公开(公告)号：US20120174691A1

公开(公告)日：2012-07-12

申请号：US13390727

申请日：2010-08-19

申请人： Hiroyuki Yamada ,  Isao Hayase ,  Kenji Hiraku ,  Masami Ochiai

发明人： Hiroyuki Yamada ,  Isao Hayase ,  Kenji Hiraku ,  Masami Ochiai

IPC分类号： F16H25/12

CPC分类号： B66F9/08 ,  F16H25/2261 ,  F16H25/24 ,  F16H2025/2445 ,  Y10T74/18576

摘要： [Problem]To prevent an eccentric load from occurring in a nut member of a linear actuator and ensure a longer service life of the nut member.[Solution]The nut member is coupled to a driven member by a contact force equalizing mechanism having two rotation axes which are virtually perpendicular to each other, to absorb slight inclination between the nut member and the driven member and prevent occurrence of an edge load; also the point of intersection which is obtained when the two rotation axes are projected toward a threaded shaft is set as an optimum point of application of load for the nut member to let an external force transmitted from the driven member act on the optimum point of application of load to equalize the loads applied to the contact portions between the nut member and the threaded shaft and thereby prevent an eccentric load from occurring in the nut member.

摘要翻译： [问题]为了防止在线性致动器的螺母构件中发生偏心负载，并确保螺母构件的使用寿命更长。 [解决方案]螺母构件通过具有两个彼此垂直的旋转轴的接触力平衡机构联接到从动构件，以吸收螺母构件和从动构件之间的轻微倾斜并防止边缘载荷的发生; 将两个旋转轴向螺纹轴突出时获得的交点也被设定为螺母构件的负载的最佳施加点，以使得从被驱动构件传递的外力作用在最佳施加点上 的负载以均衡施加到螺母构件和螺纹轴之间的接触部分的负载，从而防止在螺母构件中发生偏心负载。

公开(公告)号：US20120111669A1

公开(公告)日：2012-05-10

申请号：US13379689

申请日：2010-06-21

申请人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi

发明人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi

IPC分类号： B66F9/20 ,  F16H25/22

CPC分类号： B66F9/08 ,  F16H25/2261 ,  Y10T74/18576

摘要： This invention includes a screw shaft 1, a screw thread 30 formed spirally on an outer periphery of the screw shaft, main rollers 4 with rolling surfaces 4c each of which comes into contact with a flank surface 1a of the thread, the main rollers each rolling along the flank surface by rotating about a rotational axis D, roller support members 6 each supporting one main roller so as to enable the main roller to rotate about the rotational axis, and a roller cage 2 supporting the roller support member so as to enable the support member to oscillate with respect to a force transmitted from the flank surface via the rolling surface to the main roller, the roller cage being constructed to turn about the screw shaft in relative form with respect to the screw shaft when the main roller rolls. Thus, the roller and the screw shaft reliably come into linear contact with each other, even if a backlash due to dimensional errors between parts exists between the parts.

摘要翻译： 本发明包括螺杆轴1，在螺杆轴的外周螺旋地形成的螺纹30，主辊4，其滚动面4c与螺纹的侧面1a接触，主辊分别滚动 通过围绕旋转轴线D旋转的侧面表面，每个支撑一个主辊的辊支撑构件6，以使得主辊能够围绕旋转轴线旋转;以及滚子保持架2，其支撑辊支撑构件， 所述支撑构件相对于从所述侧面经由所述滚动表面传递到所述主辊的力而摆动，所述滚子保持架被构造成当所述主辊滚动时相对于所述螺纹轴以相对于所述螺纹轴转动的所述螺杆轴。 因此，即使由于部件之间存在部件之间的尺寸误差而产生的间隙，滚子和螺杆轴也可以彼此线性接触。

公开(公告)号：US20120012425A1

公开(公告)日：2012-01-19

申请号：US13145827

申请日：2009-12-25

申请人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

发明人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

IPC分类号： B66F9/20 ,  F16H25/12

CPC分类号： B66F9/08 ,  B66F9/24 ,  F16H25/2261 ,  Y10T74/18576

摘要： This invention includes a screw shaft 1, a screw thread 10 formed spirally on an outer periphery of the screw shaft, a plurality of rollers 2 arranged along the thread so as to be spaced from one another in a circumferential direction of the screw shaft to roll along a flank surface la of the screw thread via a rolling surface 2c, and a roller cage 3 accommodating the plurality of rollers so as to rotate each of the rollers on respective axes and constructed so that when the rollers are made to roll, the cage moves about the screw shaft in relative form with respect thereto; wherein the rollers each have a central axis 26 fixedly positioned with respect to the roller cage so that the roller takes a posture making a line imaginarily extended from the central axis intersect the screw shaft, and so that the central axis is inclined towards the flank surface with which the rolling surface comes into contact. Thus, a linear actuator is provided that has high motive power transmission efficiency and excellent durability since significant slipping between the rollers and the screw shaft is suppressed.

摘要翻译： 本发明包括螺杆轴1，在螺杆轴的外周螺旋地形成的螺纹10，多个辊2，沿着螺纹布置成沿着螺杆轴的圆周方向彼此间隔开以滚动 经由滚动表面2c沿着螺纹的侧面1a和滚子保持架3，容纳多个滚子以使各滚子在各轴线上旋转，并被构造成使得当滚筒滚动时，保持架 以相对于其的相对形式绕螺杆轴移动; 其特征在于，所述辊各自具有相对于所述滚子保持架固定地定位的中心轴线26，使得所述滚轮采取使从所述中心轴线观察地延伸的线与所述螺杆轴相交的姿态，并且使得所述中心轴线朝向所述侧面 滚动面与其接触。 因此，提供了一种线性致动器，其具有高的动力传递效率和优异的耐久性，因为抑制了辊和螺杆轴之间的显着滑动。

公开(公告)号：US20110259673A1

公开(公告)日：2011-10-27

申请号：US13127719

申请日：2009-10-14

申请人： Isao Hayase ,  Kenji Hiraku ,  Masaru Yamasaki ,  Masami Ochiai

发明人： Isao Hayase ,  Kenji Hiraku ,  Masaru Yamasaki ,  Masami Ochiai

IPC分类号： F16H25/20 ,  B66F9/24

CPC分类号： B66F3/08 ,  B66F9/08 ,  F16D41/066 ,  F16H25/2454 ,  Y10T74/18704

摘要： In a method for utilizing a wedge engagement mechanism as means for retaining an output shaft without requiring a large driving power, there is a need for preventing fatigue life of an actuator from being reduced as a result of stress at contacting portions of parts of wedge engagement portions of the wedge engagement mechanism becoming large.In a linear actuator that converts rotary motion of a drive unit for rotation to linear motion through a rotary motion-to-linear motion conversion mechanism, a one-way mechanism is disposed upstream of the rotary motion-to-linear motion conversion mechanism in a rotational drive path, to thereby inhibit, with a small wedge engagement force, the output shaft from being driven by an external force, achieving reduction in the stress at the contacting portions.

摘要翻译： 在利用楔形接合机构作为用于保持输出轴而不需要大的驱动力的装置的方法中，需要防止致动器的疲劳寿命由于在楔接合部分的接触部分处的应力而减小 楔接合机构的部分变大。 在将驱动单元的旋转运动通过旋转运动直线运动转换机构转换成线性运动的线性致动器中，单向机构设置在旋转运动直线运动转换机构的上游， 旋转驱动路径，从而以小的楔形接合力阻止输出轴被外力驱动，从而实现接触部分处的应力的减小。

公开(公告)号：US07588423B2

公开(公告)日：2009-09-15

申请号：US10695992

申请日：2003-10-30

申请人： Kunihiko Takao ,  Kenji Hiraku ,  Isao Hayase ,  Hironori Kaji ,  Masahito Ito

发明人： Kunihiko Takao ,  Kenji Hiraku ,  Isao Hayase ,  Hironori Kaji ,  Masahito Ito

IPC分类号： F04B3/00 ,  F04B5/00 ,  F04B25/00

CPC分类号： G01N30/32 ,  B01D15/14 ,  F04B11/0075 ,  G01N2030/326

摘要： Provided is a liquid chromatograph pump system which sucks eluent from an eluent reserving container, and which feeds pressurized high pressure eluent into a column, wherein a plunger reciprocating in a cylinder is formed on its outer peripheral surface with a stepped part along the sliding direction of the plunger in the cylinder so as to define a working chamber between the stepper part and the inner wall surface of the cylinder, the flow rate of the liquid chromatograph pump being determined by the volume of the working chamber and the traveling speed of the plunger, thereby it is possible to stably feed a liquid at an extremely low flow rate, and to satisfactorily expel air bubbles upon a start of the liquid chromatograph pump system.

摘要翻译： 提供了一种液体色谱泵系统，其从洗脱液储存容器中吸收洗脱液，并将加压的高压洗脱液进料到柱中，其中在圆筒中往复运动的柱塞沿着滑动方向的一个台阶部分形成在其外周表面上 柱塞在气缸中以便在步进部分和气缸的内壁表面之间限定工作室，液相色谱泵的流量由工作室的体积和柱塞的行进速度决定， 从而可以以极低的流量稳定地供给液体，并且在启动液相色谱泵系统时令人满意地排出气泡。

公开(公告)号：US06505608B2

公开(公告)日：2003-01-14

申请号：US09812082

申请日：2001-03-20

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D2041/3881 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/14 ,  F02D2250/31 ,  F02M55/025 ,  F02M59/367 ,  F02M63/0295 ,  F02M69/465 ,  F02M2200/04 ,  F02M2200/31 ,  F04B49/243

摘要： A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails. Offices are disposed at the upstream side inlets of both fuel rails, respectively. At the opposite sides to the inlet sides, the fuel rails are interconnected with each other by a connecting pipe. Using this fuel supply system, it is possible to increase a characterisitic frquency of the fuel columns, and to stabilize, suppress, and smooth out pressure pulsation in the fuel rails, thereby reducing uneven fuel injections into the cylinders. The system may have a cam which drives a plunger of a high pressure fuel pump to reciprocate once for every two combustions in two engine cylinders.

摘要翻译： 一种用于直喷发动机的燃料供应系统，其具有可变容量的单缸柱塞泵和两个燃料轨。 分别设置在两个燃料导轨的上游侧入口处。 在入口侧的相对侧，燃料导轨通过连接管相互连接。 利用这种燃料供给系统，能够提高燃料柱的特性，并且稳定化，抑制和平滑燃料轨中的压力脉动，从而减少对气缸的不均匀燃料喷射。 该系统可以具有驱动高压燃料泵的柱塞的凸轮，以在两个发动机气缸中的每两次燃烧中往复运动一次。

公开(公告)号：US06701898B2

公开(公告)日：2004-03-09

申请号：US09930945

申请日：2001-08-17

申请人： Kenichiro Tokuo ,  Kenji Hiraku ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenichiro Tokuo ,  Kenji Hiraku ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D41/38 ,  F02D41/3809 ,  F02D2200/0602 ,  F02M45/06 ,  F02M59/102 ,  F02M59/366 ,  F02M59/367 ,  F02M63/0031 ,  F02M63/0225 ,  F02M63/024 ,  F02M63/028 ,  F04B49/243

摘要： In a fuel supply apparatus disclosed, a variable displacement mechanism is driven once every two or more reciprocating motions of the plunger of a high-pressure fuel pump to control the delivery flow rate, so that the delivery flow rate control can be performed without having to raise the responsiveness of the variable displacement mechanism even when the reciprocating cycle of the plunger is short.

摘要翻译： 在公开的燃料供给装置中，通过高压燃料泵的柱塞的两次以上的往复运动来驱动可变排量机构一次，以控制输送流量，从而可以执行输送流量控制，而不必 即使当柱塞的往复循环短时，也提高了可变排量机构的响应性。

公开(公告)号：US06651630B2

公开(公告)日：2003-11-25

申请号：US10247302

申请日：2002-09-20

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Yuzo Kadomukai ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Yuzo Kadomukai ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M3704

CPC分类号： F02M59/468 ,  F02M59/368 ,  F02M63/0225 ,  F02M2200/21 ,  F02M2200/703 ,  F02M2200/707 ,  F04B49/243

摘要： In order to provide a method for high volume and high pressure operation of a variable delivery type single cylinder plunger pump, the displacement of the piezoelectric element 20 is magnified by a hydraulic displacement magnifying mechanism comprising a large-diameter bellows 204, a small diameter bellows 202 and working fluid 208, and an engaging member 201 is displaced to control the time interval of opening and closing the intake valve 5. The large-diameter bellows 204 is used at all times in the state compressed in the direction of displacement transfer, thereby ensuring that the pressure of the working fluid 208 is maintained at a positive value to prevent vapor from being generated. The thermal expansion of a casing 23 is selected in such a way that the total thermal expansion of the piezoelectric element 200 and hydraulic displacement magnifying mechanism in the direction of displacement transfer is approximately the same as the thermal expansion of the casing 23, whereby highly efficient driving is provided.

公开(公告)号：US06725837B2

公开(公告)日：2004-04-27

申请号：US10056081

申请日：2002-01-28

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M700

CPC分类号： F02D41/3836 ,  F02D41/3809 ,  F02D41/40 ,  F02M59/366 ,  F02M63/0225 ,  F04B49/243 ,  Y02T10/44

摘要： The unevenness of injection rates of cylinders is reduced in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by effecting a control such that the cam 100, which drives the high-pressure fuel pump 101, makes one reciprocation, while the engine makes explosions in two cylinders, and by causing the controller 55 to extend the injection time width of one of two injectors 54 which inject during one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.

摘要翻译： 在使用可变排量单柱塞泵的直喷式发动机的燃料供给系统中，气缸的喷射率的不均匀性降低。 通过进行这样的控制，可以减少气缸的喷射速度的不均匀性，使得驱动高压燃料泵101的凸轮100进行一次往复运动，同时发动机在两个气缸中发生爆炸，并且通过使控制器55 延长在高压燃料泵的一次排放期间喷射的两个喷射器54之一的喷射时间宽度，并缩短另一喷射器的喷射时间宽度。

公开(公告)号：US08573088B2

公开(公告)日：2013-11-05

申请号：US13160574

申请日：2011-06-15

申请人： Yoshio Okamoto ,  Kenji Hiraku ,  Isamu Tsubono

发明人： Yoshio Okamoto ,  Kenji Hiraku ,  Isamu Tsubono

IPC分类号： F16H1/18

CPC分类号： F16H25/2266

摘要： A rotational-to-linear conversion mechanism inhibits interference from occurring in places except for an engagement site to increase the efficiency of conversion mechanism and reliability, which has: a rack rod 1 including thread on its outer peripheral face; a holder member 3 provided on the outer periphery of the rack rod, rotating about the rack rod and moving in the axis direction; and revolving rollers 21 rotatably supported in the holder member, each having ring-shaped grooves formed in its outer peripheral face to be engaged with the thread, and placed at an axis angle with respect to a center axis of the rack rod to allow the ring-shaped grooves to be engaged with the thread on the rack rod. A contact face of the thread with each ring-shaped groove in an engagement site of the thread and the ring-shaped groove is formed as a convex face having different curvatures in a radial direction.

摘要翻译： 旋转线性转换机构抑制除了接合位置之外的位置的干扰，以提高转换机构的效率和可靠性，其具有：在其外周面上包括螺纹的齿条杆1; 保持构件3，其设置在所述齿条的外周上，围绕所述齿杆杆旋转并沿轴向移动; 以及可转动地支撑在保持器构件中的旋转辊21，每个旋转辊21具有形成在其外周面中的与所述螺纹接合的环形槽，并且相对于所述齿条的中心轴以轴向角度放置，以允许所述环 形状的槽与齿条杆上的螺纹接合。 在螺纹和环形槽的接合位置中的每个环形槽的螺纹的接触面形成为在径向上具有不同曲率的凸面。