Hydraulic power steering apparatus
    32.
    发明授权
    Hydraulic power steering apparatus 失效
    液压动力转向装置

    公开(公告)号:US5638912A

    公开(公告)日:1997-06-17

    申请号:US339229

    申请日:1994-11-10

    IPC分类号: B62D5/07 B62D5/083

    CPC分类号: B62D5/083

    摘要: A power steering apparatus is composed a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has four paths communicating with the fluid source and the reservoir, and each of the four paths is formed with a center-open variable orifice which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the two supply paths is formed with a semi-center-open variable orifice which opens when the control valve is in the neutral state, and two drain paths communicating with the chambers of the power cylinder and the reservoir, each of the two drain paths is formed with a center-closed variable orifice of which closes when the control valve is in the neutral state.

    摘要翻译: 动力转向装置包括用于排出加压流体的流体源,动力缸,响应于操作方向盘的控制阀,用于向动力缸提供来自流体源的加压流体和储存器。 控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。 第一控制部分具有与流体源和储存器连通的四个路径,并且四个路径中的每一个路径形成有当控制阀处于中立状态时打开的中心可开启​​的可变孔口。 第二控制部具有与流体源连通的两个供给路径和动力缸的一对室,两个供给路径中的每一个形成有半中心开口的可变孔,当控制阀处于中立状态时打开 状态和与动力缸和储存器的腔室连通的两个排放路径,两个排水路径中的每一个形成有中心闭合的可变孔口,当控制阀处于空档状态时,其可关闭。

    Two-dimensional optical encoder with three gratings in each dimension
    33.
    发明授权
    Two-dimensional optical encoder with three gratings in each dimension 失效
    具有三维光栅尺的二维光编码器

    公开(公告)号:US5204524A

    公开(公告)日:1993-04-20

    申请号:US848116

    申请日:1992-03-09

    IPC分类号: G01D5/36

    CPC分类号: G01D5/36

    摘要: A first grating is formed on a main scale, and a second and third gratings on an index scale. The first grating generally assumes a cruciform shape, and consists of a grating having grating lines arranged in the X-direction and another grating having grating lines arranged in the Y-direction. The second grating is formed in a square central area of the index scale, and consists of two gratings having grating lines arranged in the X-direction and divided at the center and another two gratings having grating lines arranged in the Y-direction and divided at the center. The third grating consists of four gratings having grating lines arranged in the X-direction with different phases and another four gratings having grating lines arranged in the Y-direction with different phases. A light-emitting element and eight photodetectors that are arranged corresponding to the respective gratings of the third grating are fixed to a movable member on which the index scale is attached. Light emitted from the light-emitting element passes though the second grating, reflected by the first grating, passes through the third grating, and finally detected by the photodetectors. Alternatively, the first grating may consist of rectangular portions arranged in the X- and Y-direction in a matrix form.

    摘要翻译: 第一光栅形成在主刻度上,第二光栅和第三光栅以指标标度形成。 第一光栅通常呈十字形,由具有沿X方向排列的光栅线的光栅和具有沿Y方向排列的光栅线的另一光栅组成。 第二光栅形成在索引刻度的正方形中心区域中,由两个光栅组成,其格栅线沿X方向排列并分成中心,另外两个光栅具有沿Y方向布置的光栅线,并分为 中心。 第三光栅由具有不同相位的沿X方向布置的光栅线的四个光栅组成,另外四个光栅具有沿Y方向排列的具有不同相位的光栅线。 对应于第三光栅的各个光栅排列的发光元件和八个光电检测器被固定到附着有指标的可动部件上。 从发光元件发射的光通过第二光栅,被第一光栅反射,穿过第三光栅,最后由光电检测器检测。 或者,第一光栅可以由以矩阵形式布置在X方向和Y方向上的矩形部分组成。

    Quinoline type mevalonolactones useful for treating hyperlipidemia,
hyperlipoproteinemia or atherosclerosis
    34.
    发明授权
    Quinoline type mevalonolactones useful for treating hyperlipidemia, hyperlipoproteinemia or atherosclerosis 失效
    可用于治疗高脂血症,高脂蛋白血症或动脉粥样硬化的喹啉型甲羟戊酸

    公开(公告)号:US5185328A

    公开(公告)日:1993-02-09

    申请号:US483829

    申请日:1990-02-23

    摘要: A compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.6 are independently hydrogen, C.sub.1-6 alkyl, C.sub.1-6 cycloalkyl, C.sub.1-3 alkoxy, n-butoxy, i-butoxy, sec-butoxy, R.sup.7 R.sup.8 N-- (wherein R.sup.7 and R.sup.8 are independently hydrogen or C.sub.1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl or --O(CH.sub.2).sub.l OR.sup.19 (wherein R.sup.19 is hydrogen or C.sub.1-3 alkyl, and l is 1,2 or 3); or when located at the ortho position to each other, R.sup.1 and R.sup.2, or R.sup.3 and R.sup.4 together form --CH.dbd.CH--CH.dbd.CH--; or when located at the ortho position to each other, R.sup.1 and R.sup.2 together form --OC(R.sup.15 l) (R.sup.16)O-- (wherein R.sup.15 and R.sup.16 are independently hydrogen or C.sub.1-3 alkyl); Y is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --CH.sub.2 --CH.dbd.CH-- or -- CH.dbd.CH--CH.sub.2 --; and Z is --Q--CH.sub.2 WCH.sub.2 --CO.sub.2 R.sup.12, ##STR2## (wherein Q is --C(O)--, --C(OR.sup.13).sub.2 -- or --CH(OH)--; W is --C(O)--, --C(OR.sup.13).sub.2 -- or --C(R.sup.11) (OH)--; R.sup.11 is hydrogen atom or C.sub.1-3 alkyl; R.sup.12 is hydrogen or R.sup.14 (wherein R.sup.14 is physiologically hydrolyzable alkyl or M (wherein M is NH.sub.4, sodium, potassium, 1/2 calcium or a hydrate of lower alkyl amine, di-lower alkyl amine or tri-lower alkyl amine)); two R.sup.13 are independently primary or secondary C.sub.1-6 alkyl; or two R.sup.13 together form --(CH.sub.2).sub.2 -- or --(CH.sub.2).sub.3 ; R.sup.17 and R.sup.18 are independently hydrogen or C.sub.1-3 alkyl; and R.sup.5 is hydrogen, C.sub.1-6 alkyl, C.sub.2-3 alkenyl, C.sub.3-6 cycloalkyl, ##STR3## wherein R.sup.9 is a hydrogen atom, C.sub.1-4 alkyl, C.sub.1-3 alkoxy, fluoro, chloro, bromo or trifluoromethyl), phenyl--(CH.sub.2).sub.m -- (wherein m is 1,2 or 3), --(CH.sub.2).sub.n CH(CH.sub.3)--phenyl or phenyl--(CH.sub.2).sub.n CH(CH.sub.3)-- (wherein n is 0,1 or 2).

    摘要翻译: 下式的化合物:其中R 1,R 2,R 3,R 4和R 6独立地是氢,C 1-6烷基,C 1-6环烷基,C 1-3烷氧基,正丁氧基,异丁氧基,仲丁氧基, 丁氧基,R7R8N-(其中R7和R8独立地是氢或C1-3烷基),三氟甲基,三氟甲氧基,二氟甲氧基,氟,氯,溴,苯基,苯氧基,苄氧基,羟基,三甲基甲硅烷氧基,二苯基叔丁基甲硅烷氧基,羟甲基或 - O(CH 2)lOR 19(其中R 19是氢或C 1-3烷基,且l是1,2或3); 或当位于彼此的邻位时,R1和R2,或R3和R4一起形成-CH = CH-CH = CH-; 或当位于彼此的邻位时,R1和R2一起形成-OC(R151)(R16)O-(其中R15和R16独立地为氢或C1-3烷基); Y是-CH 2 - , - CH 2 CH 2 - , - CH = CH - , - CH 2 -CH = CH-或-CH = CH-CH 2 - ; (其中Q为-C(O) - , - C(OR 13)2 - 或-CH(OH) - ); W为-C(O) - (CH 2) ,-C(OR 13)2 - 或-C(R 11)(OH) - ; R 11为氢原子或C 1-3烷基; R 12为氢或R 14(其中R 14为生理上可水解的烷基或M(其中M为NH 4,钠 ,二价低级烷基胺或三低级烷基胺的水合物));两个R 13独立地为伯或仲C 1-6烷基;或两个R 13一起形成 - (CH 2) 2-或 - (CH 2)3; R 17和R 18独立地是氢或C 1-3烷基; R 5是氢,C 1-6烷基,C 2-3烯基,C 3-6环烷基,其中R 9是氢原子 ,C 1-4烷基,C 1-3烷氧基,氟,氯,溴或三氟甲基),苯基 - (CH 2)m - (其中m为1,2或3), - (CH 2)n CH(CH 3) - (CH 2)n CH(CH 3) - (其中n为0,1或2)。

    Method for continuous casting of steel
    36.
    发明授权
    Method for continuous casting of steel 失效
    连铸钢的方法

    公开(公告)号:US5033534A

    公开(公告)日:1991-07-23

    申请号:US487758

    申请日:1990-03-02

    IPC分类号: B22D11/115

    CPC分类号: B22D11/115

    摘要: A method for continuous casting of steel comprises charging molten steel from a tundish into a mold through exit ports of an immersion nozzle, introducing a magnetic field vertically to a flow of the molten steel from the exit ports by the use of at least a pair of direct current magnets which are arranged on the outer side of copper plates on the wide side of the mold, the immersion nozzle being placed between the direct current magnets and polarities of magnetisms on the top side of the magnets being the same, and casting the molten steel at a predetermined casting rate. One magnetic pole of the direct current magnet is positioned at an upper end of copper plate on the wide side of the mold and the other magnetic pole being positioned at lower than the exit port of the immersion nozzle and on the outer side of copper plate on the wide side of the mold. The immersion nozzle has two exit ports, each of which has an angle of 15.degree. to 45.degree. downward. The direct current magnetic field is controlled within the range of 1000 to 4000 gauss.

    Electric power steering device for a motor vehicle
    38.
    发明授权
    Electric power steering device for a motor vehicle 失效
    机动车用电动助力转向装置

    公开(公告)号:US4685528A

    公开(公告)日:1987-08-11

    申请号:US839542

    申请日:1986-03-14

    IPC分类号: B62D5/04 B62D6/02

    CPC分类号: B62D5/0463

    摘要: In an electric power steering device, an electric motor is drivingly connected to a steering shaft with a steering wheel for generating an assisting power to rotate the steering shaft. A memory has stored a control pattern which non-linearly varies an assisting power with variations in a steering effort. A microprocessor responsive to a vehicle speed detected by a speed sensor ascertains whether the detected vehicle speed is within a low speed range or within a high speed range. Ascertaining that the detected speed is within the low speed range, the microprocessor searches the memory for an assisting power corresponding to the steering effort detected by a torque sensor. Ascertaining that the detected vehicle speed is within the high speed range, on the other hand, the microprocessor calculates an assisting power based upon the detected steering effort and a constant. The microprocessor then outputs a control signal representing either of the searched and calculated assisting power to a signal modulator, which modulates the control signal based upon the vehicle speed from the speed sensor so that the assisting power generated by the electric motor is controlled to meet the modified signal from the signal modulator.

    摘要翻译: 在电动助力转向装置中,电动机驱动地连接到具有用于产生辅助动力以转动转向轴的方向盘的转向轴。 存储器存储了控制模式,其随着转向力的变化而非线性地改变辅助功率。 响应于由速度传感器检测到的车速的微处理器确定检测到的车速是否在低速范围内或在高速范围内。 确定检测到的速度在低速范围内,微处理器在存储器中搜索对应于由转矩传感器检测的转向力的辅助功率。 另一方面,为了确定所检测的车速在高速范围内,微处理器基于检测到的转向力和常数来计算辅助动力。 然后微处理器将表示搜索和计算的辅助功率的控制信号输出到信号调制器,信号调制器根据来自速度传感器的车速来调制控制信号,从而控制由电动机产生的辅助电力以满足 来自信号调制器的修改信号。

    Electric power steering system for a motor vehicle
    39.
    发明授权
    Electric power steering system for a motor vehicle 失效
    机动车电动助力转向系统

    公开(公告)号:US4653601A

    公开(公告)日:1987-03-31

    申请号:US813834

    申请日:1985-12-27

    IPC分类号: B62D5/04

    CPC分类号: B62D5/0457 B62D5/0475

    摘要: In an electric power steering system, a d.c. motor is drivingly connected to a steering shaft with a steering for generating an assisting power to rotate the steering shaft. Independently of an alternator for charging a battery, a d.c. generator driven by a vehicle engine is dedicated for supplying an electric power to the d.c. motor. A control circuit is responsive to a signal representing a manual torque applied to the steering and reads out one of objective values from a memory. The control circuit is further responsive to a fed-back signal indicative of a load applied to the d.c. motor and controls electric current flowing across a field coil of the d.c. generator in such a manner that the difference between the read-out objective value and the fed-back signal becomes zero.

    摘要翻译: 在电动助力转向系统中, 马达驱动地连接到具有用于产生辅助动力以转动转向轴的转向的转向轴。 独立于用于对电池充电的交流发电机,直流 由车辆发动机驱动的发电机专用于向直流电供应电力。 发动机。 控制电路响应于表示施加到转向的手动转矩的信号,并从存储器中读出一个目标值。 控制电路进一步响应于反馈信号,该反馈信号指示施加到直流电的负载。 电动机并控制流过直流电场的励磁线圈的电流。 发生器以读出目标值和反馈信号之间的差成为零的方式。

    Evaporative emission control system
    40.
    发明授权
    Evaporative emission control system 失效
    蒸发排放控制系统

    公开(公告)号:US4446838A

    公开(公告)日:1984-05-08

    申请号:US445838

    申请日:1982-11-30

    IPC分类号: F02M25/08 F02M33/02

    CPC分类号: F02M25/089 F02M2025/0845

    摘要: In an evaporative emission control system of a motor vehicle, a two way valve is provided for connecting the canister with the air-fuel mixture intake tube of the engine when assuming a first position and connecting the canister with the clean side of the air cleaner when assuming a second position. The two way valve assumes the first position when the interior condition of the fuel tank does not tend to saturate the vapor adsorbing power of the canister, and assumes the second position when the interior condition of the fuel tank tends to saturate the vapor adsorbing power of the canister.

    摘要翻译: 在机动车辆的蒸发排放控制系统中,设置双向阀,用于当假定第一位置时将罐与发动机的空气 - 燃料混合物进气管连接,并且将罐与空气净化器的清洁侧连接, 假设第二个位置。 当燃料箱的内部状态不会使罐的蒸汽吸附功率饱和时,双向阀呈现第一位置,并且当燃料箱的内部状态趋于使蒸汽吸附功率饱和时,第二位置处于第二位置 罐。