Variable valve gear for internal combustion engine
    1.
    发明授权
    Variable valve gear for internal combustion engine 有权
    内燃机用可变气门齿轮

    公开(公告)号:US08205585B2

    公开(公告)日:2012-06-26

    申请号:US12615853

    申请日:2009-11-10

    IPC分类号: F01L1/34

    摘要: In a variable valve gear for an internal combustion engine provided with a camshaft phase change mechanism for variably controlling opening and closing timings of an intake valve, the camshaft phase change mechanism and a variable valve lift mechanism are controlled so that the closing timing of the intake valve is advanced beyond a predetermined range T1 including a bottom dead center when a load L of the internal combustion engine is less than a first predetermined value L1 and that the closing timing of the intake valve is delayed beyond the predetermined range T1 when the load L of the internal combustion engine is not less than the first predetermined value L1.

    摘要翻译: 在具有用于可变地控制进气门的打开和关闭定时的凸轮轴相变机构的内燃机的可变气门齿轮中,控制凸轮轴相变机构和可变气门升程机构,使得进气口的关闭正时 当内燃机的负载L小于第一预定值L1时,阀门超前于包括下死点的预定范围T1,并且当负载L被调节时,进气门的关闭正时延迟超过预定范围T1 的内燃机不小于第一预定值L1。

    Cylinder head for an in-cylinder injection spark-ignition type internal
combustion engine
    4.
    发明授权
    Cylinder head for an in-cylinder injection spark-ignition type internal combustion engine 失效
    用于缸内喷射火花点火式内燃机的气缸盖

    公开(公告)号:US5816215A

    公开(公告)日:1998-10-06

    申请号:US790890

    申请日:1997-01-29

    摘要: A cylinder head for an in-cylinder injection spark-ignition type internal combustion engine is formed with an injection passage for providing communication between a fuel injection valve and a combustion chamber. The injection passage includes a first and second passage sections disposed on the fuel injection valve side and on the combustion chamber side. The first passage section is formed, for example, into a truncated cone shape or a right circular cylindrical shape so that the cross sectional area decreases toward the fuel injection valve side or the area is constant over its entire length. The second passage section is formed to have the cross sectional area which increases toward the combustion chamber side. The fuel injected from the fuel injection valve flows into the combustion chamber via the injection passage having a gradually increasing cross sectional area, so that turbulence of fuel spray due to sudden divergent flow does not occur, resulting in an improved fuel combustion efficiency. Also, a seal seating face is formed on the inner face of the first passage section. By using a seal jig having a shape complementary to the seal seating face, a pressure leak test of cylinder head and a fuel leak test of fuel system can be achieved reliably and easily.

    摘要翻译: 用于缸内喷射火花点火式内燃机的气缸盖形成有用于在燃料喷射阀和燃烧室之间提供连通的喷射通道。 喷射通道包括设置在燃料喷射阀侧和燃烧室侧的第一和第二通道部分。 第一通道部分形成为例如截头圆锥形或右圆柱形,使得横截面积朝向燃料喷射阀侧减小,或者该区域在整个长度上是恒定的。 第二通道部分形成为具有朝向燃烧室侧增加的横截面面积。 从燃料喷射阀喷射的燃料经由具有逐渐增加的横截面积的喷射通道流入燃烧室,从而不会发生由于突然的流动引起的燃料喷雾的紊流,从而提高了燃料燃烧效率。 此外,在第一通道部分的内表面上形成密封座。 通过使用具有与密封座面互补的形状的密封夹具,可以可靠且容易地实现气缸盖的压力泄漏试验和燃料系统的燃料泄漏试验。

    Internal combustion engine
    5.
    发明授权
    Internal combustion engine 失效
    内燃机

    公开(公告)号:US5762042A

    公开(公告)日:1998-06-09

    申请号:US808432

    申请日:1997-02-28

    摘要: An internal combustion engine includes a cylinder head having a pair of upright intake ports formed therein on opposite sides of a plug hole extending along a cylinder axis, and each intake port has an upstream-side upright part extending from the top face of the cylinder head along the cylinder axis and a downstream-side slanting part having an intake opening communicating with a combustion chamber on one side of an imaginary plane containing the cylinder axis. An upper opening of each intake port opening in the top face of the cylinder head has a peripheral edge extending along the peripheral edge of an upper opening of the plug hole, and the peripheral edge of the upstream-side upright part extends along the outer surface of a lash adjuster. When viewed in vertical section along the imaginary plane, the upstream-side upright part extends obliquely downward from the top face of the cylinder head in a direction away from the lash adjuster, and the downstream-side slanting part approaches the plug hole with decrease in distance to the combustion chamber and then extends parallel to the plug hole. The downstream-side slanting part, when viewed in vertical section perpendicular to the imaginary plane, extends away from the cylinder axis with decrease in distance to the intake opening. With the intake ports having the above overall shape and sectional shape, each intake port can be given a required cross-sectional area without increasing the dimensions of the engine, and makes it possible to form a proper intake air flow inside the combustion chamber.

    摘要翻译: 一种内燃机,具有:气缸盖,其具有沿着气缸轴线延伸的塞孔的相对侧形成的一对直立进气口,每个进气口具有从气缸盖的顶面延伸的上游侧直立部 沿着气缸轴线和具有与包含气缸轴线的假想平面的一侧上的燃烧室连通的进气口的下游侧倾斜部件。 在气缸盖的上表面中的每个进气口开口的上开口具有沿着插塞孔的上开口的周缘延伸的周边边缘,并且上游侧直立部的周缘沿着外表面延伸 的间隙调节器。 当沿着假想平面的垂直截面观察时,上游侧立柱部分从气缸盖的上表面向远离间隙调节器的方向倾斜向下延伸,并且下游侧倾斜部分随着减小 到燃烧室的距离,然后平行于插塞孔延伸。 当垂直于假想平面的垂直截面观察时,下游侧倾斜部分随着与进气口的距离减小而远离气缸轴线延伸。 在进气口具有上述整体形状和截面形状的情况下,每个进气口可以被赋予所需的横截面面积,而不增加发动机的尺寸,并且可以在燃烧室内形成适当的进气流。

    METHOD AND DEVICE FOR PRODUCING SYNTHETIC GAS AND METHOD AND DEVICE FOR SYNTHESIZING LIQUID FUEL
    10.
    发明申请
    METHOD AND DEVICE FOR PRODUCING SYNTHETIC GAS AND METHOD AND DEVICE FOR SYNTHESIZING LIQUID FUEL 审中-公开
    用于生产合成气的方法和装置以及用于合成液体燃料的方法和装置

    公开(公告)号:US20150005399A1

    公开(公告)日:2015-01-01

    申请号:US14367188

    申请日:2012-11-29

    IPC分类号: C01B3/32 C07C29/151 C07C1/04

    摘要: A method for producing synthetic gas with which a virtually soot-free synthetic gas having a good composition can be efficiently obtained by a simple device using a liquid biofuel as the starting material, and it is thereby possible to produce a high-quality liquid fuel such as methanol, gasoline or kerosene. Steam and a liquid biofuel produced by pyrolysis of a biomass are fed to the gasification space inside a reactor tube that is not loaded with a catalyst inside the reactor tube and heated to 800 to 1,200° C. from the outside via the reactor tube walls to induce an endothermic reaction and thereby a steam reforming chemical reaction between the steam and the liquid biofuel. By setting the molar ratio of the fed steam and carbon in the liquid biofuel ([H2O]/[C]) at 0.3 or higher, a synthetic gas having a good composition that is virtually free of tar and soot and is primarily H2 and CO is obtained.

    摘要翻译: 通过使用液体生物燃料作为起始原料的简单装置,可以有效地获得具有良好组成的实质上不含烟灰的合成气体的合成气体的制造方法,由此,能够制造高质量的液体燃料, 作为甲醇,汽油或煤油。 蒸汽和通过生物质的热解产生的液体生物燃料被供给到反应器管内的气化空间,反应器管内未装载催化剂,并通过反应器管壁从外部加热至800-1200℃ 引起吸热反应,从而引起蒸汽和液体生物燃料之间的蒸汽重整化学反应。 通过将液体生物燃料([H2O] / [C])中的进料蒸汽和碳的摩尔比设定在0.3以上,具有实质上不含焦油和烟灰的良好组成的合成气体,主要是H 2和CO 获得。