公开(公告)号：US20230332585A1

公开(公告)日：2023-10-19

申请号：US18300724

申请日：2023-04-14

Applicant: Chart Inc.

Inventor： Thomas K. Drube

IPC: F04B23/02 ,  F04B9/105 ,  F04B15/08

CPC classification number: F04B23/021 ,  F04B9/105 ,  F04B15/08 ,  F04B2015/0822

Abstract: A pump for pumping a cryogenic liquid includes a pump housing defining an elongated cylinder. An elongated piston slides within the cylinder so that an intermediate fluid chamber, that is configured to receive an intermediate fluid, is defined within the cylinder adjacent to a first end of the piston and a fluid pumping chamber is defined within the cylinder adjacent to a second end of the piston. The fluid pumping chamber includes an inlet and an outlet. The pump housing is positioned within a sump. The sump is configured to receive and submerge a portion of the pump housing within the cryogenic liquid and to provide cryogenic liquid to the inlet of the pumping chamber for pumping. A sump jacket surrounds the sump so that a sump insulation space is defined therebetween. A pump jacket surrounds the pump housing so that a pump insulation space is defined therebetween.

公开(公告)号：US20180128225A1

公开(公告)日：2018-05-10

申请号：US15566686

申请日：2016-04-13

Applicant: Mitsui Engineering & Shipbuilding Co., Ltd.

Inventor： Makoto Kounosu ,  Seiichi Kitamura ,  Renzo Kanda

IPC: F02M59/08 ,  F02M59/26 ,  F02M59/10 ,  F04B15/08

CPC classification number: F02M59/08 ,  F02M59/10 ,  F02M59/105 ,  F02M59/20 ,  F02M59/26 ,  F02M59/30 ,  F02M2200/245 ,  F04B9/105 ,  F04B13/00 ,  F04B15/08 ,  F04B49/065 ,  F04B49/12 ,  F04B53/10 ,  F04B2201/0202 ,  F04B2201/0206 ,  F04B2201/0209 ,  F04B2201/0601 ,  F04B2203/09

Abstract: A fuel supply device includes: a linear actuator; a reciprocating pump having a boosting piston driven by the linear actuator and configured to reciprocate in an axial direction, the reciprocating pump being configured to suck the fuel when the boosting piston moves in a first direction and configured to boost and eject the fuel when the boosting piston moves in a second direction; and a controller configured to control driving of the linear actuator so as to adjust an amount of the fuel ejected from a boosting cylinder per reciprocating time by adjusting a ratio of a fuel ejection time and a fuel suction time of the reciprocating pump without changing the reciprocating time of the boosting piston in accordance with a load of the internal combustion engine. The adjustment adjusts a stroke length of the boosting piston and a moving speed of the boosting piston in the second direction.

公开(公告)号：US20180128211A1

公开(公告)日：2018-05-10

申请号：US15709093

申请日：2017-09-19

Applicant: Alberto Martin Perez

Inventor： Alberto Martin Perez

IPC: F02M21/06 ,  F17C9/02 ,  F02M21/02 ,  F17C5/02

CPC classification number: F02M31/125 ,  F02M21/0212 ,  F02M21/0245 ,  F02M21/0287 ,  F02M21/06 ,  F04B15/08 ,  F04B2015/0822 ,  F17C5/02 ,  F17C9/02 ,  F17C13/001 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2227/0369 ,  F17C2227/0372 ,  F17C2227/0374 ,  F17C2227/0379 ,  F17C2227/0381 ,  F17C2227/0383 ,  F17C2227/0386 ,  F17C2227/0393 ,  H01M2250/20 ,  H01M2250/405 ,  Y02B90/16 ,  Y02T10/126 ,  Y02T10/32 ,  Y02T90/32

Abstract: A liquefied light hydrocarbon (LLH) fuel system for a hybrid vehicle is disclosed. The fuel system comprises an insulated fuel tank having a buffer space, a fuel control valve, wherein an outlet to the fuel tank connects to a first end of the fuel line, wherein an inlet of the fuel control valve connects to a second end of the fuel line and wherein an outlet of the fuel control valve is adapted to connect to a fuel inlet to an internal combustion engine; and a tank heating system comprising: a heating element, wherein the heating element is disposed adjacent to or within the fuel tank; a heating power control system, wherein the heating power control system controls the amount of heat produced by the heating element to vaporize the LLH fuel. Methods of using the fuel system are also disclosed.

公开(公告)号：US09945364B2

公开(公告)日：2018-04-17

申请号：US14798058

申请日：2015-07-13

Applicant: Caterpillar Inc.

Inventor： Joshua W. Steffen ,  Dana R. Coldren

IPC: F04B15/08 ,  F04B9/113 ,  F04B53/04 ,  F04B9/117

CPC classification number: F04B15/08 ,  F04B9/113 ,  F04B9/1172 ,  F04B53/04 ,  F04B2015/081

Abstract: A pump has a pump body and at least first and second pumping elements, each pumping element including a piston defining a head-end and a rod-end. The pump receives a pressurized fluid at an inlet, and returns fluid through a drain outlet. A hydraulic distributor operates to fluidly connect the head end of an extending piston to the pressurized fluid, and the rod end of the extending piston to the drain outlet. The hydraulic distributor further connects the rod-end of a retracting piston to the drain outlet, and the rod-end of one or more retracting pistons to the drain or to a return pressure, which is lower than an extending pressure.

公开(公告)号：US20180058441A1

公开(公告)日：2018-03-01

申请号：US15689216

申请日：2017-08-29

Applicant: ACD, LLC

Inventor： Michael Wells

IPC: F04B49/06 ,  F04B15/08 ,  F04B17/04 ,  F04B1/12

CPC classification number: F04B49/065 ,  B63H21/38 ,  F02M21/02 ,  F02M21/0218 ,  F02M21/0245 ,  F04B9/02 ,  F04B11/005 ,  F04B15/08 ,  F04B17/042 ,  F04B23/026 ,  F04B2015/081 ,  Y02T10/32

Abstract: There is disclosed a modular, linearly actuated high-pressure pump for use in various applications with high-pressure fuel systems, in particular liquid cryogenic fuels such as Natural Gas, Hydrogen, Nitrogen and Argon (LNG/LH2/LN2/LAR). The pump utilizes linear actuation which smooths out the power profile. There are no dynamic seals which prevents failure from leakage. The primary benefit of a smooth, no pulse output and lack of dynamic seals is a longer life of the pump. Marine fuel systems that utilize cryogenic LNG are a primary application.

公开(公告)号：US20170225940A1

公开(公告)日：2017-08-10

申请号：US15495415

申请日：2017-04-24

Applicant: GP STRATEGIES CORPORATION

Inventor： MICHAEL MACKEY

IPC: B67D7/68 ,  F04B15/08 ,  B67D7/70

CPC classification number: B67D7/68 ,  B67D7/70 ,  F04B15/08 ,  F04B23/021 ,  F04B23/04 ,  F04B2015/081 ,  F04C11/005 ,  F04D7/02 ,  F04D13/12 ,  F04D13/14 ,  F04D29/5893 ,  F17C2221/033 ,  F17C2227/0128 ,  Y02E60/321 ,  Y10T137/86131

Abstract: A multiple pump system is disclosed. The multiple pump system may include a fluid tank and a multiple pump vessel connected to the fluid tank. The multiple pump vessel may include at least one first pump and at least one second pump located therein. In addition, the at least one first pump may be configured to dispense a fluid from the fluid tank at a first pressure, and the at least one second pump may be configured to dispense the fluid from the fluid tank at a second pressure. The first pressure may be different from the second pressure, such that the at least one first pump may be configured to dispense liquefied natural gas, and the at least one second pump may be configured to dispense compressed natural gas.

公开(公告)号：US20170167475A1

公开(公告)日：2017-06-15

申请号：US15323589

申请日：2015-07-09

Applicant: Eagle Industry Co., Ltd.

Inventor： Koichi MORI ,  Yoshio OSAWA ,  Kiyotaka FURUTA

IPC: F04B15/08 ,  F04B43/08

CPC classification number: F04B15/08 ,  F04B43/08 ,  F04B43/084 ,  F04B43/088 ,  F04B45/024 ,  F04B2015/081 ,  F25B9/00

Abstract: A liquid supply system includes first and second bellows 41 and 42 arranged in series in an expanding/contracting direction thereof in a vessel 12 and having first end portions respectively, which are close to each other and fixed to an inner wall of the vessel 12, and also having second end portions respectively, which are distant from each other and movable in the expanding/contracting direction. An inner space of the vessel 12 located outside the first bellows 41 serves as a first pump chamber P1. An inner space of the vessel 12 located outside the second bellows 42 serves as a second pump chamber P2. An inner space of the vessel 12 located inside the first and second bellows 41 and 42 serves as a sealed space R1. A shaft 15 to which the respective second end portions of the first and second bellows 41 and 42 are fixed is reciprocally moved to expand/contract the first and second bellows 41 and 42.

公开(公告)号：US20170130708A1

公开(公告)日：2017-05-11

申请号：US14934593

申请日：2015-11-06

Applicant: Caterpillar Inc.

Inventor： Alan R. Stockner

IPC: F04B15/08 ,  F04B53/10 ,  F04B1/12 ,  F04B53/14 ,  F04B9/02 ,  F04B53/16

CPC classification number: F04B15/08 ,  F04B1/12 ,  F04B9/02 ,  F04B27/0878 ,  F04B27/0891 ,  F04B27/0895 ,  F04B27/10 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16 ,  F04B2015/081

Abstract: A cryogenic pump for pumping cryogenic fluid is provided. The pump includes a pump assembly adapted for exposure to cryogenic fluid that includes a plurality of pumping elements disposed about a pump axis. A drive assembly drives the pumping elements to pump cryogenic fluid. A plurality of actuating elements are arranged circumferentially about the pump axis, each actuating element operatively interconnecting the drive assembly with a respective one of the pumping elements. Each actuating element includes a first portion disposed a first radial distance from the pump axis and a second portion disposed a second radial distance from the pump axis with the first radial distance being less than the second radial distance at ambient temperature.

公开(公告)号：US20170037879A1

公开(公告)日：2017-02-09

申请号：US15333455

申请日：2016-10-25

Applicant: Caterpillar Inc.

Inventor： Aaron Michael Brown ,  Kenneth Carroll Adams

IPC: F15B15/14 ,  F04B53/10 ,  F04B53/14 ,  F04B15/08 ,  F04B9/107

CPC classification number: F04B53/10 ,  F04B9/107 ,  F04B15/08 ,  F04B37/08 ,  F04B53/14 ,  F04B2015/081

Abstract: A hydraulic actuator for a cryogenic pump is provided. The hydraulic actuator includes a piston. The hydraulic actuator also includes a base housing. The hydraulic actuator further includes a push rod assembly. The push rod assembly includes a tube guide. The push rod assembly also includes a push rod. The push rod is adapted to reciprocate within the tube guide. The hydraulic actuator also includes a sealing assembly having a hollow cylindrical configuration. The sealing assembly includes a first static seal portion. The first static seal portion being connected to the base housing. The sealing assembly also includes a second static seal portion. The second static seal portion is connected to the push rod. The sealing assembly further includes an expandable annular bellow extending between the first and second static seal portions. The sealing assembly is adapted to prevent flow of a first fluid in a first direction.

Abstract translation: 提供一种用于低温泵的液压致动器。 液压致动器包括活塞。 液压致动器还包括基座壳体。 液压致动器还包括推杆组件。 推杆组件包括管引导件。 推杆组件还包括推杆。 推杆适于在管引导件内往复运动。 液压致动器还包括具有中空圆柱形构造的密封组件。 密封组件包括第一静密封部分。 第一静密封部分连接到基座外壳。 密封组件还包括第二静态密封部分。 第二静密封部分连接到推杆上。 密封组件还包括在第一和第二静态密封部分之间延伸的可扩张的环形波纹管。 密封组件适于防止第一流体沿第一方向流动。

公开(公告)号：US09562533B2

公开(公告)日：2017-02-07

申请号：US13882259

申请日：2011-09-14

Applicant: Taketo Johchi ,  Shingo Kunitani ,  Akira Yoshino

Inventor： Taketo Johchi ,  Shingo Kunitani ,  Akira Yoshino

IPC: F04D7/02 ,  F04D7/00 ,  F04B15/08 ,  F04D29/58

CPC classification number: F04D7/00 ,  F04B15/08 ,  F04D7/02 ,  F04D13/0653 ,  F04D13/08 ,  F04D29/5893

Abstract: A cryogenic pump for liquefied gases is provided, which shortens precooling time, has a small loss of cryogenic liquefied gas, excels in pump efficiency, and is advantageous in cost. A motor 1 and an impeller 2 are coupled by a shaft 3 for transmitting a rotative drive force therebetween, and the motor 1 is arranged on an upper side and the impeller 2 is arranged on a lower side. The motor 1 and the impeller 2 exist in an enclosed space 14 where they are communicated with each other and into which the cryogenic liquefied gas is introduced. A heat adjusting unit 11 is provided between the motor 1 and the impeller 2, the heat adjusting unit maintaining existence of the impeller 2 in a liquid phase of the cryogenic liquefied gas and maintaining existence of the motor 1 in a gas phase of the cryogenic liquefied gas. Thus the submerging of the motor 1 in the liquid becomes unnecessary, whereby the precooling time can be reduced remarkably and the loss of cryogenic liquefied gas due to vaporization caused by the submerging can be reduced, and in addition, the motor 1 itself can be configured at a comparatively low cost.

Abstract translation: 提供了一种用于液化气体的低温泵，其缩短预冷时间，低温液化气体的损失小，泵效率优异，成本有利。 马达1和叶轮2通过轴3联接，用于传递其间的旋转驱动力，马达1布置在上侧，叶轮2布置在下侧。 电动机1和叶轮2存在于封闭空间14中，它们彼此连通并且引入低温液化气体。 在马达1和叶轮2之间设置有热调节单元11，该热调节单元保持叶轮2在低温液化气体的液相中的存在，并且保持马达1在低温液化气相中的存在 加油站。 因此，电动机1在液体中的浸没变得不必要，从而可以显着降低预冷时间，并且可以减少由浸没引起的汽化引起的低温液化气体的损失，另外，也可以构成电动机1本身 成本相对较低。