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公开(公告)号：US20160273775A1
公开(公告)日：2016-09-22
申请号：US15064245
申请日：2016-03-08
发明人： Michael GRIFFITHS , Daniel BICKLEY
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。
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公开(公告)号：US20150192075A1
公开(公告)日：2015-07-09
申请号：US14528562
申请日：2014-10-30
发明人： Michael GRIFFITHS
CPC分类号： F02C9/30 , F01D19/00 , F02C7/236 , F02C7/26 , F02C9/28 , F02C9/32 , F05D2220/323 , F05D2260/85 , F05D2270/03 , F05D2270/07 , F05D2270/304 , F05D2270/56 , F05D2270/64 , F05D2270/66 , Y02T50/671
摘要： An engine fuel control system includes a fuel metering valve that controls the flow of fuel between supply and delivery lines which delivers fuel to engine burners. The fuel control system includes a fixed displacement main pump which receives fuel from a low pressure source and delivers the fuel at a first high pressure to the supply line, an augmenter pump which receives fuel from the low pressure source and delivers the fuel at a second high pressure to one or more fuel-pressure operated auxiliary engine devices, and a start valve which is actuated at low engine speeds to open a flow path which diverts fuel delivered by the augmenter pump away from the auxiliary engine devices to the supply line to augment the fuel delivered thereto by the main pump, the start valve being actuated at higher engine speeds to shut the flow path.
摘要翻译： 发动机燃料控制系统包括燃料计量阀，其控制在将燃料输送到发动机燃烧器的供应和输送管线之间的燃料流动。 燃料控制系统包括固定排量主泵，其从低压源接收燃料并将燃料以第一高压输送到供应管线;增压泵，其从低压源接收燃料并在第二高压源处输送燃料 一个或多个燃料压力操作的辅助发动机装置的高压，以及以低发动机转速致动的起动阀，以打开将由增压泵输送的燃料从辅助发动机装置转移到供应管线以增加的流动路径 由主泵输送的燃料，起动阀以更高的发动机转速被致动以关闭流路。
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公开(公告)号：US20150192073A1
公开(公告)日：2015-07-09
申请号：US14528409
申请日：2014-10-30
发明人： Michael GRIFFITHS , Roger SOUTHERAN
CPC分类号： F02C9/263 , F01D17/10 , F02C7/22 , F02C7/232 , F02C7/236 , F02C9/32 , F05D2220/32 , F05D2270/3015 , F05D2270/306
摘要： An engine fuel control system is provided, including a supply line for the supply of fuel to a fuel metering valve which controls the flow of fuel to burners of an engine. Fuel is delivered at a first high pressure to the supply line by a pump arrangement. The engine fuel control system includes a restrictor located in the supply line for passage of the fuel delivered by the pump arrangement therethrough. The restrictor is configured such that fuel exiting the restrictor for onward supply to the fuel metering valve is at a second high pressure which is lower than the first high pressure. The engine fuel control system includes pressure limiting valves which actuate when the pressure difference between the first high and low pressure reaches a predetermined level to open a flow path for fuel on the supply line to by-pass the restrictor, thereby limiting the pressure difference.
摘要翻译： 提供了一种发动机燃料控制系统，其包括用于向燃料计量阀供应燃料的供应管线，该燃料计量阀控制向发动机燃烧器的燃料的流动。 燃料通过泵装置以第一高压输送到供应管线。 发动机燃料控制系统包括位于供应管线中的限流器，用于通过泵装置输送的燃料通过。 限流器构造成使得离开限流器的燃料用于向燃料计量阀的先前供给处于低于第一高压的第二高压。 发动机燃料控制系统包括压力限制阀，当第一高压和低压之间的压力差达到预定水平时开启压力限制阀，以打开用于供应管线上的燃料的流动路径，以限制限流器，从而限制压力差。
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