Method and apparatus for delivering pressurized gas
    1.
    发明申请
    Method and apparatus for delivering pressurized gas 有权
    用于输送加压气体的方法和装置

    公开(公告)号:US20050147513A1

    公开(公告)日:2005-07-07

    申请号:US10497429

    申请日:2002-11-27

    摘要: This invention relates to an apparatus for pressurizing a fluid and delivering a gas comprising a pump, an accumulator and a heater such that the pump pressurizes a quantity fluid received from a fluid store and delivers that pressurized fluid to an accumulator. The accumulator then delivers a quantity of the pressurized fluid to a heater that, in turn, warms the fluid to a gas within a specified temperature and pressure range to be delivered to the end user as required. The invention further relates to a method of delivering a gas at a desired pressure and temperature wherein a quantity of fluid is received, pressurized and stored as a fluid in an accumulator storage vessel at a desired pressure. The fluid is then delivered from the accumulator to a heater where it is warmed and delivered to the end user as a gas at specified temperature and pressure.

    摘要翻译: 本发明涉及一种用于对流体加压并输送包括泵,蓄能器和加热器的气体的装置,使得泵对从流体存储器接收的量的流体加压并将该加压流体输送到蓄能器。 然后,蓄能器将一定数量的加压流体输送到加热器,加热器又将流体加热到指定温度和压力范围内的气体,以根据需要输送到最终用户。 本发明还涉及一种在期望的压力和温度下输送气体的方法,其中一定量的流体被接收,加压并以期望的压力作为流体储存在蓄能器储存容器中。 然后将流体从蓄能器输送到加热器,在那里它被加热并且以特定的温度和压力作为气体输送到终端用户。

    HYDRAULIC DRIVE SYSTEM AND METHOD OF OPERATING A HYDRAULIC DRIVE SYSTEM
    4.
    发明申请
    HYDRAULIC DRIVE SYSTEM AND METHOD OF OPERATING A HYDRAULIC DRIVE SYSTEM 有权
    液压驱动系统及液压驱动系统的运行方法

    公开(公告)号:US20090077957A1

    公开(公告)日:2009-03-26

    申请号:US11679174

    申请日:2007-02-26

    IPC分类号: F15B15/28 F15B15/20 F04B9/105

    摘要: A hydraulic drive system comprises a hydraulic actuator comprising a piston reciprocable between two cylinder heads for actuating a machine. A flow switching device reverses the direction of hydraulic fluid flow to and from chambers on opposite sides of the piston. The piston stops at the end of each piston stroke when a shuttle valve associated with the piston opens to allow hydraulic fluid to flow between the chambers cancelling the differential pressure that acts on the piston to cause reciprocal movement. A controller is programmed to determine when the piston reaches the end of each stroke based upon at least one of hydraulic pump speed, hydraulic fluid pressure, or elapsed time, with each of these measured during each stroke. The controller then sends an electronic signal to command the flow switching device to reverse the direction of hydraulic fluid flow.

    摘要翻译: 液压驱动系统包括液压致动器,其包括可在两个气缸盖之间往复运动的活塞,用于致动机器。 流动切换装置反转液压流体流向活塞相对侧的腔室的方向。 当与活塞相关联的梭阀打开以允许液压流体在两个室之间流动时,活塞在每个活塞冲程结束时停止,以消除作用在活塞上的压差以引起往复运动。 控制器被编程为基于液压泵速度,液压流体压力或经过时间中的至少一个来确定活塞何时达到每个冲程的结束,其中每个冲程中测量的每个行程中的每一个。 然后,控制器发送一个电子信号,命令流量切换装置反转液压流体流动的方向。

    Hydraulic drive system and method of operating a hydraulic drive system
    6.
    发明授权
    Hydraulic drive system and method of operating a hydraulic drive system 有权
    液压驱动系统及操作液压驱动系统的方法

    公开(公告)号:US07739941B2

    公开(公告)日:2010-06-22

    申请号:US11679174

    申请日:2007-02-26

    IPC分类号: F15B15/28 F15B15/00

    摘要: A hydraulic drive system comprises a hydraulic actuator comprising a piston reciprocable between two cylinder heads for actuating a machine. A flow switching device reverses the direction of hydraulic fluid flow to and from chambers on opposite sides of the piston. The piston stops at the end of each piston stroke when a shuttle valve associated with the piston opens to allow hydraulic fluid to flow between the chambers cancelling the differential pressure that acts on the piston to cause reciprocal movement. A controller is programmed to determine when the piston reaches the end of each stroke based upon at least one of hydraulic pump speed, hydraulic fluid pressure, or elapsed time, with each of these measured during each stroke. The controller then sends an electronic signal to command the flow switching device to reverse the direction of hydraulic fluid flow.

    摘要翻译: 液压驱动系统包括液压致动器,其包括可在两个气缸盖之间往复运动的活塞,用于致动机器。 流动切换装置反转液压流体流向活塞相对侧的腔室的方向。 当与活塞相关联的梭阀打开以允许液压流体在两个室之间流动时,活塞在每个活塞冲程结束时停止,以消除作用在活塞上的压差以引起往复运动。 控制器被编程为基于液压泵速度,液压流体压力或经过时间中的至少一个来确定活塞何时达到每个冲程的结束,其中每个冲程中测量的每个行程中的每一个。 然后,控制器发送一个电子信号,命令流量切换装置反转液压流体流动的方向。

    A HIGH PRESSURE GASEOUS FUEL SUPPLY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND A METHOD OF SEALING CONNECTIONS BETWEEN COMPONENTS TO PREVENT LEAKAGE OF A HIGH PRESSURE GASEOUS FUEL
    7.
    发明申请
    A HIGH PRESSURE GASEOUS FUEL SUPPLY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND A METHOD OF SEALING CONNECTIONS BETWEEN COMPONENTS TO PREVENT LEAKAGE OF A HIGH PRESSURE GASEOUS FUEL 有权
    用于内燃机的高压气体燃料供应系统和密封部件之间的连接以防止高压气体燃料泄漏的方法

    公开(公告)号:US20060213488A1

    公开(公告)日:2006-09-28

    申请号:US11277013

    申请日:2006-03-20

    IPC分类号: F02B43/00

    摘要: A high-pressure fuel system supplies gaseous fuel to an internal combustion engine. Gaseous fuel pressure within the system is at least 17 MPa during normal operation. The system comprises a number of components and conduits and at least one resilient member for sealing at an interface between two components. The resilient member consists essentially of thermoplastic polyurethane. A corresponding method provides sealing between components containing gaseous fluids at pressures that can be above 17 MPa, in which the gaseous fluids routinely undergo rapid reductions in pressure. The method comprises disposing a resilient member, which consists essentially of thermoplastic polyurethane, at an interface between the components. Gas pressure fluctuations can occur during operation of the components or when the high-pressure gas is vented from the components upon shut down of the high-pressure system. A particularly suitable application for the present method is high-pressure gaseous fuel supply systems for internal combustion engines.

    摘要翻译: 高压燃料系统向内燃机供应气体燃料。 系统内的气体燃料压力在正常运行期间至少为17MPa。 该系统包括多个部件和导管以及用于在两个部件之间的界面处密封的至少一个弹性部件。 弹性构件主要由热塑性聚氨酯组成。 相应的方法提供在含有气体流体的组分之间的密封,所述气体流体可以在高于17MPa的压力下,其中气态流体常常经历快速的压力降低。 该方法包括在组件之间的界面处布置基本上由热塑性聚氨酯组成的弹性构件。 气体压力波动可能发生在组件的运行过程中或高压气体从高压系统关闭时从部件排出时。 用于本发明方法的特别合适的应用是用于内燃机的高压气体燃料供应系统。

    Apparatus And Method For Holding A Cryogenic Fluid And Removing Cryogenic Fluid Therefrom With Reduced Heat Leak
    8.
    发明申请
    Apparatus And Method For Holding A Cryogenic Fluid And Removing Cryogenic Fluid Therefrom With Reduced Heat Leak 有权
    用于保存低温流体的装置和方法,并从中减少热量泄漏除去低温流体

    公开(公告)号:US20070000259A1

    公开(公告)日:2007-01-04

    申请号:US11426308

    申请日:2006-06-24

    IPC分类号: F25B19/00 F17C13/00 F17C13/08

    摘要: The apparatus comprises a double walled vacuum insulated vessel defining a cryogen space for holding a cryogenic fluid, a pump assembly comprising a pump with a suction inlet disposed within the cryogen space, and at least one elongated member extending from the pump to a drive unit disposed outside the cryogen space. The elongated member comprises an elongated non-metallic section that has a thermal conductivity that is less than that of a structurally equivalent elongated stainless steel member of the same length. In preferred embodiments, the elongated member can be one or both of a drive shaft or a rigid structural member for supporting the pump and holding it in a fixed relationship to the drive unit. The method employs the apparatus to increase hold times for holding cryogenic fluids by reducing heat leak into the cryogen space.

    摘要翻译: 该装置包括限定用于保持低温流体的冷冻剂空间的双壁真空绝热容器,包括具有设置在冷冻剂空间内的吸入口的泵的泵组件以及从泵延伸到驱动单元的至少一个细长构件 在制冷剂空间之外。 细长构件包括细长的非金属部分,其具有小于相同长度的结构相当的细长不锈钢构件的热导率。 在优选实施例中,细长构件可以是用于支撑泵并将其保持与驱动单元固定关系的驱动轴或刚性结构构件中的一个或两个。 该方法采用该装置通过减少热量泄漏到冷冻剂空间来增加保持低温流体的保持时间。

    Apparatus and method for holding a cryogenic fluid and removing cryogenic fluid therefrom with reduced heat leak
    9.
    发明授权
    Apparatus and method for holding a cryogenic fluid and removing cryogenic fluid therefrom with reduced heat leak 有权
    用于保持低温流体并从其中除去低温流体并减少热量泄漏的装置和方法

    公开(公告)号:US07356996B2

    公开(公告)日:2008-04-15

    申请号:US11426308

    申请日:2006-06-24

    IPC分类号: F17C13/00 F17C13/08

    摘要: The apparatus comprises a double walled vacuum insulated vessel defining a cryogen space for holding a cryogenic fluid, a pump assembly comprising a pump with a suction inlet disposed within the cryogen space, and at least one elongated member extending from the pump to a drive unit disposed outside the cryogen space. The elongated member comprises an elongated non-metallic section that has a thermal conductivity that is less than that of a structurally equivalent elongated stainless steel member of the same length. In preferred embodiments, the elongated member can be one or both of a drive shaft or a rigid structural member for supporting the pump and holding it in a fixed relationship to the drive unit. The method employs the apparatus to increase hold times for holding cryogenic fluids by reducing heat leak into the cryogen space.

    摘要翻译: 该装置包括限定用于保持低温流体的冷冻剂空间的双壁真空绝热容器,包括具有设置在冷冻剂空间内的吸入口的泵的泵组件以及从泵延伸到驱动单元的至少一个细长构件 在制冷剂空间之外。 细长构件包括细长的非金属部分,其具有小于相同长度的结构相当的细长不锈钢构件的热导率。 在优选实施例中,细长构件可以是用于支撑泵并将其保持与驱动单元固定关系的驱动轴或刚性结构构件中的一个或两个。 该方法采用该装置通过减少热量泄漏到冷冻剂空间来增加保持低温流体的保持时间。

    Method for transferring cryogenic liquids and associated cryogenic fill nozzle insulating boot
    10.
    发明申请
    Method for transferring cryogenic liquids and associated cryogenic fill nozzle insulating boot 审中-公开
    转移低温液体及相关低温填充喷嘴绝缘套管的方法

    公开(公告)号:US20060026969A1

    公开(公告)日:2006-02-09

    申请号:US11194168

    申请日:2005-08-01

    IPC分类号: F17C13/00 F17C7/02

    摘要: In the present method, cold substances are transferred through a nozzle with moving parts. An insulating boot facilitates the method. The present method is generally suited for use in transferring cryogenic substances such as during the refueling of liquid natural gas vehicles. The present method causes an insulating layer to be created between a removable boot and a nozzle separating the ambient environment from the moving parts of the nozzle, restricting the incursion of such moisture from the layer and therefore, from the moving parts to avoid freezing up of the moving parts.

    摘要翻译: 在本方法中,冷物质通过具有运动部件的喷嘴传送。 绝缘靴促进了该方法。 本方法通常适用于转移低温物质,例如在液化天然气车辆的加油期间。 本方法使得在可拆卸的靴子和喷嘴之间产生绝缘层,该喷嘴将周围环境与喷嘴的运动部分分开,限制了这种湿气从层中侵入并因此限制了从运动部件的侵入,以避免冻结 运动部件。