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1. 发明授权

US3648894A Fluid delivery system 失效
标题翻译：流体输送系统
公开(公告)号：US3648894A
公开(公告)日：1972-03-14
申请号：US3648894D
申请日：1969-05-01
申请人： BRITISH PETROLEUM CO
发明人： MORGAN ALAN GEORGE
IPC分类号： B67D7/38 , B67D7/48 , B67D5/373
CPC分类号： B67D7/38 , B67D7/48 , Y10T137/3367
摘要： A fluid delivery system, such as a petrol pump, wherein there is a flexible hose between the pump and meter and the hosecock, has its main shut-off valve placed between the pump and the hose, a nonreturn pressure-relief valve near the hose end remote from the pump and shut-off valve, and a switch mechanism contained in the hosecock for operating the shut-off valve. Hence, whenever the flow is shut off only the back pressure of the nonreturn valve is felt within the hose, thus permitting the use of light hose and making handling easier. Desirably, the hosecock is provided also with an automatic cutoff or overfill prevention device operative to close the main shuf-off valve when the end of the hosecock dips into the fluid.
摘要翻译：流体输送系统，例如汽油泵，其中在泵和仪表与气动阀之间存在柔性软管，其主截止阀位于泵和软管之间，靠近软管的非返回式减压阀远离泵和截止阀的端部，以及包含在壳体中的用于操作截止阀的开关机构。因此，每当关闭流量时，只有弹性阀的背压在软管内感觉到，从而允许使用轻软管并使操作更容易。希望的是，该炉灶还设置有一个自动切断或溢出防止装置，当装置的端部浸入流体中时，该装置可操作以封闭主疏水阀。

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