PRV-pressure relief valve
    2.
    发明授权

    公开(公告)号:US11940055B2

    公开(公告)日:2024-03-26

    申请号:US17639341

    申请日:2020-09-01

    IPC分类号: F16K17/06 F16K27/02

    摘要: In general terms, the present invention relates to a safety valve or a pressure relief valve (PRV) that is developed to be used in combination boilers and similar appliances and utilized for the purpose of controlling or limiting system pressure. Relief valves are generally used as safety devices in systems where fluid pressure is important, and they reduce the system pressure either by discharging fluid from the system or simply by interrupting the fluid conveyance in case of an emergency when there is an increase in pressure. The present invention relates to a pressure relief valve, the rear cover of which is attached to the body by means of a clawed structure and manufactured from entirely recyclable thermoplastic material.

    Safety valve for cryogenic insulated gas cylinder
    5.
    发明授权
    Safety valve for cryogenic insulated gas cylinder 有权
    低温绝缘气瓶安全阀

    公开(公告)号:US09464763B2

    公开(公告)日:2016-10-11

    申请号:US14396059

    申请日:2013-05-15

    发明人: Weiguo Lu Kailu Wang

    摘要: The invention relates to a safety valve for a cryogenic insulated gas cylinder, which comprises a valve body, and the valve body further comprises a gas inlet flow channel, a valve seat, a slide way, a valve core and a spring, a gas inlet connecting thread and an adjusting nut. An adjusting nut exhaust hole set on said adjusting nut, a spring set between the said adjusting nut and a spring bracket with an exhaust hole. A valve assembly further comprises the valve core, a plurality of guide rings, a positioning steel ball and a valve flap, a valve core exhaust hole is provided in the valve core. The safety valve has high stability in discharge pressure and return pressure, high repeatability and good sealing performance, and is firm in structure, difficult to be damaged and high in safety.

    摘要翻译: 本发明涉及一种用于低温绝热气瓶的安全阀,其包括阀体,阀体还包括气体入口流动通道,阀座,滑动通道,阀芯和弹簧,气体入口 连接螺纹和调节螺母。 设置在所述调节螺母上的调节螺母排气孔,设置在所述调节螺母和具有排气孔的弹簧支架之间的弹簧。 阀组件还包括阀芯,多个导向环,定位钢球和阀瓣,阀芯排出孔设置在阀芯中。 安全阀具有排出压力和回流压力稳定性高,重复性好,密封性能好等特点,结构坚固,难以破损,安全性高。

    Coking resistant after-treatment dosing value
    7.
    发明授权
    Coking resistant after-treatment dosing value 有权
    抗焦虑后处理剂量值

    公开(公告)号:US09416709B2

    公开(公告)日:2016-08-16

    申请号:US13524039

    申请日:2012-06-15

    IPC分类号: F02M47/00 F01N3/20 F01N3/36

    摘要: A dosing valve for administering a reducing agent into an exhaust stream within an exhaust manifold of an internal combustion engine. The dosing valve includes a valve needle internally coaxial to a valve body and held in a closed position by a force of compressed spring acting axially and held in relation to the valve needle and valve body. The negative impact of varnish and dehydrogenated compounds, or coking products, of hydrocarbon based reducing agents, is substantially reduced or eliminated. Additionally, this includes decreased sensitivity to the negative impact of the precipitates and crystals that come out of the solution due to temperature change with urea-based reducing agents.

    摘要翻译: 一种用于将还原剂施用到内燃机的排气歧管内的排气流中的计量阀。 计量阀包括内部与阀体同轴的阀针,并通过作用在轴向上并相对于阀针和阀体保持的压缩弹簧的力保持在关闭位置。 基于烃类还原剂的清漆和脱氢化合物或焦化产物的负面影响被大大降低或消除。 另外,这包括由于由于基于尿素的还原剂的温度变化而从溶液中出来的沉淀物和晶体的负面影响降低的敏感性。

    COMPACT DOSING DEVICE FOR AN INJECTOR WITH TWO FUEL CIRCUITS FOR AN AIRCRAFT TURBOMACHINE
    8.
    发明申请
    COMPACT DOSING DEVICE FOR AN INJECTOR WITH TWO FUEL CIRCUITS FOR AN AIRCRAFT TURBOMACHINE 有权
    用于喷气式飞机的两个燃料电路的注射器的紧凑的装药装置

    公开(公告)号:US20160017808A1

    公开(公告)日:2016-01-21

    申请号:US14772924

    申请日:2014-03-05

    申请人: SNECMA

    IPC分类号: F02C7/22

    摘要: A fuel dosing device for a fuel injector of an aircraft turbomachine, including an opening, a movable member for sealing the opening, and elastic return, with the member able to be displaced under the effect of the fuel pressure. The device includes a first outlet communicating with a primary circuit of the injector as well as a second outlet communicating with a secondary circuit. In addition, it is designed such that up to a defined level of displacement of the sealing member, the latter allows the fuel coming from the opening to reach the first outlet and, only beyond the defined level of displacement, the member allows the fuel coming from the opening to reach the second outlet.

    摘要翻译: 一种用于飞机涡轮机的燃料喷射器的燃料计量装置,包括开口,用于密封开口的可动构件和弹性回复,该构件能够在燃料压力的作用下移位。 该装置包括与喷射器的主回路连通的第一出口以及与二次回路连通的第二出口。 此外,它被设计成使得密封构件的定位水平的位移允许来自开口的燃料到达第一出口,并且只有超过限定的位移水平才允许燃料来到 从开口到达第二个出口。

    Tip-resistant valve plugs
    9.
    发明授权
    Tip-resistant valve plugs 有权
    防尖端阀塞

    公开(公告)号:US09222588B2

    公开(公告)日:2015-12-29

    申请号:US14279680

    申请日:2014-05-16

    申请人: West Troy, LLC

    IPC分类号: F16K15/02 F16K15/00 F16K17/12

    摘要: A tip-resistant valve plug comprises a valve head, first and second retention legs, and an anti-tip fin. The valve head defines a fluid barrier. The anti-tip fin and the retention legs extend from the same side of the valve head. The anti-tip fin comprises a groove that allows the valve head to flex along a longitudinal fin axis; the anti-tip fin extends from the side of the valve head to a fin height dimension that is greater than a relief spring compression dimension caused by the tip-resistant valve moving between a closed position and an open position; or the valve head has a smaller moment of inertia evaluated in a direction the anti-tip fin extends across the valve head than a moment of inertia evaluated in a direction normal to the direction the anti-tip fin extends across the valve head.

    摘要翻译: 防顶塞阀包括阀头,第一和第二保持腿,以及防尖端翅片。 阀头限定了流体屏障。 防顶鳍和保持腿从阀头的同一侧延伸。 防顶鳍包括允许阀头沿着纵向翅片轴线弯曲的凹槽; 所述防顶部翼片从所述阀头的侧面延伸到翅片高度尺寸,所述翼片高度尺寸大于由所述防倾斜阀门在关闭位置和打开位置之间移动引起的安全弹簧压缩尺寸; 或者阀头在反尖端翅片穿过阀头延伸的方向上被评估的惯性矩小于沿着与顶端翼片穿过阀头延伸的方向垂直的方向的惯性矩。

    Pressure retention valve
    10.
    发明授权
    Pressure retention valve 有权
    压力保持阀

    公开(公告)号:US09182046B2

    公开(公告)日:2015-11-10

    申请号:US13394922

    申请日:2010-10-12

    IPC分类号: F16K17/20 F16K17/04 F16K17/06

    摘要: A pressure retention valve including a housing having an inlet passage and an outlet passage that can be connected together and a separating diaphragm subdividing the housing into two portions, wherein, in operation of the valve, a first portion conveys fluid and a second portion is fluid-free. The valve further includes a valve seat defining an end of the inlet passage, arranged in the fluid-conveying portion of the housing, and has a first sealing surface, a shut-off body which is arranged movably in the fluid-conveying portion of the housing and has a second sealing surface, and a spring element having a spring force, which is arranged in the fluid-free portion of the pressure retention valve. The spring element is so arranged that its spring force prestresses the second sealing surface in the direction towards the first sealing surface so that in a position of the shut-off body that closes the valve the sealing surfaces are in engagement with each other and the shut-off body separates the inlet passage from the outlet passage. The inlet passage is so arranged that a fluid flowing in through the inlet passage in operation of the valve is applied to the shut-off body in such a way that the fluid exerts on the shut-off body a force which acts in opposition to the spring force of the spring element. The shut-off body has a guide portion which extends into the inlet passage, and the inlet passage is portion-wise of such a design configuration that it forms a guide bush in which the guide portion of the shut-off body is guidedly received.

    摘要翻译: 一种压力保持阀,包括具有可以连接在一起的入口通道和出口通道的壳体,以及将壳体细分为两部分的分隔膜,其中在阀的操作中,第一部分输送流体,第二部分是流体 -自由。 阀还包括限定入口通道的端部的阀座,该阀座布置在壳体的流体输送部分中,并且具有第一密封表面,切断体,其可移动地设置在流体输送部分中 壳体并具有第二密封表面,以及具有弹簧力的弹簧元件,其布置在压力保持阀的无流体部分中。 弹簧元件被布置成使得其弹簧力沿着朝向第一密封表面的方向预应力于第二密封表面,使得在关闭阀的关闭主体的位置处,密封表面彼此接合并且关闭 入口通道与出口通道分开。 入口通道被布置成使得在阀的操作中通过入口通道流动的流体以这样的方式施加到截止体,使得流体在关闭体上施加相对于 弹簧元件的弹簧力。 截止体具有延伸到入口通道中的引导部分,并且入口通道是这样的设计构造的分段方式,其形成导向套筒,导向套筒中的导向部分被引导地接收。