专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US06089248A Load sense pressure controller 有权
标题翻译：负载感应压力控制器
公开(公告)号：US06089248A
公开(公告)日：2000-07-18
申请号：US212246
申请日：1998-12-16
申请人： Alvin S. Rost
发明人： Alvin S. Rost
IPC分类号： E02F9/22 , F15B11/16 , G05D7/00
CPC分类号： E02F9/2267 , E02F9/2225 , E02F9/2271 , E02F9/2296 , F15B11/165 , F04B2205/09 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/30555 , F15B2211/3127 , F15B2211/3144 , F15B2211/31576 , F15B2211/324 , F15B2211/6051 , F15B2211/6055 , F15B2211/653 , F15B2211/7054 , Y10T137/2587 , Y10T137/87185
摘要： DANA 90 A load sense pressure controller used with a hydraulic control valve such as a hydraulic direction control valve includes a body in the form of a barrel having a threaded first end and a threaded second end. An externally threaded first plug is threaded into the first end of the body and an externally threaded second plug is threaded into the second end of the body. Both first and second plugs each have passages therethrough wherein the passage through the first plug is connected to the load sense passage from a valve and the passage through the second plug is connected to a tank passage in the control valve. Disposed between the first and second plugs is a piston which is biased by a coil spring toward the first plug. The piston has a stepped axially extending passage extending therethrough which is intersected by a radially extending passage. The radially extending passage normally aligns with lateral openings in the body so that when there is a load sense condition, hydraulic fluid flows through lateral openings in the body to the return passage. If the load sense pressure exceeds a selected high pressure, then all of the load sense fluid is throttled through the pressure controlling orifice in the piston to the tank passage of the control valve.
摘要翻译： DANA 90与液压控制阀（例如液压方向控制阀）一起使用的负载感测压力控制器包括具有螺纹第一端和带螺纹第二端的筒体形式的主体。外螺纹的第一塞子被拧入主体的第一端，并且外螺纹的第二塞子被拧入主体的第二端。第一和第二插塞各自具有通过其中的通道，其中通过第一插塞的通道从阀连接到负载感测通道，并且通过第二插塞的通道连接到控制阀中的箱通道。设置在第一和第二塞子之间的是由螺旋弹簧朝向第一塞子偏置的活塞。活塞具有延伸穿过其中的阶梯状轴向延伸的通道，其与径向延伸的通道相交。径向延伸的通道通常与主体中的侧向开口对准，使得当存在负载感测状态时，液压流体流过体内的侧向开口到返回通道。如果负载感测压力超过所选择的高压，则所有负载感测流体通过活塞中的压力控制孔节流到控制阀的油箱通道。

72. 发明授权

US5947228A Hydraulic power steering system for a vehicle 失效
标题翻译：液压动力转向系统
公开(公告)号：US5947228A
公开(公告)日：1999-09-07
申请号：US695289
申请日：1996-08-09
申请人： Adriano Rolando
发明人： Adriano Rolando
IPC分类号： B62D5/06 , B62D5/065 , F15B11/05
CPC分类号： F15B11/05 , B62D5/062 , B62D5/065 , F15B2211/20523 , F15B2211/20553 , F15B2211/255 , F15B2211/30525 , F15B2211/3122 , F15B2211/3144 , F15B2211/324 , F15B2211/326 , F15B2211/35 , F15B2211/6051 , F15B2211/6054 , F15B2211/6355 , F15B2211/7054
摘要： A hydraulic power steering system for a vehicle comprising a hydraulic fluid displacement pump, operated by a thermal engine of the vehicle and provided with a suction port and a delivery port, a reservoir for collecting said fluid, connected to suction port, a double-acting hydraulic cylinder, capable of controlling direction of front wheels of the vehicle, and a distribution unit fitted with an inlet port, connected to delivery port, a vent port, connected to reservoir and two service ports, connected to respective chambers of hydraulic cylinder; distribution unit comprising a first and a second distributor, respectively controlled by hydraulic cylinder and by a steering wheel of the vehicle and movable with respect to each other; pump being of the variable displacement type and system further comprising a flow request sensor from and to chambers of cylinder and a device for adjusting displacement of pump, controlled by sensor.
摘要翻译：一种用于车辆的液压动力转向系统，包括由车辆的热力发动机操作并设置有吸入口和输送口的液压流体排量泵，用于收集与吸入口连接的所述流体的储存器，双作用液压缸，其能够控制车辆的前轮的方向;以及分配单元，其配备有连接到液压缸的相应室的与输送口连接的排出口，连接到储存器和两个维修口的入口; 分配单元包括由液压缸和车辆的方向盘分别控制并可相对于彼此移动的第一和第二分配器; 泵是可变排量型和系统，其还包括来自气缸的腔室的流量请求传感器和用于调节由传感器控制的泵的位移的装置。

73. 发明授权

US5937646A Hydraulic charge boost system for a gantry crane 失效
标题翻译：龙门起重机液压增压系统
公开(公告)号：US5937646A
公开(公告)日：1999-08-17
申请号：US890019
申请日：1997-07-10
申请人： Daniel Brian Zakula
发明人： Daniel Brian Zakula
IPC分类号： F15B11/042 , F15B11/17 , F16D31/02
CPC分类号： F15B11/0426 , F15B11/17 , F15B2211/20553 , F15B2211/20576 , F15B2211/30505 , F15B2211/3052 , F15B2211/50545 , F15B2211/5059 , F15B2211/6051 , F15B2211/615 , F15B2211/7053
摘要： In a hydraulic cylinder actuation system for a crane having a conventionally charged main hydraulic pump, a supplemental pump or "charge boost" pump is provided. To efficiently achieve fast actuation speeds of the cylinder, the charge boost pump provides supplemental charge flow in response to a need in the system. The charge boost pump is driven independently from the main pump or may be driven by the main pump if the main pump is equipped with drive thru capability to provide a variable output and preferably includes a load sensing means for controlling the output.
摘要翻译：在具有常规充电的主液压泵的起重机的液压缸致动系统中，提供补充泵或“增压”泵。为了有效地实现气缸的快速致动速度，充电增压泵响应于系统中的需要而提供补充充电流。如果主泵具有提供可变输出的驱动能力，并且优选地包括用于控制输出的负载感测装置，则增压泵独立于主泵驱动，或者可以由主泵驱动。

74. 发明授权

US5282363A Hydraulic circuit for running a crawler vehicle 失效
标题翻译：用于运行履带车的液压回路
公开(公告)号：US5282363A
公开(公告)日：1994-02-01
申请号：US815023
申请日：1991-12-31
申请人： Kazunori Ogawa , Takuma Endo , Hisashi Nakashima , Yoji Asano
发明人： Kazunori Ogawa , Takuma Endo , Hisashi Nakashima , Yoji Asano
IPC分类号： B62D11/08 , B60K17/10 , B62D11/02 , B62D11/18 , E02F9/12 , E02F9/22 , F15B11/044 , F16D31/02 , B62D11/00
CPC分类号： F16H61/4061 , B60K17/10 , B62D11/02 , B62D11/183 , E02F9/123 , E02F9/22 , E02F9/2253 , E02F9/2267 , E02F9/2275 , F15B11/0445 , F15B2211/20538 , F15B2211/20576 , F15B2211/3127 , F15B2211/327 , F15B2211/50527 , F15B2211/50545 , F15B2211/5154 , F15B2211/6051 , F15B2211/6355 , F15B2211/7058 , F15B2211/71
摘要： A hydraulic circuit for running a crawler vehicle which comprises a running frame portion provided with motors for running the crawler vehicle and an upper swivel portion turnably disposed on the running frame portion via a swivel joint. Electro-magnetic proportional flow directional control valve (a directional control valves) (15) for controlling the running motors are disposed between the swivel joint (41) and the running motors (19). The number of the high pressure passages in the swivel joint (41) can be reduced, because of increase of pressure resistance, the size of the swivel joint can be small, and accordingly, the hydraulic circuit for running a crawler vehicle can be inexpensive, and possibility for leakage of pressure oil becomes low.
摘要翻译：一种履带式履带车用液压回路，其特征在于，包括具有运行所述履带式车辆的电动机的行走机架部和经由旋转接头可转动地设置在所述行走架部上的上部旋转部。用于控制运行马达的电磁比例流量方向控制阀（方向控制阀）（15）设置在旋转接头（41）和行进马达（19）之间。旋转接头（41）中的高压通道的数量可以由于耐压性的提高而减小，所以旋转接头的尺寸可以小，因此，用于履带式履带式履带的液压回路便宜，并且压力油泄漏的可能性变低。

75. 发明授权

US5083430A Hydraulic driving apparatus 失效
标题翻译：液压驱动装置
公开(公告)号：US5083430A
公开(公告)日：1992-01-28
申请号：US439389
申请日：1989-11-13
申请人： Toichi Hirata , Hideaki Tanaka , Genroku Sugiyama , Yusaku Nozawa
发明人： Toichi Hirata , Hideaki Tanaka , Genroku Sugiyama , Yusaku Nozawa
IPC分类号： E02F9/22 , F15B11/16 , F15B13/04
CPC分类号： F15B11/165 , E02F9/2225 , E02F9/2232 , E02F9/2296 , F15B11/163 , F15B13/0417 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/30535 , F15B2211/3055 , F15B2211/3111 , F15B2211/324 , F15B2211/351 , F15B2211/353 , F15B2211/6051 , F15B2211/6054 , F15B2211/7053 , F15B2211/7135 , Y10T137/87193
摘要： A hydraulic driving apparatus has at least one hydraulic pump, a plurality of hydraulic actuators driven by hydraulic fluid discharged from the hydraulic pump, a tank to which return fluid from the plurality of hydraulic actuators is discharged, and a flow control valve associated with each of the plurality of hydraulic actuators. The flow control valve has a first main variable restrictor for controlling flow rate of the hydraulic fluid supplied from the hydraulic pump to the hydraulic actuator, and a second main variable restrictor for controlling flow rate of the return fluid discharged from the hydraulic actuator to the tank. A pump control operative in response to the difference between the discharge pressure of the hydraulic pump and the maximum load pressure of the hydraulic actuators normally controls the discharge rate of the hydraulic pump so that the pump discharge pressure is raised more than the maximum load pressure by a predetermined value. A first pressure-compensating control operates with a valve determined by the difference between the pump discharge pressure and the maximum load pressure, the value acting as a compensating differential-pressure target value, and pressure-compensation-controls the first main variable restrictor of the flow control valve. A second pressure-compensating control is operative with a value determined by the pressure difference across the first main variable restrictor, the valve acting as a compensating differential-pressure target value, for controlling the second main variable restrictor of the flow control valve.

76. 发明授权

US4976106A Load-sensing variable displacement pump controller with adjustable pressure-compensated flow control valve in feedback path 失效
标题翻译：负载感应可变排量泵控制器，在反馈路径中具有可调压力补偿流量控制阀
公开(公告)号：US4976106A
公开(公告)日：1990-12-11
申请号：US310787
申请日：1989-02-13
申请人： Juergen Noerskau , Georg Klingenbeck
发明人： Juergen Noerskau , Georg Klingenbeck
IPC分类号： F15B11/00 , E02F9/22 , F15B11/05
CPC分类号： E02F9/2296 , E02F9/2232 , F15B11/055 , F15B2211/20553 , F15B2211/253 , F15B2211/6051 , F15B2211/6055
摘要： A hydraulic switching system has an adjustable delivery volume pump connected to a pump regulating unit that is controlled by a load-sensing regulator. The load-sensing regulator is connected to a control pressure line that carries the maximum hydraulic energy consumer pressure required by at least one hydraulic energy consumer. The hydraulic energy consumer connected to the pump is controlled by a multiway valve having a given adjustment path. In order to increase the fine-controllability of the hydraulic energy consumer when desired, a pressure-compensated flow control valve which is located in the control pressure line is switched in and out of the system.
摘要翻译：液压开关系统具有连接到由负载传感调节器控制的泵调节单元的可调输送体积泵。负载感测调节器连接到控制压力线，其承载至少一个液压能量消耗器所需的最大液压能量消耗压力。连接到泵的液压能量消耗器由具有给定调节路径的多通阀控制。为了在需要时提高液压消耗装置的精细控制性，将位于控制压力线上的压力补偿型流量控制阀切换进入系统。

77. 发明授权

US4121501A Flow combining system for dual pumps 失效
标题翻译：双泵流量组合系统
公开(公告)号：US4121501A
公开(公告)日：1978-10-24
申请号：US814379
申请日：1977-07-11
申请人： Lloyd D. Finley
发明人： Lloyd D. Finley
IPC分类号： F15B11/17 , F15B13/09
CPC分类号： F15B11/17 , F15B2211/20576 , F15B2211/30505 , F15B2211/3116 , F15B2211/324 , F15B2211/50536 , F15B2211/6051 , F15B2211/7142 , F15B2211/78
摘要： A fluid circuit connects a first pump to a first motor and has a control valve for controlling fluid flow to the first motor. The control valve is movable between a first position at which the first pump is blocked from communication with the first motor, a second position at which fluid flow to the motor is controllably modulated and a third position at which substantially the full output of the first pump is directed to the first motor. A valve device connects a second pump to the fluid circuit and is movable between a first position at which the second pump is in communication with a tank and a second position at which the output of the second pump is combined with the output of the first pump. The valve device is moved to the second position in response to the control valve being moved from said second position toward said third position.
摘要翻译：流体回路将第一泵连接到第一马达，并具有用于控制流向第一马达的流体的控制阀。控制阀可在第一位置与第一电动机相连接的第一位置和第一位置之间移动，第二位置可控制地调节流向电动机的流体流动;第三位置，基本上第一泵的全部输出被引导到第一马达。阀装置将第二泵连接到流体回路，并且可在第二泵与罐连通的第一位置和第二位置之间移动，在第二位置，第二泵的输出与第一泵的输出相结合。响应于控制阀从所述第二位置向所述第三位置移动，阀装置移动到第二位置。

78. 发明授权

US3763746A Hydraulic actuator controls 失效
标题翻译：液压执行器控制
公开(公告)号：US3763746A
公开(公告)日：1973-10-09
申请号：US3763746D
申请日：1971-09-13
申请人： SPERRY RAND LTD
发明人： WALTERS R
IPC分类号： F15B5/00 , F15B11/02 , F15B11/10 , F15B13/043
CPC分类号： F15B11/02 , F15B5/003 , F15B2211/20538 , F15B2211/20553 , F15B2211/3052 , F15B2211/30525 , F15B2211/329 , F15B2211/6051 , F15B2211/6054 , F15B2211/6355 , F15B2211/67 , F15B2211/7053 , F15B2211/76
摘要： A device for controlling the pressure of fluid applied to or the flow of fluid to a hydraulic actuator comprises a pilot valve for controlling a pressure operated main valve. A transducer converts an electrical input signal into a force which is applied to the pilot valve spool. A feedback pressure is applied to piston means on or associated with the spool to apply a force thereto in opposition to the first-mentioned force. For pressure control a pressure sensing means produces a pressure difference equal to the pressure difference between the higher and lower operating pressures of the actuator. For flow control a flow sensor produces a feedback pressure differential dependent on the flow of fluid to the actuator. Pressure and flow control can be optionally obtained by providing two pilot valves in series, one responsive to the pressure sensing means and the other responsive to the flow sensor. One of the pilot valves is set to override the feedback signal thereto, whereby the other pilot valve becomes effective as desired.
摘要翻译：用于控制施加到液压致动器的流体的压力或流体的流量的装置包括用于控制压力操作的主阀的先导阀。换能器将电输入信号转换成施加到先导阀阀芯的力。反馈压力被施加到在阀芯上或与阀芯相关联的活塞装置，以与第一提到的力相反地施加力。对于压力控制，压力感测装置产生等于致动器的较高和较低操作压力之间的压力差的压力差。对于流量控制，流量传感器根据流体流向致动器产生反馈压力差。

79. 发明授权

US3631890A Flow extending bypass valve 失效
标题翻译：流量扩大旁路阀
公开(公告)号：US3631890A
公开(公告)日：1972-01-04
申请号：US3631890D
申请日：1970-04-06
申请人： BORG WARNER
发明人： MCMILLEN KENNETH G
IPC分类号： F15B11/16 , F15B13/04 , F15B11/00
CPC分类号： F15B11/165 , F15B13/0417 , F15B2211/20538 , F15B2211/30525 , F15B2211/31576 , F15B2211/324 , F15B2211/50536 , F15B2211/5151 , F15B2211/57 , F15B2211/6051 , F15B2211/6054 , F15B2211/615 , F15B2211/7053 , F15B2211/71 , Y10S137/906 , Y10T137/87185
摘要： A load-responsive hydraulic system for controlling a fluid actuated device, including at least one manual control valve and a differential pressure actuated bypass valve adapted to bypass excess fluid at a low differential pressure when no fluid is being directed to the fluid actuated device. The bypass valve includes fluid-responsive means to automatically adjust the bypass valve to bypass fluid at a higher differential pressure when a fluid motor is actuated and thereby extend the flow capacity of the manual control valve.
摘要翻译：一种用于控制流体致动装置的载荷响应液压系统，包括至少一个手动控制阀和压差致动旁通阀，其适于在没有流体被引导到流体致动装置时以低压差旁路多余的流体。旁通阀包括流体响应装置，当流体马达被致动时，自动调节旁通阀以在更高的压差下旁路流体，从而延长手动控制阀的流量。

80. 发明授权

US3583500A Control system for high pressure control fluid 失效
标题翻译：高压控制流体控制系统
公开(公告)号：US3583500A
公开(公告)日：1971-06-08
申请号：US3583500D
申请日：1969-04-01
申请人： PAN AMERICAN PETROLEUM CORP
发明人： RANDALL BILLY V , VINCENT RENIC P
IPC分类号： E21B21/08 , E21B33/06 , F15B11/032 , F15B11/072 , E21B21/04
CPC分类号： E21B33/06 , E21B21/08 , F15B11/032 , F15B11/0725 , F15B2211/20538 , F15B2211/214 , F15B2211/25 , F15B2211/30525 , F15B2211/50536 , F15B2211/50554 , F15B2211/5151 , F15B2211/528 , F15B2211/55 , F15B2211/565 , F15B2211/6051 , F15B2211/7052
摘要： A pressure multiplying apparatus for supplying, at a regulated pressure, a control fluid in a closed system to control a device such as a hydraulically operated valve. The system is used to control either 1; automatic blowout control devices around a drilling well or 2; to use such control equipment to control the pressure on the drill string used to drill the well. Such system includes a pump for supplying the control liquid to the valve being controlled at a pressure which is a constant factor greater than the pressure of the gas used to power the pump. Valve means are provided to bleed the pressure of the control fluid proportionally to the lowering of the pressure of the power gas. This includes a differential piston exposed on one side to the pressure of the power air and on the other side to the pressure of the control fluid from the pump. The two areas of the differential piston have approximately the same ratio as the multiplying pressure factor of the pump. Means are further provided so that a constant drill pipe pressure can be maintained by using the pressure of the fluid in the drill pipe to regulate the control fluid.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式