公开(公告)号：US08818574B2

公开(公告)日：2014-08-26

申请号：US13678284

申请日：2012-11-15

申请人： NABTESCO Corporation ,  BAE Systems Controls, Inc.

发明人： Atsushi Fukui ,  Atsushi Mori ,  Steven Bessette ,  Gary Ellsworth ,  Dino Gianisis

IPC分类号： G01C23/00

CPC分类号： G06F17/00 ,  B64C13/503 ,  G05D1/0077

摘要： A plurality of control channels each include a power supply, an interface that receives a manipulation signal, an arithmetic processing portion that calculates and generates an operation command signal for actuators based on the manipulation signal, and a signal determination unit that determines a control signal for finally controlling the operation of the actuators and outputs the control signal. The arithmetic processing portions respectively provided in the plurality of control channels have designs different from one another. Each of the signal determination units determines the control signal by receiving a first operation command signal generated by the arithmetic processing portion of the control channel in which that signal determination unit is provided, and a second operation command signal generated in the arithmetic processing portion of another of the control channels, and comparing the first operation command signal and the second operation command signal, and outputs the control signal.

摘要翻译： 多个控制通道各自包括电源，接收操作信号的接口，运算处理部分，其基于操作信号计算并产生用于致动器的操作命令信号;以及信号确定单元，其确定用于 最终控制致动器的操作并输出控制信号。 分别设置在多个控制信道中的算术处理部分具有彼此不同的设计。 每个信号确定单元通过接收由其中提供信号确定单元的控制信道的算术处理部分产生的第一操作命令信号和在另一个的算术处理部分中生成的第二操作命令信号来确定控制信号 并且比较第一操作命令信号和第二操作命令信号，并输出控制信号。

公开(公告)号：US10443584B2

公开(公告)日：2019-10-15

申请号：US15371938

申请日：2016-12-07

申请人： NABTESCO CORPORATION

发明人： Masahiko Maruoka ,  Atsushi Fukui

IPC分类号： F04B1/12 ,  F04B1/20 ,  F04B17/03 ,  F15B11/08 ,  F04B49/20

摘要： A fluid pressure pump and a fluid pressure system in which leakage of fluid and ablation of a cylinder block and a port plate can be prevented by pressing the cylinder block to the port plate with an appropriate pressing force. A hydraulic pump includes a cylinder block that has a cylinder chamber that may be in communication with an oil passage of a port plate and in which a piston is housed; and a cylinder block pressing means imparting, to the cylinder block, a pressing force that presses the cylinder block to the port plate. The cylinder block pressing mechanism has a changing means that changes the force that presses the cylinder block to the port plate.

公开(公告)号：US10352169B2

公开(公告)日：2019-07-16

申请号：US14974192

申请日：2015-12-18

申请人： NABTESCO CORPORATION

发明人： Koji Ito ,  Atsushi Fukui

IPC分类号： F01C21/08 ,  F01C9/00 ,  F01C21/02 ,  F04C15/00 ,  F15B15/12

摘要： A rotary actuator includes an output shaft, a housing, a piston, and a friction reducer. The housing includes an arcuate bore that extends around the output shaft. The piston is coupled to the output shaft and moved in the arcuate bore. Pressure fluid acts to move the piston. The friction reducer is configured to reduce friction between a peripheral surface of the piston and an inner circumferential surface of the housing forming the arcuate bore.

公开(公告)号：US09624914B2

公开(公告)日：2017-04-18

申请号：US13776284

申请日：2013-02-25

申请人： NABTESCO CORPORATION

发明人： Masahiko Maruoka ,  Atsushi Fukui

IPC分类号： F04B1/12 ,  F04B1/20 ,  F04B1/32

CPC分类号： F04B1/20 ,  F04B1/124 ,  F04B1/2085 ,  F04B1/324

摘要： A rotational shaft 22 receives input of torque that is output from an electric motor 19. A housing 23 rotatably supports the rotational shaft 22. A cylinder block 24 inside the housing 23 rotates with the rotational shaft 22. The pistons 25 are supported relative to the respective cylinder chambers 24a in the cylinder block 24 so as to be slidably displaceable. A swash plate 26 is provided so as to come into contact with ends of the pistons 25 and be rotatable around the rotational shaft 22 with the pistons 25, and be rotatable about a rotation centerline that is obliquely inclined relative to the rotational shaft 22. A case 27 inside the housing 23 is pivotably supported relative to the housing 23. A bearing portion 28 holds the swash plate 26 relative to the case 27 so as to be rotatable around the rotation centerline.

公开(公告)号：US10408198B2

公开(公告)日：2019-09-10

申请号：US15371938

申请日：2016-12-07

申请人： NABTESCO CORPORATION

发明人： Masahiko Maruoka ,  Atsushi Fukui

IPC分类号： F04B1/12 ,  F04B1/20 ,  F04B17/03 ,  F15B11/08 ,  F04B49/20

摘要： A fluid pressure pump and a fluid pressure system in which leakage of fluid and ablation of a cylinder block and a port plate can be prevented by pressing the cylinder block to the port plate with an appropriate pressing force. A hydraulic pump includes a cylinder block that has a cylinder chamber that may be in communication with an oil passage of a port plate and in which a piston is housed; and a cylinder block pressing means imparting, to the cylinder block, a pressing force that presses the cylinder block to the port plate. The cylinder block pressing mechanism has a changing means that changes the force that presses the cylinder block to the port plate.