Structural layout of a light and small rocket engine

Abstract

The invention relates to the technical field of spacecraft propulsion systems, in particular to a structural layout of a light and small rocket engine, which can realize a compact engine structure and is beneficial to product modularization and integration. According to the engine structure layout of the present invention, it includes a head shell module, a throttle ring, a propellant control valve, an injector core, a nozzle pipe, a combustion chamber pressure nozzle, valve fasteners, an internal leakage prevention sealing ring, and an anti-inner leakage sealing ring. Leaky sealing ring. The invention has the following advantages: 1) The engine product has a compact structure, which is conducive to reducing the envelope size of the engine; 2) The number of engine parts is small, which is conducive to improving the inherent reliability of the engine; 3) The throttle ring is easy to disassemble and assemble, which is convenient for engine flow resistance Adjustment; 4) The structure is properly hollowed out, which is conducive to weight reduction and heat protection of engine products.

Description

technical field [0001] The invention relates to the technical field of spacecraft propulsion systems, in particular to a structural layout of a light and small rocket engine. Background technique [0002] The engine is the heart of spacecraft such as launch vehicles, satellites, and missiles, and provides power for the spacecraft to change its orbit and attitude. With the development of aerospace technology, higher requirements are put forward for the miniaturization of rocket engines. Light and small rocket engines can not only reduce the total weight of the spacecraft, increase the payload of the spacecraft, but also optimize the overall design of the spacecraft, improve the The performance and technical level of spacecraft are of great significance. For example, the application of light and small rocket engines in the field of missile weapons and micro space vehicles can greatly promote the technological progress of civil and military space vehicles. [0003] The structu...

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Problems solved by technology

[0004] Looking at the current state of technology at home and abroad, there are various structural layout forms of light and small rocket engines, and there are many successful cases, but generally have the following shortcomings: 1) The layout structure is not compact, and the structural space utilization rate is low; 2) The engine section When adjusting the orifice plate, it is necessary to repeatedly disassemble and assemble the valve

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