PURPOSE: To control exhaust currents properly, and improve combustion efficiency of an engine by forming a pair of walls facing each other in an exhaust nozzle of segments separated in the length direction, and composing each segment to be capable of advancing and retracting relative to a center...
JET ENGINE EXHAUST NOZZLE
An aircraft construction having an aircraft engine (1) and an engine nacelle (3) having a wall housing the engine. A cowl door (5) is provided in the wall of the nacelle providing access to the engine (1) to service it. An exhaust duct (11) extends from the engine (1) through the...
A variable area two-stage ejection nozzle exhaust system for a turbojet engine having an afterburner. wherein, a primary nozzle has spherical segments contained within a spherical shell housing which spherical segments are pivotally adjustable in response to augmented and non-augmented engine ...
JET ENGINE EXHAUST NOZZLE SYSTEM 优质文献 参考文献 引证文献JET SOUND SUPPRESSING MEANS CE Langston - US 被引量: 63发表: 1969年 Retractable silencers and thrust reversers for jet engines Complete Patent Searching Database and Patent Data Analytics Services. B Jean-Claude,HR Gerard - US 被引量: ...
摘要: PROBLEM TO BE SOLVED: To provide a jet engine exhaust nozzle and its controlling method, whereby it is practicable to enhance the fuel consumption, reduce the weight, lessen the parts where a heat resistant material is used, and to decrease the resistance of an airframe....
Fairly small surface area to keep cool, and no turbine in hot exhaust stream. Very high-temperature combustion and high expansion-ratio nozzle gives very high efficiency, at very high speeds.运动部件非常少。从0马赫到25+马赫;在非常高的速度下(>5马赫左右)效率很高。推重比超过100。没有复杂的进气口...
A jet engine comprises a propulsion nozzle which has an upstream portion provided with a variable area outlet, means for varying the variable area outlet, and a downstream portion having a fixed area outlet, the downstream portion being rigidly connected to the varying means and being adapted to...
When a de Laval nozzle is used to accelerate a hot engine exhaust, the outlet velocity may be locally supersonic. Turbojets are particularly suitable for aircraft travelling at very high speeds. 【参考译文】另一方面,涡轮喷气发动机对进入的空气和燃烧的燃料进行较小的质量加速,然后以非常高的速度将其...
This paper deals with an aircraft jet-engine exhaust nozzle controller, based on a mixed constructive scheme: a hydraulic actuator and a turbine pressure ratio sensor as pneumatic command block. The pressure sensor works as pressure ratio transducer with a pressure feedback, represented by a micro...