Aerospike nozzle and aircraft with same
A plug-type nozzle and pipeline technology, which is applied in the field of aircraft, can solve the problem that the area of the engine throat cannot be adjusted.
Active Publication Date: 2015-09-30
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0005] The plug-type nozzle has an external expansion effect, which can satisfy a wide range of falling pressure ratios. The nozzle has good aerodynamic performance, and can shield high-temperature parts of the engine. The pipe structure is fixed, which cannot meet the requirements of the engine with adjustable throat area when the state changes
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[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The embodiments of the pre...
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The invention discloses an aerospike nozzle and an aircraft with the same. The aerospike nozzle comprises a body, a first cone, a first rotor, a second rotor and a slider. The first cone is fixedly arranged in the body, the body, the first rotor, the second rotor, the first cone and a cone tail form a space, the first rotor, the second rotor and the body form a throat way, and the area of the throat way is variable according to shapes of the first rotor and the second rotor. The slider is arranged in the space and used for receiving high-pressure gas provided by an external gas source and driving the first rotor and the second rotor to rotate under the action of pushing of the high-pressure gas. The aerospike nozzle has the advantage that when the first rotor and the second rotor rotate, the area of the throat way is variable according to shapes of the first rotor and the second rotor. By the structure, thrust adjustability of the aircraft in an ascending process can be realized by means of change of the area of the throat way.
Description
technical field [0001] The present invention relates to the field of aircraft, in particular to a plug nozzle and an aircraft having the same. Background technique [0002] Glossary: [0003] Afterburner, the process in which the thrust of the engine exceeds the maximum working state in a short period of time. Engine afterburner shortens the take-off roll of the aircraft. Military aircraft can increase flight speed, climb rate and maneuverability during combat. The engine achieves afterburner by increasing exhaust flow and exhaust velocity. [0004] The development of the aircraft has led to a very wide range of the engine's working envelope, the drop pressure ratio of the nozzle can reach tens or even hundreds, and the afterburner needs to be turned on during the ascent. The nozzle throat area is adjustable, so that the thrust given by the engine to the aircraft can be adjusted by adjusting the throat area. [0005] The plug-type nozzle has an external expansion effect...
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Inventor 张少丽赵春生周吉利
Owner AECC SHENYANG ENGINE RES INST