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公开(公告)号：US6151955A
公开(公告)日：2000-11-28
申请号：US368992
申请日：1999-08-05
CPC分类号： B67D7/0496 , B67D7/54
摘要： A device and method for testing for the recovery of vapor in a system in which a fluid is dispensed into a tank through a nozzle, according to which a vacuum is created to induce the flow of the vapor into the nozzle. The vacuum is measured and a display is provided that indicates whether or not the vacuum attains a predetermined threshold value.
摘要翻译： 一种用于测试系统中蒸汽回收的装置和方法，其中通过喷嘴将流体分配到罐中，根据该装置产生真空以引起蒸汽流入喷嘴。 测量真空并提供指示真空是否达到预定阈值的显示。
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公开(公告)号：US06247508B1
公开(公告)日：2001-06-19
申请号：US09525413
申请日：2000-03-15
IPC分类号： B65B104
CPC分类号： B67D7/048 , B67D7/0496 , B67D7/3209
摘要： A system and method for recovering a gasoline vapor/air mixture from a vehicle tank during the dispensing of a gasoline from a storage tank into the vehicle tank, according to which a flow line is established for the flow of the mixture from the vehicle tank to the storage tank during the dispensing. A pump is activated during the dispensing to flow the mixture from the vehicle tank to the storage tank, and the mixture flow is terminated in response to the termination of the dispensing. The pump is then activated to pressurize the flow line after which any reduction in the pressure of the mixture in the flow line is sensed. According to another embodiment, the mixture flow is terminated in response to termination of the dispensing and ambient air is introduced into the flow line. The pump is activated to pump the ambient air at a desired flow rate, and the flow rate of the air through the flow line is sensed. This latter flow rate can be compared to known pump performance data to determine the performance of the pump.
摘要翻译： 一种用于在将汽油从储罐分配到车辆罐中期间从车辆箱中回收汽油蒸汽/空气混合物的系统和方法，根据该系统和方法建立了用于将混合物从车辆罐流到 储存罐在分配期间。 在分配期间泵被激活以将混合物从车辆罐运送到储罐，并且混合物流响应于分配的终止而终止。 然后启动泵以对流动管线加压，在此之后感测到流动管线中的混合物的压力的任何降低。 根据另一个实施例，响应于分配的终止，混合物流被终止，并且环境空气被引入到流动管线中。 激活泵以期望的流速泵送环境空气，并且感测通过流动管线的空气的流量。 可以将后一种流量与已知的泵性能数据进行比较，以确定泵的性能。
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