公开(公告)号：US20140049045A1

公开(公告)日：2014-02-20

申请号：US14006245

申请日：2012-02-24

申请人： Masaki Yoshikawa ,  Takuya Nagahama ,  Hiroshi Chikatsune ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi ,  Masateru Ueta ,  Osamu Sonobe

发明人： Masaki Yoshikawa ,  Takuya Nagahama ,  Hiroshi Chikatsune ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi ,  Masateru Ueta ,  Osamu Sonobe

IPC分类号： F16L15/00

CPC分类号： F16L15/001 ,  E21B17/042 ,  F16L15/004 ,  F16L15/06

摘要： Provided is a threaded joint for steel pipes having high sealability even under a bending load. In the threaded joint, when a pin 3 and a box 1 are threadedly connected with each other, the outer peripheral face of a nose 8 of the pin and the inner peripheral face of a nose of the box are in metal-to-metal contact with each other at a contact portion and the contact portion serves as a seal portion 20. A threaded portion, at which the externally threaded portion 7 and the internally threaded portion 5 are threadedly connected with each other, has a negative load flank angle α, shoulder portions 12 and 14 have a negative torque shoulder angle β, and the ratio L/d0 of a length L of the nose and a pipe outside diameter d0 is equal to or higher than 0.08.

摘要翻译： 即使在弯曲载荷下也具有高密封性的钢管用螺纹接头。 在螺纹接头中，当销3和盒1彼此螺纹连接时，销的鼻部8的外周面和箱的鼻部的内周面与金属对金属接触 彼此在接触部分处，并且接触部分用作密封部分20.外螺纹部分7和内螺纹部分5彼此螺纹连接的螺纹部分具有负的负载侧角α， 肩部12和14具有负扭矩肩角β，并且鼻部长度L和管外径d0的比L / d0等于或高于0.08。

公开(公告)号：US09657873B2

公开(公告)日：2017-05-23

申请号：US14001944

申请日：2012-02-24

申请人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Osamu Sonobe

发明人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Osamu Sonobe

IPC分类号： F16L15/00 ,  F16L15/06 ,  E21B17/042

CPC分类号： F16L15/00 ,  E21B17/042 ,  F16L15/001 ,  F16L15/06

摘要： A threaded joint for steel pipes that includes a pin and a box. The pin has an externally threaded portion, a nose, and a shoulder portion. The box has an internally threaded portion, a sealing surface, and a shoulder portion. The outer circumferential surface of the nose of the pin has an outward convex curved shape, and the sealing surface of the box has a tapered shape. Additionally, the cross-sectional area of the pin at a seal point is 35% or more of the cross-sectional area of an original pipe portion corresponding to an unprocessed portion of the pin, the seal point being a portion on the pin that first comes into contact with the sealing surface of the box when the pin and the box are joined.

公开(公告)号：US08991875B2

公开(公告)日：2015-03-31

申请号：US14006245

申请日：2012-02-24

申请人： Masaki Yoshikawa ,  Takuya Nagahama ,  Hiroshi Chikatsune ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi ,  Masateru Ueta ,  Osamu Sonobe

发明人： Masaki Yoshikawa ,  Takuya Nagahama ,  Hiroshi Chikatsune ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi ,  Masateru Ueta ,  Osamu Sonobe

IPC分类号： F16L25/00 ,  F16L15/00 ,  F16L15/06

CPC分类号： F16L15/001 ,  E21B17/042 ,  F16L15/004 ,  F16L15/06

摘要： Provided is a threaded joint for steel pipes having high sealability even under a bending load. In the threaded joint, when a pin 3 and a box 1 are threadedly connected with each other, the outer peripheral face of a nose 8 of the pin and the inner peripheral face of a nose of the box are in metal-to-metal contact with each other at a contact portion and the contact portion serves as a seal portion 20. A threaded portion, at which the externally threaded portion 7 and the internally threaded portion 5 are threadedly connected with each other, has a negative load flank angle α, shoulder portions 12 and 14 have a negative torque shoulder angle β, and the ratio L/d0 of a length L of the nose and a pipe outside diameter d0 is equal to or higher than 0.08.

摘要翻译： 即使在弯曲载荷下也具有高密封性的钢管用螺纹接头。 在螺纹接头中，当销3和盒1彼此螺纹连接时，销的鼻部8的外周面和箱的鼻部的内周面与金属对金属接触 在接触部分彼此接触并且接触部分用作密封部分20.外螺纹部分7和内螺纹部分5彼此螺纹连接的螺纹部分具有负的负载侧面角α， 肩部12和14具有负扭矩肩角＆bgr;并且鼻部长度L和管外径d0的比L / d0等于或大于0.08。

公开(公告)号：US20140116560A1

公开(公告)日：2014-05-01

申请号：US14001944

申请日：2012-02-24

申请人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Osamu Sonobe

发明人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Osamu Sonobe

IPC分类号： F16L15/00

CPC分类号： F16L15/00 ,  E21B17/042 ,  F16L15/001 ,  F16L15/06

摘要： Radial seal type threaded joints for steel pipes have still room for improvement in ensuring sealability in terms of the rigidity of the pin nose. Specifically, the outer circumferential surface of the nose of the pin has an outward convex curved shape, and the sealing surface of the box has a tapered shape; and the cross-sectional area of the pin at a seal point that is a portion on the outer circumferential surface of the nose of the pin, the portion first coming into contact with the sealing surface of the box when threaded-joined, is 35% or more of the cross-sectional area of an original pipe portion corresponding to an unprocessed portion.

摘要翻译： 用于钢管的径向密封型螺纹接头在确保针销的刚性方面的密封性方面仍有改进的余地。 具体地说，销的鼻部的外周面呈向外凸的弯曲形状，盒的密封面呈锥形， 并且在作为销的鼻部的外周面上的部分的密封点处的销的横截面积，当螺纹接合时，首先与盒的密封表面接触的部分为35％ 或更多的对应于未处理部分的原始管部分的横截面积。

公开(公告)号：US09194190B2

公开(公告)日：2015-11-24

申请号：US13807883

申请日：2011-06-22

申请人： Osamu Sonobe ,  Takuya Nagahama ,  Masaki Yoshikawa ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi

发明人： Osamu Sonobe ,  Takuya Nagahama ,  Masaki Yoshikawa ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi

IPC分类号： F16L15/00 ,  E21B17/042 ,  F16L15/06

CPC分类号： E21B17/042 ,  F16L15/00 ,  F16L15/004 ,  F16L15/06

摘要： A threaded joint for a pipe is disclosed in which scalability, compression resistance, and galling resistance are enhanced. The threaded joint includes a pin nose outer peripheral surface that forms an outward convex curve in an axial cross-sectional view; the convex curve is such that a composite R curve, in which a plurality of outward convex arcs having different radiuses of curvature are connected in sequence to a generating line of a cylindrical portion next to a male member, is curved such that the radiuses of curvature increase with distance from the male member and tangents on connection points of the arcs are aligned with those of corresponding arcs connected thereto; and the inner peripheral surface of a box component facing the pin nose is a tapered surface that interferes with the pin nose outer peripheral surface when connected to a pin component.

摘要翻译： 公开了一种用于管道的螺纹接头，其中增强了可伸缩性，抗压缩性和耐磨损性。 螺纹接头包括在轴向横截面视图中形成向外凸曲线的销头外周表面; 凸曲线使得其中具有不同的曲率半径的多个向外凸起的弧线与邻近阳构件的圆柱形部分的生成线连续地连接的复合R曲线弯曲成使得曲率半径 随着与阳构件的距离增加并且在圆弧的连接点上的切线与与其连接的相应弧的弧线对准; 并且面向销头的箱体部件的内周面是与销部件连接时与销头外周面相干涉的锥形面。

公开(公告)号：US20130181442A1

公开(公告)日：2013-07-18

申请号：US13807883

申请日：2011-06-22

申请人： Osamu Sonobe ,  Takuya Nagahama ,  Masaki Yoshikawa ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi

发明人： Osamu Sonobe ,  Takuya Nagahama ,  Masaki Yoshikawa ,  Jun Takano ,  Takamasa Kawai ,  Kazunari Takahashi

IPC分类号： E21B17/042 ,  F16L15/00

CPC分类号： E21B17/042 ,  F16L15/00 ,  F16L15/004 ,  F16L15/06

摘要： Provided is a threaded joint for a pipe in which scalability, compression resistance, and galling resistance are enhanced. Specifically, a pin nose outer peripheral surface forms an outward convex curve in an axial cross-sectional view; the convex curve is such that a composite R curve, in which a plurality of outward convex arcs having different radiuses of curvature are connected in sequence to a generating line of a cylindrical portion next to a male member, is curved such that the radiuses of curvature increase with distance from the male member and tangents on connection points of the arcs are aligned with those of corresponding arcs connected thereto; and the inner peripheral surface of a box component facing the pin nose is a tapered surface that interferes with the pin nose outer peripheral surface when connected to a pin component.

摘要翻译： 提供了一种用于管道的螺纹接头，其中可扩展性，抗压缩性和耐磨损性提高。 具体地，针鼻外周面在轴向剖视图中形成向外的凸曲线; 凸曲线使得其中具有不同的曲率半径的多个向外凸起的弧线与邻近阳构件的圆柱形部分的生成线连续地连接的复合R曲线弯曲成使得曲率半径 随着与阳构件的距离增加并且在圆弧的连接点上的切线与与其连接的相应弧的弧线对准; 并且面向销头的箱体部件的内周面是与销部件连接时与销头外周面相干涉的锥形面。

公开(公告)号：US08668624B2

公开(公告)日：2014-03-11

申请号：US13378445

申请日：2010-06-21

申请人： Koji Hyodo ,  Masaki Yoshikawa ,  Kazuo Chounan

发明人： Koji Hyodo ,  Masaki Yoshikawa ,  Kazuo Chounan

IPC分类号： B60W10/04

CPC分类号： F02D41/0205 ,  E02F9/2246 ,  E02F9/2296 ,  F02D29/00 ,  F02D41/1497 ,  F02D2200/604 ,  F02D2250/26 ,  F16H2059/084 ,  F16H2059/085 ,  F16H2059/467

摘要： A motor control device for a working vehicle includes: a travel drive device that transmits rotation of a motor to wheels through a torque converter; a first selection device to be operated so as to select one of a power mode and an economy mode; a second selection device that is different from the first selection device; a mode switching device that switches from the economy mode to the power mode if the second selection device is operated in a state where the economy mode has been selected by the first selection device; and a speed restriction device that, when the economy mode is set, restricts a maximum rotational speed of the motor to a lower speed side than that when the power mode is set.

摘要翻译： 一种用于工作车辆的电动机控制装置，包括：行驶驱动装置，其通过变矩器将电动机的旋转传递到车轮; 操作以选择功率模式和经济模式之一的第一选择装置; 与第一选择装置不同的第二选择装置; 模式切换装置，如果在经由第一选择装置选择经济模式的状态下操作第二选择装置，则从经济模式切换到电力模式; 以及速度限制装置，当经济模式被设定时，将电动机的最大转速限制为比设定动力模式时的最低转速。

公开(公告)号：US08744702B2

公开(公告)日：2014-06-03

申请号：US13378967

申请日：2010-06-18

申请人： Koji Hyodo ,  Masaki Yoshikawa ,  Ei Takahashi ,  Katsutaka Hara

发明人： Koji Hyodo ,  Masaki Yoshikawa ,  Ei Takahashi ,  Katsutaka Hara

IPC分类号： G06F7/02

CPC分类号： B60W30/1882 ,  B60K2350/1092 ,  B60W2300/17 ,  B60W2510/0241 ,  B60W2510/0638 ,  B60W2540/10 ,  B60Y2200/415 ,  Y02T10/84

摘要： A work vehicle control device includes: a rotation speed control unit that controls an engine rotation speed in correspondence to an accelerator pedal operation quantity indicating an operating extent of an accelerator pedal; a speed ratio detection unit that detects a ratio of speed at an input shaft and at an output shaft of a torque converter, which is disposed between the engine and wheels; a decision-making unit that makes a decision that a fuel efficiency deteriorating condition exists if the torque converter speed ratio is less than a predetermined value or if the torque converter speed ratio is equal to or greater than the predetermined value and a target engine rotation speed corresponding to an operation of the accelerator pedal is greater than a preset value; and an informing unit that informs results of the decision made by the decision-making unit.

摘要翻译： 作业车辆控制装置包括：转速控制单元，其对应于表示加速器踏板的操作范围的加速器踏板操作量来控制发动机转速; 速度检测单元，其检测设置在发动机和车轮之间的变矩器的输入轴和输出轴的速度比; 如果变矩器速度比小于预定值，或者如果变矩器速度比等于或大于预定值和目标发动机转速，则作出决定燃料效率恶化条件的决定单元 对应于加速器踏板的操作大于预设值; 以及通知单位，通知决策单位作出的决定。

公开(公告)号：US08312793B2

公开(公告)日：2012-11-20

申请号：US12679820

申请日：2008-09-25

申请人： Hiroyuki Azuma ,  Atsushi Shimazu ,  Masaki Yoshikawa ,  Kosei Suzuki

发明人： Hiroyuki Azuma ,  Atsushi Shimazu ,  Masaki Yoshikawa ,  Kosei Suzuki

IPC分类号： F16H47/00

CPC分类号： F16H61/0031 ,  F16H41/30 ,  Y10T74/19149 ,  Y10T74/19153 ,  Y10T477/688

摘要： A first hydraulic circuit leads, as clutch control pressure, pressurized oil supplied from a first hydraulic pump, to a transmission control device after regulating the pressurized oil, and leads, as torque converter operation oil, pressured oil to a torque converter, and leads pressurized oil to an oil cooler. Through a second hydraulic circuit, pressurized oil from a second hydraulic pump is distributed to a circuit portion downstream of the pressure regulation valve and upstream of a safety valve and to a circuit portion downstream of the torque converter and upstream of the oil cooler. A flow control device changes a proportion of a rate of flow in the second hydraulic circuit so that a proportion of the rate of flow to the circuit portion downstream of the torque converter and upstream of the oil cooler increases as pressure at an entrance of the torque converter increases.

摘要翻译： 作为离合器控制压力的第一液压回路，在调节加压油之后，将从第一液压泵供给的加压油引导到变速器控制装置，并将作为变矩器操作油的加压油引导到变矩器，并将加压油 油到油冷却器。 通过第二液压回路，来自第二液压泵的加压油被分配到压力调节阀下游的电路部分和安全阀的上游以及转矩转换器下游的电路部分和油冷却器的上游。 流量控制装置改变第二液压回路中的流量比例，使得在扭矩转换器下游的电路部分和油冷却器上游的流量的比例随转矩入口处的压力而增加 转换器增加。

公开(公告)号：US20120095655A1

公开(公告)日：2012-04-19

申请号：US13378972

申请日：2010-06-17

申请人： Koji Hyodo ,  Hiroki Nakazono ,  Masaki Yoshikawa ,  Tadayoshi Aoki ,  Isamu Aoki

发明人： Koji Hyodo ,  Hiroki Nakazono ,  Masaki Yoshikawa ,  Tadayoshi Aoki ,  Isamu Aoki

IPC分类号： G06F19/00 ,  G05D13/00

CPC分类号： F02D41/0205 ,  B60W10/06 ,  B60W30/184 ,  B60W2510/1005 ,  B60W2520/10 ,  B60W2710/0644 ,  E02F9/2246 ,  F02D29/00 ,  F02D31/001 ,  F02D31/009 ,  F02D41/0215 ,  F02D41/0225 ,  F02D41/222 ,  F02D2200/101 ,  F02D2200/501 ,  F02D2200/602 ,  F02D2200/604 ,  F02D2400/12 ,  F16H59/70 ,  F16H2059/467 ,  Y10T477/679

摘要： A working vehicle motor control device includes: a rotational speed control device that controls a motor rotational speed in accordance with an operation amount of an accelerator pedal; a travel drive device that transmits rotation of the motor to wheels through a torque converter and a transmission; a speed ratio detection device that detects a speed ratio of an input shaft and an output shaft of the torque converter; and a speed restriction device that restricts a maximum rotational speed of the motor in accordance with a speed ratio detected by the speed ratio detection device. In the working vehicle motor control device, the speed restriction device restricts the maximum rotational speed when a detected speed ratio is in an acceleration region of the motor rotational speed to less than the maximum rotational speed when a detected speed ratio is in a non-acceleration region.

摘要翻译： 工作车辆电动机控制装置包括：转速控制装置，其根据加速器踏板的操作量来控制电动机的转速; 行驶驱动装置，其通过变矩器和变速器将电动机的旋转传递到车轮; 变速比检测装置，其检测所述变矩器的输入轴和输出轴的速比; 以及速度限制装置，其根据由速比检测装置检测的速比来限制电动机的最大转速。 在作业车辆电动机控制装置中，当检测速度比处于非加速度时，速度限制装置将检测到的速比在电动机转速的加速区域中的最大转速限制为小于最大转速 地区。