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1. 发明授权

US4694189A Control system for variable speed hydraulic turbine generator apparatus 失效
标题翻译：变速水轮发电机控制系统
公开(公告)号：US4694189A
公开(公告)日：1987-09-15
申请号：US911131
申请日：1986-09-24
申请人： Eiji Haraguchi , Hiroto Nakagawa , Akira Bando , Takao Kuwahara , Haruo Nohara , Kenichi Ono
发明人： Eiji Haraguchi , Hiroto Nakagawa , Akira Bando , Takao Kuwahara , Haruo Nohara , Kenichi Ono
IPC分类号： H02P9/00 , H02P9/42 , F01D15/10
CPC分类号： H02P9/007 , H02P9/42
摘要： A control system for variable speed hydraulic turbine generator apparatus comprises an induction generator connected at its primary side to an AC power line system, a secondary excitation controller connected to the secondary side of the induction generator and being responsive to a generator output command signal supplied externally to supply to the induction generator an excitation current which causes the induction generator to generate AC power at the same frequency as that on the AC power line system, a hydraulic turbine for rotating the induction generator, a guide valve for regulating the amount of water supplied to the hydraulic turbine, a rotation speed detector for detecting a rotation speed of the induction generator, a rotation speed command calculator for receiving a hydraulic turbine running condition signal inclusive of the external generator output command signal and calculating an optimum rotation speed command, a rotation speed controller for comparing the optimum rotation speed command with a rotation speed signal from the rotation speed detector and producing a guide valve opening control signal in accordance with a difference between the optimum rotation speed command and the rotation speed signal, and a guide valve driver responsive to the guide valve opening control signal to deliver to the guide valve a signal which controls the opening of the guide valve in accordance with the guide valve opening control signal.
摘要翻译：一种用于变速水轮机发电机装置的控制系统包括：其初级侧连接到AC电力线系统的感应发电机，连接到感应发电机的次级侧的辅助励磁控制器，并响应于外部提供的发电机输出指令信号向感应发电机提供励磁电流，其使感应发电机产生与AC电力线系统相同的频率的AC电力，用于旋转感应发电机的水轮机，用于调节供水量的导向阀水轮机，用于检测感应发电机的转速的转速检测器，用于接收包括外部发电机输出指令信号的水轮机行驶状态信号并计算最佳转速指令的转速指令运算器，旋转速度控制器，用于比较最佳腐烂并且根据最佳转速指令和转速信号之间的差产生导向开阀控制信号，以及响应于导向阀打开控制的导向阀驱动器信号，以向导阀传送根据导向阀打开控制信号控制导向阀打开的信号。

2. 发明授权

US06273164B1 Motorcycle tire with different modulus carcass layers 有权
标题翻译：具有不同模数胎体层的摩托车轮胎
公开(公告)号：US06273164B1
公开(公告)日：2001-08-14
申请号：US09345379
申请日：1999-06-30
申请人： Takao Kuwahara
发明人： Takao Kuwahara
IPC分类号： B60C904
CPC分类号： B60C15/0018 , B60C9/04 , B60C9/06 , B60C2015/009 , Y10T152/10873
摘要： A motorcycle tire comprises a carcass composed of a low-modulus layer disposed along the inside of the tire and a high-modulus layer disposed outside thereof, the high-modulus layer comprising a high-modulus ply, and the low-modulus layer comprising a low-modulus ply. Preferably, the cords of each ply are inclined at a bias angle of from 20 to 50 degrees with respect to the tire equator so that the carcass has a bias structure. The low-modulus layer is composed of two low-modulus plies of low-modulus cords extending between bead portions through a tread portion and sidewall portions and turned up around a bead core disposed in each bead portion. The high-modulus layer is composed of a single high-modulus ply of high-modulus cords extending between the sidewall portions through the tread portion and terminated at a position radially outward of the bead cores but radially inward of the maximum width position of the carcass.
摘要翻译：摩托车轮胎包括由沿着轮胎内部设置的低模量层和设置在其外侧的高模量层构成的胎体，所述高模量层包括高模量层，并且所述低模量层包含低模量层。优选地，每个帘布层的帘线相对于轮胎赤道以20至50度的倾斜角度倾斜，使得胎体具有偏置结构。低模量层由两个通过胎面部分和侧壁部分在胎圈部分之间延伸的低模量帘线的低模量层组成，并且围绕设置在每个胎圈部分中的胎圈芯卷起。高模量层由高模量帘线组成，高模量帘布层通过胎面部分延伸在侧壁部分之间，并且终止于胎圈芯径向向外的位置，但是在胎体的最大宽度位置的径向内侧。

3. 发明授权

US06318427B1 Tire system for motorcycles including annular tire core with radially inner groove 失效
标题翻译：摩托车轮胎系统，包括具有径向内凹槽的环形轮胎芯
公开(公告)号：US06318427B1
公开(公告)日：2001-11-20
申请号：US09257948
申请日：1999-02-26
申请人： Kenichi Fujiwara , Takao Kuwahara
发明人： Kenichi Fujiwara , Takao Kuwahara
IPC分类号： B60C502
CPC分类号： B60C19/122 , B60C5/002 , B60C17/06 , B60C17/065 , Y10T152/10054 , Y10T152/10126 , Y10T152/10171
摘要： A tire system for motorcycles comprises a pneumatic tire having a cavity, an annular tire core made of an elastic closed-cell material disposed in the cavity and provided on the radially inside with a groove, and a pressure bag inserted in the groove, wherein: in a free state of the tire core not disposed in the cavity, the cross sectional area Sa of the tire core is in the range of from 3.1 to 4.8 times the cross sectional area Sb of the groove; and the total Sa+Sb of the cross sectional area Sa of the tire core and the cross sectional area Sb of the groove is in the range of from 1.0 to 1.3 times the cross sectional area Sc of the cavity.
摘要翻译：一种用于摩托车的轮胎系统包括具有空腔的充气轮胎，由设置在腔中的弹性闭孔材料制成的环形轮胎芯，并且在径向内侧设置有凹槽，以及插入在凹槽中的压力袋，其中：在不设置在空腔中的轮胎芯的自由状态下，轮胎芯的横截面积Sa在槽的横截面积Sb的3.1〜4.8倍的范围内; 并且轮胎芯的横截面面积Sa的总Sa + Sb和槽的横截面积Sb在空腔的横截面面积Sc的1.0〜1.3倍的范围内。

4. 外观设计

USD335847S Automobile tire 失效
公开(公告)号：USD335847S
公开(公告)日：1993-05-25
申请号：US685706
申请日：1991-04-16
申请人： Takao Kuwahara
设计人： Takao Kuwahara

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