公开(公告)号：US20100292422A1

公开(公告)日：2010-11-18

申请号：US12063034

申请日：2006-08-11

申请人： Hans Peter Rath ,  Hans-Michael Walter ,  Oskar Nuyken ,  Fritz Elmar Kuehn ,  Yanmei Zhang ,  Hui Yee Yeong ,  Brigitte Voit ,  Radha Krishnan Narayanan

发明人： Hans Peter Rath ,  Hans-Michael Walter ,  Oskar Nuyken ,  Fritz Elmar Kuehn ,  Yanmei Zhang ,  Hui Yee Yeong ,  Brigitte Voit ,  Radha Krishnan Narayanan

IPC分类号： C08F4/44

CPC分类号： C08F8/00 ,  C08F210/10 ,  C08K3/00 ,  C08L23/22 ,  C08F10/00 ,  C08F4/695 ,  C08F212/08

摘要： The invention relates to a method for producing copolymers made from isobutene and at least one vinylaromatic component. Said method consists of polymerising isobutene or a hydrocarbon mixture containing isobutene with at least one vinylaromatic compound in the presence of a solvent-stable transistion metal complex comprising slightly co-ordinating anions as a polymerisation catalyst. The invention also relates to copolymers made of isobutene and at least one vinylaromatic compound, which can be obtained by means of said inventive method, in addition to specific functionalisation products therefrom.

摘要翻译： 本发明涉及一种由异丁烯和至少一种乙烯基芳族成分制备共聚物的方法。 所述方法包括将异丁烯或含有异丁烯的烃混合物与至少一种乙烯基芳族化合物在溶剂稳定的转移金属络合物存在下聚合，所述络合物包含稍微配位的阴离子作为聚合催化剂。 本发明还涉及由异丁烯和至少一种乙烯基芳族化合物制成的共聚物，其可以通过所述本发明方法获得，除了其中的特定的官能化产物。

公开(公告)号：US20060283169A1

公开(公告)日：2006-12-21

申请号：US11427515

申请日：2006-06-29

申请人： Krishnan Narayanan ,  Paul Fisher

发明人： Krishnan Narayanan ,  Paul Fisher

IPC分类号： F02C9/00

CPC分类号： F04D27/0284 ,  F04D27/0207

摘要： Many variables in processes such as those using turbocompressors and turbines must be limited or constrained. Limit control loops are provided for the purpose of limiting these variables. By using a combination of closed loop and open loop limit control schemes, excursions into unfavorable operation can be more effectively avoided. Transition between open loop and closed loop may be enhanced by testing the direction and magnitude of the rate at which the limit variable is changing. If the rate of change indicates recovery is imminent, control is passed back to the closed loop limit control function.

摘要翻译： 诸如使用涡轮压缩机和涡轮机的过程中的许多变量必须受到限制或约束。 提供限制控制回路用于限制这些变量。 通过使用闭环和开环限制控制方案的组合，可以更有效地避免对不利操作的偏移。 开环和闭环之间的转换可以通过测试极限变量正在改变的速率的方向和幅度来增强。 如果变化率指示恢复即将到来，则控制被传回回路限制控制功能。

公开(公告)号：US20050154479A1

公开(公告)日：2005-07-14

申请号：US10756538

申请日：2004-01-13

申请人： Krishnan Narayanan ,  Paul Fisher

发明人： Krishnan Narayanan ,  Paul Fisher

IPC分类号： F04D27/02 ,  G05B15/00

CPC分类号： F04D27/0284 ,  F04D27/0207

摘要： Many variables in processes such as those using turbocompressors and turbines must be limited or constrained. Limit control loops are provided for the purpose of limiting these variables. By using a combination of closed loop and open loop limit control schemes, excursions into unfavorable operation can be more effectively avoided. Transition between open loop and closed loop may be enhanced by testing the direction and magnitude of the rate at which the limit variable is changing. If the rate of change indicates recovery is imminent, control is passed back to the closed loop limit control function.

摘要翻译： 诸如使用涡轮压缩机和涡轮机的过程中的许多变量必须受到限制或约束。 提供限制控制回路用于限制这些变量。 通过使用闭环和开环限制控制方案的组合，可以更有效地避免对不利操作的偏移。 开环和闭环之间的转换可以通过测试极限变量正在改变的速率的方向和幅度来增强。 如果变化率指示恢复即将到来，则控制被传回回路限制控制功能。

公开(公告)号：US20120100013A9

公开(公告)日：2012-04-26

申请号：US12777445

申请日：2010-05-11

申请人： Krishnan Narayanan ,  Paul Reinke

发明人： Krishnan Narayanan ,  Paul Reinke

IPC分类号： F04B49/06

CPC分类号： F04D27/0207

摘要： A method of surge protection for a dynamic compressor that has a corresponding compressor map. A control system continually calculates an equivalent polytropic head parameter in order to define a surge limit line. The system then calculates a control parameter and determines the distance the control parameter to the surge limit line wherein the control parameter is dynamic to changes in compressor load and invariant to changes in suction conditions and gas compressibility. As a result of the distance of the control parameter to the surge limit line, the surge valve of a dynamic compressor is actuated to prevent surge.

摘要翻译： 一种具有相应压缩机图的动态压缩机的浪涌保护方法。 控制系统连续地计算等效的多变头参数，以便定义浪涌极限线。 然后，系统计算控制参数并确定控制参数到浪涌极限线的距离，其中控制参数对于压缩机负载的变化是动态的，并且对吸入条件和气体压缩性的变化是不变的。 作为控制参数与浪涌限制线的距离的结果，动态压缩机的喘振阀被致动以防止浪涌。

公开(公告)号：US07594386B2

公开(公告)日：2009-09-29

申请号：US11427515

申请日：2006-06-29

申请人： Krishnan Narayanan ,  Paul F Fisher

发明人： Krishnan Narayanan ,  Paul F Fisher

IPC分类号： F02C9/00 ,  F01D17/00

CPC分类号： F04D27/0284 ,  F04D27/0207

摘要： Many variables in processes such as those using turbocompressors and turbines must be limited or constrained. Limit control loops are provided for the purpose of limiting these variables. By using a combination of closed loop and open loop limit control schemes, excursions into unfavorable operation can be more effectively avoided. Transition between open loop and closed loop may be enhanced by testing the direction and magnitude of the rate at which the limit variable is changing. If the rate of change indicates recovery is imminent, control is passed back to the closed loop limit control function.

摘要翻译： 诸如使用涡轮压缩机和涡轮机的过程中的许多变量必须受到限制或约束。 提供限制控制回路用于限制这些变量。 通过使用闭环和开环限制控制方案的组合，可以更有效地避免对不利操作的偏移。 开环和闭环之间的转换可以通过测试极限变量正在改变的速率的方向和幅度来增强。 如果变化率指示恢复即将到来，则控制被传回回路限制控制功能。

公开(公告)号：US20080221285A1

公开(公告)日：2008-09-11

申请号：US11997912

申请日：2006-08-11

申请人： Hans-Michael Walter ,  Mirjam Herrlich-Loos ,  Fritz Elmar Kuehn ,  Yanmei Zhang ,  Brigitte Voit ,  Radha Krishnan Narayanan

发明人： Hans-Michael Walter ,  Mirjam Herrlich-Loos ,  Fritz Elmar Kuehn ,  Yanmei Zhang ,  Brigitte Voit ,  Radha Krishnan Narayanan

IPC分类号： C08F4/06 ,  C07F11/00

CPC分类号： B01J31/1805 ,  B01J2231/12 ,  B01J2531/64

摘要： The invention relates to a solvent-stable metal catalyst having slightly coordinating counter anions of formula I [M(L)a(Z)b]m+m(A−)(I), wherein M represents a transition metal of groups 3-12 of the periodic system, a lanthanide or a metal of groups 2 or 13 of the periodic system; L represents a solvent molecule; Z represents a mono or polycharged ligand; A− represents a slightly or non coordinated anion; a represents a whole number which is greater than or equal to 1; b represents a whole number which is greater than or equal to 1, whereby the total from a and b is between 4 and 8, and m represents a whole number from 1 6. The invention also relates to a method for polymerising olefinically unsaturated compounds in the presence of said catalyst and copolymers which are made of monomers comprising isobutene and at least one vinylaromatic compound which is obtained according to said inventive method.

摘要翻译： 本发明涉及一种溶剂稳定的金属催化剂，其具有式I的轻微配位的反阴离子[M（L）a（Z）b + m + （I），其中M表示周期系统的基团3-12的过渡金属，镧系元素或周期性体系的基团2或13的金属; L表示溶剂分子; Z表示单或多电荷配体; A 表示轻度或非配位的阴离子; a表示大于或等于1的整数; b表示大于或等于1的整数，其中a和b的总数在4和8之间，m表示从1 6起的整数。本发明还涉及一种聚合烯属不饱和化合物的方法， 所述催化剂和共聚物的存在由根据本发明方法获得的包含异丁烯和至少一种乙烯基芳族化合物的单体制成。

公开(公告)号：US20240027199A1

公开(公告)日：2024-01-25

申请号：US18081615

申请日：2022-12-14

申请人： Amit Kumar ,  Nishant Mehta ,  Piyush Manocha ,  Anshul Gupta ,  Naveen Sankaran ,  Anshul Anand ,  Sri Krishnan Narayanan ,  Dharmesh Kumar ,  Raffaele Menolascino

发明人： Amit Kumar ,  Nishant Mehta ,  Piyush Manocha ,  Anshul Gupta ,  Naveen Sankaran ,  Anshul Anand ,  Sri Krishnan Narayanan ,  Dharmesh Kumar ,  Raffaele Menolascino

IPC分类号： G01C21/34 ,  B60L58/12 ,  G06Q10/083 ,  G07C5/00

CPC分类号： G01C21/3407 ,  G01C21/3469 ,  B60L58/12 ,  G06Q10/083 ,  G07C5/006

摘要： Aspects of the present disclosure provide methods, devices, and computer-readable storage media that support adaptive scheduling of electric vehicles (EVs) of an EV fleet for order deliveries. In some implementations, one or more aspects of the adaptive EV scheduling may be customized for EVs. For example, the adaptive EV scheduling may include identifying an energy efficient route that also reduces stress on a battery of an EV and may be based at least in part on a charging parameter associated with the EV. In some examples, the charging parameter may include one or more of a state of charge (SOC) associated with the battery, a state of health (SOH) associated with the battery, a location of a charging station for the EV, an average charging duration associated with the EV, or an intelligent charging parameter associated with the EV.

公开(公告)号：US10436208B2

公开(公告)日：2019-10-08

申请号：US13532837

申请日：2012-06-26

申请人： Krishnan Narayanan ,  Paul Reinke

发明人： Krishnan Narayanan ,  Paul Reinke

IPC分类号： F04D27/02 ,  F04D27/00

摘要： A method of correcting surge control parameters that includes providing a dynamic compressor having a compressor, driver, surge valve, and control system. The control system establishes surge control parameters such as surge detection lines, surge limit lines, and then detects the onset of a surge in the dynamic compressor. When the surge is detected the control system measures variables of the dynamic compressor such as fluid pressure, fluid speed, power, speed and valve position and based on these variables the control system automatically corrects the surge control parameters based on these variables at the time of the onset of the surge is detected. Advisory information is provided by control system to user for corrective actions to prevent surge.

公开(公告)号：US5879133A

公开(公告)日：1999-03-09

申请号：US844606

申请日：1997-04-21

申请人： Saul Mirsky ,  Naum Staroselsky ,  Brett W. Batson ,  Krishnan Narayanan

发明人： Saul Mirsky ,  Naum Staroselsky ,  Brett W. Batson ,  Krishnan Narayanan

IPC分类号： F02C9/28 ,  F04D27/02 ,  F04B49/20

CPC分类号： F02C9/28 ,  F04D27/02 ,  F05D2270/101

摘要： A method is provided for controlling fuel flow to the combustor of a gas generator turbine during sudden changes in load or during a surge cycle of the process turbocompressor. Surge control is initiated by analog input signals emanating from various devices located throughout the compressor-process system. The fuel control system includes input signals from the gas turbine driver. These signals are acted upon by the fuel control system which transmits a signal to a fuel valve actuator that controls the valve that meters fuel to the combustor. In addition to this sequence of control communication, however, is a rate-of-change in the amount of the fuel provided. The rate of the increase of the amount of fuel is determined by current operating functions of the fuel control system. However, because of the characteristics of general load rejection and recovery, and the abrupt nature of surge, the rate of change in the flow rate of fuel is extremely high. This rapid increase of fuel to the combustor may lead to dangerous excursions in temperature, resulting in high temperatures in gas turbine elements. Consequently, a new function is added to the fuel control system's operation whereby improved regulation of the rate of increase of fuel is achieved. This new function receives a signal that either surge or a change in load has been detected. Next, a signal is transmitted to the fuel valve actuator, regulating fuel to the combustor, thus power to the power turbine, thereby preventing overspeeding. After that, the rate of change of the fuel valve is limited for a period of time. Once recovery has been accomplished, the change rate of the fuel valve is gradually returned to a normal operating setting.

摘要翻译： 提供了一种用于控制在负载突然变化或过程涡轮压缩机的喘振周期期间向燃气发电机涡轮机的燃烧器流动的燃料。 浪涌控制由位于整个压缩机过程系统的各种设备发出的模拟输入信号启动。 燃料控制系统包括来自燃气涡轮驱动器的输入信号。 这些信号由燃料控制系统起作用，该燃料控制系统将信号发送到燃料阀致动器，燃料阀致动器控制将燃料喷射到燃烧器的阀。 然而，除了这个控制通信序列之外，还提供了所提供的燃料的量的变化率。 燃料量的增加率由燃油控制系统的当前运行功能决定。 然而，由于一般的负载抑制和回复特性以及浪涌的突然特性，燃料流量的变化率非常高。 燃料对燃烧器的快速增加可能导致温度的危险偏移，导致燃气轮机元件的高温。 因此，在燃料控制系统的操作中增加了新的功能，从而实现了对燃料增加速率的改进的调节。 该新功能接收到已检测到浪涌或负载变化的信号。 接下来，信号被传送到燃料阀致动器，调节到燃烧器的燃料，从而对动力涡轮机供电，从而防止超速。 之后，燃料阀的变化率被限制一段时间。 一旦恢复完成，燃料阀的变化率逐渐恢复到正常的运行状态。

公开(公告)号：US09133850B2

公开(公告)日：2015-09-15

申请号：US13005601

申请日：2011-01-13

申请人： Krishnan Narayanan ,  Paul Reinke ,  Nikhil Dukle

发明人： Krishnan Narayanan ,  Paul Reinke ,  Nikhil Dukle

IPC分类号： F04D27/02 ,  F04D27/00

CPC分类号： F04D27/001 ,  F04D27/0223

摘要： A method of preventing surge in a dynamic compressor is disclosed. The method includes providing an anti-surge valve having an adjustable opening for increasing the flow through a dynamic compressor. The next step is sensing process conditions in the dynamic control to determine a compressor load variable. A control system estimates a process disturbance model using the compressor load variable. The control system then adjusts a safety margin using a rate limited response and initiates a closed loop response using process feedback based on the process disturbance model. The control system adjusts the opening of the anti-surge valve according to the safety margin and closed loop response.

摘要翻译： 公开了一种防止动态压缩机浪涌的方法。 该方法包括提供具有可调节开口的防喘振阀，以增加通过动态压缩机的流量。 下一步是检测动态控制中的过程条件以确定压缩机负载变量。 控制系统使用压缩机负载变量来估计过程干扰模型。 然后，控制系统使用速率限制响应来调整安全裕度，并使用基于过程扰动模型的过程反馈来启动闭环响应。 控制系统根据安全裕度和闭环响应调节防喘振阀的开度。