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    • 24. 发明申请
    • Variable valve train for a cam-activated lifting valve of an internal combustion engine
    • 用于内燃机凸轮启动提升阀的可变气门机构
    • US20040050352A1
    • 2004-03-18
    • US10624592
    • 2003-07-23
    • Thomas KammerdienerPeter HerzogPeter Christian Meurer
    • F01L001/34F01L001/02F01L001/14
    • F01L9/02F01L1/143F01L13/0031F01L2013/0089F02B1/12
    • The invention relates to a variable valve train (1) for a cam-actuated lifting valve (13) of an internal combustion engine, which valve (13) is loaded by a closing spring (13a) acting against the direction of opening, with an approximately cylindrical force application element (2) located between a cam (14) and the valve (13), whose length can be adjusted hydraulically and whose exterior cylindrical wall face (3) is slidable in a fixed guide cylinder (4), said element (2) being provided with a pressure piston (6) longitudinally slidable in a cylinder (5), which piston (6) is adjacent to a pressure chamber (7) into which opens a pressure channel (8) departing from a port (9) in the wall face (3) of the force application element (2), a fixed pressure line (11) opening into the guide cylinder (4) in the area of the port (9), which line (11) can be subjected to hydraulic high pressure (pH) permitting hydraulic activation of the valve (13). In order to obtain a variable valve train (1) independet of crank angle (KW) in as simple a manner as possible, a permanent flow connection is provided between pressure line (11) and pressure channel (8) independently of the position of the force application element (2).
    • 本发明涉及一种用于内燃机的凸轮驱动的提升阀(13)的可变气门机构(1),所述可变气门机构(1)由通过打开方向作用的闭合弹簧(13a)装载, 位于凸轮(14)和阀(13)之间的大致圆柱形的施力元件(2),其长度可以液压地调节,并且其外圆柱形壁面(3)可在固定导向缸(4)中滑动,所述元件 (2)设置有可在气缸(5)中纵向滑动的压力活塞(6),所述活塞(6)邻近压力室(7),压力通道(8)从口(9) )在压力施加元件(2)的壁面(3)中的固定压力线(11),在该端口(9)的区域中通向引导筒(4)的固定压力线(11),该管线(11) 以允许阀(13)的液压活化的液压高压(pH)。 为了以尽可能简单的方式获得独立于曲轴角度(KW)的可变气门机构(1),在压力管线(11)和压力通道(8)之间提供永久流动连接,独立于 力施加元件(2)。
    • 26. 发明授权
    • Control system and control method for diesel engine
    • 柴油机控制系统及控制方法
    • US06209516B1
    • 2001-04-03
    • US09428232
    • 1999-10-27
    • Masayuki Yamashita
    • Masayuki Yamashita
    • F01L1300
    • F02D13/0234F01L1/34F01L2013/0089F02B1/12F02B3/06F02B2275/18F02D13/0269F02D15/04F02D41/3035F02D41/401F02D2013/0292F02D2041/389Y02T10/12Y02T10/128Y02T10/142Y02T10/18Y02T10/44
    • A control system for a compression ignition type diesel engine includes an operating state detecting unit for detecting the operating state of the diesel engine. A combustion mode selecting unit selects, in correspondence with the output of the operating state detecting unit, a first combustion mode, wherein fuel injection is carried out in the first half of the compression stroke, or a second combustion mode, wherein fuel injection is carried out at around compression top dead center. An effective compression ratio varying unit varies the effective compression ratio of the diesel engine and a control unit controls the effective compression ratio varying unit to lower the effective compression ratio when the first combustion mode is selected by the combustion mode selecting unit compared to when the second combustion mode is selected. When the first combustion mode is selected by the combustion mode selecting unit, by fuel injection being carried out in the first half of the compression stroke and the effective compression ratio being lowered so that compression ignition occurs at around compression top dead center, a uniform highly diffuse premix combustion can be realized. When the second combustion mode is selected by the combustion mode selecting unit, by fuel injection being carried out at compression top dead center and ignition occurring at around compression top dead center substantially simultaneously with fuel injection, without the effective compression ratio being lowered, diffusion combustion is realized.
    • 用于压燃式柴油机的控制系统包括用于检测柴油发动机的运行状态的运行状态检测单元。 燃烧模式选择单元与操作状态检测单元的输出相对应地选择在压缩冲程的前半部分执行燃料喷射的第一燃烧模式或其中进行燃料喷射的第二燃烧模式 在压缩上死点附近。 有效压缩比可变单元改变柴油发动机的有效压缩比,并且当燃烧模式选择单元选择第一燃烧模式时,控制单元控制有效压缩比变化单元以降低有效压缩比,与第二 选择燃烧模式。 当通过燃烧模式选择单元选择第一燃烧模式时,通过在压缩冲程的前半部分中执行燃料喷射并降低有效压缩比,使得在压缩上止点附近发生压缩点火,均匀高度 弥散预混燃烧可以实现。 当通过燃烧模式选择单元选择第二燃烧模式时,通过在压缩上止点进行燃料喷射和基本上与燃料喷射同时发生在压缩上止点附近的点火,而没有有效压缩比降低,扩散燃烧 实现了。
    • 27. 发明授权
    • Engine valve control apparatus
    • 发动机气门控制装置
    • US4870930A
    • 1989-10-03
    • US196713
    • 1988-05-20
    • Toru Yagi
    • Toru Yagi
    • F01L1/16F01L9/04F01L13/00F02B29/08
    • F01L13/0015F01L1/16F01L9/04F01L2013/0089F01L2820/031
    • Control apparatus for an intake valve and/or an exhaust valve which are slidably mounted for reciprocating movement relative to a valve seat in a cylinder head including an electromagnetic solenoid fixed to the cylinder head and a magnetic pole fixed to at least one of the valves with the magnetic pole opposing the solenoid with a small gap therebetween when the valve(s) is in the open position and a control device for supplying electric current to the electromagnetic solenoid in a predetermined manner responsive to engine operation conditions. The valve(s) is moved to the open position by a cam, electric current is supplied to the electromagnetic solenoid to hold the valve(s) in the open position for a predetermined time and the valve(s) is closed by a return spring when the electromagnetic solenoid is deenergized.
    • 用于进气阀和/或排气阀的控制装置,其可滑动地安装成相对于包括固定到气缸盖的电磁螺线管的气缸盖中的阀座往复运动,以及固定到至少一个阀的磁极, 当所述阀处于打开位置时,与所述螺线管相对的间隔小的磁极和用于以预定方式响应于发动机运行条件向所述电磁螺线管供给电流的控制装置。 阀通过凸轮移动到打开位置,电流被供应到电磁螺线管,以将阀保持在打开位置预定时间,并且阀由复位弹簧 当电磁螺线管断电时。