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    • 1. 发明申请
    • FLUID ACTUATED ENGINES AND ENGINE MECHANISMS
    • 流体动力发动机和发动机机构
    • WO1996012109A1
    • 1996-04-25
    • PCT/AU1995000673
    • 1995-10-13
    • ROSE, Nigel, Eric
    • F15B09/08
    • F02M57/025F01L9/02F02M57/026F02M59/105
    • A fluid actuator (11) for use in a fluid injector assembly (10) including a piston (12) arranged for reciprocation in a chamber (14), the piston (12) including a connected plunger (13) operating in an injection chamber (15). A control valve member (34) is actuated to apply fluid to the chamber (14) on opposite sides of the piston (12) to reciprocate the piston (12) and plunger (13). A fluid throttling arrangement is provided to decelerate the piston (12) towards the ends of its stroke. The fluid actuator (11) may also be associated with an engine valve assembly. A fluid actuated engine piston assembly is also described.
    • 一种用于流体注射器组件(10)的流体致动器(11),包括设置用于在腔室(14)中往复运动的活塞(12),所述活塞(12)包括在注射室中操作的连接的柱塞(13) 15)。 控制阀构件(34)被致动以将流体施加到活塞(12)的相对侧上的室(14),以使活塞(12)和活塞(13)往复运动。 提供流体节流装置以使活塞(12)朝向其行程的端部减速。 流体致动器(11)也可以与发动机气门组件相关联。 还描述了一种流体致动的发动机活塞组件。
    • 2. 发明申请
    • HYDRAULIC CYLINDER FEEDBACK CONTROL
    • 液压气缸反馈控制
    • WO1993019300A1
    • 1993-09-30
    • PCT/NZ1993000018
    • 1993-03-23
    • C.W.F. HAMILTON & CO. LIMITEDALEXANDER, Keith, Vivian
    • C.W.F. HAMILTON & CO. LIMITED
    • F15B09/08
    • F15B9/10
    • A hydraulic cylinder (2) having a piston (1) and a linearly extending output shaft (15) controlled by a rotary spool valve (6). The rotary spool valve (6) has a ported outer part (8) rotatable by means of a control lever (7) to pressurize the cylinder (2) and move the piston (1). Linear motion of the piston (1) is converted to rotary movement of a control rod (3) located in a bore of the piston (1) by means of twisted rod section (12). The control rod (3) is coupled to a ported inner part of the rotary spool valve (6) to provide feedback. In an alternative embodiment, the control rod (3) is directly rotated by the control lever (7) to open or close porting between a hole in the piston (1) or output shaft (15) and a spiral groove in the control rod (3) to create a force imbalance across the piston (1), which moves the piston (1) to a new position of equilibrium.
    • 具有由旋转滑阀(6)控制的具有活塞(1)和直线延伸输出轴(15)的液压缸(2)。 旋转滑阀(6)具有通过控制杆(7)可旋转的端口外部部件(8),以对气缸(2)加压并移动活塞(1)。 活塞(1)的直线运动通过扭转杆部分(12)转换成位于活塞(1)的孔中的控制杆(3)的旋转运动。 控制杆(3)联接到旋转滑阀(6)的移动的内部部分以提供反馈。 在替代实施例中,控制杆(3)由控制杆(7)直接旋转以打开或关闭在活塞(1)或输出轴(15)中的孔和控制杆(1)中的螺旋槽 3)在活塞(1)上产生力不平衡,活塞(1)将活塞(1)移动到新的平衡位置。
    • 3. 发明申请
    • IMPROVED FOUR-WAY VALVE
    • 改进的四通阀
    • WO1990011452A1
    • 1990-10-04
    • PCT/US1990001518
    • 1990-03-19
    • TECHCO CORPORATIONPHILLIPS, Edward, H.
    • TECHCO CORPORATION
    • F15B09/08
    • B62D5/083Y10T137/86638Y10T137/86654
    • A four-way open-center rotary control valve (210, 260) is provided which features internally generated hydraulic reaction torque. The hydraulic reaction torque is generated between inner (212, 262) and outer valve members (214, 264) having multiple inlet (220, 222) and return control orifices (232, 234) formed at differing radii. The return control orifices are formed at larger radii than the inlet control orifices - thereby resulting in expanded values of radially disposed area on either side of ridges which partially form the return control orifices. Thus, differential output pressure present in first and second output zones, which are alternately disposed between pairs of the inlet control orifices and pairs of the return control orifices, generates the hydraulic reaction torque via the product of the differential pressure, the expanded values of the radially disposed area and effective radius of the radially disposed area. Generally, the first and second output zones are coupled to either side of a double acting utilization device via controlled orifice flow restrictors (488), also of the present invention. The controlled orifice flow restrictors comprise an oversize orifice (494) which is selectively filled by a spring-loaded contoured valve member (496).
    • 提供了四向开放式中心旋转控制阀(210,260),其具有内部产生的液压反作用力矩。 在具有多个入口(220,222)和形成在不同半径处的返回控制孔(232,234)的内部(212,262)和外部阀构件(214,264)之间产生液压反作用力矩。 返回控制孔形成在比入口控制孔更大的半径处,从而导致部分形成返回控制孔的脊的任​​一侧上的径向设置区域的扩展值。 因此,存在于第一和第二输出区域中的差异输出压力交替地设置在入口控制孔和成对的返回控制孔之间,经由差压的乘积产生液压反作用转矩, 径向设置区域和径向设置区域的有效半径。 通常,也是本发明的第一和第二输出区域通过受控的孔口流量限制器(488)耦合到双作用利用装置的任一侧。 受控孔流量限制器包括由弹簧加载的轮廓阀构件(496)选择性填充的过大孔口(494)。