the valve train and the power assembly. The valve train is comprised of the valve guides, valves, valve caps, rocker arms, valve spring retainer rings, push rods and tappets (lifters). The power assembly is comprised of cylinder lines, valve seats, exhaust port liners, exhaust manifold, flames plates, pistons, piston rings, piston pins and connecting rods.

    Abstract translation: 本发明涉及通过使用烧结碳化硅来制造某些发动机部件的内燃机的改进,其中用于制造烧结部件的碳化硅原料是超细形式。 发动机部件包括气门机构和动力组件。 气门机构包括阀导向器,阀门,阀盖,摇臂,气门弹簧保持环,推杆和挺杆(升降器)。 动力组件由气缸管线,阀座,排气口衬套,排气歧管,火焰板,活塞,活塞环,活塞销和连接杆组成。

    Heat insulated reciprocating component of an internal combustion engine
and method of making same
    619.
    发明授权
    Heat insulated reciprocating component of an internal combustion engine and method of making same 失效
    内燃机的绝热往复式部件及其制造方法

    公开(公告)号:US4590901A

    公开(公告)日:1986-05-27

    申请号:US768533

    申请日:1985-08-22

    Inventor: Howard Mizuhara

    Abstract: A heat insulated reciprocating component, such as a piston or a valve, for an internal combustion engine comprises a main component body and a ceramic member secured to the body by interference fit with a metal connector which is brazed to the body. In one embodiment, the main body of a piston has an outwardly opening cavity, a ceramic member in the cavity having an annular groove, and a ring seated in the groove and brazed to side of the cavity. In another embodiment, the combustion wall defining face of the valve has a ceramic member mounted thereon, and metal ring in overlapping engagement with the periphery of the member and brazed to the body of the valve. The invention also comprehends the method of making such a component by applying a metal ring in overlapping engagement with the periphery of a ceramic member, mounting a brazing alloy shim on the ring, assembling these parts on the combustion chamber end of the component, and brazing the ring to the component.

    Abstract translation: 用于内燃机的绝热往复运动部件,例如活塞或阀,包括主体部件本体和陶瓷部件,该主体部件主体和陶瓷部件通过与钎焊到主体上的金属连接器的过盈配合而固定到主体。 在一个实施例中,活塞的主体具有向外的开口空腔,空腔中的陶瓷构件具有环形凹槽,以及位于凹槽中并且钎焊到空腔侧面的环。 在另一个实施例中,阀的燃烧壁限定面具有安装在其上的陶瓷构件,金属环与构件的周边重叠接合并钎焊到阀体上。 本发明还通过将金属环与陶瓷构件的周边重叠接合,将钎焊合金垫片安装在环上,将这些部件组装在部件的燃烧室端部上并钎焊而形成这种部件的方法 环到组件。

    Liquid-cooled composite piston for internal combustion engines
    620.
    发明授权
    Liquid-cooled composite piston for internal combustion engines 失效
    用于内燃机的液冷复合活塞

    公开(公告)号:US4587932A

    公开(公告)日:1986-05-13

    申请号:US695999

    申请日:1985-01-29

    Applicant: Horst Moebus

    Inventor: Horst Moebus

    CPC classification number: F02F3/0023 F02F3/22 F05C2201/021 F05C2201/0448

    Abstract: A composite piston for internal combustion engines has an interior cooling chamber and an outer cooling passage. An annular rib protrudes from the inside surface of the upper part and that surface of the lower part which faces that annular rib. An annular flange is clamped between said rib and said surface of the lower part. A tongue which protrudes into the cooling passage is provided on that edge of said flange which faces the cooling passage. In order to minimize the temperature of that surface of the cooling passage which is near the combustion chamber and to maintain at least adjacent to the uppermost ring groove a temperature which is sufficient to prevent a wet corrosion of the piston and of the piston rings, the tongue defines a relatively narrow annular gap with that surface of the cooling passage which is near the combustion chamber so that the coolant oil is throttled as it flows through that gap.

    Abstract translation: 用于内燃机的复合活塞具有内部冷却室和外部冷却通道。 环形肋从上部的内表面和面向该环形肋的下部的表面突出。 环形凸缘被夹紧在所述肋和下部的所述表面之间。 突出到冷却通道中的舌片设置在所述凸缘的面向冷却通道的边缘上。 为了最小化靠近燃烧室的冷却通道的表面的温度并且至少保持与最上面的环槽相邻的温度足以防止活塞和活塞环的湿腐蚀, 舌部限定了与燃烧室附近的冷却通道的表面相对窄的环形间隙,使得冷却油在流过该间隙时被节流。

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