公开(公告)号：US06176343B1

公开(公告)日：2001-01-23

申请号：US08990339

申请日：1997-12-15

申请人： Richard A. Vincent ,  Bobby Joe Adams, Jr. ,  Mark A. Skelton ,  Michael Lewis Nicholson

发明人： Richard A. Vincent ,  Bobby Joe Adams, Jr. ,  Mark A. Skelton ,  Michael Lewis Nicholson

IPC分类号： B62D506

CPC分类号： B62D5/22

摘要： A steering gear housing part (112) has a tubular portion (184) with an annular inner end surface (188). The housing part (112) is constructed with reference to a corresponding hydraulic fluid power cylinder (114) so as to be receivable in an installed position in which the tubular portion (184) extends inward through an open end (182) of the power cylinder (114) in an interference fit with the power cylinder (114). When the housing part (112) is in its installed position, the inner end surface (188) of the tubular portion (184) abuts an annular hydraulic fluid seal (162) in the power cylinder (114).

摘要翻译： 舵机壳体部分（112）具有带有环形内端表面（188）的管状部分（184）。 壳体部分（112）相对于相应的液压流体动力缸（114）构造成能够接收在安装位置，其中管状部分（184）向内延伸通过动力缸的开口端（182） （114）与动力缸（114）的过盈配合。 当壳体部分112处于其安装位置时，管状部分184的内端表面188邻接动力缸114中的环形液压密封件162。

公开(公告)号：US06675928B2

公开(公告)日：2004-01-13

申请号：US10264446

申请日：2002-10-04

申请人： Masashi Takai ,  Naoto Shima ,  Fumihide Kozuma ,  Norimasa Amano ,  Noboru Shimizu

发明人： Masashi Takai ,  Naoto Shima ,  Fumihide Kozuma ,  Norimasa Amano ,  Noboru Shimizu

IPC分类号： B62D506

CPC分类号： B62D5/065

摘要： For an energy-saving type control, a value of a control low rate QP controlled by a flow control valve V is closer to a value of a flow rate required by an output side such as a power cylinder 8, a steering valve 9 or the like, to suppress a driving torque of a pump P. An excitation current I of a solenoid SOL is specified on the basis of a solenoid current instruction value IT based on a steering torque and a solenoid current instruction value IS defining a standby flow rate.

摘要翻译： 对于节能型控制，由流量控制阀V控制的控制低速率QP的值更接近诸如动力缸8，转向阀9或输出侧的输出侧所需的流量的值 以抑制泵P的驱动转矩。螺线管SOL的励磁电流I基于基于转向转矩和确定备用流量的螺线管电流指令值IS的电磁线圈电流指令值IT来指定。

公开(公告)号：US06668968B2

公开(公告)日：2003-12-30

申请号：US09963370

申请日：2001-09-27

申请人： Yosuke Hasegawa ,  Bunzo Seki

发明人： Yosuke Hasegawa ,  Bunzo Seki

IPC分类号： B62D506

CPC分类号： B62D5/087 ,  B62D5/12

摘要： A power steering system is provided which makes it possible to simplify assembly onto a vehicle body and to enhance assembly accuracy. A steering shaft is divided into two portions in the axial direction. The lower of the two portions is an input shaft. A connecting cylinder to which the input shaft is serration-fitted is integrally provided at a lower portion of the steering shaft. A side wall of the connecting cylinder is provided with a groove in the axial direction. A fastening device is provided for reducing the diameter of the connecting cylinder so as to reduce the width of the groove. A spool lever is integrally fitted to the input shaft.

公开(公告)号：US06668966B2

公开(公告)日：2003-12-30

申请号：US09955439

申请日：2001-09-19

申请人： Yosuke Hasegawa ,  Bunzo Seki

发明人： Yosuke Hasegawa ,  Bunzo Seki

IPC分类号： B62D506

CPC分类号： B62D5/062 ,  Y10S180/908 ,  Y10T137/85954

摘要： To provide a power steering device capable of increasing the degree of freedom in the layout of the various elements, stabilizing the surface of the oil and preventing air from being included or mixing foreign materials with the oil in the oil tank. The power steering device includes a power assist cylinder arranged between a steering shaft and a chassis frame. A control valve is operated by the steering shaft to control the power assist cylinder. An oil pump pressurizes operating oil supplied to the power assist cylinder. Furthermore, an oil tank stores the operating oil, wherein the oil tank is of a closed type and integrally arranged in the oil pump.

公开(公告)号：US06634454B2

公开(公告)日：2003-10-21

申请号：US09995509

申请日：2001-11-27

申请人： Nobuo Sugitani ,  Osamu Tsurumiya ,  Makoto Murata ,  Masaaki Kawano

发明人： Nobuo Sugitani ,  Osamu Tsurumiya ,  Makoto Murata ,  Masaaki Kawano

IPC分类号： B62D506

CPC分类号： B62D5/001 ,  B62D1/12 ,  B62D6/001 ,  G05G9/047 ,  G05G2009/0474

摘要： The object of the present invention is to provide a driving apparatus for a vehicle, which is capable of improving the operability and safety of a vehicle driving by enabling a fine correction to the steering amount with a simple apparatus. The apparatus employs the first and second operation devices, for which the steering gains are differentiated for the improvement.

公开(公告)号：US06598696B2

公开(公告)日：2003-07-29

申请号：US10032179

申请日：2001-12-21

申请人： Donald Emmett Lucking ,  James Richard Robertson

发明人： Donald Emmett Lucking ,  James Richard Robertson

IPC分类号： B62D506

CPC分类号： F15B21/044

摘要： The present invention involves a purge device for a steering gear assembly of a vehicle. The steering gear assembly includes a steering piston chamber having a piston moveably housed therein and having a hydraulic assist port formed on the steering piston chamber. The device comprises a purge channel in fluid communication with the hydraulic assist port and housed in the steering piston chamber. The purge channel extends to a channel opening positioned at a first portion in the chamber to purge trapped air from the chamber during operation of the steering gear assembly.

公开(公告)号：US06520278B2

公开(公告)日：2003-02-18

申请号：US09508554

申请日：2000-03-10

申请人： Chaojiu Wang

发明人： Chaojiu Wang

IPC分类号： B62D506

CPC分类号： B62D6/02 ,  B62D5/06 ,  B62D5/062

摘要： A hydraulic power steering apparatus 1 which is arranged so that a damper valve 10 is disposed in hydraulic oil circuits 8 and 9 for connecting an oil passage selector valve 11 in a gear box with right and left oil chambers of a power cylinder 6. The damper valve 10 comprises a spool valve. And a control oil chamber 21 of the spool valve 10 is connected with a hydraulic oil feed passage 18 for connecting a hydraulic pump 13 which is driven by an internal combustion engine so as to discharge hydraulic oil, with the oil passage selector valve 11. Its back pressure chamber 17 is connected with a hydraulic oil circulating passage 19 for connecting the oil passage selector valve 11 with a reservoir tank 12. Orifices 27 and 28 are provided in connecting oil passages 22 and 20, such that when discharge oil pressure of the hydraulic pump 13 rises, opening of the spool valve 10 increase.

摘要翻译： 一种液压动力转向装置1，其设置成使阻尼阀10设置在用于将齿轮箱中的油路切换阀11与动力缸6的左右油室连接的液压油回路8和9中。阻尼器 阀10包括滑阀。 滑阀10的控制油室21与用于连接由内燃机驱动的液压泵13排出液压油的液压油供给通路18与油路切换阀11连接。它 背压室17与用于将油路切换阀11与油箱12连接的液压油循环通路19连接。在连接油路22,20中设置有孔27,28，使得当油压 泵13上升，滑阀10的开度增加。

公开(公告)号：US06502661B1

公开(公告)日：2003-01-07

申请号：US09648356

申请日：2000-08-25

申请人： Heinz-Dieter Heitzer

发明人： Heinz-Dieter Heitzer

IPC分类号： B62D506

CPC分类号： B62D5/30 ,  B62D3/14 ,  B62D5/06

摘要： The invention relates to a vehicle steering system comprising a steering linkage, a control hydraulic motor and a control hydraulic circuit, a steering wheel connected to the control hydraulic motor, and a control hydraulic cylinder connected to the control hydraulic motor by the control hydraulic circuit. The vehicle steering system further comprises a servohydraulic cylinder, a servopump, a servohydraulic circuit connecting the servopump to the servohydraulic cylinder, and an electronic control circuit which controls the servohydraulic circuit.

摘要翻译： 本发明涉及一种车辆转向系统，包括转向联动装置，控制液压马达和控制液压回路，连接到控制液压马达的方向盘以及通过控制液压回路连接到控制液压马达的控制液压缸。 车辆转向系统还包括伺服液压缸，伺服泵，将伺服泵连接到伺服液压缸的伺服液压回路，以及控制伺服液压回路的电子控制回路。

公开(公告)号：US06435289B1

公开(公告)日：2002-08-20

申请号：US09666451

申请日：2000-09-21

申请人： Shuuji Hori ,  Naoki Ishizaki ,  Yasuhiro Sato ,  Masayoshi Mototani

发明人： Shuuji Hori ,  Naoki Ishizaki ,  Yasuhiro Sato ,  Masayoshi Mototani

IPC分类号： B62D506

CPC分类号： E02F9/2292 ,  B62D11/183 ,  E02F9/2004 ,  E02F9/2012 ,  E02F9/2296

摘要： The aim is to improve operability in vehicles such as skid steer loaders and to reduce the burden on the operator. It is made easy to switch between a first operation pattern wherewith only one operation apparatus of two operation apparatuses is used in driving two actuators, and a second operation pattern wherewith the two actuators are driven using both of the two operation apparatuses. It is made possible to hold operation positions, and to release held positions, whether with an operation lever apparatus that is capable of operation in only one directional component or with an operation lever apparatus that is capable of operation in two directional components in the forward and backward direction and in the left and right direction. When a change to a first combination is designated by a pattern switching lever, the first combination (first operation pattern) is switched to by switching means. This effects correspondences between operation direction signals output from one operation apparatus of two (left and right) operation apparatuses and the drive directions of left and right running actuators. It is thereby made possible to drive left and right running bodies by operating one of the operation levers (the left operation lever). When a change to a second combination is designated by the pattern switching lever, the second pattern (second operation pattern) is switched to by the switching means. Thereby correspondences are effected between the operation direction signals output from the left operation apparatus and the drive directions of the left running actuator, and correspondences are effected between the operation direction signals output from the right operation apparatus and the drive directions of the right running actuator. It is thereby made possible to drive the left and right running bodies by operating both the left and the right operation lever. When a switching valve is switched to a valve position, and the operation lever has been operated so as to tilt, the operation lever is held in that tilted position. And when the switching valve is switched to another valve position, the operation lever holding condition is released.

公开(公告)号：US06419042B1

公开(公告)日：2002-07-16

申请号：US09677964

申请日：2000-10-03

申请人： Craig A. Stenstrom

发明人： Craig A. Stenstrom

IPC分类号： B62D506

CPC分类号： F15B15/202 ,  B62D5/062 ,  B62D5/22 ,  F15B15/18

摘要： An electric powered hydraulic steering system (10) for a vehicle comprises a power steering motor (12) having a housing (18) with an exterior surface (16) and an interior chamber (24). The power steering motor (12) further includes a rack bar (26) for turning the steerable wheels of the vehicle. The rack bar (26) extends through the interior chamber (24) of the housing (18). A piston (34) is attached to the rack bar (26) and divides the interior chamber (24) into two chamber portions (38 and 40) for receiving a fluid. The piston (34) moves the rack bar (26) linearly within the interior chamber (24) depending upon a pressure differential between the two chamber portions (38 and 40). The system (10) further includes a control valve (54) for directing the fluid into the chamber portions (38 and 40) in the housing (18) of the power steering motor (12), a pump (56) for supplying the fluid to the control valve (54), a reservoir (58) for providing the fluid to the pump (56), and an electric motor (60) for driving the pump (56). The power steering motor, control valve, pump, reservoir, and electric motor form an integrated unit.

摘要翻译： 一种用于车辆的电动液压转向系统（10）包括具有外壳（16）和内室（24）的壳体（18）的动力转向电动机（12）。 动力转向电动机（12）还包括用于转动车辆的可转向车轮的齿条（26）。 齿条（26）延伸穿过壳体（18）的内部腔室（24）。 活塞（34）附接到齿条（26）并且将内部腔室（24）分成用于接收流体的两个腔室部分（38和40）。 活塞34根据两个室部分（38和40）之间的压力差，在内部腔室（24）内线性移动齿条（26）。 系统（10）还包括用于将流体引导到动力转向电动机（12）的壳体（18）中的室部分（38和40）中的控制阀（54），用于供应流体 到所述控制阀（54），用于将流体提供给所述泵（56）的储存器（58）和用于驱动所述泵（56）的电动机（60）。 动力转向电动机，控制阀，泵，蓄电池和电动机组成一体。