公开(公告)号：US06261068B1

公开(公告)日：2001-07-17

申请号：US09416166

申请日：1999-10-11

申请人： Manfred Kramer ,  Heinrich Schlossarczyk ,  Karl-Heinrich Schönfeld

发明人： Manfred Kramer ,  Heinrich Schlossarczyk ,  Karl-Heinrich Schönfeld

IPC分类号： F04B4900

CPC分类号： F04B49/16 ,  F04B39/08 ,  F04B2205/05 ,  F04B2205/16

摘要： A gas compressor includes a compression chamber, an outlet valve, and a shuttle valve which disables the outlet valve when it is connected to an atmospheric pressure relief chamber in idle operation. A throttle line circumventing the shuttle valve is provided which permits by-passed flow between the compression chamber and the atmospheric pressure relief chamber in idle operation, thereby preventing deposits and moisture condensation in the downstream flow path to the pressure relief chamber due to the disabling of the outlet valve, which might otherwise lead to possible operational malfunctions. Compressed-air systems employed in the automotive industry represent an important area of application for the invention.

摘要翻译： 气体压缩机包括压缩室，出口阀和梭阀，当在空转操作中连接到大气压释放室时，其将出口阀禁用。 提供了围绕梭阀的节流管线，其允许在怠速运行中在压缩室和大气压力释放室之间经过流动，从而防止由于不能使泄压室在压力释放室的下游流动中的沉积物和水分冷凝 出口阀，否则可能导致可能的操作故障。 用于汽车行业的压缩空气系统是本发明的重要应用领域。

公开(公告)号：US6158462A

公开(公告)日：2000-12-12

申请号：US136669

申请日：1998-08-19

申请人： Masao Kashiwagi ,  Masayuki Nakamura

发明人： Masao Kashiwagi ,  Masayuki Nakamura

IPC分类号： F15B11/00 ,  E02F9/22 ,  F04B49/08 ,  F15B11/05 ,  F16K11/07 ,  F15B11/042

CPC分类号： F15B11/05 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2296 ,  F04B49/08 ,  F04B2205/16 ,  F15B2211/20553 ,  F15B2211/25 ,  F15B2211/30505 ,  F15B2211/30555 ,  F15B2211/3116 ,  F15B2211/3122 ,  F15B2211/35 ,  F15B2211/6054 ,  F15B2211/67 ,  F15B2211/75 ,  Y10T137/87169 ,  Y10T137/87185

摘要： The present invention is directed to a hydraulic pressure control device which can overcome problems, such as a shock to an actuator or a pressure boost phenomenon involving a rapid increase in pump delivery pressure, conventionally encountered when a directional control valve is switched. The hydraulic pressure control device is constructed such that first and second connecting ports are connected to a tank when a directional control valve is in its neutral position, one of the first and second connecting ports is cut off from the tank and connected to an actuator and the other is cut off from the tank and closed when the directional control valve has been switched, in accordance with a position to which the directional control valve has been switched, and a maximum pilot pressure selectively taken from between a pressure compensating valve and a pair of check valves is introduced into a pilot line.

摘要翻译： 本发明涉及一种液压控制装置，其可以克服诸如对致动器的冲击，或者涉及在方向控制阀被切换时通常遇到的泵输送压力的急剧增加的压力升高现象的问题。 液压控制装置构造成使得当方向控制阀处于其中立位置时，第一和第二连接端口连接到罐，第一和第二连接端口中的一个从罐被切断并连接到致动器， 根据切换方向控制阀的位置和选择性地从压力补偿阀和一对之间取出的最大先导压力，当方向控制阀已切换时，另一个从油箱切断并关闭 止回阀被引入到先导管路中。

公开(公告)号：USRE40830E1

公开(公告)日：2009-07-07

申请号：US11152834

申请日：2005-06-15

申请人： Jean-Luc Caillat

发明人： Jean-Luc Caillat

IPC分类号： F04B49/00

CPC分类号： F04C28/24 ,  F04B49/06 ,  F04B49/225 ,  F04B2201/0601 ,  F04B2205/16 ,  F04B2207/043 ,  F04C2270/58 ,  F25B41/043 ,  F25B2600/2521

摘要： A pulsed modulated capacity modulation system for refrigeration, air conditioning or other types of compressors is disclosed in which suitable valving is provided which operates to cyclically block flow of suction gas to a compressor. A control system is provided which is adapted to control both the frequency of cycling as well as the relative duration of the on and off time periods of each cycle in accordance with sensed system operating conditions so as to maximize the efficiency of the system. Preferably the cycle time will be substantially less than the time constant of the load and will enable substantially continuously variable capacity modulation from substantially zero capacity to the full capacity of the compressor. Additional controls may be incorporated to modify one or more of the motor operating parameters to improve the efficiency of the motor during periods of reduced load.

摘要翻译： 公开了一种用于制冷，空调或其它类型的压缩机的脉冲调制容量调制系统，其中提供了合适的阀门，其循环地阻止吸入气体到压缩机的流动。 提供一种控制系统，其适于根据感测的系统操作条件来控制循环的频率以及每个循环的开启和关闭时间段的相对持续时间，以便最大化系统的效率。 优选地，循环时间将显着小于负载的时间常数，并且将使基本上可变的容量调节从基本上零容量到压缩机的全部容量。 可并入附加控制以修改电动机操作参数中的一个或多个，以在减小负载期间提高电动机的效率。

公开(公告)号：US06446433B1

公开(公告)日：2002-09-10

申请号：US09661714

申请日：2000-09-14

申请人： Bradford J. Holt ,  John J. Krone ,  Douglas W. Koehler ,  Michael A. Cobo

发明人： Bradford J. Holt ,  John J. Krone ,  Douglas W. Koehler ,  Michael A. Cobo

IPC分类号： F16D3102

CPC分类号： F15B21/087 ,  F04B49/065 ,  F04B49/225 ,  F04B2205/16 ,  F04B2205/172 ,  F15B11/006 ,  F15B11/08 ,  F15B21/008 ,  F15B21/08 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/327 ,  F15B2211/35 ,  F15B2211/6303 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/853

摘要： A hydraulic control system having a pump for delivering fluid under pressure from a fluid reservoir, a hydraulic actuator selectively driven by the fluid, the system comprises a main flow control valve connected between the pump and the actuator for selectively providing the fluid to and from the actuator, and a control unit connected to the main flow control valve for controlling operation of the main flow control valve to control the rate of change of the area of the main flow control valve relative to the delivery of fluid from the pump, and the control unit connected to the pump to increase or decrease the actual pump command proportional to the inverse of the pump command.

摘要翻译： 一种具有用于在压力下从流体储存器输送流体的泵的液压控制系统，由流体选择性驱动的液压致动器，所述系统包括连接在泵和致动器之间的主流量控制阀，用于选择性地将流体提供到和 致动器和连接到主流量控制阀的控制单元，用于控制主流量控制阀的操作，以控制主流量控制阀相对于来自泵的流体输送的面积的变化率，并且控制 连接到泵的单元增加或减少与泵命令的倒数成比例的实际泵命令。

公开(公告)号：US06004103A

公开(公告)日：1999-12-21

申请号：US886655

申请日：1997-07-01

申请人： Lynn Edwin Fisher ,  James V. Yu

发明人： Lynn Edwin Fisher ,  James V. Yu

IPC分类号： F04B49/02

CPC分类号： F04B49/02 ,  F04B2203/0207 ,  F04B2205/16

摘要： An air compressor system having an actuator for controlling the energization of the primary and start windings of the compressor motor and the state of a relief valve is disclosed. No power is applied to either of the windings and said valve is closed when the actuator is disposed in the first position. Movement of the actuator to the second position energizes both of the windings and opens the relief valve so that the motor and compressor can reach full speed before a load is applied. When the actuator is released and moved to the third position, the start winding is deenergized and the relief valve is closed to allow an air storage tank to be filled.

摘要翻译： 公开了一种空气压缩机系统，其具有用于控制压缩机电动机的初级绕组和起动绕组的通电的致动器以及安全阀的状态。 任何一个绕组都不施加电力，而当致动器处于第一位置时，所述阀门关闭。 致动器到第二位置的运动激励两个绕组，并打开安全阀，使得马达和压缩机在施加负载之前可以达到全速。 当致动器被释放并移动到第三位置时，启动绕组被断电并且安全阀关闭以允许空气储存器被填充。

公开(公告)号：US5879136A

公开(公告)日：1999-03-09

申请号：US687511

申请日：1996-08-01

申请人： Walter Robeller ,  Berthold Pfuhl ,  Volkmar Leutner ,  Dieter Bertsch ,  Joachim Zumbraegel

发明人： Walter Robeller ,  Berthold Pfuhl ,  Volkmar Leutner ,  Dieter Bertsch ,  Joachim Zumbraegel

IPC分类号： F04B11/00 ,  F04B49/06 ,  F04B49/08 ,  F04B49/00

CPC分类号： F04B49/06 ,  F04B11/00 ,  F04B49/08 ,  F04B2201/0804 ,  F04B2201/1205 ,  F04B2205/16

摘要： An electro hydraulically adjustable pump has an adjustment member which is adjustable by at least one adjustment piston, a control valve which acts upon the at least one adjusting piston, a servo amplifier which triggers the control valve and which is supplied with an actual value of a pump adjustment and an actual value of a control valve adjustment, and an element which produces an additional pulse-shape adjusting signal as a function of an angle of rotation of the pump so as to control the control valve through the servo amplifier by the additional pulse-shaped adjustment signal.

摘要翻译： PCT No.PCT / DE95 / 00402 Sec。 371日期：1996年8月1日 102（e）日期1996年8月1日PCT 1995年3月23日PCT PCT。 出版物WO95 / 26470 日期1995年10月5日电液压可调节泵具有可由至少一个调节活塞调节的调节构件，作用于至少一个调节活塞的控制阀，触发控制阀并且被供给的伺服放大器 泵调节的实际值和控制阀调节的实际值，以及产生作为泵的旋转角度的函数的附加脉冲形状调节信号的元件，以通过伺服来控制控制阀 放大器由附加的脉冲形调整信号。

公开(公告)号：US3957395A

公开(公告)日：1976-05-18

申请号：US526716

申请日：1974-11-25

申请人： Harold W. Ensign

发明人： Harold W. Ensign

IPC分类号： F04B49/02 ,  F04B49/06 ,  F04B49/10 ,  F04B49/00 ,  F04B49/08

CPC分类号： F04B49/065 ,  F04B49/022 ,  F04B49/10 ,  F04B2205/09 ,  F04B2205/16

摘要： A safety control system for a pump and anti-surge valve protects the pump, the valve and the hydraulic main line system. The valve is controlled by a pressure responsive circuit and, via a limit switch on the valve, controls both the steady state running of the pump and the pump start. A timed start circuit allows pressure to build up sufficiently to operate the valve upon initiation of pump operation. The system automatically shuts down upon power, mechanical or hydraulic failure, and prevents continued operation of the pump control valve when the pump has lost suction or there is a decrease in pump discharge pressure.

摘要翻译： 泵和防喘振阀的安全控制系统保护泵，阀门和液压主线系统。 该阀由压力响应电路控制，并且通过阀上的限位开关来控制泵的稳定运行和泵的启动。 定时启动电路允许在泵运行开始时充分地建立压力以操作阀。 系统在动力，机械或液压故障时自动关闭，并且当泵已经吸入或泵排出压力降低时，防止泵控制阀继续运行。

公开(公告)号：US3930752A

公开(公告)日：1976-01-06

申请号：US469264

申请日：1974-05-13

申请人： Bobby L. Douglas

发明人： Bobby L. Douglas

IPC分类号： E21B47/00 ,  F04B47/02 ,  F04B49/02 ,  F04B49/06 ,  F04B49/10 ,  F04B49/00

CPC分类号： F04B49/106 ,  E21B47/0008 ,  F04B47/02 ,  F04B49/02 ,  F04B49/06 ,  F04B2201/02071 ,  F04B2205/13 ,  F04B2205/16 ,  F04B2207/043

摘要： A valve in the production flow line of an oil well closes a reed switch indicative of fluid being pumped through the line. The switch closure activates a first oscillator whose count is compared with a variable frequency oscillator having a frequency of approximately one-half that of the first oscillator. The comparison is made over a given period of time to ascertain the percentage of time the valve has been open and passing fluid. Theoretically, the valve should be open approximately fifty percent of the time because almost that much time is taken on the downstroke of the pumping assembly when no production is occurring. The integrated timer is adjusted to shut down the system when the percentage of time the valve is open drops to the preselected amount, usually equal to or less than around 50 percent. In response to the integration timer producing a signal, a shutdown timer is turned on which restarts the cycle after a preselected amount of time. The length of shutdown time for the pumping unit is preset according to the well fill-in rate. When the system is restarted by the shutdown timer, a pump-up timer is turned on which is adjusted to allow for a desired pump-up time. As the pump-up timer is allowing the system to recycle, the integration timer is reset and the recycling is completed if the requirements of the integration timer are met. Otherwise, the unit is shut down again and the system recycled. A variable electronic scaler is connected to the output of the integration timer which monitors the output signals from this timer.A reset circuit between the integrator and the scaler resets the scaler to zero after a successful recycle of the system. A successful recycle occurs when fluid is pumped at a flow rate equal to or greater than the preset minimum when the pump has been restarted after a shutdown period. If the pumped fluid flow rate achieves the minimum preset flow value during or at the end of the pump-up period, a reset signal is conveyed to the scaler to reset it to zero and continue pump operation and system recycling indefinitely, or until malfunctions interfere with the pumping operation or production drops below a level economically feasible for pumping operations.When malfunctions do occur, such as parting of the sucker rod, the pumped fluid flow rate will remain below the desired preset value and no reset signal will be conveyed to the scaler. At the end of the pump-up cycle the pump will not be pumping fluids and will be shut down in response to the signal from the integrator assembly. Since there will be no reset signal to the scaler, it will begin to accumulate the shutdown signals. After the preset number of times the integration timer produces a shutdown signal, the scaler turns off the whole system. It can then be restarted manually. This provides a safety device for equipment failure such as breaking of the sucker rod. Means are also provided for recording the various timed cycles and also for monitoring the number of signals transmitted to the scaler, thus being indicative of the number of times the system has automatically shut down and successfully recycled.Also a circuit is provided to determine the exact percentage of time that the pump is producing fluid flow, whether above or below the preset minimum percentage. A continuous recorder may be used with this circuit to maintain a constant record of the percentage of time the pump is flowing well fluids to allow the operator to determine if the preset minimum percentage should be lowered, and how much it should be lowered to obtain successful recycling of the pumping system.

摘要翻译： 油井生产流水线中的阀门关闭一个指示流经泵管的流体的簧片开关。 开关闭合激活第一振荡器，其计数与具有大约是第一振荡器的一半的频率的可变频率振荡器进行比较。 在给定的时间内进行比较，以确定阀门打开和通过流体的时间百分比。 理论上，阀门应该打开大约五十分之一的时间，因为当没有生产出现时，抽油机组的下行行程几乎花了很多时间。 当阀门打开的时间百分比下降到预先选定的数量时，通常调整关闭系统的时间，通常等于或小于约50％。 响应于产生信号的积分定时器，关闭定时器被打开，在预选的时间量之后重新启动循环。 抽油机的停机时间长短根据井填充率预先设定。 当系统由关机定时器重新启动时，启动一个抽油定时器，该定时器被调节以允许期望的泵送时间。 由于泵送定时器允许系统回收，集成定时器被复位，并且如果要求的话，回收完成

公开(公告)号：US3830594A

公开(公告)日：1974-08-20

申请号：US37361273

申请日：1973-06-25

申请人： CATERPILLAR TRACTOR CO

发明人： HEIN A ,  NORICK W ,  RUSEFF W ,  TRIBLEY G

IPC分类号： F04B1/32 ,  F04B49/00 ,  F04B49/08 ,  F04B21/00

CPC分类号： F04B1/324 ,  F04B49/002 ,  F04B49/08 ,  F04B2205/05 ,  F04B2205/16

摘要： A variable displacement pump of the type having a plurality of rotatable, axially-aligned pistons guided by a pivotal swash plate for enabling adjustment of displacement and also having a variable cutoff pressure compensator control means whereby the swash plate is variably shifted to its minimum displacement position so as to achieve a variable cutoff of pump flow. The pressure compensator control means also shifts the swash plate to its minimum displacement position when a predetermined maximum pressure is reached or when the pump load is in a neutral condition, thereby curtailing heat generation and horsepower loss.

摘要翻译： 一种可变排量泵，其具有由枢转斜盘引导的多个可旋转的轴向对准的活塞，用于能够调节位移，并且还具有可变截止压力补偿器控制装置，由此斜盘可变地移动到其最小位移位置 从而实现泵流量的可变截止。 当达到预定的最大压力或者当泵载荷处于中立状态时，压力补偿器控制装置也将斜盘移动到其最小位移位置，从而减少发热和马力损失。

公开(公告)号：US20240328530A1

公开(公告)日：2024-10-03

申请号：US18674405

申请日：2024-05-24

申请人： Ingersoll-Rand Industrial U.S., Inc.

发明人： Vineeth Poulose ,  Sajesh Poolathody ,  Nikhil Narayanan

IPC分类号： F16K31/08 ,  F04B49/22 ,  F04B49/24 ,  F04C18/107 ,  F04C28/24 ,  F04C28/26 ,  F04C29/12 ,  F16K27/02

CPC分类号： F16K31/086 ,  F04B49/225 ,  F04B49/243 ,  F04C18/107 ,  F04C28/24 ,  F04C28/26 ,  F04C29/124 ,  F16K27/029 ,  F04B2205/02 ,  F04B2205/16

摘要： A fluid compressor system having an electro-magnetic throttle valve (EMTV) that utilizes magnetic forces supplied by an electromagnet to actuate the opening and closing of the valve. The fluid compressor system may include a control system that controls the position of a valve plate of the EMTV, allowing the EMTV to fully or partially actuate to a plurality of intermediate positions depending on a current supplied to the electromagnet by the control system. The control system may control a location of the valve plate with reference to the electromagnet by balancing the forces acting on the valve plate, such as electromagnetic forces supplied by the electromagnet, biasing forces supplied by biasing components, and gravitational forces acting on the valve plate. The EMTV may include a blowdown system configured to release a pressure within the fluid compressor system when the inlet on the EMTV is closed.