发明名称 |
HIGH-ALTITUDE LAVAL NOZZLE |
摘要 |
FIELD: engines. ^ SUBSTANCE: high-altitude Laval nozzle consists of round nozzle and round high-altitude attachment installed in alignment to the round nozzle. Nozzle and attachment are inter-connected forming an annular slot. The high-altitude attachment is located in the first or the last additional gas blowing collector. Additional gas blowing collector has outlet pipes with jets installed inside. The annular slot has a dividing plate; holes in the form of slots are made around the perimeter of this plate. Height of annular slot is hs = (0.2-0.4)rcr, where rcr is a radius of critical cross-section of round nozzle. Radius at the round nozzle cut is ra= (3-7) rcr. Jets have an outlet section area which allows additional gas blowing at the flow rate not more than 5%. ^ EFFECT: enhancement of path-mean specific pulse of aircraft propulsion device. ^ 5 cl, 9 dwg |
申请公布号 |
RU2326259(C1) |
申请公布日期 |
2008.06.10 |
申请号 |
RU20070115187 |
申请日期 |
2007.04.24 |
申请人 |
MOSKOVSKIJ AVIATSIONNYJ INSTITUT (GOSUDARSTVENNYJTEKHNICHESKIJ UNIVERSITET);SEMENOV VASILIJ VASIL'EVICH;SERGIENKO ALEKSANDR ALEKSANDROVICH |
发明人 |
SEMENOV VASILIJ VASIL'EVICH;SERGIENKO ALEKSANDR ALEKSANDROVICH |
分类号 |
F02K1/36 |
主分类号 |
F02K1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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