公开(公告)号：US11326453B2

公开(公告)日：2022-05-10

申请号：US16820726

申请日：2020-03-17

申请人： Lucas Ihsl

发明人： Lucas Ihsl

IPC分类号： F01C21/08 ,  F15B15/04 ,  F01D15/08 ,  F15B9/02 ,  F15B20/00 ,  F16H19/02 ,  F01C1/344 ,  F04C18/344

摘要： Provided are: a displacement expanding apparatus, which uses environmentally friendly electrical energy to generate rotational power; and an engine including the displacement expanding apparatus, the novel engine having improved performance and a long lifespan. Also, to realize a novel engine, provided is a novel engine which is environmentally friendly and has a long lifespan.

公开(公告)号：US11199204B2

公开(公告)日：2021-12-14

申请号：US16812841

申请日：2020-03-09

申请人： SKF LUBRICATION SYSTEMS GERMANY GMBH

发明人： Dieter Hess ,  Juergen Kreutzkaemper ,  Stefan Schuermann

IPC分类号： F15B15/04

摘要： A switching device for alternately connecting a hydraulic drive of a lubricating pump to a pressure line and to a return line of a hydraulic circuit. The switching device includes first and second drive lines connected to the hydraulic drive, and pressure and return drive lines connected to the pressure and return lines. A switching valve is in fluid communication with the drive lines and is switchable between first and second switching states to connect the pressure drive line to the first drive line or to the second drive line. A plurality of hydraulic control lines control the position of the switching valve. The drive lines are configured to conduct a first volumetric flow of hydraulic fluid and the hydraulic control lines are configured to conduct a second volumetric flow of the hydraulic fluid different than the first volumetric flow.

公开(公告)号：US10926750B2

公开(公告)日：2021-02-23

申请号：US16278055

申请日：2019-02-16

申请人： NANJING JWD AUTOMOTIVE TECHNOLOGY CO., LTD.

发明人： Weiwen Deng ,  Nenggen Ding

IPC分类号： B60T13/74 ,  F15B15/04 ,  F15B15/14

摘要： A servo brake cylinder for a distributed brake system with an electric motor, a ball screw assembly with a lead screw and a nut, a piston, a cylinder body is disclosed. The electric motor is connected to the ball screw assembly. The piston is installed in the hollow inner space of the cylinder body, slidable axially. The piston has a hole at the center formed by three sections of surfaces including a first cone surface, a cylindrical surface a second cone surface. One end of the lead screw is connected with the nut, and the other end at the tip of the lead screw has three sections of surfaces including a gradually constricting cone surface from the tip followed by a cylindrical surface, further followed by a gradually expanding cone surface. These surface sections at the lead screw and the three sections of the surfaces at the hole of the piston form an inlet valve and an outlet valve between the piston and the lead screw.

公开(公告)号：US20200063643A1

公开(公告)日：2020-02-27

申请号：US16546630

申请日：2019-08-21

申请人： Power Tech Staple and Nail, Inc.

发明人： RAYMOND WONG ,  SHIH-YI CHEN ,  CHIN-CHUAN CHEN

IPC分类号： F02B29/08 ,  B25C1/04 ,  F15B15/04

摘要： A novel combustion chamber valve and fuel system for driven fastener hand tool is disclosed having a fuel pump disposed parallel to the combustion and piston chambers. Pressure applied a safety at the nose of the tool is activates the fuel pump in a common direction. Pressure applied on a trigger activates the valve system prior to firing in a common direction. The valve system employs a central shaft coupling three valves, an inlet valve using a novel wedged circumferential edge seal, a control valve using a novel edge circumferential seal with a ventilated support, and a charging exaust valve using a face seal.

公开(公告)号：US10202986B2

公开(公告)日：2019-02-12

申请号：US15107954

申请日：2014-12-15

申请人： KCM Corporation

发明人： Shinichiro Tanaka ,  Hiroyasu Kodera

IPC分类号： B62D5/065 ,  F15B11/048 ,  B62D5/07 ,  E02F9/08 ,  E02F9/22 ,  F15B11/16 ,  B62D5/06 ,  B62D5/08 ,  B62D5/10 ,  F04B49/06 ,  F04B49/22 ,  F15B5/00 ,  F15B15/04 ,  F15B15/24

摘要： A hydraulic drive system (1) including a meter-in compensator (37) and a bleed-off compensator (42) comprises a plurality of sensors (64 to 68), a controller (62), and an outlet pressure switching valve (61). The controller (62) determines whether or not the state of a wheel loader (2) which is detected based on the signals output from the sensors (64 to 68) meets a predetermined steering limiting condition. When the controller (62) determines that the state of the wheel loader (2) meets the steering limiting condition, it outputs a command signal to the outlet pressure switching valve (61). The outlet pressure switching valve (61) reduces the flow rate of the hydraulic oil flowing to steering cylinders (18L, 18R), in response to the command signal in such a manner that the flow rate becomes lower than that corresponding to the operation amount of a handle of a steering device (35).

公开(公告)号：US20160319848A1

公开(公告)日：2016-11-03

申请号：US15107954

申请日：2014-12-15

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： Shinichiro Tanaka ,  Hiroyasu Kodera

IPC分类号： F15B11/048 ,  F15B15/04 ,  F15B15/24 ,  B62D5/06 ,  F04B49/22 ,  B62D5/08 ,  B62D5/10 ,  F15B5/00 ,  F04B49/06

CPC分类号： F15B11/048 ,  B62D5/062 ,  B62D5/065 ,  B62D5/07 ,  B62D5/08 ,  B62D5/10 ,  B62D6/02 ,  E02F9/0841 ,  E02F9/2228 ,  E02F9/225 ,  E02F9/2296 ,  F04B1/295 ,  F04B1/324 ,  F04B49/065 ,  F04B49/225 ,  F04B2205/09 ,  F15B5/00 ,  F15B11/162 ,  F15B15/04 ,  F15B15/24 ,  F15B2211/30535 ,  F15B2211/45 ,  F15B2211/50563 ,  F15B2211/50572 ,  F15B2211/5151 ,  F15B2211/5756 ,  F15B2211/781

摘要： A hydraulic drive system (1) including a meter-in compensator (37) and a bleed-off compensator (42) comprises a plurality of sensors (64 to 68), a controller (62), and an outlet pressure switching valve (61) The controller (62) determines whether or not the state of a wheel loader (2) which is detected based on the signals output from the sensors (64 to 68) meets a predetermined steering limiting condition. When the controller (62) determines that the state of the wheel loader (2) meets the steering limiting condition, it outputs a command signal to the outlet pressure switching valve (61). The outlet pressure switching valve (61) reduces the flow rate of the hydraulic oil flowing to steering cylinders (18L, 18R), in response to the command signal in such a manner that the flow rate becomes lower than that corresponding to the operation amount of a handle of a steering device (35).

摘要翻译： 包括补偿器（37）和泄放补偿器（42）的液压驱动系统（1）包括多个传感器（64至68），控制器（62）和出口压力切换阀（61） ）控制器（62）确定基于从传感器（64至68）输出的信号检测到的轮式装载机（2）的状态是否满足预定的转向限制条件。 当控制器（62）确定轮式装载机（2）的状态满足转向限制条件时，它向出口压力切换阀（61）输出命令信号。 出口压力切换阀61响应于指令信号使流量变得低于对应于操作量的操作量的方式降低流向转向缸（18L，18R）的液压油的流量 转向装置（35）的手柄。

公开(公告)号：US20160252109A1

公开(公告)日：2016-09-01

申请号：US15033363

申请日：2014-10-29

申请人： RAVEN INDUSTRIES, INC.

发明人： Jesse Wagers

IPC分类号： F15B15/04 ,  F15B15/20 ,  F15B15/08

CPC分类号： F15B15/04 ,  F15B11/161 ,  F15B15/088 ,  F15B15/204 ,  F16H61/4008 ,  F16H61/4035 ,  F16H61/4061 ,  F16H61/421 ,  F16H61/46

摘要： A load based pressure and flow control system including a variable displacement hydraulic motor and a flow control valve coupled with a motor inlet. A motor inlet pressure sensor is interposed between the variable displacement hydraulic motor and the flow control valve, the motor inlet pressure sensor configured to measure a motor inlet pressure at the motor inlet. An output sensor is coupled with a motor output of the variable displacement hydraulic motor and configured to measure an output characteristic of the variable displacement hydraulic motor. A displacement and flow controller of the system is configured to change displacement of the variable displacement hydraulic motor according to a pressure difference across the flow control valve between the measured motor inlet pressure and a hydraulic system pressure, and change a flow rate of hydraulic fluid through the flow control valve according to the measured output characteristic of the hydraulic motor.

摘要翻译： 一种基于负载的压力和流量控制系统，包括可变排量液压马达和与马达入口结合的流量控制阀。 电动机入口压力传感器介于可变排量液压马达和流量控制阀之间，电动机入口压力传感器被配置为测量马达入口处的马达入口压力。 输出传感器与可变排量液压马达的马达输出端相连，并被配置成测量可变排量液压马达的输出特性。 系统的位移和流量控制器被配置为根据测量的电动机入口压力和液压系统压力之间的流量控制阀上的压力差来改变可变排量液压马达的位移，并且改变液压流体通过的流量 流量控制阀根据液压马达的测量输出特性。

公开(公告)号：US09415880B2

公开(公告)日：2016-08-16

申请号：US14182138

申请日：2014-02-17

申请人： Hamilton Sundstrand Corporation

发明人： David Everett Russ

IPC分类号： F15B15/04 ,  B64D41/00 ,  F15B15/14 ,  F15B15/26

CPC分类号： B64D41/007 ,  F15B15/04 ,  F15B15/1476 ,  F15B15/262

摘要： An assembly includes an actuator assembly having a housing, a piston positioned at least partially within the housing and movable relative to the housing for an overall actuation stroke, a first spring operatively engaged between the piston and the housing to provide actuation biasing force therebetween, a second spring operatively engaged with the piston, and a spring guide. The spring guide is operatively engaged with the first spring and operatively engaged with the piston via a sliding connection. The spring guide is further configured to limit a stroke of the first spring such that the first spring contributes actuation biasing force between the piston and the housing for only a fractional portion of the overall actuation stroke of the piston.

摘要翻译： 组件包括具有壳体的致动器组件，至少部分地位于壳体内的活塞，并且相对于壳体可移动以用于整个致动行程;第一弹簧，其可操作地接合在活塞和壳体之间，以在它们之间提供致动偏置力， 与活塞可操作地接合的第二弹簧和弹簧引导件。 弹簧引导件与第一弹簧可操作地接合并且通过滑动连接与活塞可操作地接合。 弹簧引导件进一步构造成限制第一弹簧的行程，使得第一弹簧仅在活塞的整个致动行程的一小部分中仅贡献活塞和壳体之间的致动偏置力。

公开(公告)号：US20130133317A1

公开(公告)日：2013-05-30

申请号：US13304719

申请日：2011-11-28

申请人： Brandon Zumbrum

发明人： Brandon Zumbrum

IPC分类号： F15B15/04

CPC分类号： A61G3/006 ,  A61G3/0825 ,  A61G3/0875 ,  B60P7/16

摘要： An ambulance shock-absorbing platform for stretcher. The ambulance shock-absorbing platform for stretcher has a plurality of gas actuators mounted to an ambulance floor, and a stage mounted atop the gas actuators. A prime mover drives a pump to actuate the gas actuators to raise the level of the stage to provide shock absorption; a valve may be opened to vent the gas actuators to reduce the stage height for rolling a stretcher on and off the stage. Means to limit the upper and lower stage ends-of-travel is disclosed, and means to control stage height. An M bar and hook are mounted to the stage; a stretcher may be locked into place by means of the M bar, the hook support, and a hook slidably attached to the hook support.

摘要翻译： 用于担架的救护员减震平台。 用于担架的救护车减震平台具有安装在救护车地板上的多个气体致动器，以及安装在气体致动器顶部的平台。 原动机驱动泵来致动气体致动器以提高级的水平以提供减震; 可以打开阀门以排出气体致动器，以减小用于在担架上和从舞台上滚动担架的台架高度。 公开了限制上下台阶行程的手段，以及控制台高的手段。 M杆和钩子安装在舞台上; 担架可以通过M杆，钩支撑件和可滑动地附接到钩支撑件的钩锁定到位。

公开(公告)号：US5931739A

公开(公告)日：1999-08-03

申请号：US173764

申请日：1993-12-27

申请人： John Christian Layer ,  Gregory Joseph Guzewich ,  Larry D. Hall

发明人： John Christian Layer ,  Gregory Joseph Guzewich ,  Larry D. Hall

IPC分类号： A63G31/04 ,  F15B15/04 ,  F15B20/00 ,  F15B21/08 ,  F16P7/00 ,  G09B9/02 ,  G09B9/05 ,  G09B9/12

CPC分类号： G09B9/02 ,  G09B9/05 ,  G09B9/12

摘要： A fail-safe ride simulator (10) broadly includes a base (11), a platform (13) mounted for movement relative to the base, an actuation mechanism (14) operatively arranged between the platform and an actuation mechanism operatively arranged between the platform and the base. The actuation mechanism includes a plurality of electro-mechanical servoactuators (23) acting between the platform and base for causing relative movement therebetween. A fail-safe circuit (34) is operatively arranged to continuously monitor the condition of the actuation mechanism, and to cause the platform to move automatically toward a predetermined position relative to the base in the event of an unsafe condition in the actuation mechanism.

摘要翻译： 一种故障安全驾驶模拟器（10）广泛地包括基座（11），安装成相对于基座移动的平台（13），可操作地布置在平台和可操作地布置在平台之间的致动机构 和基地。 致动机构包括作用在平台和底座之间的多个机电伺服致动器（23），用于在它们之间产生相对运动。 故障安全电路（34）可操作地布置成在致动机构中处于不安全状态的情况下，连续地监视致动机构的状态，并使平台相对于基座自动移动到相对于基座的预定位置。