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    • 1. 发明申请
    • PUMP ASSEMBLY FOR A FUEL INJECTION SYSTEM
    • 燃油喷射系统的泵组件
    • WO2016184797A1
    • 2016-11-24
    • PCT/EP2016/060815
    • 2016-05-13
    • DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À R.L.
    • MCHATTIE, James
    • F02M59/44F04B53/18
    • F02M59/44F04B1/0413F04B53/006F04B53/18
    • A pump assembly for delivering high pressure fuel to a fuel injection system comprises: at least one pumping unit having an associated pumping element; a housing (12) defining a chamber (20) for a lubricating fluid provided through a fluid inlet (54); and a drive shaft (14) rotatably mounted in the housing, the drive shaft being rotatable about its longitudinal axis to actuate, by a cam section (40) thereof, the pumping element of the at least one pumping unit, the drive shaft comprising a radial flange (50) protruding in said chamber (20). At least one collecting channel (58) is provided in the flange (50), the collecting channel (58) having an outer end (60) opening into the chamber (20) at the outer periphery of the flange and an inner end (62) in fluid communication with a central channel (64) in the drive shaft. The central channel (64) extends longitudinally in the drive shaft (14) and has an outlet (66) in the vicinity of a fluid outlet (56) of the chamber, whereby the collecting channel (58) and central channel (64) form a back-leak flow path in said drive shaft (14).
    • 用于将高压燃料输送到燃料喷射系统的泵组件包括:至少一个具有相关联的泵送元件的泵送单元; 限定用于通过流体入口(54)提供的润滑流体的室(20)的壳体(12); 以及可旋转地安装在所述壳体中的驱动轴(14),所述驱动轴可绕其纵向轴线旋转,以通过其凸轮部分(40)致动所述至少一个泵送单元的泵送元件,所述驱动轴包括 在所述腔室(20)中突出的径向凸缘(50)。 至少一个收集通道(58)设置在所述凸缘(50)中,所述收集通道(58)具有在所述凸缘的外周缘处开口到所述室(20)中的外端(60)和内端(62 )与驱动轴中的中心通道(64)流体连通。 中心通道(64)在驱动轴(14)中纵向延伸,并且在腔室的流体出口(56)附近具有出口(66),由此收集通道(58)和中心通道(64)形成 在所述驱动轴(14)中的反泄漏流动路径。
    • 7. 发明申请
    • RECIPROCATING COMPRESSOR
    • 再生压缩机
    • WO2011007912A9
    • 2011-06-03
    • PCT/KR2009003953
    • 2009-07-17
    • LG ELECTRONICS INCPARK KYOUNG-JUNKIM YOUNG-HWAN
    • PARK KYOUNG-JUNKIM YOUNG-HWAN
    • F04B49/12F04B49/16F04B49/24
    • F04B39/0094F04B27/0414F04B49/16F04B53/006
    • Disclosed is a reciprocating compressor, including a latching unit (140) which uses a magnetic force and by which a piston (123) is reciprocated by two times a total eccentric amount obtained by adding an eccentric amount of an eccentric portion to an eccentric amount of an eccentric sleeve (121 ) in a power mode, while the piston (123) is reciprocated by two times the eccentric amount of the eccentric portion in a saving mode, whereby the piston (123) can have an upper dead point same in the power mode and the saving mode of the compressor, resulting in reducing a dead volume between the piston (123) and a discharge valve and increasing a variable ratio of a cooling capacity of the compressor in the saving mode.
    • 公开了一种往复式压缩机,包括使用磁力的闭锁单元(140),活塞(123)通过将偏心量偏心量与偏心量相加而得到的总偏心量往复运动2倍 在动力模式下的偏心套筒(121),同时活塞(123)在节省模式下往复运动偏心部分的偏心量的两倍,由此活塞(123)可以具有与动力相同的上死点 模式和压缩机的保存模式,从而减少活塞(123)和排出阀之间的死体积,并且在节能模式下增加压缩机的冷却能力的可变比率。
    • 10. 发明申请
    • HYDRAULIC OIL WELL PUMP DRIVE SYSTEM
    • 液压油泵驱动系统
    • WO1993018306A2
    • 1993-09-16
    • PCT/CA1993000085
    • 1993-03-01
    • STANLEY, Lloyd
    • F04B47/04
    • F04B53/006F04B9/105F04B47/04F04B53/164F04B2201/0206
    • A hydraulic oil well pump drive system (100) for driving an oil well sucker rod (not shown) includes a master piston (158) positioned within a master cylinder (156) for axial displacement between first and second ends of the master cylinder (156). The master piston (158) has a piston drive rod (164) which extends through one end of the master cylinder (156). The drive rod (164) is connected to a crankpin (147) of an eccentric crank (144). The eccentric crank (144) is driven at a constant rotational speed to reciprocate the master piston (158) within the master cylinder (156) at a sinusoidal rate. A center seal assembly (168) divides the master cylinder (156) into a working chamber (170) and a pressure chamber (172) in opposite ends of the master cylinder (156). Each respective chamber defines a fluid volume which varies with the displacement of the master piston (158). The master piston (158) displacement creates a bi-directional flow of working fluid from the working chamber (170). A wellhead hydraulic assembly (111) is operably connected to the oil well sucker rod and is in fluid communication with the master cylinder working chamber (170) to receive the working fluid flow. The wellhead hydraulic assembly (111) is responsive to the working fluid flow to reciprocate an oil well sucker rod at a rate which relates to the rate of master piston (158) displacement. A gas accumulator (176) is in fluid communication with the master cylinder pressure chamber (172) to bias the master piston (158) toward the master cylinder working end, providing an upward biasing force at the wellhead hydraulic assembly (111).
    • 用于驱动油井抽油杆(未示出)的液压油井泵驱动系统(100)包括位于主缸(156)内的主活塞(158),用于主缸(156)的第一和第二端之间的轴向位移 )。 主活塞(158)具有延伸穿过主缸(156)的一端的活塞驱动杆(164)。 驱动杆(164)连接到偏心曲柄(144)的曲柄销(147)。 偏心曲柄(144)以恒定的转速被驱动以使主缸(156)中的主活塞(158)以正弦速率往复运动。 中心密封组件(168)将主缸(156)在主缸(156)的相对端分为工作室(170)和压力室(172)。 每个相应的室限定随着主活塞(158)的位移而变化的流体体积。 主活塞(158)位移产生了来自工作室(170)的工作流体的双向流动。 井口液压组件(111)可操作地连接到油井抽油杆并且与主缸工作室(170)流体连通以接收工作流体流。 井口液压组件(111)响应于工作流体流以与主活塞(158)位移速率相关的速率往复运动油井抽油杆。 气体储存器(176)与主缸压力室(172)流体连通,以将主活塞(158)朝向主缸工作端偏置,在井口液压组件(111)处提供向上的偏压力。