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单词 resojet
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resojet

英汉-汉英词典
n. 共鸣式喷气发动机
词组 | 习惯用语
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  • resort n. (度假)胜地；手段；凭借 vi. 诉诸；常去
  • brisket n. 胸肉；胸部
  • resorts n. 度假村；度假胜地（resort复数） v. 诉诸（resort的第三人称单数）
  • Prescott n. 普莱斯考特（男子名，姓氏）
resojet engine 脉动式喷气发动机

网络短语:
resojet 喷气发动机; 共鸣式脉动喷气发动机; 共鸣式喷气发动机;
resojet t engine 脉动式喷气发动机
英语百科

Valveless pulse jet

Working mechanism of a valveless pulse jet engine. The basic idea is that the column of air in the long exhaust pipe functions like the piston of a reciprocating engine. From another point of view, the engine is an acoustic resonator internally excited by resonating combustions in the chamber. The chamber acts as a pressure antinode which is compressed by the returning wave. The intake pipe acts as a kinematic antinode which sucks and exhausts gas. Note the longer length of the exhaust pipe—this is important as it prevents oxygen from entering the wrong way and igniting the system the wrong way. It does this because when the pulse ignites, there is still some exhaust gas in the exhaust pipe. That is sucked in before any additional oxygen is sucked in. Of course, the air intake pipe has already supplied the oxygen by that point and the pulse reignites.
Work mechanism of jam jar jet. (b) Mixture of air and fuel vapors could ignite using external igniter or by residual free radicals from last work cycle. (a) The previous jet expelled more air than conform to equilibrium pressure in chamber, thus some of the fresh air is sucked back. The pressure drop in this case is caused more by cooling of the gas in chamber than by gas inertia. Gas inertia can not be used well in this design because of lack of exhaust (resonator) pipe and very dissipative aerodynamics of the aperture.

A valveless pulse jet (or pulsejet) is the simplest known jet propulsion device. Valveless pulsejets are low in cost, light weight, powerful and easy to operate. They have all the advantages (and most of the disadvantages) of conventional valved pulse jets, but without the reed valves that need frequent replacement - a valveless pulsejet can operate for its entire useful life with practically zero maintenance. They have been used to power model aircraft, experimental go-karts, and unmanned military aircraft such as cruise missiles and target drones.
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更新时间：2025/6/20 1:34:07