Nitrogen cold air micro-propeller adopting three cylindrical propelling agent storage boxes
A propellant storage tank and micro-propulsion technology, which is applied to jet propulsion devices, aerospace vehicle propulsion system devices, rocket engine devices, etc., can solve the problems of increased nozzle loss and low utilization rate, and achieve low power consumption and structure Simple, low-cost effects
Inactive Publication Date: 2010-12-08
BEIHANG UNIV +1
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Problems solved by technology
Although the nozzle is light in weight, the weight of the whole system is moderate due to the need to equip high-pressure gas cylinders (storage tanks) and distribution delivery systems, and because a large number of gas cylinders are required to store the propellant (gas state), the system is in volume The utilization rate is not high. The output thrust range of a typical cold air propulsion system is 5mN to 250N. When the nozzle area ratio is 100, the specific impulse of nitrogen varies from 45s to 74s, depending on the thrust of the nozzle (thruster). size, because as the volume of the thruster decreases, the losses in the nozzle will increase
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[0030] A nitrogen-cooled micro-propulsion device of the present invention mainly includes a first propellant storage tank 1, a second propellant storage tank 2, a third propellant storage tank 3, a high-pressure inflation valve 4, a high-pressure sensor 5, and a high-pressure self-locking valve 6 , high pressure reducer 7, low pressure reducer 8, filter 9, thruster 10 and control circuit box 11, such as figure 1 As shown, the above-mentioned components are all installed on the installation partition 19, and the shape of the installation partition 19 is the same as the cross-sectional shape of the satellite that needs to install the micro-propulsion device. Installation and replacement, easy to replace and repair.
[0031] The micro propulsion device of the present invention adopts the total three propellant storage tanks of the first propellant storage tank 1, the second propellant storage tank 2, and the third propellant storage tank 3, which is convenient for the micro propu...
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The invention discloses a nitrogen cold air micro-propeller adopting three cylindrical propelling agent storage boxes, which comprises a first propelling agent storage box, a second propelling agent storage box, a third propelling agent storage box, a high pressure charging valve, a high pressure sensor, a high pressure latching valve, a high pressure reducer, a low pressure reducer, a filter, a thruster and a control line box. All the components are all installed on a mounting baffle plate. The nitrogen cold air micro-propeller is used for the microsatellite to carry out attitude control, and orbit maintenance and control. The micro-propeller uses the nitrogen as the propelling agent and is free from toxicity and pollution. The micro-propeller has simple structure, low mass, low power consumption and high reliability. The micro-propeller is arranged on the mounting baffle plate, is convenient to mount and replace, does not have too much contact and interference with other components of the satellite, and is convenient to replace and repair.
Description
technical field [0001] The invention belongs to the technical field of air-cooled micro-propulsion, and relates to a nitrogen-air-cooled propulsion device suitable for micro-satellites, in particular to a nitrogen-air-cooled micro-propulsion device using three cylindrical propellant storage tanks. Background technique [0002] Since October 4, 1957, when the former Soviet Union launched the first artificial earth satellite, Sputnik, satellites have experienced 50 years of development. With the continuous development of technology, people's functional requirements for satellites are becoming more and more complex. The volume and weight of satellites are gradually increasing, and the cost is getting higher and higher, so people turn their attention to micro-satellites. It is a contemporary trend to manufacture micro-satellites according to actual needs, and its purpose is mainly to save costs. The so-called small satellites refer to satellites with a total system weight of le...
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IPC IPC(8): F02K9/44B64G1/40
Inventor 汤海滨訾振鹏晋晓伟蒋建闫志勇邹宇马键
Owner BEIHANG UNIV