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1. 发明申请

WO2017034743A1 HYDRAULIC DRIVE SYSTEM FOR CRYOGENIC PUMP 审中-公开
标题翻译：液压泵液压驱动系统
公开(公告)号：WO2017034743A1
公开(公告)日：2017-03-02
申请号：PCT/US2016/044268
申请日：2016-07-27
申请人： CATERPILLAR INC.
发明人： BRASCHE, Adrienne M. , BROWN, Cory A. , BEAN, Sunil J.
IPC分类号： F02D19/06 , F04B37/08
CPC分类号： F04B15/08 , F01L9/02 , F04B7/04 , F04B9/1178 , F04B19/22 , F04B37/08 , F04B37/085 , F04B49/22 , F04B49/225 , F04B53/10 , F04B53/14 , F04B53/146 , F04B53/148 , F04B2015/081 , F17C2227/0135 , F17C2227/0142 , F17C2227/0178 , Y10S417/901
摘要： A drive system (114) for a cryogenic pump (110) is provided including a spool housing (150) having a plurality of valves (240) disposed therein about a pump axis (118) and a tappet housing (152) including a plurality of tappet bores (200), each tappet bore in communication with a respective one of the plurality of valves (240). A collection cavity (220) collects hydraulic fluid from the tappet bores. A pump flange (119) includes a fluid inlet (302) and a fluid outlet (304). An inlet manifold (305) directs hydraulic fluid received through the fluid inlet (302) to each of the plurality of valves (240). An outlet manifold (322) directs hydraulic fluid from each of the valves (240) and the collection cavity (220) to the fluid outlet (304).
摘要翻译：提供了一种用于低温泵（110）的驱动系统（114），其包括具有围绕泵轴线（118）设置在其中的多个阀（240）的卷轴壳体（150）和包括多个挺杆孔（200），每个挺杆孔与多个阀门（240）中的相应一个连通。收集腔（220）从挺杆孔收集液压流体。泵凸缘（119）包括流体入口（302）和流体出口（304）。入口歧管（305）将通过流体入口（302）接收的液压流体引导到多个阀（240）中的每一个。出口歧管（322）将液压流体从每个阀（240）和收集腔（220）引导到流体出口（304）。

2. 发明申请

WO2017023643A1 CRYOGENIC PUMP FOR LIQUEFIED NATURAL GAS 审中-公开
标题翻译：用于液化天然气的低温泵
公开(公告)号：WO2017023643A1
公开(公告)日：2017-02-09
申请号：PCT/US2016/044244
申请日：2016-07-27
申请人： CATERPILLAR INC.
发明人： BROWN, Cory A. , BRASCHE, Adrienne M. , BALDWIN, Daniel R. , AYANJI, Sudhindra K. , STEFFEN, Joshua W.
IPC分类号： F02M21/02 , F02M37/04
CPC分类号： F04B15/08 , F04B23/021 , F04B23/023 , F04B37/08 , F04B2015/081 , F17C2227/0142 , F17C2227/0178 , F17C2265/066
摘要： A cryogenic pump (110) for pumping liquefied natural gas (lng) from a cryogenic tank (104) storing lng includes a drive assembly (114) and a pump assembly (112) disposed along a pump axis (118). The drive assembly (114) includes a spool housing (150) having a plurality of spool valves (180) arranged around the pump axis (118), a tappet housing (152) having a plurality of tappet bores (200) with slidable tappets (156) around the pump axis (118), and spring housing (154) including a plurality of movably disposed pushrod (158) urged upward by a plurality of associated pushrod springs (230). Hydraulic fluid received by a hydraulic fluid inlet (170) in the drive assembly (114) is directed by the spool valves (180) to the tappet bores (200) to move the tappets (156) downward against the pushrods (158). To collect the hydraulic fluid, the lowermost spring housing (154) also includes a collection cavity (220) formed therein that can return the hydraulic fluid to a hydraulic fluid outlet (172).
摘要翻译：用于从存储lng的低温罐（104）泵送液化天然气（lng）的低温泵（110）包括沿泵轴线（118）设置的驱动组件（114）和泵组件（112）。驱动组件（114）包括具有围绕泵轴线（118）布置的多个滑阀（180）的卷轴壳体（150），具有多个具有滑动挺杆的挺杆孔（200）的挺杆壳体（152）（118）的弹簧壳体（154），以及包括由多个相关联的推杆弹簧（230）向上推动的多个可移动设置的推杆（158）的弹簧壳体（154）。由驱动组件（114）中的液压流体入口（170）接收的液压流体由滑阀（180）引导到挺杆孔（200），以将挺杆（156）向下抵靠推杆（158）移动。为了收集液压流体，最下面的弹簧壳体（154）还包括形成在其中的收集腔（220），其能够将液压流体返回到液压流体出口（172）。

3. 发明申请

WO2017100047A1 INJECTOR SEALS FOR DUAL FUEL APPLICATION 审中-公开
标题翻译：双燃料应用的注射器密封
公开(公告)号：WO2017100047A1
公开(公告)日：2017-06-15
申请号：PCT/US2016/064099
申请日：2016-11-30
申请人： CATERPILLAR INC.
发明人： BRASCHE, Adrienne M. , BEAN, Sunil J.
IPC分类号： F02M43/04 , F02M61/18
CPC分类号： F02M43/04 , F02D19/0694 , F02M37/0064 , F02M47/027 , F02M61/10 , F02M2200/16 , Y02T10/36
摘要： A dual fuel injector (10) configuration is provided that includes a plurality of seals around a fuel check needle to prevent transfer of a gaseous fuel to portions of the injector (10) intended for handling of liquid fuel, prevent transfer of liquid fuel to portions of the injector (10) intended for handling of gaseous fuel, or a combination thereof. At least one seal can correspond to a pressure-assisted sealing member (100) suitable for sealing against transfer of liquid fuel. At least one additional seal can correspond to a pressure-assisted sealing member (100) suitable for sealing against transfer of gaseous fuel. The sealing members can be separated by a backing member that provides structural support for one or both of the sealing members. The volume occupied by the backing member can also include a conduit to an external surface of the injector (10).
摘要翻译：提供了一种双燃料喷射器（10）构造，其包括在燃料止回针周围的多个密封件，以防止气体燃料向用于处理液体燃料的喷射器（10）的部分，防止液体燃料转移到用于处理气体燃料的喷射器（10）的部分，或其组合。至少一个密封件可以对应于适用于密封以防止液体燃料传递的压力辅助密封构件（100）。至少一个另外的密封件可以对应于适合于密封以防止气体燃料转移的压力辅助密封构件（100）。密封构件可以由背衬构件分开，该背衬构件为密封构件中的一个或两个提供结构支撑。由背衬构件占据的体积还可以包括通向喷射器（10）的外表面的导管。

4. 发明申请

WO2017003569A1 HYDRAULIC DRIVE MULTI-ELEMENT CRYOGENIC PUMP 审中-公开
标题翻译：液压驱动多元件低温泵
公开(公告)号：WO2017003569A1
公开(公告)日：2017-01-05
申请号：PCT/US2016/032398
申请日：2016-05-13
申请人： CATERPILLAR INC.
发明人： BROWN, Cory A. , BRASCHE, Adrienne M. , BEAN, Sunil J. , HAZARI, Shivangini S. , MAHMOOD, Sana , ARYA, Nikhil M. , STEFFEN, Joshua W. , BALDWIN, Daniel R. , COLDREN, Dana R. , CAMPION, Robert M. , STOCKNER, Alan R.
IPC分类号： F02M37/08 , F02M21/02 , F02D19/06
CPC分类号： F04B23/02 , F04B9/1176 , F04B23/023 , F04B23/06 , F04B37/08 , F04B49/065 , F04B2015/081 , F17C2227/0142
摘要： A cryogenic fluid pump (118) includes a plurality of pumping elements (400), each of the plurality of pumping elements (400) having an actuator portion (302) that is associated with and configured to selectively activate one end of a pushrod (304) in response to a command by an electronic controller (120), an activation portion (308) associated with an opposite end of the pushrod (304), and a pumping portion (310) associated with the activation portion (308). For each of the plurality of pumping elements (400), the pumping portion (310) is activated for pumping a fluid by the activation portion (308), which activation portion (308) is activated by the actuator portion (302). The electronic controller (120) is configured to selectively activate each of the plurality of pumping elements (400) such that a flow of fluid from the cryogenic fluid pump (118) results from continuous activations of the plurality of pumping elements (400) at selected dwell times between activations of successive pumping elements (400).
摘要翻译：低温流体泵（118）包括多个泵送元件（400），所述多个泵送元件（400）中的每一个具有致动器部分（302），致动器部分（302）与选择性地激活推杆（304 ）响应于电子控制器（120）的命令，与推杆（304）的相对端相关联的激活部分（308）以及与激活部分（308）相关联的泵送部分（310）。对于多个泵送元件（400）中的每一个，泵送部分（310）被激活以通过致动部分（308）泵送流体，该致动部分（308）由致动器部分（302）激活。电子控制器（120）被配置为选择性地激活多个泵送元件（400）中的每一个，使得来自低温流体泵（118）的流体流由所选择的多个泵送元件（400）的连续激活导致连续泵送元件激活之间的停留时间（400）。

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