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公开(公告)号：WO2016122828A1
公开(公告)日：2016-08-04
申请号：PCT/US2015/068271
申请日：2015-12-31
Applicant: CATERPILLAR INC.
Inventor： BEAN, Sunil Jefferey , STEFFEN, Joshua W. , COLDREN, Dana R. , CAMPION, Robert M.
CPC classification number: F04B39/10 , F02M43/02 , F04B1/143 , F04B1/16 , F04B15/08 , F04B53/14 , F04B53/16 , F04B2015/081 , Y02T10/32
Abstract: A barrel assembly (310) for a pumping mechanism (300) includes a first end (314), a second end (312) opposite the first end (314), and a plunger bore (320) configured to receive a plunger (330) for sliding within the plunger bore (320). The barrel assembly (310) also includes at least one inlet passage (342) including at least one inlet extending through the first end (314) and fluidly connected to the plunger bore (320) to communicate fluid from the at least one inlet passage (342) to the plunger bore (320). The barrel assembly (310) further includes an outlet passage (350) fluidly connected to the plunger bore (320) and configured to receive fluid from the plunger bore (320), the plunger bore (320) and the outlet passage (350) forming separate openings in the second end of the barrel assembly (310).
Abstract translation: 用于泵送机构（300）的桶组件（310）包括第一端（314），与第一端（314）相对的第二端（312）和构造成接收柱塞（330）的柱塞孔（320） 用于在柱塞孔（320）内滑动。 桶组件（310）还包括至少一个入口通道（342），其包括延伸穿过第一端（314）并且流体连接到柱塞孔（320）的至少一个入口，以将来自至少一个入口通道 342）连接到柱塞孔（320）。 筒体组件（310）还包括流体连接到柱塞孔（320）并被构造成从柱塞孔（320），柱塞孔（320）和出口通道（350）中接收流体的出口通道（350） 在筒组件（310）的第二端部分开开口。
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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
Applicant: CATERPILLAR INC.
Inventor： BROWN, Cory A. , BRASCHE, Adrienne M. , BALDWIN, Daniel R. , AYANJI, Sudhindra K. , STEFFEN, Joshua W.
CPC classification number: F04B15/08 , F04B23/021 , F04B23/023 , F04B37/08 , F04B2015/081 , F17C2227/0142 , F17C2227/0178 , F17C2265/066
Abstract: 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).
Abstract translation: 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）。
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公开(公告)号：WO2017019255A1
公开(公告)日：2017-02-02
申请号：PCT/US2016/040731
申请日：2016-07-01
Applicant: CATERPILLAR INC.
Inventor： HAZARI, Shivangini S. , BROWN, Cory A. , STEFFEN, Joshua W. , BEAN, Sunil J.
CPC classification number: F04B15/08 , F04B1/122 , F04B1/128 , F04B37/08 , F04B53/14 , F04B53/166 , F04B2015/081 , F17C7/02 , F17C2201/056 , F17C2203/0383 , F17C2221/033 , F17C2223/0161 , F17C2227/0142 , F17C2227/0178 , F17C2265/066 , F17C2270/0173
Abstract: A manifold (64) is disclosed for use with a cryogenic pump (14). The manifold may have a generally cylindrical body having a top end and a bottom end. The manifold may also have a plurality of bores (68) arranged in a ring around a central axis (32) of the generally cylindrical body. Each of the plurality of bores may be configured to communicate with a different plunger barrel of the cryogenic pump. The manifold may additionally have at least one inlet orifice (86) in fluid communication with each of the plurality of bores.
Abstract translation: 公开了与低温泵（14）一起使用的歧管（64）。 歧管可以具有大致圆柱形的本体，其具有顶端和底端。 歧管还可以具有围绕大致圆柱体的中心轴线（32）布置成环的多个孔（68）。 多个孔中的每一个可构造成与低温泵的不同柱塞筒连通。 歧管还可以具有与多个孔中的每一个流体连通的至少一个入口孔口（86）。
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公开(公告)号：WO2016153796A1
公开(公告)日：2016-09-29
申请号：PCT/US2016/021680
申请日：2016-03-10
Applicant: CATERPILLAR INC.
Inventor： COLDREN, Dana R. , STEFFEN, Joshua W.
CPC classification number: F04B17/03 , F04B15/08 , F04B23/021 , F04B23/106 , F04B2015/081 , F04D7/02 , F04D13/06 , F04D13/12
Abstract: A pump system (12) is disclosed for use with a fuel system (10) of an engine (12). The pump system may have a first pump (40) with a first end (52), a second end (54), a reservoir (82) located at the second end, and at least one pump mechanism (76) configured to receive fluid from the reservoir. The pump system may also have a second pump (42) mounted to the first pump at the second end and having at least one pump mechanism (90) configured to discharge fluid into the reservoir of the first pump. The pump system may further have a mechanical input (48) operatively connected to the at least one pump mechanism of each of the first and second pumps.
Abstract translation: 公开了与发动机（12）的燃料系统（10）一起使用的泵系统（12）。 泵系统可以具有第一泵（40），其具有第一端（52），第二端（54），位于第二端的储存器（82）和至少一个泵机构（76），其构造成接收流体 从水库。 泵系统还可以具有在第二端处安装到第一泵的第二泵（42），并且具有构造成将流体排放到第一泵的储存器中的至少一个泵机构（90）。 泵系统还可以具有可操作地连接到第一和第二泵中的每一个的至少一个泵机构的机械输入端（48）。
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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
Applicant: CATERPILLAR INC.
Inventor： 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.
CPC classification number: F04B23/02 , F04B9/1176 , F04B23/023 , F04B23/06 , F04B37/08 , F04B49/065 , F04B2015/081 , F17C2227/0142
Abstract: 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).
Abstract translation: 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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公开(公告)号：WO2016114894A1
公开(公告)日：2016-07-21
申请号：PCT/US2015/066162
申请日：2015-12-16
Applicant: CATERPILLAR INC.
Inventor： NELSON, Bryan E. , BALDWIN, Daniel R. , STOCKNER, Alan R. , CAMPION, Robert M. , BROWN, Cory A. , STEFFEN, Joshua W. , COLDREN, Dana R. , MAHMOOD, Sana
CPC classification number: F04B27/1054 , F04B27/1063 , F04B37/08 , F16C19/06 , F16C19/30 , F16C19/547 , F16C23/086 , F16C2360/00
Abstract: A bearing arrangement 24 for a wobble plate piston pump 10 includes first, second, third, and fourth bearing assemblies 90, 92, 94, 96. The first and second bearing assemblies 90, 92 support the drive shaft portion 70 for rotation within the housing 16, 18 about the central longitudinal axis 74, while the third and fourth bearing assemblies 94, 96 support the load plate 28 for rotation relative to the offset shaft portion 72 of the shaft 26. The second bearing assembly 92 is distally disposed from the first 90, the third 94 disposed distally to second 92, and the fourth 96 disposed distally to third 94. The fourth bearing assembly 96 is the most distally disposed bearing assembly along the shaft 26.
Abstract translation: 用于摆盘活塞泵10的轴承装置24包括第一，第二，第三和第四轴承组件90,92,94,96。第一和第二轴承组件90,92支撑驱动轴部分70以在壳体内旋转 16,18围绕中心纵向轴线74，而第三和第四轴承组件94,96支撑负载板28，以相对于轴26的偏心轴部分72旋转。第二轴承组件92从第一轴 90，第三个94向远端设置到第二个92，第四个96设置在远端到第三个94.第四个轴承组件96是沿轴26最向远的轴承组件。
