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1. 发明申请

US20130340609A1 PUMP HEAD OUTLET PORT 审中-公开
标题翻译：泵头出口口
公开(公告)号：US20130340609A1
公开(公告)日：2013-12-26
申请号：US13985967
申请日：2012-03-09
申请人： Joshua A. Shreve , Neil Almeida , John Angelosanto
发明人： Joshua A. Shreve , Neil Almeida , John Angelosanto
IPC分类号： F04B53/16
CPC分类号： F04B53/164 , F04B13/00 , F04B53/007 , F04B53/06 , G01N30/32 , G01N2030/326
摘要： Pumps used in liquid chromatography applications employ actuators for pressurizing and moving liquid. An actuator includes a pump head having a chamber, a gland, a movable rod extending through the gland into the chamber of the pump head, and a plunger seal disposed in the gland around the rod for sealing against fluidic leakage from the chamber. The plunger seal has an annular flange that provides an OD (outer diameter) seal against the gland. The flange defines a seal cavity. The pump head further includes an outlet port and an outlet channel. One end of the outlet channel is in communication with the outlet port and the other end of the outlet channel opens into the seal cavity of the plunger seal. The outlet channel provides a flow path for liquid in the chamber to travel towards the outlet port in response to movement of the rod.
摘要翻译：用于液相色谱应用的泵使用用于加压和移动液体的致动器。致动器包括泵头，其具有腔室，密封套，通过压盖延伸到泵头的腔室中的活动杆以及设置在杆周围的压盖中的活塞密封件，用于密封以防止来自腔室的流体泄漏。柱塞密封件具有环形凸缘，其向压盖提供OD（外径）密封。凸缘限定密封腔。泵头还包括出口和出口通道。出口通道的一端与出口连通，出口通道的另一端通向柱塞密封件的密封腔。出口通道为腔室中的液体提供流动路径，以响应于棒的移动朝向出口移动。

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