| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | 緊急遮断装置及びこれを備える緊急遮断システム | JP2016561121 | 2014-11-26 | JPWO2016084140A1 | 2017-10-19 | 隆 新山; 賢 西谷; 広和 河島; アベイ ジェイン |
| 緊急遮断装置は、内部に設けられた空間(A1)に制御油を流入させる流入口(22)と空間(A1)から前記制御油を流出させる複数の流出口(23)とが形成されている筐体(21)と、空間(A1)を形成する筐体(21)の内周面に摺動することで前記複数の流出口(23)との相対位置を変化させて、空間(A1)内での前記制御油の流通状態を切り替える切替部(24)と、を備える。切替部(24)は、第一流入口(221)から第一流出口(231)まで前記制御油を流通させる第一流通状態と、第一流入口(221)から第一流出口(231)まで前記制御油を流通させながら、試験流出口(236)の開閉状態が切り替えられる第三流通状態とに、前記流通状態を切り替える。 | ||||||
| 242 | 荷役車両 | JP2016048408 | 2016-03-11 | JP2017160038A | 2017-09-14 | 加藤 紀彦; 小出 幸和 |
| 【課題】荷役動作の一時的な停止を防止することができる荷役車両を提供する。 【解決手段】フォークリフト1は、エンジン8により駆動される油圧ポンプ9と、油圧ポンプ9からの作動油によって動作する荷役装置2と、荷役装置2を動作させる指示操作を行うためのティルト操作レバー13と、油圧ポンプ9と荷役装置2との間に配設されたティルト用電磁比例制御弁15と、ティルト操作レバー13の操作状態に応じてティルト用電磁比例制御弁15を制御するティルト用電磁比例制御弁制御部24と、エンジン8の回転数を検出する回転数センサ20とを備え、ティルト用電磁比例制御弁制御部24は、回転数センサ20により検出されたエンジン8の回転数が所定回転数よりも低いときは、ティルト用電磁比例制御弁15の開度が一定時間だけ制限されるようにティルト用電磁比例制御弁15を制御する。 【選択図】図1 |
||||||
| 243 | Method and apparatus for controlling a dead zone of the fluid system | JP2000608097 | 2000-03-24 | JP4746750B2 | 2011-08-10 | エヌ．オニール ウィリアム; ピー．ディーツ ハンス; ジェイ．ジャンソン ブレット; エイ．コボ マイケル |
| 244 | Method and apparatus for controlling a dead zone of the fluid system | JP2000608097 | 2000-03-24 | JP2002540366A | 2002-11-26 | エヌ．オニール ウィリアム; ピー．ディーツ ハンス; ジェイ．ジャンソン ブレット; エイ．コボ マイケル |
| (57)【要約】 本発明は、流体系（１０２）を制御する方法および装置を提供する。 流体系（１０２）は、エンジン（１０６）によって駆動されるポンプ（３２）を有する液圧回路（１０４）を含む。 ポンプ（３２）は、弁アセンブリ（１２０，１２４）を通してアクチュエータ（４４，４５）へ流体を送る。 この方法は、操作者の入力を受け取り、液圧回路（１０４）の状態を決定し、液圧回路の状態および操作者の入力に応じて弁コマンドを決定し、弁コマンドを弁アセンブリ（１２２）へ送るステップを含む。 | ||||||
| 245 | Test methods and apparatus of the fluid pressure device | JP50739697 | 1996-07-16 | JPH10507512A | 1998-07-21 | ラファウンテイン，ロバート，ヘンリー |
| (57)【要約】 原動機付き乗物用の流体圧クラッチ制御アセンブリ(12)等の流体圧アセンブリのテスト及び充填を行うための方法及び装置。 導管(36b)が該アセンブリの圧力チャンバと連通状態で配置され、該導管を介して圧力チャンバ内から空気が吸い出されると共に、圧力チャンバ内の漸進的に傾斜する圧力を表す一連の圧力の読み取りが該導管内で行われ、その圧力の読みが用いられて真空特性(114)が生成され、その真空特性が、許容可能な流体圧アセンブリに対応する予め格納されている真空特性と比較され、生成された真空特性と格納されている真空特性との一致に基づいて当該流体圧アセンブリが拒絶または許容され、当該アセンブリが許容された場合には、前記導管を介して流体が供給されて当該アセンブリの圧力チャンバが漸進的に充填されると共に、充填プロセス中の圧力チャンバ内の圧力を表す一連の圧力の読み取りが行われ、その充填圧力の読みが用いられて充填特性(116)が生成され、その充填特性が、許容可能なアセンブリに対応する予め格納されている充填特性と比較され、生成された充填特性と格納されている充填特性との一致に基づいて当該アセンブリが拒絶または許容される。 | ||||||
| 246 | JPH0554059B2 - | JP370184 | 1984-01-13 | JPH0554059B2 | 1993-08-11 | NIIRU HOWAISUNANDO; RICHAADO TAUBAA |
| 247 | General-purpose hydraulic test system | JP370184 | 1984-01-13 | JPS59159045A | 1984-09-08 | NIIRU HOWAISUNANDO; RICHIYAADO TAUBAA |
| 248 | LOCALLY-ACTUATED PARTIAL STROKE TESTING SYSTEM | US15400980 | 2017-01-07 | US20180195637A1 | 2018-07-12 | Fawaz A. AlSahan |
| Embodiments of the present disclosure describe both mechanically-operated and electrically-operated, locally-actuated partial stroke testing devices and systems for testing operation of an emergency isolation valve. | ||||||
| 249 | Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring | US14680667 | 2015-04-07 | US09938970B2 | 2018-04-10 | Andrew A. Cheng; James J. Gu; Graham A. Scott |
| The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received. | ||||||
| 250 | CARGO VEHICLE | US15455924 | 2017-03-10 | US20170260033A1 | 2017-09-14 | Norihiko KATO; Yukikazu KOIDE |
| A cargo vehicle includes a hydraulic pump driven by an engine, a cargo handling apparatus operated by hydraulic oil from the hydraulic pump, a cargo operating unit for performing an instruction operation to operate the cargo handling apparatus, an electromagnetic proportional control valve disposed between the hydraulic pump and the cargo handling apparatus, a valve controller that controls the electromagnetic proportional control valve depending on an operation state of the cargo operating unit, and a revolution detector that detects a revolution of the engine, wherein the valve controller controls the electromagnetic proportional control valve such that an opening degree of the electromagnetic proportional control valve is limited for a certain time when the revolution of the engine detected by the revolution detector is lower than a predetermined value. | ||||||
| 251 | Compressed-Air System Having a Safety Function and Method for Operating Such a Compressed-Air System | US15307271 | 2015-03-06 | US20170051768A1 | 2017-02-23 | Josef Sauer; Alexander Vargas; Manfred Jainczyk; Eckard Roos; Peter Beil |
| A compressed-air system having a safety function and a method for operating such a compressed-air system. The compressed-air system contains two working valves, which each can selectively assume an aerating position that aerates a load and a venting position that vents the load. Both working valves are redundantly connected on the output side to the load by means of a separating device. The separating device allows one or the other of the working valves to be separated, while the aeration of the load is maintained, in order to subject the one or the other working valve to an examination of the switching function of the one or the other working valve. | ||||||
| 252 | HYDRAULIC CONTROL SYSTEM HAVING BIAS CURRENT CORRECTION | US14285998 | 2014-05-23 | US20150337871A1 | 2015-11-26 | Hongliu Du |
| A hydraulic control system for a machine is disclosed. The hydraulic control system may include a pump configured to pressurize fluid, a displacement control valve configured to affect displacement of the pump, and a solenoid configured to bias the displacement control valve to a zero position. The hydraulic control system may also include a controller in communication with the solenoid. The controller may be configured to estimate a bias current that biases the displacement control valve to the zero position, and to control the displacement control valve based on the bias current. The controller also be further configured to monitor a pump parameter of the pump, and to determine a control error associated with the pump parameter. The controller may further be configured to selectively adjust the bias current based on the control error. | ||||||
| 253 | Sensor Arrangement for a Rotatable Element | US14640972 | 2015-03-06 | US20150260550A1 | 2015-09-17 | Martin Roy Harrison; Philip Samuel Pickles; Peter Wherritt |
| A sensor arrangement for a rotatable element comprises two coils capable of being driven by oscillatory drive signals to generate electromagnetic fields. The coils are in different positions overlying a cylindrical portion of the rotatable element that has a target feature configured to interact with the generated electromagnetic fields when the target feature is aligned with the coils. Alignment between the target feature and the coils occurs at angular positions of the rotatable element that are offset for respective coils. Thus, by detecting a characteristic of the signals developed across the coils allowing derivation of an angular velocity signal representative of angular velocity. Also, the degree of interaction between the target feature and the electromagnetic fields varies with the axial position of the rotatable element, differentially between the coils, allowing derivation of an axial position signal representative of the axial position of the rotatable element. | ||||||
| 254 | INTERNAL POSITION SENSOR | US14413245 | 2013-07-09 | US20150167703A1 | 2015-06-18 | Ronald P. Typinski; Dennis R. Que; Scott J. Abramczyk |
| A piston actuator (10) includes a housing (12) having a hollow interior (12a) for enclosing a piston (14) defined by a head (14a) and a rod (14b). The piston (14) can reciprocate between first and second end limits of travel within the housing (12) and separates the housing (12) into first and second expandable fluid chambers (16a, 16b). The housing (12) has a rod-end opening (12b) at one end and a head-end opening (12c) at an opposite end. The piston (14) can include a longitudinally extending aperture (14c) formed therein with an open end (14d) facing the head-end opening (12c) of the housing (12). A magnet (18) can be supported by the piston (14) adjacent to the open end (14d) of the longitudinally extending aperture (14c) in the piston (14). A position sensor (20) can be supported by the housing (12) within the longitudinally extending aperture (14c) in the piston (14) adjacent to the magnet (18) for sensing the position of the piston (14) during movement between the first and second end limits of travel within the housing (12). | ||||||
| 255 | SYSTEM FOR POSITION MEASURING AND INTEGRITY MEASURING | US14397800 | 2013-04-29 | US20150085613A1 | 2015-03-26 | David Christian Petersen; Jan Martin Bendiksen; Petter F. Schmedling; Morten Roll Karlsen; Roland Elsenträger; Audun G. Kolle |
| A system for measuring the position of a rod element as, for example, a hydraulically or pneumatically operated piston rod. Unlike the prior art, the system according to the present invention employs a measuring principle that does not require preparatory treatment of the rod element as is required in the known solutions. The system employs direct time of flight measurements with the aid of acoustic surface waves that are introduced into the rod element. The instrument is retrofittable on existing cylinders without any modification/ reconstruction thereof An EMAT principle is employed to introduce the surface waves into the measurement in a non-contact manner. | ||||||
| 256 | Hydraulic valve control circuit and method for checking the function of a hydraulic valve control circuit | US12436250 | 2009-05-06 | US08189316B2 | 2012-05-29 | Dieter Keller |
| A hydraulic valve control circuit of a hydraulic valve comprises an external voltage supply, an output stage having a voltage supply input and at least one output configured to actuate an actuator of the hydraulic valve, an overcurrent protective device disposed in a path between the external voltage supply and the voltage supply input, an enable input configured to activate and deactivate the output stage, and a switch configured to connect the at least one output to a fixed potential when the output stage is deactivated. | ||||||
| 257 | Device and method for controlling the state of an energy accumulator | US11491772 | 2006-07-24 | US20070118325A1 | 2007-05-24 | Yann Nicolas; Jean-Michel Pascual; Cedric Tallot; Nicolas Doubois |
| The invention concerns a device and method for checking the state of an accumulator with energy reserve that is connected to a fluid system. According to the invention, the fluid system is first of all pressurized and this fluid is maintained at an operating pressure PF for at least a time τ so as to ensure the stabilization of this fluid system. Then the pressurisation of the fluid system is stopped and the time Δt taken by the system to pass from a predetermined pressure P1 to a predetermined pressure P2, with P2 | ||||||
| 258 | System for temperature-controlled testing of hydraulically actuated devices | US10710713 | 2004-07-29 | US07197950B2 | 2007-04-03 | Scott D. Maxwell; Dale H. Smith; Marcus A. Topp |
| A temperature controlled hydraulic fluid supply circuit (12) includes a first hydraulic fluid reservoir (18), that has an initial hydraulic fluid (20), and a temperature controlled housing (45). A second hydraulic fluid reservoir (26) is fluidically coupled to the first hydraulic fluid reservoir (18), resides within the temperature controlled housing (45), and has a controlled hydraulic fluid (14) that is supplied to a test device (16). A circulation device (60) circulates a temperature altering fluid (62) through the temperature controlled housing (45) and adjusts the temperature of the controlled hydraulic fluid (14). | ||||||
| 259 | Servo mechanism test stand | US10889543 | 2004-07-09 | US07117715B2 | 2006-10-10 | David D. Soley |
| An apparatus to test a servo mechanism that has an electric, servo controlled motor includes a portable frame, a fluid source carried by the frame, a mounting station carried by the frame and adapted to receive a servo mechanism. The mounting station has a power connector through which electric power is suppled to a servo mechanism, a resolver connector for connection to the servo mechanism, a fluid inlet connector through which fluid from the fluid source is provided to the servo mechanism and a fluid outlet connector through which fluid can be discharged from the servo mechanism. Each of the power, resolver, fluid inlet and fluid outlet connectors are preferably blind mate quick connectors adapted to be interconnected with corresponding connectors on the servo mechanism upon installation of the servo mechanism in the mounting station. | ||||||
| 260 | Hydraulic isolation valve | US10369400 | 2003-02-19 | US20040159356A1 | 2004-08-19 | Peter Vari |
| Method and apparatus for isolating hydraulic devices in a stacked hydraulic circuit of modular design employing an isolator valve module which enables partial and/or complete isolation of components in a hydraulic system to be isolated for inspection, testing, maintenance or replacement, by selective operation of the isolator valves in the isolator valve module. The isolator valve module may be a sub-plate module supporting other modules or a plurality of stacks of modules or may be a nullsandwichnull type module sandwiched between a sub-plate and another module or between two sandwich-type modules. | ||||||
QQ群二维码
意见反馈
意见反馈