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1. 发明授权

US4021155A Oil burner pumping system with air purging valve 失效
标题翻译：石油燃烧器抽气系统带空气清洗阀
公开(公告)号：US4021155A
公开(公告)日：1977-05-03
申请号：US631578
申请日：1975-11-13
申请人： Robert W. Erikson , Frank L. Harwath
发明人： Robert W. Erikson , Frank L. Harwath
IPC分类号： F04B53/06 , F04C15/00 , F23K5/14 , F04B49/00 , F04B21/00
CPC分类号： F04C15/0053 , F04B53/06 , F23K5/142
摘要： A fuel burner pumping system includes a pump having an inlet communicating with a fuel source and an outlet which communicates with a control valve assembly for regulating the pressure of the fuel supplied to the fuel burner nozzle or nozzles through a nozzle passage leading from an outlet port of a main chamber in the control valve assembly. High pressure fuel is pumped into the main chamber through a first outlet passage leading from the pump. A second outlet passage leading from the pump to the nozzle passage by-passes the control valve assembly so that air may be purged from the system when the pump initially is started. An air purging valve within the second outlet passage is movable between closed and open positions for blocking fuel flow through such passage during normal operation of the pump and for opening the second passage when the pump initially is started. In one form of the invention, the purging valve is operable manually and, in another form of the invention, the air purging valve operates automatically.
摘要翻译：燃料燃烧器抽吸系统包括具有与燃料源连通的入口的泵和与控制阀组件连通的出口，该控制阀组件用于通过从出口端口引出的喷嘴通道来调节供应到燃料燃烧器喷嘴或喷嘴的燃料的压力控制阀组件中的主室。高压燃料通过从泵引出的第一出口通道被泵入主室。从泵通过喷嘴通道的第二出口通道绕过控制阀组件，使得当泵初始启动时可以从系统中清除空气。第二出口通道内的空气净化阀可在关闭位置和打开位置之间移动，以在泵的正常操作期间阻止燃料流过该通道，并且当泵初始启动时打开第二通道。在本发明的一种形式中，清洗阀可手动操作，并且在本发明的另一形式中，空气净化阀自动运行。

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