A method of using metal powder powder column coupling

Abstract

The invention discloses a metal / water / air reaction feedback type engine and a high-speed sea flitting aircraft with a diving function. Aircrafts using solid fuel always partially or completely use metal powder fuel with high mass energy density ratio and volume energy density ratio to obtain higher speed, and the metal powder fuel is packaged into standard drug column units to be convenient for storage, transport and use. A feeder with an ejector rod and an isolation valve structure is used for feeding metal powder fuel to a combustion chamber of the metal / water / air reaction feedback type engine, the metal powder fuel which is axially fed into the combustion chamber is in reaction with water under the action of a turbine in high-speed rotation to generate hydrogen and metallic oxide, the generated hydrogen is in reaction with oxygen in sucked-in air in an afterburning chamber to generate water, and a small part of combustion end products of the engine is fed back to the main combustion chamber through a feedback passage to participate in the combustion process of the main combustion chamber. A rubber of the aircraft with the engine is positioned below the rear of a body, and the aircraft is provided with equipment such as a water suction pipe, a pull type water suction device and the like and capable of flying above water, on the water surface and underwater.

Description

technical field [0001] The invention relates to a package form of metal powder fuel, a jet engine using solid fuel, and a high-speed sea-skimming navigation vehicle with a diving function. Background technique [0002] Relying on the reaction between metal and water to provide power, it has the advantages of high energy, high speed, and strong cruising ability. The underwater vehicle that uses metal / water reaction to generate a large amount of heat and gas as the power system can only carry metal powder as a combustion agent. The oxidant and coolant water can be obtained from the marine environment outside the aircraft, which greatly increases the energy reserve of the power system and provides a material basis for high-power long-range aircraft. In order to ensure the energy characteristics of the metal / water reactive propellant, the solid metal powder content in the formula is often high, which successively brings difficult problems such as difficulty in ignition, insuffic...

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Problems solved by technology

In order to ensure the energy characteristics of the metal / water reactive propellant, the solid metal powder content in the formula is often high, which successively brings difficult problems such as difficulty in ignition, insufficient combustion, poor storage performance, etc., and cannot meet the basic performance requirements of the propellant. The final products of metal / water reaction combustion are metal oxides and hydrogen gas. The hydrogen gas discharged to the outside can be regarded as a loss of energy. Taking the aluminum water reaction as an example, the mass energy density ratio of aluminum is 15.15KJ / g volume energy The density ratio is 41.2KJ / cm 3 , if the hydrogen in the reaction product of aluminum water is fully utilized to allow it to fully react with the oxygen in the inhaled air in the engine afterburner, then the mass-energy density ratio of the combustion agent aluminum carried by the aircraft is 30.54KJ / g, the volume energy density ratio is 82.47KJ / cm 3

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