专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06804956B2 Hydraulic steering system 有权
标题翻译：液压转向系统
公开(公告)号：US06804956B2
公开(公告)日：2004-10-19
申请号：US10405315
申请日：2003-04-02
申请人： Poul Henning Holm Pedersen , Jørgen Clausen , Bjarne Schmidt
发明人： Poul Henning Holm Pedersen , Jørgen Clausen , Bjarne Schmidt
IPC分类号： F16D3102
CPC分类号： B62D5/097 , B62D5/07 , B62D5/32
摘要： A hydraulic steering system (1) with a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), and with a working connection arrangement (L, R), a directional valve (2) and a metering pump unit (3, 4) being arranged between the supply connection arrangement and the working connection arrangement, the metering pump arrangement having at least two hydraulically parallel-connected and mechanically parallel-operated metering pumps (3, 4) with a shut-off valve (6) in a hydraulic connection between the two metering pumps (3, 4), said shut-off valve (6) having a return spring (16) and a first control inlet (15) that is connected with the high-pressure connection (P).
摘要翻译：一种具有供应连接装置的液压转向系统（1），具有高压连接（P）和低压连接（T），并具有工作连接装置（L，R），方向阀（2）以及计量泵单元（3,4），其布置在所述供应连接装置和所述工作连接装置之间，所述计量泵装置具有至少两个液压平行连接和机械并联操作的计量泵（3,4），其具有关闭在两个计量泵（3,4）之间的液压连接中的所述截止阀（6），所述截止阀（6）具有复位弹簧（16）和与高压连接的第一控制入口（15）压力连接（P）。

2. 发明授权

US06775974B2 Velocity based method of controlling an electrohydraulic proportional control valve 失效
标题翻译：控制电液比例控制阀的基于速度的方法
公开(公告)号：US06775974B2
公开(公告)日：2004-08-17
申请号：US10254170
申请日：2002-09-25
申请人： Keith A. Tabor
发明人： Keith A. Tabor
IPC分类号： F16D3102
CPC分类号： F15B9/09 , F15B11/006 , F15B2211/30575 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/63 , F15B2211/6309 , F15B2211/6313 , F15B2211/6654 , F15B2211/6658 , F15B2211/7053 , F15B2211/71 , F15B2211/75 , F15B2211/78 , F15B2211/88 , G05B19/43 , G05B2219/41273 , G05B2219/41311 , G05B2219/41318
摘要： An actuator is part of a hydraulic circuit branch that has a first electrohydraulic proportional valve connecting the actuator to a supply line containing pressurized fluid and a second electrohydraulic proportional valve connecting the actuator to a tank return line. A method for operating the valves includes requesting a desired velocity for the hydraulic actuator and sensing a parameter which varies with changes of a force on the actuator. The desired velocity and the parameter are used to derive an equivalent flow coefficient which characterizes fluid flow in the hydraulic circuit. From the equivalent flow coefficient, first and second valve flow coefficient are derived and then employed to activate each of the first and second electrohydraulic proportional valves. The coefficients may characterize either conductance or restriction in the respective part of the hydraulic system.
摘要翻译：致动器是液压回路分支的一部分，其具有将致动器连接到包含加压流体的供给管线的第一电液比例阀和将致动器连接到罐返回管线的第二电液比例阀。用于操作阀的方法包括为液压致动器请求期望的速度并感测随着致动器上的力的变化而变化的参数。所需的速度和参数用于导出表征液压回路中流体流动的等效流量系数。从等效流量系数得出第一和第二阀流量系数，然后用于激活第一和第二电液比例阀中的每一个。系数可以表征液压系统的相应部分中的电导或限制。

3. 发明授权

US06766643B2 Wind and wave energy plant 有权
标题翻译：风浪电力厂
公开(公告)号：US06766643B2
公开(公告)日：2004-07-27
申请号：US10240544
申请日：2002-10-02
申请人： Henrik Frans Christensen
发明人： Henrik Frans Christensen
IPC分类号： F16D3102
CPC分类号： F03D9/008 , F03B13/147 , F03B13/22 , F03D9/007 , F03D9/25 , F03D13/25 , F05B2240/95 , Y02E10/38 , Y02E10/725 , Y02P80/158
摘要： A wind and wave energy plant (1) comprises a windmill with a rotor (3) and a wave-actuated water pump that can drive a turbine whose output shaft is in driving connection with an electric generator. The windmill includes a tubular mill tower (2), which is firmly anchored to the seabed and encloses a storage tank between the sea surface and the mill rotor (3), which tank can be filled with water by means of the pump via a non-return valve, and from which water can be led to the turbine.
摘要翻译：风能和能源设备（1）包括具有转子（3）的风车和能够驱动其输出轴与发电机驱动连接的涡轮机的波浪式水泵。风车包括一个管状的塔式塔架（2），它牢固地固定在海床上，并在海面和磨机转子（3）之间包围一个储罐，该储罐可以用泵通过非水 - 返回阀，并且可以从哪个水引导到涡轮机。

4. 发明授权

US06751954B2 Compact hybrid actuator 有权
标题翻译：紧凑型混合动力执行器
公开(公告)号：US06751954B2
公开(公告)日：2004-06-22
申请号：US10287269
申请日：2002-11-04
申请人： Keith Bridger , Arthur V. Cooke , Frank J. Crowne , Joseph J. Lutian , John M. Sewell , George L. Small, III
发明人： Keith Bridger , Arthur V. Cooke , Frank J. Crowne , Joseph J. Lutian , John M. Sewell , George L. Small, III
IPC分类号： F16D3102
CPC分类号： F15B15/18 , B64C13/40 , B64C13/50 , F15B1/024 , F15B9/09
摘要： A compact hybrid actuator has a fluid pump (20) arranged to supply fluid to an actuator (44). The pump has at least one electrically-powered solid-state pump driver (21) provided with a displacement element (22). The position of this displacement element modulates the volume of a fluid chamber (23). A driven valve (24) is operatively arranged to control the flows of fluid with respect to the pump chamber, and has one member (29) movable relative to a body (28) to modulate the opening of ports (25, 26) so as to form at least one three-way valve. A valve driver (31) is operatively arranged to operate the driven valve. Electrical power is provided to each valve and to the valve driver so as to operate these various elements in synchronism with one another. The improved pump driver and driven valve may be operated at frequencies in excess of 1 kHz.
摘要翻译：紧凑型混合式致动器具有设置成向致动器（44）供应流体的流体泵（20）。泵具有至少一个设置有位移元件（22）的电动固态泵驱动器（21）。该位移元件的位置调节流体室（23）的体积。从动阀（24）可操作地布置成控制流体相对于泵室的流动，并且具有相对于主体（28）可移动的一个构件（29），以调节端口（25,26）的开口，以便以形成至少一个三通阀。阀驱动器（31）可操作地布置成操作从动阀。向每个阀和阀驱动器提供电力，以便彼此同步地操作这些各种元件。改进的泵驱动器和从动阀可以在超过1kHz的频率下操作。

5. 发明授权

US06748739B1 Hydraulic power system 有权
标题翻译：液压动力系统
公开(公告)号：US06748739B1
公开(公告)日：2004-06-15
申请号：US10031016
申请日：2002-01-10
申请人： Kenichi Hirano , Toshio Hashimoto , Shiro Hattori , Koichi Ohba
发明人： Kenichi Hirano , Toshio Hashimoto , Shiro Hattori , Koichi Ohba
IPC分类号： F16D3102
CPC分类号： F04B49/06 , F04B2203/0201 , F04B2203/0209 , F04B2207/0421 , F04B2207/0422
摘要： A hydraulic power system includes a reversible pump, a variable-speed servomotor for driving the pump, a pressure sensor for detecting load pressure, a detector for detecting the motor speed, signal command units for generating preprogrammed pressure and flow rate commands, a rotational speed controller and a signal processor. The signal processor preferentially outputs a speed command corresponding to the flow rate command by a limiter operation when the difference signal between the pressure command and the pressure detection signal is higher than a predetermined level, whereas it preferentially outputs a speed command corresponding to the difference signal when the difference signal is equal to or lower than said level. The rotational speed controller controls the magnitude of a driving current supplied to the servomotor by a closed loop on the basis of the speed command and the detected signal so that the speed of the servomotor corresponds to the speed command.
摘要翻译：液压动力系统包括可逆泵，用于驱动泵的变速伺服电动机，用于检测负载压力的压力传感器，用于检测电动机速度的检测器，用于产生预编程压力和流量命令的信号命令单元，转速控制器和信号处理器。当压力指令和压力检测信号之间的差信号高于预定电平时，信号处理器优先通过限制器操作输出与流量指令相对应的速度指令，而优先输出与差信号相对应的速度指令当差信号等于或低于所述电平时。旋转速度控制器根据速度指令和检测信号，通过闭环控制提供给伺服电动机的驱动电流的大小，使得伺服电机的速度对应于速度指令。

6. 发明授权

US06735943B1 Bypass for a hydraulic device 有权
标题翻译：旁路液压装置
公开(公告)号：US06735943B1
公开(公告)日：2004-05-18
申请号：US10465041
申请日：2003-06-19
申请人： Raymond Hauser , Lonnie E. Holder
发明人： Raymond Hauser , Lonnie E. Holder
IPC分类号： F16D3102
CPC分类号： F16H61/4043 , F16H61/40 , F16H61/42
摘要： A bypass mechanism is provided for use in a hydrostatic transmission, to enable the user to open or close a valve between the two pressure sides of the hydraulic circuit of the transmission. An electrical mechanism is positioned to open or close the valve based on a signal which may be generated by a switch associated with the hydrostatic transmission.
摘要翻译：提供了一种用于静液压传动装置的旁通机构，以使用户能够在变速器的液压回路的两个压力侧之间打开或关闭阀。电气机构被定位成基于可以由与静液压传动相关联的开关产生的信号来打开或关闭阀。

7. 发明授权

US06725658B1 Adjusting device of a swashplate piston engine 有权
标题翻译：斜盘活塞发动机的调节装置
公开(公告)号：US06725658B1
公开(公告)日：2004-04-27
申请号：US10110575
申请日：2002-08-01
申请人： Ralf Lemmen , Roland Belser , Hermann Maier
发明人： Ralf Lemmen , Roland Belser , Hermann Maier
IPC分类号： F16D3102
CPC分类号： F04B1/324 , F04B49/002 , F04B49/08
摘要： An adjusting device (1) for adjusting the swash plate (12) of an axial piston engine (1) with a swash-plate construction has an actuating piston (18) which acts on the swash plate (12) of the axial piston engine (1); and a control value (19). The control valve (19) is used to regulate the actuating pressure which is present in an actuating volume (45) and which is acting on the actuating piston (18), in accordance with a control force acting on a valve piston (20) of the control valve (19). The actuating piston (18) is structurally separate from the control valve (19) and the actuating piston (18) is connected to the valve piston (20) of the control valve (19) by a readjusting spring (34) that opposes the control force.
摘要翻译：用于利用旋转斜盘结构调节轴向活塞发动机（1）的斜板（12）的调节装置（1）具有致动活塞（18），其作用在轴向活塞发动机的斜板（12）上 1）; 和控制值（19）。控制阀（19）用于根据作用在阀活塞（20）上的控制力来调节存在于致动容积（45）中并且作用在致动活塞（18）上的致动压力控制阀（19）。致动活塞（18）在结构上与控制阀（19）分离，并且致动活塞（18）通过与控制阀（19）相对的调节弹簧（34）连接到控制阀（19）的阀活塞（20）力。

8. 发明授权

US06718763B2 Hydraulic drive unit 失效
标题翻译：液压驱动单元
公开(公告)号：US06718763B2
公开(公告)日：2004-04-13
申请号：US10231223
申请日：2002-08-30
申请人： Kazuhiro Maruta , Nobumi Yoshida
发明人： Kazuhiro Maruta , Nobumi Yoshida
IPC分类号： F16D3102
CPC分类号： F15B11/0423 , F01P7/044 , F15B2211/20538 , F15B2211/30525 , F15B2211/329 , F15B2211/40507 , F15B2211/40515 , F15B2211/40561 , F15B2211/41536 , F15B2211/45 , F15B2211/455 , F15B2211/50554 , F15B2211/50581 , F15B2211/5152 , F15B2211/6355 , F15B2211/6654 , F15B2211/7058 , F15B2211/75 , F15B2211/7741
摘要： A balance of force acting on a pool 21 of a control valve 20 is expressed by (P1−P3)·A=F+f When it is assumed that a pressure difference P1−P2 before and after a throttle 42 is &Dgr;P12 to modify the above expression, an expression &Dgr;P12·A+(P2−P3)·A=f+F is obtained. According to the present invention, the force &Dgr;P12·A corresponding to the pressure difference &Dgr;P12 before and after the second throttle 42 of the first term of the left-hand side is applied to the control valve 20 as a force capable of canceling the flow force f at the first term of the right-hand side.
摘要翻译：作用在控制阀20的水池21上的力的平衡由（P1-P3）表示.A = F + f当假设节气门42之前和之后的压力差P1-P2为ΔP12以修改得到表达式DeltaP12.A +（P2-P3）.A = f + F。根据本发明，对应于左侧第一项的第二节流阀42之前和之后的压力差ΔP12的力ΔP12.A作为能够抵消流量的力被施加到控制阀20 f在右边的第一个任期。

9. 发明授权

US06708489B2 Pneumatic actuator 失效
标题翻译：气动执行器
公开(公告)号：US06708489B2
公开(公告)日：2004-03-23
申请号：US09922133
申请日：2001-08-03
申请人： Roger Massey , David Holloway
发明人： Roger Massey , David Holloway
IPC分类号： F16D3102
CPC分类号： F15B15/065 , F15B15/17 , F15B20/004
摘要： A double-acting, piston driven actuator for providing a double action rotary powered output, having a stepped bore housing a double acting piston having a larger diameter end and a smaller diameter end therein; a three way valve selectively to supply pressurized fluid to the larger end the pressurized fluid continuously supplying the pressurized fluid to the smaller diameter portion of the bore. An optional safety mechanism having a spring biased second piston for biasing the double acting piston to a safe position upon failure of the pressurized fluid delivery system is also provided.
摘要翻译：一种用于提供双作用旋转动力输出的双作用式活塞驱动致动器，具有一个阶梯孔，其具有一个具有较大直径端和一个较小直径端的双作用活塞; 选择性地将加压流体供应到较大端的三通阀，加压流体将加压流体连续地供应到孔的较小直径部分。还提供了一种可选的安全机构，其具有弹簧偏压的第二活塞，用于在加压流体输送系统失效时将双作用活塞偏置到安全位置。

10. 发明授权

US06705079B1 Apparatus for controlling bounce of hydraulically powered equipment 失效
标题翻译：用于控制液压动力设备反弹的装置
公开(公告)号：US06705079B1
公开(公告)日：2004-03-16
申请号：US10255033
申请日：2002-09-25
申请人： Keith A. Tabor , Joseph L. Pfaff , Dwight B. Stephenson
发明人： Keith A. Tabor , Joseph L. Pfaff , Dwight B. Stephenson
IPC分类号： F16D3102
CPC分类号： F15B21/008 , E02F9/2207 , E02F9/2228 , F15B11/006 , F15B2211/30575 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/327 , F15B2211/50527 , F15B2211/5154 , F15B2211/528 , F15B2211/55 , F15B2211/6309 , F15B2211/6313 , F15B2211/6346 , F15B2211/7053 , F15B2211/8613
摘要： When a swinging boom driven by a hydraulic cylinder stops, inertia causes continued motion of the boom which increases pressure in a chamber of the hydraulic cylinder. Eventually that pressure reaches a level which causes the boom to reverse direction. Then pressure in an opposite cylinder chamber increases until reaching a level that causes the boom movement to reverse again. This oscillation continues until the motion is dampened by other forces acting on the boom. As a result, an operator has difficulty in properly positioning the boom. To reduce this oscillating effect, a sensor detects when the cylinder chamber pressure increases above a given magnitude and then a determination is made when the rate of change of that pressure is less than a defined threshold. Upon that occurrence, a control value is opened to relieve the pressure in that cylinder chamber.
摘要翻译：当由液压缸驱动的摆动悬臂停止时，惯性导致悬臂的持续运动，这增加了液压缸的腔室中的压力。最后，压力达到使吊杆反向的水平。然后在相对的气缸室中的压力增加，直到达到使得悬臂运动再次反向的水平。这种振荡持续到运动被作用在起重臂上的其他力阻尼。结果，操作者难以正确定位吊杆。为了减小这种振荡效应，传感器检测气缸室压力何时增加到给定量值以上，然后当该压力的变化率小于规定的阈值时进行确定。在这种情况下，打开控制值以减轻该气缸室中的压力。

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