Cooling of cryogenic meters sensing reverse flow

    公开(公告)号:US10288367B2

    公开(公告)日:2019-05-14

    申请号:US14208128

    申请日:2014-03-13

    Applicant: Chart Inc.

    Inventor: Paul Drube

    Abstract: Cooling of a meter by liquid flowing in a flow that is reverse from dispensing flow is described. A plurality of tubes is configured to transport a plurality of fluids comprising a first fluid and a second fluid. Dispense valves attached to corresponding tubes are configured to open when the first fluid is dispensed from a pump to a first outlet. Recirculation valves attached to respective tubes are configured to open when the second fluid is transported from the pump to a second outlet. A meter attached to a tube of the plurality of tubes is configured to measure properties of a fluid when the fluid flows through the tube, wherein the fluid is one of the first fluid and the second fluid. The meter is configured to sense reverse flow when the second fluid flows from the outlet section to the inlet section.

    Quick closing shut-off valve
    63.
    发明授权

    公开(公告)号:US07025083B2

    公开(公告)日:2006-04-11

    申请号:US10222263

    申请日:2002-08-15

    Abstract: A quick closing shut-off valve includes an inlet, an outlet and a passage there between. A closing element blocks the passage when in the closed position. The closing element is interconnected to a piston via a pull rod. The piston is positioned within a working chamber that communicates with the valve outlet. A safety valve also communicates with the working chamber and is positioned above the piston. As a result, when the pressure within the tank, and thus in the working chamber, reaches a maximum permissible pressure, the safety valve opens and the pressure above the piston decreases. The piston rises as a result and pulls the closing element via the pull rod into the closed position so that the valve is closed.

    Supplemental water heater tank and system
    64.
    发明授权
    Supplemental water heater tank and system 失效
    辅助热水箱及系统

    公开(公告)号:US06938581B2

    公开(公告)日:2005-09-06

    申请号:US10449979

    申请日:2003-05-30

    CPC classification number: F24H1/182 F24D17/00

    Abstract: A supplemental water heater tank and system features a supplemental tank with an inner vessel surrounded by an outer jacket. The space there between is generally evacuated of air so that the inner vessel is vacuum insulated. The supplemental tank includes water inlet and outlet ports. Water is heated in a water heater and transferred from the upper portion of the water heater tank to the lower portion of the vacuum-insulated supplemental tank through an insulated line and a dip tube that extends between the water inlet port and the bottom portion of the inner vessel. Hot water is withdrawn from the upper portion of the inner vessel of the supplemental tank for use in a home or the like.

    Abstract translation: 补充的热水器罐和系统具有补充罐,内部容器被外护套包围。 其间的空间通常被排空空气,使得内容器是真空绝缘的。 补充罐包括进水口和出水口。 水在热水器中加热,并通过绝缘线和浸入管从水加热器箱的上部转移到真空绝热补充罐的下部,该浸渍管在进水口和底部之间延伸 内船。 热水从辅助容器的内部容器的上部排出,用于家庭等。

    Carbon dioxide dry cleaning system
    65.
    发明申请
    Carbon dioxide dry cleaning system 审中-公开
    二氧化碳干洗系统

    公开(公告)号:US20050108829A1

    公开(公告)日:2005-05-26

    申请号:US11020399

    申请日:2004-12-21

    Abstract: A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber. The still may be positioned within the storage tank and partially surrounded with a shroud for efficient heating of the still with gas from the cleaning chamber. During agitation, liquid solvent from the cleaning chamber may be heated and filtered.

    Abstract translation: 二氧化碳干洗系统具有与压缩机连通的一对液体二氧化碳储存罐。 密封的清洁室包含待清洁的物体。 通过用压缩机选择性地对储罐进行加压,使二氧化碳液体通过清洁喷嘴流到清洗室,以便对被干燥清洁的物体进行搅动。 从清洗室排出的液态二氧化碳返回到储罐。 在替代实施例中,通过压缩机将单个储罐从来自清洁室的气体加压,使得来自储罐的液体溶剂通过喷嘴行进到清洁室。 清洁室中的物体被旋转的篮子搅动。 在预洗循环之后,来自清洁室的液体溶剂被引导到静止。 静止物中的液体溶剂通过与清洁室的顶部空间的连接而沸腾。 仍然可以定位在储罐内部分并且被护罩部分地包围,以便有效地加热来自清洁室的气体。 在搅拌期间,可以加热和过滤来自清洁室的液体溶剂。

    Pump seal
    69.
    发明授权

    公开(公告)号:US11761536B2

    公开(公告)日:2023-09-19

    申请号:US17375756

    申请日:2021-07-14

    Applicant: Chart Inc.

    Inventor: Eric Thor

    CPC classification number: F16J9/06 F16J7/00 F16J15/3268

    Abstract: An annular seal for sealing an opening in a pump housing surrounding a piston rod includes a primary sealing portion with an inner surface adjacent to the piston rod and an outer surface adjacent to the pump housing. An initial sealing portion features an inner wall and an outer wall so that an annular space is defined therebetween. A top wall extends between the inner and outer walls. A coil spring is positioned within the annular space of the initial sealing portion and urges the inner wall into engagement with the piston rod and the outer wall into engagement with the pump housing.

    Gas dispensing system with tank pressure and heat management

    公开(公告)号:US11649929B2

    公开(公告)日:2023-05-16

    申请号:US17229972

    申请日:2021-04-14

    Applicant: Chart Inc.

    Inventor: Lukas Konfrst

    Abstract: A system for cryogenic gas delivery includes a cryogenic tank configured to contain a cryogenic liquid and a gas within a headspace above the cryogenic liquid. The system also includes first and second vaporizers and a use outlet. A first pipe is configured to transfer gas from the headspace through the first vaporizer to the use outlet. A second pipe is configured to transfer liquid from the tank through the first vaporizer so that a first vapor stream is directed to the use outlet. A third pipe is configured to build pressure within the tank by transferring liquid from the tank through the second vaporizer so that a second vapor stream is directed back to the headspace of the tank. A first regulator valve is in fluid communication with the second pipe and opens when a pressure on an outlet side of the first regulator drops below a first predetermined pressure level. A second regulator valve is in fluid communication with the third pipe and opens when a pressure inside the tank drops below a second predetermined pressure level. The first predetermined pressure level is higher than the second predetermined pressure level.

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