公开(公告)号：US20160273775A1

公开(公告)日：2016-09-22

申请号：US15064245

申请日：2016-03-08

申请人： ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED

发明人： Michael GRIFFITHS ,  Daniel BICKLEY

IPC分类号： F23R3/34 ,  F02C9/34 ,  F23R3/28

CPC分类号： F23R3/346 ,  F02C7/222 ,  F02C7/228 ,  F02C7/232 ,  F02C9/263 ,  F02C9/34 ,  F23K5/06 ,  F23K5/147 ,  F23N2035/24 ,  F23R3/283 ,  F23R3/343

摘要： A combustion staging system has a splitting unit receiving and splitting metered fuel flow into out-going pilot and mains flows; pilot and mains fuel manifolds receiving the pilot and mains flows; and parallel mains flow scheduling valves distributing the mains flow. The mains flow scheduling valves pass the pilot fuel flow to injector pilot discharge orifices. Each mains flow scheduling valve has a chamber containing a piston, the chamber to a piston pilot side communicating with the pilot fuel manifold and the chamber to a mains side of the piston communicating with the mains fuel manifold. The piston is biased towards a closed pilot-only position preventing flow out of the chamber mains side to the injector mains discharge orifice. The piston is movable under increased pressure in the mains fuel manifold to an open pilot-and-mains position allowing flow out of the chamber mains side to the injector mains discharge orifice.

摘要翻译： 燃烧分级系统具有分流单元，其接收并分配计量燃料流进入向外的先导和主流; 接收飞行员和主电源的先导和主燃料歧管; 并联主电源调度阀分配电源流。 主流量调度阀通过先导燃料流到喷油器先导排放孔。 每个主流量调度阀具有容纳活塞的腔室，该腔室与活塞先导侧面连通，该导向侧面与导向燃料歧管和腔室连通到与主燃料歧管连通的活塞主电源侧。 活塞被朝向封闭的导向器位置偏置，从而防止从室主管侧流出到喷射器主排放口。 活塞可在主燃料歧管的增压下移动到打开的先导和电源位置，允许从室主管侧流出到喷射器主排放口。