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1. 发明公开

EP0393697A2 Electrohydraulic system 失效
标题翻译：液压系统。
公开(公告)号：EP0393697A2
公开(公告)日：1990-10-24
申请号：EP90107523.4
申请日：1990-04-20
申请人： VICKERS INCORPORATED
发明人： Dahroug, Mohamed E. , El-Ibiary, Yehia M. , Gunda, Rajamouli , Smith, Paul M. , Silverthorn, Randall G.
IPC分类号： G05B19/416 , F15B21/08 , B22D17/32
CPC分类号： G05B19/416 , B22D17/32 , G05B2219/34215 , G05B2219/35312 , G05B2219/36171 , G05B2219/36513 , G05B2219/37133 , G05B2219/37313 , G05B2219/37333 , G05B2219/37399 , G05B2219/41301 , G05B2219/42123 , G05B2219/45244
摘要： In a die casting machine that includes a shot cylinder having a ram for injecting metal into a die cavity, an electrohydraulic system for controlling operation of the shot cylinder includes an actuator coupled to the shot cylinder ram. A valve supplies hydraulic fluid to the actuator cylinder as a function of valve control signals. Microprocessor-based digital control electronics includes memory for storing a desired ram velocity profile as an incremental function of ram position. The control circuitry is responsive to signals from a sensor coupled to the actuator, indicative of position at the ram, for retrieving corresponding velocity signals from memory and supplying control signals to the valve as a function of such profile velocity signals. The control circuitry further includes facility for adjusting impact of the shot cylinder ram at the end of a cavity-filling stroke as a function of ram and actuator position and/or pressure, independently of the velocity/position profile, to reduce separation and flashing at the die cavity, and to reduce impact wear and fatigue on the overall die casting machine. A keyboard and associated operator display provide operator programmability and selection from a plurality of velocity/position profiles. The actuator and cylinder ram may be advanced in a manual mode of operation for adjustment and calibration proposes. A display associated with the keyboard graphically illustrates desired and actual velocity/position profiles during operation, together with a profile of actuator drive pressure verses position.
摘要翻译：在包括具有用于将金属注入模腔的冲头的喷射缸的压铸机中，用于控制喷射气缸的操作的电动液压系统包括联接到喷射缸柱塞的致动器。阀门作为阀门控制信号的一个功能，向致动器气缸提供液压流体。基于微处理器的数字控制电子设备包括用于存储所需的冲击速度轮廓作为推杆位置的增量功能的存储器。控制电路响应于来自耦合到致动器的传感器的信号，指示压头处的位置，用于从存储器检索相应的速度信号，并根据这种轮廓速度信号向阀提供控制信号。控制电路还包括用于在空腔填充冲程结束时调节喷射缸压头的冲击作为压头和致动器位置和/或压力的函数的功能，独立于速度/位置分布，以减少分离和闪烁在模腔，并减少整体压铸机的冲击磨损和疲劳。键盘和相关联的操作者显示器提供操作者可编程性和从多个速度/位置轮廓中的选择。致动器和气缸柱塞可以在手动操作模式下进行，用于调节和校准。与键盘相关联的显示器图形地示出了操作期间的期望和实际的速度/位置曲线，以及致动器驱动压力与位置的轮廓。

2. 发明公开

EP3101279A1 REDUNDANT SPEED SUMMING ACTUATORS 有权
标题翻译：冗余速度提示执行器
公开(公告)号：EP3101279A1
公开(公告)日：2016-12-07
申请号：EP16163333.4
申请日：2016-03-31
申请人： Hamilton Sundstrand Corporation
发明人： EMMONS, Floyd R. , DIVINCENZO, Gregory
IPC分类号： F04D27/02 , F01D17/16 , F02C9/20 , G05B9/03
CPC分类号： F01D17/14 , F01D9/041 , F01D17/02 , F01D17/20 , F02C9/20 , F04D27/0246 , F05D2240/12 , F05D2260/40311 , F05D2260/57 , F05D2260/84 , F05D2270/62 , G05B9/03 , G05B2219/37333 , G05B2219/41359 , G05B2219/42317 , G05B2219/45006
摘要： A method and system for use with actuation system (10) to control a plurality of vanes (39) disposed within a turbine engine, wherein a vane position sensor (38) provides a vane position signal corresponding to a vane position of the plurality of vanes (39), the actuation system (10) includes a plurality of motors (26) engaged in response to the vane position signal, and a differential gearbox (22) having a plurality of inputs (23) operatively coupled to the plurality of motors (26) and an output (25) operatively coupled to the plurality of vanes (39), wherein an output (25) speed of the output is a sum of a plurality of input speeds of the plurality of inputs (23).
摘要翻译：一种与致动系统（10）一起使用以控制设置在涡轮发动机内的多个叶片（39）的方法和系统，其中叶片位置传感器（38）提供对应于多个叶片的叶片位置的叶片位置信号（39）中，致动系统（10）包括响应于叶片位置信号而接合的多个马达（26）以及具有多个输入（23）的差动齿轮箱（22），该输入（23）可操作地联接到多个马达以及可操作地耦合到所述多个叶片（39）的输出（25），其中所述输出的输出（25）速度是所述多个输入（23）的多个输入速度的和。

3. 发明公开

EP0393697A3 Electrohydraulic system 失效
标题翻译：电动系统
公开(公告)号：EP0393697A3
公开(公告)日：1991-01-23
申请号：EP90107523.4
申请日：1990-04-20
申请人： VICKERS INCORPORATED
发明人： Dahroug, Mohamed E. , El-Ibiary, Yehia M. , Gunda, Rajamouli , Smith, Paul M. , Silverthorn, Randall G.
IPC分类号： G05B19/416 , F15B21/08 , B22D17/32
CPC分类号： G05B19/416 , B22D17/32 , G05B2219/34215 , G05B2219/35312 , G05B2219/36171 , G05B2219/36513 , G05B2219/37133 , G05B2219/37313 , G05B2219/37333 , G05B2219/37399 , G05B2219/41301 , G05B2219/42123 , G05B2219/45244
摘要： In a die casting machine that includes a shot cylinder having a ram for injecting metal into a die cavity, an electrohydraulic system for controlling operation of the shot cylinder includes an actuator coupled to the shot cylinder ram. A valve supplies hydraulic fluid to the actuator cylinder as a function of valve control signals. Microprocessor-based digital control electronics includes memory for storing a desired ram velocity profile as an incremental function of ram position. The control circuitry is responsive to signals from a sensor coupled to the actuator, indicative of position at the ram, for retrieving corresponding velocity signals from memory and supplying control signals to the valve as a function of such profile velocity signals. The control circuitry further includes facility for adjusting impact of the shot cylinder ram at the end of a cavity-filling stroke as a function of ram and actuator position and/or pressure, independently of the velocity/position profile, to reduce separation and flashing at the die cavity, and to reduce impact wear and fatigue on the overall die casting machine. A keyboard and associated operator display provide operator programmability and selection from a plurality of velocity/position profiles. The actuator and cylinder ram may be advanced in a manual mode of operation for adjustment and calibration proposes. A display associated with the keyboard graphically illustrates desired and actual velocity/position profiles during operation, together with a profile of actuator drive pressure verses position.

4. 发明授权

EP0393697B1 Electrohydraulic system 失效
标题翻译：电动液压系统。
公开(公告)号：EP0393697B1
公开(公告)日：1995-06-28
申请号：EP90107523.4
申请日：1990-04-20
申请人： VICKERS INCORPORATED
发明人： Dahroug, Mohamed E. , El-Ibiary, Yehia M. , Gunda, Rajamouli , Smith, Paul M. , Silverthorn, Randall G.
IPC分类号： G05B19/416 , F15B21/08 , B22D17/32
CPC分类号： G05B19/416 , B22D17/32 , G05B2219/34215 , G05B2219/35312 , G05B2219/36171 , G05B2219/36513 , G05B2219/37133 , G05B2219/37313 , G05B2219/37333 , G05B2219/37399 , G05B2219/41301 , G05B2219/42123 , G05B2219/45244

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