FLÜSSIGKEITSKUPPLUNGSEINHEIT, KOMBINATION EINER FLÜSSIGKEITSKUPPLUNGSEINHEIT MIT EINER STEUEREINHEIT UND KOMBINATION EINER VARIABLEN VERDRÄNGERPUMPE MIT EINEM STEUERSYSTEM

摘要

A fluid coupler arrangement (60) is described. The fluid coupler (60) is used for connecting a nurse vehicle (40) fluid transfer conduit (52) to a sprayer vehicle (10) intake fluid conduit (24) so as to form a continuous flow path through the coupler (60). Said coupler (60) arrangement comprising: a first coupler section (64) including an insert body (110) defining a first flow passageway (112) there through and a second coupler section (62) including a receptacle body (66) defining a second flow passageway (68) there through and defining a receptacle (62) for receiving an end region of said insert body (110). To facilitate and improve the coupling process and to avoid leakage it is proposed that said first coupler section (64) comprising first and second poppet valves (140, 90) including a valve seats (160, 106) formed at one end of the first and second flow passageways (112, 68). First and second valve heads (152, 94) having periphery biased into sealing (158, 100) engagements with respective valve seats (160, 106); said receptacle (62) having an interior wall surface (84) joined to an annular end wall surface (86); said end region of said insert body (110) defining a seal groove (130) bridged by said interior wall surface (84) when said end region is located within said receptacle (62); and an inflatable seal (132) being located in said seal groove (130) and acting, when inflated, for locking said receptacle body (66) and said insert body (110) together while preventing leakage. Furthermore a combination of a fluid coupler arrangement (60) with a control arrangement and a combination of a variable displacement pump (26) with a control system for said pump (26) is described.