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51. 发明申请

WO2017079792A1 A PISTON AND CYLINDER SYSTEM 审中-公开
标题翻译：活塞和气缸系统
公开(公告)号：WO2017079792A1
公开(公告)日：2017-05-18
申请号：PCT/AU2016/051068
申请日：2016-11-08
申请人： ELITE ATTACHMENTS AUSTRALIA PTY LTD
发明人： HUGHES, Noel , LAFORGIA, Leonardo
IPC分类号： F15B15/14 , F15B20/00 , E02F3/36
CPC分类号： E02F3/36 , F15B15/04 , F15B15/1466 , F15B15/1476
摘要： A piston and cylinder system (10), the cylinder (12) including a closed end (14) and an open end (16). The piston (18) is movable in an axial direction within the cylinder (12) between a fully extended position and a fully retracted position. The piston (18) and cylinder (12) define first and second chambers (20), (22) within the cylinder (12), (20), with the first chamber (20) defined between a cylinder closed end wall (24) at the closed end (14) of the cylinder (12), a cylinder sidewall (26) and the piston (18). The second chamber (22) is defined between a cylinder open end wall (30) at the open end (16) of the cylinder (12), the cylinder side wall (26) and the piston (18). A first fluid supply port (34) is provided for supplying fluid to the first chamber (20) to facilitate movement of the piston (18) towards the fully extended position; and a second supply port (36) is provided for supplying fluid to the second chamber (22) to facilitate movement of the piston (18) towards the fully retracted position. A biasing means (38) is provided at least partially within the cylinder (12) and biases the piston (18) towards the fully extended position.
摘要翻译：活塞和缸体系统（10），缸体（12）包括封闭端（14）和开口端（16）。活塞（18）可在气缸（12）内的轴向方向上在完全伸出位置和完全缩回位置之间移动。活塞（18）和缸体（12）在缸体（12），（20）内限定第一和第二腔室（20），（22），第一腔室（20）限定在缸体闭合端壁（24）在气缸（12）的封闭端（14）处具有气缸侧壁（26）和活塞（18）。第二腔室（22）限定在汽缸（12）的开口端（16）处的汽缸开口端壁（30），汽缸侧壁（26）和活塞（18）之间。提供第一流体供应端口（34）用于将流体供应到第一腔室（20）以促进活塞（18）朝向完全伸出位置的运动; 并且提供第二供应端口（36）用于将流体供应到第二腔室（22）以促进活塞（18）朝向完全缩回位置的运动。偏置装置（38）至少部分地设置在汽缸（12）内并且将活塞（18）朝向完全伸出位置偏置。

52. 发明申请

WO2015074656A1 KOLBEN-ZYLINDEREINHEIT DIE EINE KUNSTSTOFFFEDER ENTHÄLT 审中-公开
标题翻译：活塞缸单元到塑料弹簧CONTAINS
公开(公告)号：WO2015074656A1
公开(公告)日：2015-05-28
申请号：PCT/DE2014/200621
申请日：2014-11-07
申请人： SCHAEFFLER TECHNOLOGIES AG & CO. KG
发明人： RAMMHOFER, Thomas
IPC分类号： F15B7/08 , B60T11/16 , F15B15/14 , F16F1/366
CPC分类号： F15B7/08 , B60T11/16 , F15B15/1476 , F16D25/088 , F16D2025/081 , F16F1/3665
摘要： Die Erfindung betrifft eine Kolben-Zylindereinheit (1) mit einem Zylinder (2) mit einem Zylinderraum (3) und mit einem in dem Zylinderraum (3) angeordneten axial verschieblichen Kolben (4), wobei innerhalb des Zylinderraums (3) eine Feder (7) angeordnet ist, welche sich an einem axialen Endbereich des Zylinders und einem axialen Endbereich des Kolbens in axialer Richtung abstützt und den Kolben (4) beaufschlagt, wobei die Feder (7) aus einem nichtmagnetischen und nicht elektrisch leitfähigem faserverstärktem KunststoffMaterial besteht.
摘要翻译：本发明涉及一种活塞 - 缸单元（1），其包含（2），其具有气缸室的气缸（3），并用一个在气缸室（3）布置成轴向移动的活塞（4），其中，所述缸体空间（3）内的弹簧（7 布置），其被支撑在所述缸体的轴向端部并且在轴向方向上的活塞的轴向端部和所述活塞（4）被施加，其中，所述弹簧（7）由非磁性和非导电性纤维补强的塑性材料的。

53. 发明申请

WO2012059759A1 VALVE ACTUATOR 审中-公开
标题翻译：阀门执行器
公开(公告)号：WO2012059759A1
公开(公告)日：2012-05-10
申请号：PCT/GB2011/052134
申请日：2011-11-02
申请人： AKER SOLUTIONS SINGAPORE PTE LTD , WEBSTER, David Wade
发明人： WEBSTER, David Wade
IPC分类号： F16K31/163 , F16K31/52 , F16K31/54
CPC分类号： F16K31/1221 , F15B15/1476 , F16K31/163 , F16K31/523 , F16K31/54
摘要： The valve actuator (10) has a movable control element (12) which is typically connected to the valve to be opened/closed and a propulsion device (16) which may be a hydraulically operated piston (16) for moving the movable control element. A resilient element (22) which may be in the form of a spring arrangement has a stroke extending from a first relatively unloaded position to a second relatively loaded position and a transmission mechanism (18) is also provided, where the resilient element is loaded under the action of the propulsion device via the transmission mechanism and is configured to urge the moveable portion of the propulsion device towards the first position via the transmission mechanism when loaded. The transmission mechanism provides a gearing ratio reduction between the moveable portion of the propulsion device and the resilient element.
摘要翻译：阀致动器（10）具有通常连接到要打开/关闭的阀的可移动控制元件（12）和可以是用于移动可移动控制元件的液压操作活塞（16）的推进装置（16）。可以是弹簧装置形式的弹性元件（22）具有从第一相对卸载位置延伸到第二相对加载位置的行程，并且还设置传动机构（18），其中弹性元件被装载在所述推进装置经由所述传动机构的作用被构造成当加载时经由所述传动机构将所述推进装置的可移动部分推向所述第一位置。传动机构提供推进装置的可移动部分和弹性元件之间的传动比减小。

54. 发明申请

WO2002081932A2 DISCONNECTED PISTON FOR A VALVE ACTUATOR 审中-公开
标题翻译：阀门执行器的断开活塞
公开(公告)号：WO2002081932A2
公开(公告)日：2002-10-17
申请号：PCT/US2002/008851
申请日：2002-03-22
申请人： COOPER CAMERON CORPORATION
发明人： HADEMENOS, Jim, P. , HARKINS, Randall, D. , KELLY, Thomas, P.
IPC分类号： F15B15/14
CPC分类号： F15B21/006 , F15B15/1476 , F16K31/1221
摘要： A valve and valve actuator utilizing a disconnected piston design that separates under conditions of excessive actuator internal pressure to prevent overloading and damaging the threaded connection between the valve stem and actuator piston is disclosed. The hydraulically actuated valve actuator comprises a spring housing including a bonnet for coupling the spring housing to a valve. The spring housing includes an upper head and a packing gland that are sealingly attached to the spring housing to form an interior pressure chamber. The interior pressure chamber has a pressure responsive actuator piston disposed therein with a coil spring designed to move the actuator piston form a normally open to a fail closed position. The pressure responsive actuator piston includes a piston and a spring retainer nut that are separable after closing of the valve to prevent ambient pressure acting within the pressure chamber on the pressure responsive actuator piston from overloading the valve stem.
摘要翻译：公开了一种阀和阀致动器，其利用断开的活塞设计，在过大的致动器内部压力的条件下分离，以防止过载并损坏阀杆和致动器活塞之间的螺纹连接。液压致动阀致动器包括弹簧壳体，弹簧壳体包括用于将弹簧壳体联接到阀门的阀盖。弹簧壳体包括密封地附接到弹簧壳体以形成内部压力室的上部头部和密封压盖。内部压力室具有设置在其中的压力响应致动器活塞，其中设有螺旋弹簧，该螺旋弹簧设计成将致动器活塞从常开状态移动到故障关闭位置。压力响应致动器活塞包括活塞和弹簧保持螺母，该活塞和弹簧保持螺母在阀关闭之后可分离，以防止在压力响应致动器活塞上的压力室内作用的环境压力使阀杆过载。

55. 发明申请

WO01081027A1 METHOD AND DRIVE SYSTEM FOR THE CONTROL/REGULATION OF LINEAR PRESSURE/CAST MOVEMENT 审中-公开
标题翻译：方法和驱动系统用于控制/调节LINEAR PRESS /倾倒动作
公开(公告)号：WO01081027A1
公开(公告)日：2001-11-01
申请号：PCT/CH2001/000249
申请日：2001-04-19
IPC分类号： B22D17/32 , B29C45/82 , F15B1/02 , F15B11/044 , F15B15/14 , B30B15/20
CPC分类号： B29C45/82 , B22D17/32 , B29C2045/824 , B29C2945/76013 , B29C2945/76083 , B29C2945/76113 , B29C2945/762 , B29C2945/76381 , B29C2945/76498 , B29C2945/76598 , B29C2945/76678 , B29C2945/76785 , B29C2945/76859 , B29C2945/76862 , B30B15/163 , F15B1/02 , F15B11/044 , F15B15/1476 , F15B2211/20538 , F15B2211/212 , F15B2211/30525 , F15B2211/3144 , F15B2211/40515 , F15B2211/455 , F15B2211/50536 , F15B2211/5151 , F15B2211/6313 , F15B2211/7052 , F15B2211/76
摘要： The invention relates to a method for controlled driving of the cast axle (8) of pressure die casting machines, comprising a drive piston (15), wherein the forward and return motion of the piston (15) is carried out in a controlled manner. The invention is characterized in that the oil flow or oil pressure on the piston rod side is controlled/regulated by a pump (30) and additionally by a throttle valve (103) working in parallel at least during the filling phase, especially during the fast forward motion part.
摘要翻译：本发明涉及一种用于铸造轴的受控驱动器的方法（8），其具有驱动活塞（15），其中两个快进当活塞的返回运动（15）被向下调节，并且其特征在于，油的流动的活塞杆侧或压铸机控制。油压，在填充阶段的区域中的至少，特别是快速向前运动的一部分，通过泵（30），并且还具有一个并行操作节流阀（103）/被限制。

56. 发明申请

US20190219075A1 Cylinder with Check Valve 审中-公开
公开(公告)号：US20190219075A1
公开(公告)日：2019-07-18
申请号：US16242454
申请日：2019-01-08
申请人： Waratah Om Oy
发明人： ARTO ALFTHAN , TIMO NEUVONEN , JONI TURUNEN , SAMULI JORMANAINEN , ESA Jääskeläinen
IPC分类号： F15B15/14 , A01G23/083 , G01B3/12
CPC分类号： F15B15/149 , A01G23/083 , F15B15/1457 , F15B15/1476 , F15B2211/47 , F15B2211/7051 , G01B3/12
摘要： A harvester head having at least one hydraulic actuator with a cylinder and a piston. The hydraulic actuator having at least a cylinder chamber and a piston rod chamber, both chambers being connected to a hydraulic circuit. The piston separating the cylinder chamber and the piston rod chamber, a cavity provided in the piston, hydraulically connecting the cylinder chamber with the piston rod chamber and a check valve in connection with the cavity that allows hydraulic medium flow in an opening direction of the check valve.

57. 发明申请

US20180172035A1 CENTRE SEEKING ACTUATOR 审中-公开
公开(公告)号：US20180172035A1
公开(公告)日：2018-06-21
申请号：US15834800
申请日：2017-12-07
申请人： Safran Landing Systems UK LTD
发明人： Yann Simonneaux
IPC分类号： F15B15/14 , B64C25/58
CPC分类号： F15B15/1461 , B64C25/22 , B64C25/58 , B64C25/60 , B64C2025/345 , F15B15/1438 , F15B15/1476 , F16F9/06 , F16F9/36
摘要： A centre seeking actuator having an outer cylinder, a slave cylinder slidably disposed within the outer cylinder, and a rod assembly having a piston slidably disposed within the slave cylinder and a rod extending from the piston to a point outside the outer cylinder. One or more first dynamic seals are arranged to act on a side wall of the rod to inhibit working fluid leaking from the outer cylinder, and one or more second dynamic seals are arranged to act on a sidewall of the slave cylinder to inhibit working fluid leaking from the outer cylinder.

58. 发明授权

US09874064B2 Shape memory alloy powered hydraulic accumulator 有权
公开(公告)号：US09874064B2
公开(公告)日：2018-01-23
申请号：US14836735
申请日：2015-08-26
申请人： University of Houston
发明人： Chris Kocurek , Gangbing Song , David McWhorter
IPC分类号： F01B29/10 , E21B33/035 , F15B15/08 , F15B15/14 , E21B33/064 , F15B1/033
CPC分类号： E21B33/0355 , E21B33/064 , F15B1/033 , F15B15/08 , F15B15/088 , F15B15/1476
摘要： A system, in certain embodiments, includes an accumulator. The accumulator includes a first cylinder configured to receive a fluid within an internal volume of the first cylinder. The accumulator also includes a piston configured to move axially within the first cylinder. Axial movement of the piston within the first cylinder adjusts the internal volume of the first cylinder. The accumulator further includes a plurality of shape memory alloy wires configured to cause the axial movement of the piston within the first cylinder.

59. 发明申请

US20170314585A1 FLUID-OPERATED APPARATUS, METHOD, AND CIRCUIT 审中-公开
公开(公告)号：US20170314585A1
公开(公告)日：2017-11-02
申请号：US15496738
申请日：2017-04-25
申请人： Neil Gordon Stewart
发明人： Neil Gordon Stewart
IPC分类号： F15B21/08 , F15B15/14 , F15B11/10
CPC分类号： F15B21/08 , A61C1/0038 , A61C3/02 , F15B11/10 , F15B15/1476 , F15B15/149 , F15B2211/6654 , F15B2211/7053
摘要： An apparatus for seamlessly activating an on-demand function related to a fluid-driven instrument connects to an output of control valve regulating system pressure during normal operation of the instrument. The apparatus includes a fluid-operated bistable circuit that is switchable from a standby mode to an actuating mode by a brief drop in system pressure. In the actuating mode the circuit acts on a switch or valve to activate the function. Turning off system pressure to a longer time returns the circuit to its standby mode. The circuit includes a two-port biased actuator responsive to pressure imbalance between its ports, which are separately pressurizable through, respectively, an actuator-controlled valve and a flow control module.

60. 发明申请

US20170138377A1 FAILSAFE SYSTEM AND METHOD FOR REDUCING LOAD IN A HYDRAULIC CYLINDER 有权
公开(公告)号：US20170138377A1
公开(公告)日：2017-05-18
申请号：US14941259
申请日：2015-11-13
申请人： Hydril USA Distribution, LLC
发明人： Joseph Edison Huseman , Eric Dale Larson , Jamie Clay Gamble , Wayne Harvey , Alexander McAuley , Juan Pedro Trevino
IPC分类号： F15B15/14
CPC分类号： F15B15/1471 , E21B17/07 , E21B19/004 , F15B15/02 , F15B15/1476 , F15B15/226 , F15B20/007 , F15B2211/8752
摘要： A mechanism to reduce load of a hydraulic cylinder having a body, a stem movable within the body, and a piston rod connected to the stem. The mechanism includes a mechanism body attached to the body and defining a recess, and a retainer attached to the mechanism adjacent the opening of the recess so that the retainer substantially fills the opening of the recess, and having an aperture that receives an end of the piston rod. The mechanism further includes a cap attached to the piston rod of the hydraulic cylinder within the recess, the cap having a diameter greater than the diameter of the aperture in the retainer, and a spring connected to the cap at a first end and to the retainer at a second end so that as the piston rod moves relative to the failsafe mechanism body, to reduce load transfer between the piston rod and the cylinder body.

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