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    DESMODROMICVALVE SYSTEMS AND METHODS OF OPERATION THEREOF
    2.
    发明公开
    DESMODROMICVALVE SYSTEMS AND METHODS OF OPERATION THEREOF 审中-公开
    控轨道系统和及其使用方法

    公开(公告)号：EP2989302A1

    公开(公告)日：2016-03-02

    申请号：EP14720210.5

    申请日：2014-04-22

    申请人： Camcon Auto Limited

    发明人： STONE, Roger Derrick ,  EVANS, Owen James Warren

    IPC分类号： F01L1/30 ,  F01L3/10

    CPC分类号： F01L1/30 ,  F01L3/10

    摘要： An assembly for coupling a valve stem to an actuating member of an actuator in a desmodromic valve actuation mechanism comprises a spherical bearing having two portions each of which defines a respective bearing surface which is complementary to the bearing surface defined by the other portion, at least one of the surfaces being part spherical, one of the portions being arranged to be coupled to the actuating member and the other portion being arranged to be coupled to the valve stem; and a resilient arrangement which exerts a biasing force on one of the bearing portions and provides resilience in the coupling provided by the assembly between the valve stem and actuating member.

    ELECTROMAGNETIC FLEXURE
    3.
    发明公开
    ELECTROMAGNETIC FLEXURE 有权
    电磁弯曲

    公开(公告)号：EP2756215A1

    公开(公告)日：2014-07-23

    申请号：EP12766136.1

    申请日：2012-09-12

    申请人： Cambridge Enterprise Limited ,  Haldex Brake Products Limited ,  Camcon Technology Ltd

    发明人： CEBON, David ,  ODHAMS, Andrews ,  HOUGHTON, Neil ,  WYGNANSKI, Wladyslaw ,  MILLER, Jonathan ,  PRESCOTT, Robert David ,  HENDERSON, Leon Michael ,  POTTER, Laurence John

    IPC分类号： F16K31/06 ,  F16K31/08

    CPC分类号： F16K31/082 ,  F16K11/044 ,  F16K31/0627 ,  F16K31/0682

    摘要： An electromagnetic valve comprises a yoke (10); a magnet (30a, 30b) having pole pieces (50a, 50b) defining a gap; a flexure assembly (40) having one end attached to the yoke, such that part of the flexure assembly extends into the gap, the flexure assembly having at least one resilient portion formed of a resilient material and at least one magnetisable portion, wherein that part of the flexure assembly that extends into the gap is movable between the pole pieces through an intermediate position towards which it is resiliently biased such that a resilient mechanical force is generated by deflecting the resilient portion from an undetected position; and means (20) for polarising the magnetisable portion of the flexure assembly so that the part of the flexure assembly that is movable between the pole pieces is attracted towards a pole piece by a magnetic force, thereby defining a valve state; wherein the magnetisable portion and the resilient portion of the flexure assembly are configured such that the magnetic force defining the valve state is greater than the resilient mechanical force.

    FLUID INJECTION DEVICE
    4.
    发明公开
    FLUID INJECTION DEVICE 有权
    液体喷射装置

    公开(公告)号：EP2630326A2

    公开(公告)日：2013-08-28

    申请号：EP11774096.9

    申请日：2011-10-19

    申请人： Camcon Oil Limited

    发明人： ANDERSON, Ian ,  WATSON, Peter

    IPC分类号： E21B34/10 ,  E21B37/06

    CPC分类号： E21B34/10 ,  E21B34/101 ,  E21B37/06 ,  E21B43/123

    摘要： A fluid injection device (18) for controlling injection of fluid into an oil-carrying tube in an oil well includes an inlet (20) for receiving the fluid; an outlet (28) for supplying the fluid for injection into the oil-carrying tube; an inlet valve (22) in a fluid path between the inlet and the outlet; an actuator (24) for opening and closing the valve; and a connector (36) for coupling the inlet to a fluid supply tube (32) extending between the device and a source of the fluid above the ground. A method of controlling injection of fluid using such a device is also provided.

    GAS INJECTION CONTROL DEVICES AND METHODS OF OPERATION THEREOF
    5.
    发明公开
    GAS INJECTION CONTROL DEVICES AND METHODS OF OPERATION THEREOF 有权
    注气控制装置和操作方法

    公开(公告)号：EP2288787A2

    公开(公告)日：2011-03-02

    申请号：EP09757818.1

    申请日：2009-06-05

    申请人： Camcon Oil Limited

    发明人： WYGNANSKI, Wladyslaw

    IPC分类号： E21B43/12

    CPC分类号： E21B43/123

    摘要： Gas injection control devices are provided, particularly for deployment in a well-bore to control injection of a gas into a tube or pipe to lift a liquid up the tube, such as crude oil for example. A gas control device (50, 200) is described which comprises a housing (49, 206), and at least two control valve arrangements within the housing. Each arrangement has an inlet (76) for receiving gas from a pressurized supply, an outlet (80) for supplying pressurized gas for injection into the tube, an inlet valve (62) in a fluid path between the inlet and outlet, and an actuator (72) associated with the inlet valve. Each actuator is independently controllable to switch the respective inlet valve between its open and closed configurations. This allows the gas injection to be switched on and off, and facilitates control of the injection gas flow rate.

    ELECTROMAGNETIC VALVE ACTUATOR
    6.
    发明公开
    ELECTROMAGNETIC VALVE ACTUATOR 有权
    电磁阀驱动器

    公开(公告)号：EP1618292A1

    公开(公告)日：2006-01-25

    申请号：EP04729464.0

    申请日：2004-04-26

    申请人： Camcon Ltd.

    发明人： WYGNANSKI, Wladyslaw ,  FORD, Graham, Paul

    IPC分类号： F01L9/04 ,  F01L1/30 ,  F01L13/00

    CPC分类号： F01L1/185 ,  F01L1/30 ,  F01L9/04 ,  F01L2009/0411 ,  F01L2101/00

    摘要： An electromagnetic actuator is described in which a rotor (R,157) is rotatable in a stator (90, 266) which is magnetisable by causing an electric current to flow through at least one winding (130) associated with the stator. The rotor (R, 157) has at least two stable rest positions, each defined by a combination of spring and magnetic forces acting on the rotor. Spring means (86, 226) stores energy during part of the movement of the rotor and provides kinetic energy for accelerating the rotor during subsequent movement thereof. A magnetic torque is exerted on the rotor when a current flows in said at least one winding (130) which is sufficient to overcome magnetic force holding the rotor in a rest position. The rotor is connected to a thrust member (72, 262) by a mechanical linkage (40, 234) by which the rotational movement of the rotor is converted into substantially linear movement. The linkage (40) has a mechanical advantage which varies in a predetermined manner during the rotation of the rotor. In one embodiment the rotor can rotate through 360° and rotate continuously. In another embodiment the rotor (R, 157) has only two stable rest positions and a first spring (226) stores energy during movement of the rotor towards one rest position and a second spring (236) stores energy as the rotor rotates towards its other rest position. The mechanical advantage profile is such that near one rest position angular movement of the rotor results in substantially no linear movement of the thrust member (70, 262). This is achieved by a lost motion connection between rotor and thrust member in which the lost motion is taken up during part of the rotation of the rotor. The actuator can be used to open and close a valve (70, 260) of an internal combustion engine.

    PIVOTING ELECTROMAGNETIC ACTUATOR AND INTEGRATED ACTUATOR AND FLUID FLOW CONTROL VALVE
    7.
    发明公开
    PIVOTING ELECTROMAGNETIC ACTUATOR AND INTEGRATED ACTUATOR AND FLUID FLOW CONTROL VALVE 有权
    回转系统，集成驱动器和流量控制阀

    公开(公告)号：EP1509716A1

    公开(公告)日：2005-03-02

    申请号：EP03735806.6

    申请日：2003-05-23

    申请人： Camcon Ltd.

    发明人： WYGNANSKI, Wladyslaw

    IPC分类号： F16K31/06 ,  F16K31/08

    CPC分类号： H01F7/1615 ,  F16K31/0682 ,  F16K31/082 ,  H01F7/081 ,  H01H51/2209

    摘要： A fluid flow control valve in which an armature (2) is mounted for pivoting in a fluid tight chamber, and comprises the fluid flow-controlling device. It can adopt either of two home positions in contact with two magnetic poles (A, D, B, C) and is retained by magnetic flux from a permanent magnet (1). The armature pivots from one home position to the other by temporarily altering the magnetic flux linking the armature and the poles (A, B, C, D). Fluid can flow into and out of the chamber via a first passage (13). A second passage (14) extends through one of the poles (D) to an opening in the pole face which is covered by the armature when the latter occupies one home position but is uncovered when the armature occupies its other home position. A third fluid passage (15) extends through and leads to a second opening in another pole (C), which is covered when the armature occupies its said other home position. Part of the force of attraction is converted into potential energy and stored in springs (5, 6) while the armature remains in either home position to exert an accelerating force on the armature towards its other home position when the magnetic flux is altered.