公开(公告)号：US07434568B1

公开(公告)日：2008-10-14

申请号：US11824977

申请日：2007-07-03

申请人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Semen Vaynblat

发明人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Semen Vaynblat

IPC分类号： F02B43/00

CPC分类号： F02M25/00 ,  F02M37/0064

摘要： A fuel is conditioned in a fuel supply system for more efficient combustion in a combustion chamber. The conditioning system includes a plurality of vessels, each defining a fuel chamber for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel chamber, at least one gas inlet port, a gas outlet port with a gate valve and a pressure reducer mounted thereon. A low level sensor registers a low level of conditioned fuel in the fuel chamber. A gas source feeds a gas to the vessels wherein the gas is dissolved in the liquid fuel for forming a liquid/gas fuel solution. A gas delivery and gas pressure control system with flow-directional valves and gas pressure regulators supply gas and maintain a relatively high, first gas pressure P1 and a relatively low, second gas pressure P2. A low-pressure fuel pump and a liquid fuel supply line supply liquid fuel from a fuel reservoir to the at least one dispersing nozzle of each fuel chamber at a third pressure P3 higher than the first pressure P1. A high-pressure fuel pump feed the conditioned fuel to a combustion chamber at a fourth pressure P4 that is higher than a pressure in the combustion chamber at a moment of combustion. Finally, there is provided an electronic control system connected to receive a signal from the low level sensor and for switching the gas delivery and gas pressure control system over from the fuel chamber indicated by the sensor as depleted to supply the conditioned fuel from another, filled-up fuel chamber.

摘要翻译： 在燃料供给系统中调节燃料以在燃烧室中更有效地燃烧。 调节系统包括多个容器，每个容器限定用于燃料调节的燃料室，安装用于排放到燃料室中的至少一个燃料分散喷嘴，至少一个气体入口，具有闸阀的气体出口和压力 减速器安装在其上。 低级传感器在燃料室中记录低水平的调节燃料。 气体源将气体供给到容器，其中气体溶解在液体燃料中以形成液体/气体燃料溶液。 具有流向阀和气体压力调节器的气体输送和气体压力控制系统供应气体并保持相对高的第一气体压力P 1和相对低的第二气体压力P 2 。 低压燃料泵和液体燃料供应管线将液体燃料从燃料储存器提供到每个燃料室的至少一个分散喷嘴的第三压力P 3比第一压力P < SUB> 1 。 高压燃料泵将经调节的燃料以比燃烧室内的燃烧压力高的第四压力P 4将进料到燃烧室。 最后，提供了一种电子控制系统，其被连接以接收来自低电平传感器的信号，并且用于将燃料输送和气体压力控制系统从由传感器指示的燃料室切换为耗尽，以从另一个填充的 燃料舱。

公开(公告)号：US07523747B2

公开(公告)日：2009-04-28

申请号：US11859307

申请日：2007-09-21

申请人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

发明人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

IPC分类号： F02M21/02

CPC分类号： F02M17/22 ,  F02G2243/04 ,  F02M25/00 ,  F02M27/08 ,  F02M37/0064

摘要： A fuel is conditioned in a fuel supply system for more efficient combustion in a combustion chamber. The conditioning system includes a fuel vessel for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel vessel, at least one gas inlet port and at least one conditioned fuel outlet. A low level sensor registers a lower level of conditioned fuel in the fuel vessel. A high level sensor registers an upper level of conditioned fuel in the fuel vessel. A gas source feeds a gas to the fuel vessel, wherein the gas is dissolved in the liquid fuel for forming a liquid/gas fuel solution. A low-pressure fuel pump and a liquid fuel supply line supply liquid fuel from a fuel reservoir to the at least one dispersing nozzle of the fuel vessel at a pressure P1 higher than the gas pressure P2. A needle valve positioned downstream the fuel chamber, lowers the pressure, created in the fuel chamber by gas pressure P2, to lower level P3 downstream the needle valve. A resulting over-saturation causes gas to escape from solution. A high-pressure fuel pump feeds the homogeneous liquid into a combustion chamber at a pressure P4 that is higher than a pressure P5 in the combustion chamber at a moment of combustion. Finally, there is provided an electronic control system connected to receive a signal from the low level sensor and from the high level sensor for controlling the fuel level in the fuel chamber.

摘要翻译： 在燃料供给系统中调节燃料以在燃烧室中更有效地燃烧。 调节系统包括用于燃料调节的燃料容器，安装用于排放到燃料容器中的至少一个燃料分散喷嘴，至少一个气体入口和至少一个调节燃料出口。 低级传感器在燃料容器中记录较低水平的调节燃料。 高级传感器在燃料容器中登记调节燃料的上限。 气体源将气体供给燃料容器，其中气体溶解在液体燃料中以形成液体/气体燃料溶液。 低压燃料泵和液体燃料供给管线将液体燃料从高于气体压力P2的压力P1从燃料储存器供应到燃料容器的至少一个分散喷嘴。 位于燃料室下游的针阀降低了由燃气压力P2在燃料室中产生的压力，以降低针阀下游的位置P3。 由此导致的过饱和导致气体从溶液中逸出。 高压燃料泵在燃烧室内以高于燃烧室中的压力P5的压力P4将均匀的液体进料到燃烧室中。 最后，提供一种电子控制系统，其连接用于接收来自低电平传感器和高电平传感器的信号，用于控制燃料室中的燃料液位。

公开(公告)号：US20090078226A1

公开(公告)日：2009-03-26

申请号：US11859307

申请日：2007-09-21

申请人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

发明人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

IPC分类号： F02B43/04

CPC分类号： F02M17/22 ,  F02G2243/04 ,  F02M25/00 ,  F02M27/08 ,  F02M37/0064

摘要： A fuel is conditioned in a fuel supply system for more efficient combustion in a combustion chamber. The conditioning system includes a fuel vessel for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel vessel, at least one gas inlet port and at least one conditioned fuel outlet. A low level sensor registers a lower level of conditioned fuel in the fuel vessel. A high level sensor registers an upper level of conditioned fuel in the fuel vessel. A gas source feeds a gas to the fuel vessel, wherein the gas is dissolved in the liquid fuel for forming a liquid/gas fuel solution. A low-pressure fuel pump and a liquid fuel supply line supply liquid fuel from a fuel reservoir to the at least one dispersing nozzle of the fuel vessel at a pressure P1 higher than the gas pressure P2. A needle valve positioned downstream the fuel chamber, lowers the pressure, created in the fuel chamber by gas pressure P2, to lower level P3 downstream the needle valve. A resulting over-saturation causes gas to escape from solution. A high-pressure fuel pump feeds the homogeneous liquid into a combustion chamber at a pressure P4 that is higher than a pressure P5 in the combustion chamber at a moment of combustion. Finally, there is provided an electronic control system connected to receive a signal from the low level sensor and from the high level sensor for controlling the fuel level in the fuel chamber.

摘要翻译： 在燃料供给系统中调节燃料以在燃烧室中更有效地燃烧。 调节系统包括用于燃料调节的燃料容器，安装用于排放到燃料容器中的至少一个燃料分散喷嘴，至少一个气体入口和至少一个调节燃料出口。 低级传感器在燃料容器中记录较低水平的调节燃料。 高级传感器在燃料容器中登记调节燃料的上限。 气体源将气体供给燃料容器，其中气体溶解在液体燃料中以形成液体/气体燃料溶液。 低压燃料泵和液体燃料供给管线将液体燃料从高于气体压力P2的压力P1从燃料储存器供应到燃料容器的至少一个分散喷嘴。 位于燃料室下游的针阀降低了由燃气压力P2在燃料室中产生的压力，以降低针阀下游的位置P3。 由此导致的过饱和导致气体从溶液中逸出。 高压燃料泵在燃烧室内以高于燃烧室中的压力P5的压力P4将均匀的液体进料到燃烧室中。 最后，提供一种电子控制系统，其连接用于接收来自低电平传感器和高电平传感器的信号，用于控制燃料室中的燃料液位。

公开(公告)号：US20090084366A1

公开(公告)日：2009-04-02

申请号：US11863455

申请日：2007-09-28

申请人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

发明人： Igor A. Gachik ,  Lev M. Gurarye ,  Victor N. Gurin ,  Yuri S. Levin ,  Roman J. Press ,  Naum Staroselsky ,  Sam Vaynblat

IPC分类号： F02M23/00

CPC分类号： F02M37/0064 ,  F02B21/00 ,  F02M25/00 ,  F02M59/00 ,  F02M63/0245 ,  F02M2200/95

摘要： A fuel is aerated in a fuel supply and gasification system for more efficient combustion in a combustion chamber. The gasification system includes a mixing device for mixing a liquid fuel with at least one gas. A gas source feeds the gas to a gas feeding nozzle and through the nozzle further to the mixing device, wherein the gas is mixed with the liquid fuel for forming a liquid fuel/gas bubbles mixture. A low-pressure fuel pump connected with the mixing device by a liquid fuel supply line feeds liquid fuel from a fuel reservoir to the mixing device at pressure P1 higher than the gas pressure P2. A prepared liquid fuel/gas bubbles mixture is fed into a high-pressure fuel pump where the liquid fuel/gas bubble mixture get compressed to the state of homogeneous liquid and further is injected into a combustion chamber for instance of internal combustion engine at a pressure P4 that is higher than a pressure P3 in the combustion chamber at the moment of injecting fuel in it. Finally, there is provided an electronic control system comprises electronic variable frequency pulse generator electrically connected with electrically operated gas feeding nozzle.

摘要翻译： 燃料在燃料供应和气化系统中充气，以便在燃烧室中更有效地燃烧。 气化系统包括用于将液体燃料与至少一种气体混合的混合装置。 气体源将气体馈送到气体供给喷嘴并且通过喷嘴进一步送到混合装置，其中气体与液体燃料混合以形成液体燃料/气泡混合物。 通过液体燃料供给管线与混合装置连接的低压燃料泵在高于气体压力P2的压力P1下将液体燃料从燃料储存器供给到混合装置。 将制备的液体燃料/气泡混合物供给到高压燃料泵中，其中液体燃料/气泡混合物被压缩到均匀液体的状态，并进一步被喷射到例如内燃机的燃烧室中的压力 P4高于在其中注入燃料时燃烧室中的压力P3。 最后，提供了一种电子控制系统，包括与电动气体供给喷嘴电连接的电子可变频率脉冲发生器。

公开(公告)号：US07406955B1

公开(公告)日：2008-08-05

申请号：US11943323

申请日：2007-11-20

申请人： Igor A Gachik ,  Lev M Gurarye ,  Victor N Gurin ,  Yuri S. Levin ,  Naum Staroselsky ,  Sam Vaynblat

发明人： Igor A Gachik ,  Lev M Gurarye ,  Victor N Gurin ,  Yuri S. Levin ,  Naum Staroselsky ,  Sam Vaynblat

IPC分类号： F02M17/22 ,  F02M25/00

CPC分类号： F02M25/00 ,  F02D19/12 ,  F02M25/10 ,  F02M29/04 ,  F02M31/186 ,  F02M37/0064 ,  Y02T10/121 ,  Y02T10/126

摘要： A fuel conditioning method is applicable to common rail direct injection or unit injector system. A liquid fuel is conditioned for higher-efficiency combustion in a combustion chamber. The conditioning system includes a fuel vessel for fuel conditioning, at least one fuel dispersing nozzle mounted for discharge into the fuel conditioning vessel, at least one gas inlet port, and at least one conditioned fuel outlet port located in the vessel. A gas source feeds a gas to the fuel conditioning vessel, wherein the gas is dissolved in the liquid fuel for forming a liquid/gas fuel solution. A low-pressure fuel pump and a liquid fuel supply line deliver liquid fuel from a fuel tank to the at least one dispersing nozzle of the fuel vessel at pressure P1 higher than the gas pressure P2. A high-pressure fuel pump feeds the liquid fuel/gas solution into a common rail and further into fuel injectors, providing a pressure P4 higher than a pressure P5 in the combustion chamber at a moment of combustion.

摘要翻译： 燃油调节方法适用于共轨直喷或单喷油器系统。 调节液体燃料以在燃烧室中进行更高效率的燃烧。 调节系统包括用于燃料调节的燃料容器，至少一个安装用于排放到燃料调节容器中的燃料分散喷嘴，至少一个气体入口和位于容器中的至少一个调节燃料出口。 气体源将气体供给燃料调节容器，其中气体溶解在液体燃料中以形成液体/气体燃料溶液。 低压燃料泵和液体燃料供应管线将液体燃料从燃料箱输送到燃料容器的至少一个分散喷嘴，压力P 1高于气体压力P < 2 。 高压燃料泵将液体燃料/气体溶液供给到共轨中并进一步供给到燃料喷射器中，提供高于压力P <5的压力P <4> 燃烧室在燃烧时刻。

公开(公告)号：US08037849B1

公开(公告)日：2011-10-18

申请号：US13050584

申请日：2011-03-17

申请人： Naum Staroselsky ,  Lev M. Gurarye

发明人： Naum Staroselsky ,  Lev M. Gurarye

IPC分类号： F02M17/22

CPC分类号： F02M25/10 ,  F02M21/08 ,  F02M31/18 ,  Y02T10/121 ,  Y02T10/126 ,  Y02T10/34

摘要： A fuel supply to unit pump-injector systems of diesel engines includes a gasification and saturation of the liquid diesel fuel. A first fuel line delivers the fuel to a low pressure pump driven by an engine shaft which pumps the fuel to a common low pressure fuel manifold. There, the fuel is distributed for injection by the pump-injector units of the engine cylinders. A second fuel line delivers the fuel to a feed pump that feeds through a plurality of nozzles into a gasification vessel. The vessel is pressurized with a gas (e.g., carbon dioxide, air, etc.) a pressure level P2. There, the fuel is saturated with pressurized gas, which is dissolved in the fuel. The solution is then pumped by a second electro motor driven pump that further increases the solution pressure up to a level P3, which is higher than the pressure level P1. At that point, the solution becomes under-saturated and it is fed to the fuel manifold for injection into the engine. A feedback system for the fuel with further pressure and temperature control is provided by the system. The system, and specifically its pumps and the fill level of the gasification vessel, is controlled by a control system.

摘要翻译： 柴油机的单元泵喷射器系统的燃料供应包括液化柴油燃料的气化和饱和。 第一燃料管路将燃料输送到由发动机轴驱动的低压泵，该发动机轴将燃料泵送到普通的低压燃料歧管。 在那里，燃料由发动机气缸的泵 - 喷射器单元分配注射。 第二燃料管路将燃料输送到通过多个喷嘴进入气化容器的进料泵。 用压力水平P2的气体（例如二氧化碳，空气等）对容器加压。 在那里，燃料被溶解在燃料中的加压气体饱和。 然后通过第二电动机驱动的泵泵送溶液，其进一步将溶液压力增加到高于压力水平P1的水平P3。 此时，溶液变得饱和不足，并被送入燃料歧管以注入发动机。 用于具有进一步压力和温度控制的燃料的反馈系统由系统提供。 该系统，特别是其泵和气化容器的填充水平由控制系统控制。

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：US4119391A

公开(公告)日：1978-10-10

申请号：US530610

申请日：1974-12-09

申请人： Alexander Rutshtein ,  Naum Staroselsky

发明人： Alexander Rutshtein ,  Naum Staroselsky

IPC分类号： F04B49/00 ,  F04B49/06 ,  F04D27/02 ,  F17D5/00 ,  G05D11/02

CPC分类号： F17D5/00 ,  F04B49/007 ,  F04B49/06 ,  F04D27/00 ,  F04D27/02 ,  Y10T137/2516

摘要： Systems and methods are disclosed for the automatic control of one or more pumping and compressing machines and of the related fluid network. The purpose of such systems and methods is to maintain only the required pressure just after a source or just before a user so as to reduce the compressing or pumping energy required; to divide the load within a group of one or more compressing or pumping machines so as to compress the fluid with reduced use of energy and improved pressure control; to improve protection of the turbo compressors when used in parallel from dangerous levels of operation.

摘要翻译： 公开了用于自动控制一个或多个泵送和压缩机器以及相关流体网络的系统和方法。 这种系统和方法的目的是仅在源头之后或刚刚在使用者之前保持所需的压力，以便减少所需的压缩或泵送能量; 将一个或多个压缩或泵送机组中的负载分开，以便以减少的能量使用和改进的压力控制来压缩流体; 以便在危险的操作水平下并行使用时改进涡轮压缩机的保护。

公开(公告)号：US06719523B2

公开(公告)日：2004-04-13

申请号：US10002924

申请日：2001-11-15

申请人： Naum Staroselsky ,  Mykhailo Volynskyi ,  Dmitry Drob

发明人： Naum Staroselsky ,  Mykhailo Volynskyi ,  Dmitry Drob

IPC分类号： F01D1720

CPC分类号： F01D17/26

摘要： Steam turbine speed-control systems often incorporate pilot valves for the purpose of controlling the position of hydraulic actuators for steam valves. However, the operational efficiency of these pilot valves can suffer from imperfections due to manufacturing defects, wear, and the like, thereby impairing the control system's overall performance. For these reasons, this disclosure relates to a method for overcoming a faulty pilot valve by incorporating a control system (including additional controllers) dedicated to the pilot valve. In this type setup, not only can the position of the pilot valve be a control variable, but the velocity of actuation of this valve can also be used as another control variable. Therefore, the results of separate controllers, using these two control variables, can be combined to improve the dynamic response of the steam turbine speed-control system.

摘要翻译： 蒸汽轮机速度控制系统通常包含导阀，用于控制蒸汽阀的液压执行器的位置。 然而，由于制造缺陷，磨损等，这些先导阀的运行效率将受到缺陷的影响，从而削弱了控制系统的整体性能。 由于这些原因，本公开涉及一种通过结合专用于先导阀的控制系统（包括额外的控制器）来克服故障先导阀的方法。 在这种类型的设置中，不仅可以使先导阀的位置成为控制变量，而且也可以将该阀的致动速度用作另一个控制变量。 因此，使用这两个控制变量的单独控制器的结果可以结合起来，以提高蒸汽轮机速度控制系统的动态响应。

公开(公告)号：US4486142A

公开(公告)日：1984-12-04

申请号：US965562

申请日：1978-12-01

申请人： Naum Staroselsky

发明人： Naum Staroselsky

IPC分类号： F04D27/02 ,  F04B49/02

CPC分类号： F04D27/0207 ,  F04D27/0261 ,  F04D27/0284

摘要： A control apparatus for antisurge protection of a dynamic compressor including a junction of a closed antisurge loop with a surge limit computing module and a two mode controller with a relay backup system with deviation alarms is characterized in operation in that during a slow disturbance, the two mode controller provides modulated antisurge protection by opening a relief valve, if the operating point of the compressor crosses the surge control line and during a dangerously fast disturbance, the relay backup system provides antisurge protection if a preestablished deviation of the operating point from the surge control line appears. A relay backup system opens the relief valve very quickly. When the relief valve is so opened, the process of the user of fluid from the compressor is compensated by increasing the performance of the compressor to maintain pressure of flow rate. Then the relay system closes the relief valve with a relatively slow speed, which prevents a dangerous deviation of the operating point from the surge control line. In time, the surge limit line may change so that the surge control line is no longer correctly placed. If under such circumstances surge appears, then the backup relay system opens the relief valve very fast, closes it with a relatively slow speed and changes the position of surge control line.

摘要翻译： 一种动力压缩机的防喘振保护控制装置，其特征在于，在动作压缩机包括闭合的防喘振回路与浪涌极限计算模块的连接点以及具有偏差报警器的继电器备用系统的两模式控制器中， 模式控制器通过打开安全阀来提供调节的防喘振保护，如果压缩机的工作点与浪涌控制线交叉，并且在危险的快速干扰期间，如果工作点与喘振控制器的预先设定的偏差，继电器备用系统提供防喘振保护 线出现。 继电器备用系统非常快速地打开溢流阀。 当安全阀如此打开时，来自压缩机的流体使用者的过程通过增加压缩机的性能来补偿以保持流量的压力。 然后继电器系统以相对较慢的速度关闭安全阀，防止工作点与浪涌控制线路发生危险的偏差。 在时间上，浪涌限制线可能改变，使得浪涌控制线不再被正确放置。 如果在这种情况下出现浪涌，则备用继电器系统非常快速地打开溢流阀，以相对较慢的速度关闭安全阀，并改变喘振控制线的位置。