公开(公告)号：US06772741B1

公开(公告)日：2004-08-10

申请号：US10446513

申请日：2003-05-28

申请人： Alan T. Pittel ,  Ann Weimer ,  Chris G. Hadre

发明人： Alan T. Pittel ,  Ann Weimer ,  Chris G. Hadre

IPC分类号： F02M2508

CPC分类号： F02M25/089 ,  F02M25/0854

摘要： A vapor recovery canister is provided and includes an inlet port, an outlet port, and a first and second valve. The first and second valves are operable to restrict fluid flow into the canister, whereby the first valve is operable to selectively close the inlet port and the second valve is operable to selectively close the outlet port. In addition, the second valve includes at least one orifice formed therethrough for continuous fluid communication with an ambient air stream. In this manner, if both the first and second valves are in a closed position, an ambient air stream will be in fluid communication with an interior volume of the canister during a purging process through interaction of the orifice. The interaction of the orifice causes a high vacuum pressure within the canister, thereby increasing working capacity and reducing diurnal breathing loss.

摘要翻译： 提供蒸汽回收罐，包括入口端口，出口端口以及第一和第二阀门。 第一和第二阀可操作以限制流入罐的流体，由此第一阀可操作以选择性地关闭入口端口，并且第二阀可操作以选择性地关闭出口。 此外，第二阀包括穿过其形成的至少一个孔，以与环境空气流连续流体连通。 以这种方式，如果第一阀和第二阀都处于关闭位置，则通过孔的相互作用在清洗过程中环境空气流将与罐的内部体积流体连通。 孔的相互作用导致罐内的高真空压力，从而增加工作能力并减少昼夜呼吸损失。