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    • 46. 发明申请
    • SYSTEM AND METHOD FOR CONTROLLING A GAS TURBINE ENGINE AFTERBURNER
    • 用于控制燃气轮机后的发动机的系统和方法
    • US20120174559A1
    • 2012-07-12
    • US12986493
    • 2011-01-07
    • Richard LingKarl KepplerKevin ShepherdMark Lee Denton
    • Richard LingKarl KepplerKevin ShepherdMark Lee Denton
    • F02K3/10
    • F02K3/10F02C9/16F02C9/26F02C9/48F02K1/16F02K1/17
    • Methods and apparatus are provided for operating a gas turbine engine. In a first operational mode, the gas turbine engine generates thrust using the propulsion turbine and not the afterburner when it is commanded to generate a thrust between at least a first thrust magnitude and a second thrust magnitude, and generates thrust using the propulsion turbine and the afterburner when it is commanded to generate thrust greater than the second thrust magnitude. In a second operational mode, the gas turbine engine generates thrust using the propulsion turbine and the afterburner when it is commanded to generate a thrust greater than the first thrust magnitude. The steady state thrust-versus-throttle position response has a substantially constant linear slope that is set to be two times the similar slope of the first operational mode. Thrust transients of the propulsion turbine and the afterburner are substantially synchronizing when the gas turbine engine is operating in the second mode and generating thrust greater than first thrust magnitude.
    • 提供了用于操作燃气涡轮发动机的方法和装置。 在第一操作模式中,当被命令在至少第一推力大小和第二推力大小之间产生推力时,燃气涡轮发动机使用推进涡轮而不是后燃器产生推力,并使用推进涡轮和 当燃烧器被命令产生大于第二推力大小的推力时。 在第二操作模式中,当被命令产生大于第一推力大小的推力时,燃气涡轮发动机使用推进涡轮和加力燃烧器产生推力。 稳态推力对节气门位置响应具有基本恒定的线性斜率,其被设置为第一操作模式的相似斜率的两倍。 当燃气涡轮发动机在第二模式下操作并且产生大于第一推力幅度的推力时,推进涡轮机和加力燃烧器的推力瞬变基本上同步。
    • 49. 发明授权
    • System for controlling the thrust nozzle adjustment of dual cycle gas
turbine jet propulsion engines
    • 用于控制双循环燃气轮机喷气推进发动机的推力喷嘴调节系统
    • US4467600A
    • 1984-08-28
    • US496336
    • 1983-05-23
    • Jurgen Peikert
    • Jurgen Peikert
    • F02B75/02F02C9/34F02K1/17F02K1/18
    • F02K1/17F02C9/34F02B2075/025Y02T50/677
    • The thrust nozzle opening angle of two cycle gas turbine jet engines is controlled in a system which comprises a low pressure compressor driven by a low pressure turbine. A first compressor is arranged radially inward for a first flow cycle or circuit and a second compressor is arranged radially outward for a second flow cycle or circuit. A high pressure compressor is driven by a high pressure turbine. A combustion chamber is situated upstream of the high pressure turbine. An afterburner is supplied with the turbine gases from the first, hot flow cycle and with compressed air from the second, relatively cool flow cycle or circuit. The system may have multiple shafts. The control is effected with reference to the instantaneous pressure relationship (.pi.NVZ) between the static pressure (p.sub.sD) downstream of the radially outer compressor (1a) of the second flow cycle (k2) and the static pressure (p.sub.sE) of the air flowing into the propulsion system. This ratio constitutes a variable rated control value (.pi..sub.NVZ-Soll) and is calculated as a function of the reduced rpm (N.sub.r) of the low pressure compressor (1). This type of control guarantees during a steady state operation particularly a minimal fuel consumption in the subsonic region and a maximum thrust in the supersonic region. This type of control further assures during a nonsteady type of operating, particularly the stability between the two aerodynamic limits, compressor surges (G1.sub.B or G1.sub.H) on the one hand and afterburner quenching (G2.sub.B or G2.sub.H) on the other hand.
    • 在包括由低压涡轮机驱动的低压压缩机的系统中控制两循环燃气轮机喷气发动机的推力喷嘴开度。 第一压缩机径向向内布置用于第一流动循环或回路,并且第二压缩机径向向外布置用于第二流动循环或回路。 高压压缩机由高压汽轮机驱动。 燃烧室位于高压涡轮机的上游。 向第一,热流循环的涡轮机气体和来自第二相对较冷的流动循环或回路的压缩空气供给加力燃烧器。 该系统可以具有多个轴。 参考在第二流动循环(k2)的径向外部压缩机(1a)下游的静态压力(psD)和流动的空气的静态压力(psE)之间的瞬时压力关系(pi NVZ)进行控制 进入推进系统。 该比率构成可变额定控制值(pi NVZ-Sol1),并且被计算为低压压缩机(1)的减速rpm(Nr)的函数。 这种类型的控制在稳态操作期间保证特别是亚音速区域中的最小燃料消耗和超音速区域中的最大推力。 这种类型的控制进一步确保在不稳定的操作类型,特别是两个空气动力学极限之间的稳定性,一方面是压缩机浪涌(G1B或G1H),另一方面是后燃烧器淬火(G2B或G2H)。