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1. 发明授权

US4889149A Dispensing tool assembly for charging a refrigerant or other fluid into a system 失效
标题翻译：用于将制冷剂或其它流体充入系统的分配工具组件
公开(公告)号：US4889149A
公开(公告)日：1989-12-26
申请号：US313242
申请日：1989-02-21
申请人： Kim A. Weaver , James M. Jones , Joseph A. Thibault
发明人： Kim A. Weaver , James M. Jones , Joseph A. Thibault
IPC分类号： B60H1/00 , F16L37/23 , F16L37/36 , F16L37/62 , F25B41/00 , F25B45/00
CPC分类号： B60H1/00585 , F16L37/23 , F16L37/36 , F16L37/62 , F25B41/003 , F25B45/00 , F25B2345/006 , Y10T137/0318
摘要： A tubular body supports a fluid actuated tubular piston connected to operate a coupling mechanism for releasably securing the body to a valve or inlet fitting on a refrigerant or coolant receiving system. The body encloses components which define a center passage connected to the fitting for first evacuating air from the system and then for directing liquid refrigerant or coolant into the system. In one embodiment, the passage receives an elongated valve opening member which is fluid actuated to a position opening the valve fitting, and a movable valve member closes the passage to the flow of refrigerant. The fluid actuated coupling mechanism provides for convenient and simple insertion of the tool assembly onto the fitting with no insertion force and also for automatic release of the tool assembly from the fitting after charging is completed. A fluid actuated valve member minimizes the loss of coolant or the volume of residue refrigerant which vaporizes when the tool assembly is removed from the fitting. When a coolant system is charged, the overflow container is also automatically filled.
摘要翻译：管状体支撑流体致动的管状活塞，其连接以操作联接机构，用于将本体可释放地固定到制冷剂或冷却剂接收系统上的阀或入口配件。主体包围部件，其限定了连接到接头的中心通道，用于首先从系统抽空空气，然后将液体制冷剂或冷却剂引导到系统中。在一个实施例中，通道接收细长的阀打开构件，其被流体致动到打开阀配件的位置，并且可移动阀构件关闭到制冷剂流的通道。流体致动联接机构提供了无需插入力的工具组件方便和简单地插入到配件上，并且还用于在充电完成之后将工具组件从配件自动释放。流体致动的阀构件使得当工具组件从配件移除时汽化的冷却剂损失或剩余制冷剂的体积最小化。当冷却剂系统充电时，溢出容器也自动填充。

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