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

US5617034A Signal improvement in the sensing of hydraulic cylinder piston position using electromagnetic waves 失效
标题翻译：使用电磁波检测液压缸活塞位置的信号改进
公开(公告)号：US5617034A
公开(公告)日：1997-04-01
申请号：US437735
申请日：1995-05-09
申请人： Wayne W. Lark , Denny Morgan , James R. Turba
发明人： Wayne W. Lark , Denny Morgan , James R. Turba
IPC分类号： G01B7/00 , F15B15/28 , G01D5/48 , G01R33/32 , G01R27/04
CPC分类号： F15B15/2869 , F15B15/28 , G01D5/48
摘要： Improvement of the ability to detect selected resonant frequencies associated with the position of the piston in a piston position sensing system using electromagnetic waves in the fluid in a hydraulic cylinder is achieved by positioning the electric signal input and output probes with 90 degree separation around the circumferential periphery of the cylinder to suppress coupling into unwanted modes that diminish detectability of particular resonant frequency signals, In a coaxial sensing system "dummy" probes at 90 degree separation to each other and 90 degree separation to the input and output probes operate to improve symmetry and resonance shape and to suppress unwanted modes.
摘要翻译：通过将电信号输入和输出探头定位在圆周周围90度分离，实现在液压缸中使用电磁波在活塞位置检测系统中检测与活塞位置相关联的选定谐振频率的能力的提高在同轴感测系统中，以相差90度的距离和与输入和输出探头的90度分离的“虚拟”探针进行操作以改善对称性，共振形状并抑制不需要的模式。

2. 发明授权

US5540137A Electrical contacting in electromagnetic wave piston position sensing in a hydraulic cylinder 失效
标题翻译：液压缸中电磁波活塞位置感应电接触
公开(公告)号：US5540137A
公开(公告)日：1996-07-30
申请号：US321294
申请日：1994-10-11
申请人： Wayne W. Lark , Denny Morgan , James R. Turba
发明人： Wayne W. Lark , Denny Morgan , James R. Turba
IPC分类号： G01B7/00 , F15B15/28 , H05K9/00 , F01B25/26 , F01B31/12
CPC分类号： F15B15/2869 , Y10S91/04
摘要： A contacting and sealing structure, for electrical continuity, noise reduction and leakage reduction between parts that move in relation to each other at the ends of the cavity within a hydraulic cylinder employing electromagnetic wave position sensing, is provided by employing two springs having garter and canted coil spring functions that are retained in side by side grooves in one of the parts so that the spring coils extend directly across the intersection of the parts.
摘要翻译：通过使用两个弹簧，其具有带有突起和倾斜的两个弹簧，提供了一种接触和密封结构，用于电气连续性，降低噪音和在使用电磁波位置检测的液压缸内腔之间相对移动的部件之间的泄漏减少螺旋弹簧功能保持在其中一个部件中的并排凹槽中，使得弹簧线圈直接跨越部件的交叉部延伸。

3. 发明授权

US4132272A Tractor hitch position control system 失效
标题翻译：牵引车牵引位置控制系统
公开(公告)号：US4132272A
公开(公告)日：1979-01-02
申请号：US811517
申请日：1977-06-30
申请人： Gale A. Holloway , Wayne W. Lark , Phillip M. McLaughlin , Robert M. Mortonson
发明人： Gale A. Holloway , Wayne W. Lark , Phillip M. McLaughlin , Robert M. Mortonson
IPC分类号： A01B63/114 , A01B63/10
CPC分类号： A01B63/114
摘要： A control system is provided for a hydraulically operated tractor hitch assembly including a rockshaft operated by a main cylinder which is controlled through a spool valve operated by a pilot cylinder which is controlled, in turn, through a solenoid operated pilot valve. The pilot valve is selectively controlled from first and second detector circuits through a gating circuit which is controlled by a third detector circuit which responds to a first error signal developed by comparing a command signal which corresponds to a rockshaft target position and a first feedback signal which corresponds to the actual rockshaft position and which is generated by a potentiometer connected to the rockshaft. The first detector circuit is operative when the first error signal is of relatively high magnitude and responds to a second error signal developed by comparing the first error signal with a feedback signal derived through a signal modifying circuit from the potentiometer connected to the spool valve, with the signal modifying circuit being operative to compensate for a dead zone of the spool valve and with the operation being such that the rockshaft is rotated to a position within a zero target range without under-shoot, over-shoot or oscillation. The second detector circuit is operative when the first error signal is of low magnitude and responds directly to the second feedback signal to center the spool valve.
摘要翻译：提供了一种用于液压操作的拖拉机牵引组件的控制系统，其包括由主缸操作的岩心，该主轴通过由先导缸操作的滑阀控制，所述滑阀通过电磁操作的先导阀来控制。先导阀由第一和第二检测器电路选择性地控制，门控电路由第三检测器电路控制，第三检测器电路响应于通过比较对应于岩轴目标位置的命令信号和第一反馈信号而产生的第一误差信号，对应于实际的岩石轴位置，由连接到岩心的电位器产生。当第一误差信号具有相对高的幅度时，第一检测器电路是可操作的，并且响应于通过将第一误差信号与通过信号修改电路从连接到滑阀的电位计导出的反馈信号进行比较而产生的第二误差信号，所述信号修改电路可操作以补偿滑阀的死区，并且所述操作使得所述岩轴在没有欠拍，过射或振荡的情况下旋转到零目标范围内的位置。第二检测器电路在第一误差信号为低幅值时可操作，并直接响应于第二反馈信号以使滑阀居中。

4. 发明授权

US4343414A Seed planter drum drive system 失效
标题翻译：种子播种机驱动系统
公开(公告)号：US4343414A
公开(公告)日：1982-08-10
申请号：US187373
申请日：1980-09-15
申请人： Wayne W. Lark , Marvin D. Jennings , Marvyn J. Madeksho
发明人： Wayne W. Lark , Marvin D. Jennings , Marvyn J. Madeksho
IPC分类号： A01C7/04 , A01C7/10 , A01C7/18
CPC分类号： A01C7/044 , A01C7/102 , Y10S111/904
摘要： A drive system is provided for driving a rotatable seed drum of a seed planter which includes a fan for supplying air under pressure to the drum. The drum drive system includes an alternator which is mechanically driven, preferably from a drive for the planter fan, and which has output terminals connected to a motor mechanically connected to the seed drum. A ground speed signal generator is mechanically connected to a ground-engaging wheel to develop a signal which has an amplitude proportional to ground speed and which is applied through an adjustable resistance to a field winding of the alternator after passing through a control box. A drum speed signal generator arrangement is provided for developing a drum speed signal having an amplitude inversely proportional to the speed of rotation of the seed drum. This signal is also directed to the control box. Preferably, the signal generators include reluctance generator devices. An adjustable resistor between the control box and the field terminal of the alternator may be utilized to further adjust the control box output.
摘要翻译：驱动系统用于驱动种子播种机的可旋转播种筒，该种子播种机包括用于将压力下的空气供应到滚筒的风扇。滚筒驱动系统包括机械驱动的交流发电机，优选地由用于花盘风扇的驱动器，并且具有连接到机械地连接到种子滚筒的马达的输出端子。地面速度信号发生器机械地连接到接地轮，以形成具有与地面速度成比例的振幅的信号，并且在通过控制箱之后通过可调电阻施加到交流发电机的励磁绕组。提供鼓速度信号发生器装置，用于显影具有与种子滚筒的旋转速度成反比的振幅的鼓速度信号。该信号也指向控制箱。优选地，信号发生器包括磁阻发生器装置。控制箱和交流发电机的现场端子之间的可调电阻可用于进一步调节控制箱的输出。

5. 发明授权

US07258058B2 Metering valve with integral relief and makeup function 失效
标题翻译：计量阀具有一体化的浮雕和化妆功能
公开(公告)号：US07258058B2
公开(公告)日：2007-08-21
申请号：US11214957
申请日：2005-08-31
申请人： David P. Smith , Daniel T. Mather , Wayne W. Lark
发明人： David P. Smith , Daniel T. Mather , Wayne W. Lark
IPC分类号： F15B13/04
CPC分类号： F15B13/024 , F15B13/0433 , F15B2211/30505 , F15B2211/30575 , F15B2211/329 , F15B2211/353 , F15B2211/355 , F15B2211/365 , F15B2211/55 , F15B2211/555 , F15B2211/8609 , G05D16/2093
摘要： A metering valve for a work machine hydraulic system is disclosed. The metering valve has an inlet and an outlet, a main poppet, and a solenoid-operated pilot element. The main poppet is movable to pass fluid from the inlet to the outlet, and to block fluid from the inlet to the outlet. The solenoid-operated pilot element is movable between a first position at which pressurized fluid from the inlet pressurizes a control chamber in communication with a control end of the main poppet to urge the main poppet toward the flow-blocking position, and a second position at which the control chamber is communicated with a drain to move the main poppet toward the flow-passing position. The metering valve also has a relief valve element configured to drain pressurized fluid from the control chamber to move the main poppet toward the flow-passing position in response to a pressure at the inlet exceeding a predetermined pressure.
摘要翻译：公开了一种用于作业机液压系统的计量阀。计量阀具有入口和出口，主提升阀和电磁操作的引导元件。主提升阀可移动以将流体从入口传送到出口，并阻止流体从入口到出口。电磁操作的先导元件可以在第一位置和第二位置之间移动，在第一位置处，来自入口的加压流体对与主提升阀的控制端连通的控制室进行加压，以将主提升阀推向阻流位置，所述控制室与排水管连通以将所述主提升阀朝向流动位置移动。计量阀还具有安全阀元件，该安全阀元件被构造成响应于入口处的压力超过预定压力而从加压流体排出控制室以将主提升阀移向流通位置。

6. 发明授权

US06509733B2 Fluid cylinder with embedded positioning sensor 失效
公开(公告)号：US06509733B2
公开(公告)日：2003-01-21
申请号：US09741989
申请日：2000-12-20
申请人： James F. Blubaugh , Hans P. Dietz , Wayne W. Lark , David J. McIntyre , Thomas G. Skinner , Sean P. Wiltz
发明人： James F. Blubaugh , Hans P. Dietz , Wayne W. Lark , David J. McIntyre , Thomas G. Skinner , Sean P. Wiltz
IPC分类号： G01B714
CPC分类号： G01D5/485 , F15B15/2861 , F15B15/2892
摘要： The present fluid cylinder includes a cylinder body having a cylindrical internal cavity therein with a longitudinal axis therethrough, the internal cavity being adapted for disposition of a piston and rod assembly for axial movement therein. The cylinder includes a member such as an end cap enclosing an axial end of the internal cavity, the member having a sensor port or passage therethrough extending between an internal opening communicating with the internal cavity and an external opening. A sensor is disposed in the internal opening of the sensor port or passage, and a sensor electronics module is disposed therein between the sensor and the external opening. The sensor is operable for sensing an axial distance of the piston or the rod from a predetermined location when disposed in the internal cavity and outputting signals representative of the distance to the sensor electronics module which includes circuitry for retrieving the signals.

7. 发明授权

US5560278A Hydraulic cylinder with an electrical contacting and sealing ring 失效
标题翻译：液压缸带电接触和密封环
公开(公告)号：US5560278A
公开(公告)日：1996-10-01
申请号：US321293
申请日：1994-10-11
申请人： Wayne W. Lark
发明人： Wayne W. Lark
IPC分类号： G01B15/00 , F02B77/08 , F15B15/28 , F16J10/00 , F16J15/06 , F16J15/16 , F01B25/26 , F02F5/00 , F16J9/06
CPC分类号： F15B15/2869 , F16J15/064 , Y10S277/94 , Y10S277/941
摘要： A coaxial capacitor contacting and sealing structure, for electrical continuity between parts that move in relation to each other at the ends of a cavity within a hydraulic cylinder employing electromagnetic wave position sensing. The structure employs a contacting and sealing member having a high surface conductivity that is mounted in one of the parts. The mounting of the contacting and sealing member provides force for pressure contact in oil between the parts and to enhance electrical continuity with the part in which the contacting and sealing member is located.
摘要翻译：一种同轴电容器接触和密封结构，用于在使用电磁波位置感测的液压缸内的空腔的端部处彼此相对移动的部件之间的电连续性。该结构采用安装在其中一个部件中的具有高表面电导率的接触和密封构件。接触和密封构件的安装提供用于部件之间的油中的压力接触的力并且增强与接触和密封构件所处的部件的电连续性。

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