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    • 24. 发明授权
    • Foaming pump with improved air inlet valve
    • 发泡泵具有改进的进气阀
    • US07337930B2
    • 2008-03-04
    • US11133176
    • 2005-05-20
    • Heiner OphardtAndrew Jones
    • Heiner OphardtAndrew Jones
    • F04B33/00
    • B05B11/3087
    • A piston pump for dispensing foam by simultaneously dispensing air and liquid through a foam generator and in which air to be dispensed is drawn into a chamber from which it is to be dispensed, at least in part, through an air inlet passageway which is different than a flow path out which foam is dispensed. A lost link valve arrangement provides for relative motion to open the air inlet passageway when air is drawn into the chamber and to close the air inlet passageway when air is forced out of the chamber to a dispensing outlet. Preferably, the lost link valve arrangement is provided by a piston carrying an actuator member coaxially slidable thereon to selectively open and close the air inlet passageway.
    • 一种用于分配泡沫的活塞泵,其通过泡沫发生器同时分配空气和液体,并且其中待分配的空气被抽吸到要从其分配的室中,至少部分地通过空气入口通道不同的空气入口通道 分配泡沫的流路。 失去的连杆阀装置提供当空气被吸入室中时打开空气入口通道的相对运动,并且当空气被迫离开腔室到分配出口时关闭空气入口通道。 优选地,所述丢失的连杆阀装置由承载有可在其上同轴滑动的致动器构件的活塞提供,以选择性地打开和关闭进气通道。