Method for side-chain alkylation or alkenylation
    82.
    发明授权
    Method for side-chain alkylation or alkenylation 失效
    侧链烷基化或烯基化方法

    公开(公告)号:US06984766B2

    公开(公告)日:2006-01-10

    申请号:US10344519

    申请日:2001-08-10

    IPC分类号: C07C2/68

    摘要: In a process for reducing the formation of polymers during side-chain alkylation or side-chain alkenylation of alkylaromatic compounds by reaction with olefins or diolefins in the presence of an alkali metal catalyst followed by distillation in order to isolate the alkylated or alkenylated compound, the alkali metal is present in the catalyst on an inorganic support, and the catalyst is mechanically separated from the reaction mixture after the reaction and before the distillation.

    摘要翻译: 在烷基芳族化合物的侧链烷基化或侧链烯基化反应中,在碱金属催化剂的存在下与烯烃或二烯烃反应,然后蒸馏以分离烷基化或烯基化的化合物,在减少聚合物形成的方法中, 碱金属在催化剂中存在于无机载体上,催化剂在反应后和蒸馏之前与反应混合物机械分离。

    Method for producing ethyldimethylamine and triethylamine
    83.
    发明申请
    Method for producing ethyldimethylamine and triethylamine 失效
    乙基二甲基胺和三乙胺的制备方法

    公开(公告)号:US20050154235A1

    公开(公告)日:2005-07-14

    申请号:US10506514

    申请日:2003-03-03

    摘要: The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: (i) reaction of a mixture of diethylamine and dimethylamine with ethylene in the presence of a catalyst from the group of alkali metal dimethylamides, alkali metal diethylamides and alkali metal hydrides (ii) removal of the catalyst (iii) distillation separation of the resulting mixture in triethylamine and ethyldimethylamine and optionally diethylamine and dimethylamine (iv) optional return of the catalyst and of the starting amines to the reaction. The process according to the invention permits the coproduction of ethyldimethylamine and diethylamine in a simple process.

    摘要翻译: 本发明描述了一种用于制备乙基二甲基胺和三乙胺的方法,其步骤如下:(i)二乙胺和二甲基胺的混合物与乙烯在催化剂存在下由碱金属二甲基酰胺,碱金属二乙基酰胺和碱 金属氢化物(ii)除去催化剂(iii)将所得混合物蒸馏分离在三乙胺和乙基二甲胺和任选的二乙胺和二甲胺中(iv)任选地将催化剂和起始胺返回到反应中。 根据本发明的方法允许以简单的方法共同生产乙基二甲胺和二乙胺。

    Method for production of alkali metal dialkylamides
    84.
    发明申请
    Method for production of alkali metal dialkylamides 审中-公开
    碱金属二烷基酰胺的生产方法

    公开(公告)号:US20050038253A1

    公开(公告)日:2005-02-17

    申请号:US10495356

    申请日:2002-11-08

    CPC分类号: C07C209/00 C07C211/65

    摘要: A process for preparing dialkylamides of the alkali metals by reacting the corresponding dialkylamine with the corresponding alkali metal in the presence of an electron-donating substance selected from the group consisting of 1,3-butadiene, isoprene, naphthalene and styrene with formation of small amounts of butenyldialkylamine comprises suspending the corresponding alkali metal in a solvent and subsequently adding dialkylamine and electron-donating substance in such a way that the dialkylamine is present in an amount of up to 45% by weight, preferably up to 25% by, weight, in particular up to 15% by weight, and the butadiene is present in an amount of up to 5% by weight, preferably up to 3% by weight, in particular up to 1.5% by weight.

    摘要翻译: 一种通过使相应的二烷基胺与相应的碱金属在选自1,3-丁二烯,异戊二烯,萘和苯乙烯的给电子物质存在下,形成少量的碱金属制备二烷基酰胺的方法 的丁烯基二烷基胺包括将相应的碱金属悬浮在溶剂中,随后加入二烷基胺和给电子物质,使得二烷基胺以高达45重量%,优选至多25重量%的量存在 特别地高达15重量%,丁二烯的存在量为至多5重量%,优选至多3重量%,特别是至多1.5重量%。

    Method and device for lowering a boost pressure of a turbocharger
    85.
    发明授权
    Method and device for lowering a boost pressure of a turbocharger 失效
    用于降低涡轮增压器的增压压力的方法和装置

    公开(公告)号:US6018948A

    公开(公告)日:2000-02-01

    申请号:US776344

    申请日:1997-03-25

    摘要: A device for lowering boost pressure as a function of a defined setpoint engine torque (MMS) when the setpoint engine torque (MMS) or a setpoint engine performance quantity associated therewith is smaller than a corresponding engine performance quantity (MMFA) that is specified without boost pressure intervention. Thus, all performance quantities which require a specific engine torque are able to be controlled in open or closed loop by lowering boost pressure.

    摘要翻译: PCT No.PCT / DE96 / 00272 Sec。 371日期1997年3月25日 102(e)1997年3月25日PCT PCT 1996年2月22日PCT公布。 WO96 / 37377 PCT公开号 日期1996年11月28日当设定点发动机扭矩(MMS)或与其相关的设定点发动机性能量小于对应的发动机性能量(MMFA)时,降低作为定义的设定点发动机转矩(MMS)的函数的增压压力的装置, 这是指定没有增压压力干预。 因此,需要特定发动机转矩的所有性能数量能够通过降低增压压力来控制在开环或闭环。

    Stereo lambda control
    86.
    发明授权
    Stereo lambda control 失效
    立体声控制

    公开(公告)号:US5267548A

    公开(公告)日:1993-12-07

    申请号:US646607

    申请日:1991-02-04

    CPC分类号: F02D41/1443 F02D41/0042

    摘要: In the method for the adapted precontrol and feedback control of the air/fuel mixtures to be supplied to the two fuel-metering devices of an internal combustion engine, which has two separate exhaust-gas channels with a lambda probe and a catalytic converter in each channel, a common value of the precontrol manipulated variable and a common lambda desired value are determined for both fuel-metering devices. On the other hand, values of a control manipulated variable are determined separately for each fuel-metering device and values of precontrol adaptation variables, which are dependent upon the values of the control manipulated value, are determined and are superposed separately one after the other on the common precontrol value. This method makes it possible to manage with a single device for both cylinder banks which are to be operated in a stereo lambda control.

    摘要翻译: PCT No.PCT / DE89 / 00486 Sec。 371日期1991年2月4日 102(e)1991年2月4日PCT日期1989年7月22日PCT。在用于对内燃机的两个燃料计量装置供应的空气/燃料混合物进行适应的预控制和反馈控制的方法中, 其在每个通道中具有两个具有λ探针和催化转化器的独立废气通道,对于两个燃料计量装置确定预控制操纵变量和公共λ期望值的公共值。 另一方面,对于每个燃料计量装置分别确定控制操作变量的值,并且确定依赖于控制操作值的预控制自适应变量的值,并且逐个地依次重叠 共同的预控价值。 这种方法使得可以使用单个设备来管理要在立体声喇叭控制中操作的两个气缸组。

    Tank-venting arrangement and method for checking the tightness thereof
    87.
    发明授权
    Tank-venting arrangement and method for checking the tightness thereof 失效
    油罐安装方法及其检验方法

    公开(公告)号:US5220896A

    公开(公告)日:1993-06-22

    申请号:US811526

    申请日:1991-12-20

    CPC分类号: B60K15/03504

    摘要: A tank-venting arrangement includes: a tank; an adsorption filter connected to the tank; a tank-venting valve interconnecting the adsorption filter and the intake pipe of the engine; a control unit for driving the tank-venting valve so that it closes or opens; a pressure difference sensor for measuring the pressure difference between the pressure in the tank and the ambient pressure; and, an integrating unit for determining the time integral of the pressure difference. With this tank-venting arrangement, a simple and reliable determination can be made as to when so much fuel vapor should have been adsorbed in the active charcoal filter so that when the tank-venting valve is opened thereafter, a lean correction by means of a lambda controller can be required. If this lean correction is not made, this is an indication that the fuel flowing from the tank has not reached the tank-venting valve so that the tank-venting arrangement leaks or is obstructed.

    摘要翻译: 排气装置包括:罐; 连接到罐的吸附过滤器; 将吸附过滤器与发动机的进气管相连接的排气阀; 控制单元,用于驱动所述排气阀使其关闭或打开; 压力差传感器,用于测量罐中的压力与环境压力之间的压力差; 以及用于确定压力差的时间积分的积分单元。 通过这种排气装置,可以简单可靠地确定当活性炭过滤器吸附多少燃料蒸汽时,当其后打开排气阀时,借助于 可以使用lambda控制器。 如果没有进行精益校正,这表明从罐中流出的燃料没有到达排放阀,以致于排气装置泄漏或被阻塞。

    Tank-venting arrangement and method of operating the same
    88.
    发明授权
    Tank-venting arrangement and method of operating the same 失效
    油罐布置及其运行方法

    公开(公告)号:US5197442A

    公开(公告)日:1993-03-30

    申请号:US811294

    申请日:1991-12-20

    CPC分类号: B60K15/03504 F02M25/0818

    摘要: A tank-venting arrangement includes: a tank having a tank closure; an electrically drivable check valve; an adsorption filter; connecting lines for interconnecting the above components; a difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure and supplies a pressure difference signal; a comparator which, at least for a running engine, compares the pressure difference signal to upper and lower threshold values and supplies an opening signal to the check valve to open the latter when the pressure difference signal is greater than the upper threshold value and a closure signal for closing the check valve when the pressure difference signal drops below the lower threshold value; and, a detector unit which supplies an opening signal to the check valve for opening the check valve when the sensor determines a possible opening of the tank and a closure signal for closing the check valve when the sensor determines a possible closure of the tank. With the aid of the check valve and the difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure, the tank-venting arrangement can be so operated that at least for a running engine, a desired maximum overpressure in the tank can be obtained relative to the ambient pressure independently of the extent of the underpressure in that part of the arrangement forward of the check valve.

    摘要翻译: 排气装置包括:具有罐盖的罐; 电驱动止回阀; 吸附过滤器; 用于连接上述部件的连接线; 差压传感器,其测量罐中的压力与环境压力之间的压力差,并提供压力差信号; 比较器,其至少对于运行的发动机,将压力差信号与上限和下限阈值进行比较,并且当压力差信号大于上限阈值时,向止回阀提供打开信号以打开后者, 当压力差信号下降到低于阈值时关闭止回阀的信号; 以及检测器单元,当传感器确定罐的可能打开时,检测器单元向打开止回阀的打开信号提供打开信号,以及当传感器确定罐可能关闭时关闭止回阀的关闭信号。 借助于止回阀和差压传感器,该差压传感器测量罐中的压力与环境压力之间的压力差,罐排气装置可以如此操作,使得至少对于运行的发动机来说,期望的最大超压在 可以独立于止回阀向前的布置部分的负压程度,相对于环境压力获得罐。

    Method and apparatus for controlling the overrun mode of operation of an
internal combustion engine
    89.
    发明授权
    Method and apparatus for controlling the overrun mode of operation of an internal combustion engine 失效
    用于控制内燃机的超限运行模式的方法和装置

    公开(公告)号:US4644922A

    公开(公告)日:1987-02-24

    申请号:US790041

    申请日:1985-10-22

    CPC分类号: F02D41/126 F02B1/04

    摘要: The invention is directed to a method and an apparatus for controlling the overrun mode of operation of an internal combustion engine, wherein instantaneous values of the relevant negative speed change of the internal combustion engine are sensed and evaluated to control the overrun mode. In this arrangement, a higher resume speed which is selected on commencement of the overrun mode and reduced to a lower speed limit after a predetermined time function, can be shifted additionally in dependence on the negative speed change. Further, to keep an internal combustion engine from stalling, the actual value of the negative speed change can be compared with a predetermined desired value; if it exceeds that value, the decision for a resume of fuel delivery can be made without delay.

    摘要翻译: 本发明涉及一种用于控制内燃机的超速运行模式的方法和装置,其中检测和评估内燃机的相关负速变化的瞬时值以控制超速模式。 在这种布置中,可以根据负速度变化另外移动在超速模式开始时选择的较高的恢复速度并且在预定时间功能之后降低到较低速度限制。 此外,为了保持内燃机停止,可以将负速度变化的实际值与预定的期望值进行比较; 如果超过这个价值,就可以毫不拖延地作出关于燃油补给恢复的决定。