Thrust Lubrication Strategy For Roller Lifters Of A Common Rail Fuel Pump
    3.
    发明申请
    Thrust Lubrication Strategy For Roller Lifters Of A Common Rail Fuel Pump 有权
    一种共轨燃油泵的升降机推力润滑策略

    公开(公告)号:US20130133621A1

    公开(公告)日:2013-05-30

    申请号:US13306140

    申请日:2011-11-29

    IPC分类号: F02M69/46 F01L1/14

    摘要: A common rail fuel pump includes a cam shaft with at least one cam rotatably supported in a pump housing. A plurality of tappet assemblies are each reciprocatingly movable in the pump housing, and include an axle pin mounted in a tappet, and a roller mounted in contact for rotation about the axle pin. Each end of the roller includes a plurality of non-contiguous planar thrust surfaces separated by lubrication grooves. A lubrication pathway for the roller includes in sequence a lubrication passage that opens to a roller bearing surface, movement along the roller bearing surface into the lubrication grooves, and then between the planar thrust surface of the roller and a counterpart thrust face of the tappet responsive to rotation of the roller on the cam shaft.

    摘要翻译: 共轨燃料泵包括凸轮轴,凸轮轴具有可旋转地支撑在泵壳体中的至少一个凸轮。 多个挺杆组件都可在泵壳体中往复运动,并且包括安装在挺杆中的轴销以及安装在接触件上以绕轴销旋转的滚子。 辊的每个端部包括由润滑槽分隔开的多个不连续的平面推力面。 用于辊的润滑路径依次包括一个向滚子轴承表面开放的润滑通道,沿着滚子轴承表面运动到润滑槽中,然后在辊的平面推力表面和挺杆的对应推力面之间响应 以使辊子在凸轮轴上旋转。

    Valve assembly having a washer
    6.
    发明申请
    Valve assembly having a washer 有权
    阀组件具有垫圈

    公开(公告)号:US20090261286A1

    公开(公告)日:2009-10-22

    申请号:US12081644

    申请日:2008-04-18

    IPC分类号: F16K1/48

    摘要: A valve assembly is disclosed. The valve assembly has a housing having a first recess disposed on an interior surface of the housing and at least one valve-supporting element disposed within the housing. The valve assembly also has a washer disposed within the housing, the washer having a first washer surface and a projection for transferring torque. The first washer surface abuts against a first valve-supporting element surface of the at least one valve-supporting element and the projection is received in the first recess. The valve assembly also has a first fastener disposed within the housing and having a first fastener surface abutting against a second washer surface of the washer.

    摘要翻译: 公开了一种阀组件。 阀组件具有壳体,其具有设置在壳体的内表面上的第一凹部和设置在壳体内的至少一个阀支撑元件。 阀组件还具有设置在壳体内的垫圈,垫圈具有第一垫圈表面和用于传递扭矩的突起。 第一垫圈表面邻接至少一个阀支撑元件的第一阀支撑元件表面,并且突起被容纳在第一凹槽中。 阀组件还具有设置在壳体内的第一紧固件,并且具有抵靠垫圈的第二垫圈表面的第一紧固件表面。

    Leak arrest volume for reducing component separation and fuel injector using same
    7.
    发明授权
    Leak arrest volume for reducing component separation and fuel injector using same 有权
    泄漏停止体积,以减少组件分离和燃油喷射器使用相同

    公开(公告)号:US06880766B2

    公开(公告)日:2005-04-19

    申请号:US10377331

    申请日:2003-02-28

    摘要: Particularly in the fuel injector art, two components may define a high pressure space that is sealed against leakage via a planar sealing land between the two components. If a leak develops in the planar contact area between the two components, it can act to wedge the two components apart, which tends to exacerbate the leakage problem, and so on. Since some leakage between the two components is almost inevitable for a variety of reasons known in the art, a strategy that arrests the leak before it can produce the component separating wedge affect would be beneficial. This can be accomplished by positioning a leak arrest volume, which may be vented, around a majority of the perimeter of the high pressure space. The usage of a leak arrest volume finds particular application in fuel injectors, especially a class of common rail fuel injectors that are maintained at high pressure during prolonged periods between injection events.

    摘要翻译: 特别是在燃料喷射器技术中,两个部件可以限定高压空间,该高压空间通过两个部件之间的平面密封平台而被密封以防止泄漏。 如果在两个部件之间的平面接触区域发生泄漏,则可以将两个部件相互分开,这样可能会加剧泄漏问题,等等。 由于本领域已知的各种原因,两个部件之间的一些泄漏几乎是不可避免的,所以在其产生分离楔形件的部件之前阻止泄漏的策略将是有益的。 这可以通过在高压空间的周边的大部分周围定位可以排出的泄漏停止体积来实现。 泄漏停止体积的使用在燃料喷射器中特别适用,特别是一类在注射事件之间的长时间内保持高压的共轨燃料喷射器。

    Thrust lubrication strategy for roller lifters of a common rail fuel pump
    10.
    发明授权
    Thrust lubrication strategy for roller lifters of a common rail fuel pump 有权
    共轨燃油泵滚子升降机的推力润滑策略

    公开(公告)号:US08967037B2

    公开(公告)日:2015-03-03

    申请号:US13306140

    申请日:2011-11-29

    IPC分类号: F16J1/10 F01B31/10

    摘要: A common rail fuel pump includes a cam shaft with at least one cam rotatably supported in a pump housing. A plurality of tappet assemblies are each reciprocatingly movable in the pump housing, and include an axle pin mounted in a tappet, and a roller mounted in contact for rotation about the axle pin. Each end of the roller includes a plurality of non-contiguous planar thrust surfaces separated by lubrication grooves. A lubrication pathway for the roller includes in sequence a lubrication passage that opens to a roller bearing surface, movement along the roller bearing surface into the lubrication grooves, and then between the planar thrust surface of the roller and a counterpart thrust face of the tappet responsive to rotation of the roller on the cam shaft.

    摘要翻译: 共轨燃料泵包括凸轮轴,凸轮轴具有可旋转地支撑在泵壳体中的至少一个凸轮。 多个挺杆组件都可在泵壳体中往复运动,并且包括安装在挺杆中的轴销以及安装在接触件上以绕轴销旋转的滚子。 辊的每个端部包括由润滑槽分隔开的多个不连续的平面推力面。 用于辊的润滑路径依次包括一个向滚子轴承表面开放的润滑通道,沿着滚子轴承表面运动到润滑槽中,然后在辊的平面推力表面和挺杆的对应推力面之间响应 以使辊子在凸轮轴上旋转。