Process for producing optically active cysteine derivatives
    92.
    发明授权
    Process for producing optically active cysteine derivatives 失效
    光学活性半胱氨酸衍生物的制备方法

    公开(公告)号:US06407281B1

    公开(公告)日:2002-06-18

    申请号:US09600253

    申请日:2000-08-25

    IPC分类号: C07C32100

    摘要: A process for producing optically active cysteine derivatives with high optical purity and good quality which is economically advantageous and is high in productivity even on a commercial scale is provided. A process for producing an optically active cysteine derivative which comprises synthesizing a D-form or L-form optically active cysteine derivative of the general formula (2) shown below (R1 represents an amino-protecting group of the urethane or acyl type, R0 represents a hydrogen atom or, taken together with R1, an amino-protecting group, R2 represents an alkyl, aryl or aralkyl group, R3 represents a univalent organic group and * represents the position of an asymmetric carbon) by reacting the corresponding D-form or L-form optically active amino acid derivative of the general formula (1) shown below with an alcohol of the general formula (3) shown below and a strong acid and/or a thionyl halide and recovering the above cysteine derivative (2) from the reaction mixture, the procedural series from reaction to recovery being carried out under conditions such that the medium contacting the above optically active cysteine derivative (2) is within the range from acidic to weakly basic to thereby recover the above cysteine derivative (2) from the reaction mixture while suppressing the decomposition and racemization thereof.

    摘要翻译: 提供一种制造光学活性半胱氨酸衍生物的方法,该方法具有高光学纯度和良好的质量,其在经济上是有利的并且即使在商业规模下也具有高生产率。1.一种光学活性半胱氨酸衍生物的制备方法,其包括合成D型或L型 (2)的光学活性半胱氨酸衍生物(R1表示氨基甲酸酯或酰基型氨基保护基,R 0表示氢原子,或与R 1一起形成氨基保护基,R2表示 烷基,芳基或芳烷基,R 3表示一价有机基团,*表示不对称碳的位置),通过使下述通式(1)的相应的D型或L型光学活性氨基酸衍生物与 如下所示的通式(3)的醇和强酸和/或亚硫酰卤并从反应混合物中回收上述半胱氨酸衍生物(2),程序 在与上述光学活性半胱氨酸衍生物(2)接触的介质在酸性至弱碱性的范围内,从反应混合物中回收上述半胱氨酸衍生物(2)的条件下进行反应回收的ural系列,同时抑制 其分解和外消旋化。

    Elevator starting compensation method and apparatus
    95.
    发明授权
    Elevator starting compensation method and apparatus 失效
    电梯起动补偿方法及装置

    公开(公告)号:US4852694A

    公开(公告)日:1989-08-01

    申请号:US183088

    申请日:1988-04-19

    IPC分类号: B66B1/28

    CPC分类号: B66B1/28

    摘要: Elevator starting compensation for preventing bounding and dash-out phenomena of an elevator cage possibly occurring due to unbalanced torque produced by a difference in weight between the cage and a counter weight. Adjusting quantities utilized in the starting compensation are arithmetically determined by a microcomputer employed for the elevator control, the result of the arithmetic operation being are stored in an electrically erasable programmable read-only memory. The starting compensation is performed on the basis of the adjusting quantities stored in the memory. The adjustment is facilitated.

    摘要翻译: 电梯启动补偿,用于防止由于轿厢和配重之间的重量差产生的不平衡扭矩而可能发生的电梯轿厢的边界和冲突现象。 在起动补偿中使用的调节量由用于电梯控制的微型计算机确定,算术运算的结果存储在电可擦除可编程只读存储器中。 基于存储在存储器中的调节量执行起始补偿。 调整便利。

    Fuel injection nozzle for an internal combustion engine
    96.
    发明授权
    Fuel injection nozzle for an internal combustion engine 失效
    用于内燃机的燃油喷嘴

    公开(公告)号:US4506833A

    公开(公告)日:1985-03-26

    申请号:US428222

    申请日:1982-09-29

    IPC分类号: F02M61/18 F02M45/08

    CPC分类号: F02M61/18

    摘要: A fuel injection nozzle for an internal combustion engine includes a hollow nozzle body and a valve member liftably disposed therein. The nozzle body and the valve member define a space therebetween through which fuel is supplied to an orifice in the nozzle body. The valve member contacts the nozzle body at a position to block communication between the space and the orifice when the valve member is in the unlifted position. Fuel enters the orifice from the space as the valve member lifts. The valve member and nozzle body have opposing surfaces establishing a gap between the space and orifice. The gap has a cross-sectional area smaller than that of the orifice that remains constant as the valve member lifts through a predetermined range so that the rate of fuel injection increases through a plateau as the valve member lifts to a position above the predetermined range.

    摘要翻译: 一种用于内燃机的燃料喷射喷嘴包括中空喷嘴体和可升降地设置在其中的阀构件。 喷嘴体和阀构件在其间限定了一个空间,燃料通过该空间供应到喷嘴体中的孔口。 当阀构件处于未开启位置时,阀构件在一个位置处接触喷嘴体,以阻挡空间和孔口之间的连通。 当阀构件升起时,燃料从空间进入孔口。 阀构件和喷嘴体具有在空间和孔口之间建立间隙的相对表面。 间隙的截面面积小于孔口的横截面面积,其随着阀构件升高预定范围而保持恒定,使得当阀构件升高到高于预定范围的位置时,燃料喷射速率通过平台升高。

    Feedback control system for internal combustion engine
    97.
    发明授权
    Feedback control system for internal combustion engine 失效
    内燃机反馈控制系统

    公开(公告)号:US4314534A

    公开(公告)日:1982-02-09

    申请号:US146113

    申请日:1980-05-02

    摘要: A control system for an internal combustion engine comprises a transducer for issuing a signal representative of combustion pressure in a combustion chamber, a unit consisting of a bandpass filter and a wave-form shaping circuit for issuing a signal representative of existing combustion timing of the combustion chamber by processing the signal from the transducer for detection of rapid increase of the combustion pressure; a reference timing circuit for issuing a signal representative of a predetermined reference combustion timing of the combustion chamber in accordance with operation modes of the engine, a comparator circuit for issuing a signal representative of a difference between the signal from the unit and the signal from the reference timing circuit, and a unit consisting of a discriminating circuit and an actuator driving circuit for controlling the ignition timing, the air-fuel ratio of air-fuel mixture and the amount of exhaust gas recirculated into the intake system of the engine, by processing the signal from the comparator circuit.

    摘要翻译: 用于内燃机的控制系统包括用于发出表示燃烧室中的燃烧压力的信号的换能器,由带通滤波器和波形整形电路组成的单元,用于发出表示燃烧的现有燃烧正时的信号 通过处理来自传感器的信号来检测燃烧压力的快速增加; 用于根据发动机的操作模式发出表示燃烧室的预定参考燃烧定时的信号的参考定时电路,用于发出表示来自该单元的信号与来自该单元的信号之间的差异的信号的比较器电路 参考定时电路,以及由识别电路和致动器驱动电路组成的单元,其通过处理来控制点火正时,空气燃料混合物的空燃比和再循环到发动机的进气系统中的排气量 来自比较器电路的信号。

    Elevator control apparatus having a novel hall call allotting device
    98.
    发明授权
    Elevator control apparatus having a novel hall call allotting device 失效
    电梯控制装置有一个新的呼叫所有设备

    公开(公告)号:US4113066A

    公开(公告)日:1978-09-12

    申请号:US702145

    申请日:1976-07-02

    IPC分类号: B66B1/18 B66B1/20

    CPC分类号: B66B1/20

    摘要: A control circuit for allotting hall calls to elevator cars in an elevator car system, having a generator for generating a scanning signal consisting of scanning pulses. A hall call detector receives the scanning signal and generates a signal indicating the floor at which a hall call occurs. Elevator car detectors are provided, each of which receives the scanning signal and generates a signal indicating the position of the corresponding elevator cars. A memory circuit determines the serving areas of the respective elevator cars according to the signals from the elevator car detectors. An allotting circuit allots the signals from the hall call detector to the elevator car according to the area determined by the memory circuit.