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101 条记录 (耗时 0.014 秒)

    Venturi Valve and Control System
    1.
    发明申请
    Venturi Valve and Control System 有权
    文丘里阀门和控制系统

    公开(公告)号：US20130233411A1

    公开(公告)日：2013-09-12

    申请号：US13415690

    申请日：2012-03-08

    申请人： Kieran Donohue

    发明人： Kieran Donohue

    IPC分类号： F16K31/12

    CPC分类号： F24F11/04 ,  F24F11/74 ,  F24F2011/0042 ,  F24F2110/40 ,  Y10T137/7789

    摘要： Embodiments of the invention provide a venturi valve and control system for use in an indoor environment to regulate air flow. The venturi valve includes a substantially cylindrical pipe, a high pressure sensing assembly, a low pressure sensing assembly, a differential pressure transducer, and a damper assembly. The high pressure sensing assembly and the low pressure sensing assembly do not substantially impede air flow through the valve. A controller is connected to the differential pressure transducer and a damper actuator. The controller determines a current flow rate of air into the indoor environment and operates the damper actuator in order to provide a desired flow rate of air into the indoor environment.

    摘要翻译： 本发明的实施例提供了一种在室内环境中用于调节空气流量的文丘里阀和控制系统。 文丘里阀包括基本上圆柱形的管，高压感测组件，低压感测组件，差压传感器和阻尼器组件。 高压感测组件和低压感测组件基本上不阻碍通过阀的空气流动。 控制器连接到差压传感器和阻尼器执行器。 控制器确定空气进入室内环境的当前流量并操作阻尼器致动器，以便将期望的空气流量提供到室内环境中。

    Conduit arrangement with protection against rupture and leakage
    2.
    发明授权
    Conduit arrangement with protection against rupture and leakage 失效
    导管布置，防止破裂和泄漏

    公开(公告)号：US4004607A

    公开(公告)日：1977-01-25

    申请号：US623712

    申请日：1975-10-20

    申请人： Lennart Werner Freese

    发明人： Lennart Werner Freese

    IPC分类号： F16K17/22 ,  F16K17/20 ,  F16L55/055 ,  F16K31/12

    CPC分类号： F16L55/055 ,  F16K17/20 ,  Y10T137/7727 ,  Y10T137/7759 ,  Y10T137/7785 ,  Y10T137/7789

    摘要： A conduit arrangement for heavy duty purposes in which a conduit section, such as a length of flexible hose, may be subjected in use to high stresses from pressures attaining several hundred atmospheres, wherein the arrangement provides protection against ruptures and significant leaks and comprises stop valve means at the inlet end of the conduit section, pressure drop type flow sensing means (e.g. an orifice plate or venturi restriction) at the outlet of said section, and pressure comparator means for comparing the pressure drop over the flow sensing means with that over the stop valve means and operative to effect a rapid closing operation of the stop valve means if the ratio of said pressure drops deviates by a certain amount from a predetermined value.

    摘要翻译： 用于重型用途的导管装置，其中诸如一段柔性软管的导管段可能受到来自达到几百个大气压的压力的高应力承受，其中该装置提供防止破裂和显着泄漏的保护，并且包括截止阀 在导管部分的入口端处的装置，在所述部分的出口处的压降型流量检测装置（例如孔板或文氏管限制）和用于将流量感测装置上的压降与 截止阀装置，并且如果所述压降的比率与预定值偏差一定量，则可操作以实现截止阀装置的快速关闭操作。

    Gas water heater
    3.
    发明授权
    Gas water heater 失效
    燃气加热器

    公开(公告)号：US3722523A

    公开(公告)日：1973-03-27

    申请号：US3722523D

    申请日：1970-10-14

    申请人： MATSUSHITA ELECTRIC IND CO LTD

    发明人： KAWABATA N ,  INDO M ,  NISHIBAYASHI N

    IPC分类号： F23N1/08 ,  F23N1/00

    CPC分类号： F23N1/087 ,  Y10T137/2511 ,  Y10T137/7754 ,  Y10T137/7789 ,  Y10T137/7792

    摘要： This invention relates to a gas water heater wherein a diaphragm for opening a gas valve utilizing the water flow is provided in the course of water supply passage to a heat exchanger, the low pressure chamber of said diaphragm is communicated with a low pressure Venturi portion formed by the aid of increasing the flow velocity in the water supply passage, and a control element is proceedably and recedably provided in the Venturi portion to automatically regulate the aperture of the Venturi portion corresponding to the variation of amount of water flow, intended for automation of water amount control and promoting the enlargement of range of adjusting water temperature and simplification of operation.