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1. 发明公开

EP3249205A1 JET ENGINE 有权
标题翻译：喷气发动机
公开(公告)号：EP3249205A1
公开(公告)日：2017-11-29
申请号：EP15893346.5
申请日：2015-05-27
申请人： IHI Corporation
发明人： KIMURA, Takehiko , MUROOKA, Takeshi , KAMEI, Atsushi
IPC分类号： F02K3/06 , F02C7/00 , F02C7/042 , F02K1/16
CPC分类号： F02C9/20 , F01D17/162 , F02C3/04 , F02C7/042 , F02K1/16 , F02K1/165 , F02K3/06 , F05D2220/326 , F05D2220/327 , F05D2240/12 , F05D2270/02 , F05D2270/101 , Y02T50/671
摘要： A jet engine which includes: a fan (3, 31, 32, 33) provided with a plurality of stages of rotor blades (3b1, 3d1, 3g1, 3i1, 3k1); a compressor (4, 5) which compresses air which is sent from the fan (3, 31, 32, 33); a combustor (6) which generates combustion gas by using compressed air generated by the compressor (4, 5); a turbine (7, 8) which generates a driving force from the combustion gas; and a nozzle (11a) which discharges the combustion gas, the jet engine further includes: a variable guide vane (3f1, 3fa1, 3fb1, 3fc1) which is disposed upstream of the rotor blades (3d1, 3g1, 3i1, 3k1) of a second and later stage of the rotor blades (3b1, 3d1, 3g1, 3i1, 3k1) of the fan (3, 31, 32, 33) and which adjusts an inlet angle of air flow against the second and later stage of the rotor blades (3d1, 3g1, 3i1, 3k1); a fluid resistance adjusting device (11b) which adjusts a fluid resistance at the nozzle (11a); and a controller (12) which controls the variable guide vane (3f1, 3fa1, 3fb1, 3fc1) such that the inlet angle at the time of cruise flight is smaller than the inlet angle at the time of acceleration and controls the fluid resistance adjusting device (11b) such that increase in the fluid resistance, due to an increase in a volume flow at an outlet of the fan (3, 31, 32, 33) corresponding to a reduction in the inlet angle, is suppressed.
摘要翻译： 1。一种喷气发动机，其特征在于，具有：具有多级动叶片（3b1,3d1,3g1,3i1,3k1）的风扇（3,31,32,33）; 压缩机（4,5），压缩从风扇（3,31,32,33）送出的空气;压缩机燃烧器（6），其利用压缩机（4,5）产生的压缩空气产生燃烧气体; 从燃烧气体产生驱动力的涡轮机（7,8）和排出燃烧气体的喷嘴（11a），所述喷气发动机还包括：可变导向叶片（3f1,3fa1,3fb1,3fc1），所述可变导向叶片布置在所述转子叶片（3d1,3g1,3i1,3k1）风扇（3,31,32,33）的转子叶片（3b1,3d1,3g1,3i1,3k1）的第二级和后级，并且调节风扇相对于第二级和后级转子叶片的入口角度（3d1,3g1,3i1,3k1）; 调节喷嘴（11a）的流体阻力的流体阻力调节装置（11b）; 和控制器（12），其控制所述可变导向叶片（3f1,3fa1,3fb1,3fc1），使得巡航行驶时的入口角度小于加速时的入口角度，并且控制流体阻力调节装置（11b），使得由于风扇（3,31,32,33）的出口处的体积流量的增加而导致的流体阻力的增加被抑制，所述体积流量对应于入口角度的减小。

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