摘要:
[Problem] A heat exchanger generally employs a method for supplying liquid having critical pressure or higher or high pressure in order to suppress boiling. However, gas obtained by a evaporator behind the heat exchanger has relatively low pressure, and therefore supplying the liquid to the heat exchanger requires a system for converting an energy form of the obtained gas into kinetic energy or electrical energy, and increasing the pressure by a mechanical pump. Thus, the complicated system involving an efficiency loss is only solution, and it is difficult to achieve simplification of a system or reduction in the weight of a propellant supply device in a moving body, specifically, a flying object. [Solution] To provide a device of the present invention that pressurizes and supplies raw fluid as a material of gas by use of the relatively low pressure gas itself obtained by vaporizing liquid without requiring conversion of an energy form of the gas into kinetic energy or electrical energy, and to provide a system and a method that uses the device to supply propellant in a moving body, specifically, a flying object.
摘要:
Ein erfindungsgemäßer Wärmetauscher dient einem Kühlen von Treibstoff für ein Triebwerk mittels eines Kühlstroms. Er umfasst eine Hauptstromleitung (11) zum Durchleiten des zu kühlenden Treibstoffs und eine Nebenstromleitung (12) zum Durchleiten des Kühlstroms. Die Nebenstromleitung zweigt dabei von der Hauptstromleitung ab. Ein erfindungsgemäßes Versorgungssystem (20) für ein Triebwerk mit Treibstoff umfasst einen Tank (21), ein Förderleitungssystem (22a, 22b) und einen oder mehrere erfindungsgemäße Wärmetauscher (10, 10') gemäß einem der vorhergehenden Ansprüche umfasst. Ein erfindungsgemäßes Verfahren umfasst ein Einleiten von Treibstoffs in eine Hauptstromleitung (11) eines Wärmetauschers (10, 10'), ein Abzweigen eines Kühlstroms von der Hauptstromleitung in eine Nebenstromleitung (12) des Wärmetauschers, ein Absenken einer Temperatur des Kühlstroms in der Nebenstromleitung und ein Kühlen mindestens eines Abschnitts (11b) der Hauptstromleitung mit dem Kühlstrom in der Nebenstromleitung.
摘要:
The subject of the invention is a device for starting a turbopump (1) of a rocket motor (2) of an aircraft comprising a turbine engine for propelling the aircraft and a rocket motor, which comprises a pneumatic supply of compressed air to a turbine (1a) of the turbopump, this compressed air being tapped from a tapping (4) on a compressor stage (6a) of the aircraft propulsion turbine engine (5) upstream of the combustion chamber (7) of said turbine engine. It applies notably to an aircraft of the space airplane type.
摘要:
A control system for controlling the operation of a plurality of micro thrusters arranged in a plurality of parallel horizontal rows and a plurality of parallel vertical columns, the control system requires a power source, a first plurality of power lines connected to the power source and coupled to at least one micro thruster of the plurality of micro thrusters in a horizontal row of the plurality of parallel horizontal rows, a second plurality of power lines connected to the power source and coupled to at least one micro thruster of the plurality of micro thrusters in a vertical column of the plurality of parallel vertical columns, and a control unit coupled to the power source to control activation of the first plurality of power lines and activation of the second plurality of power lines.
摘要:
A compact rocket engine with advanced swirl combustion can generate vacuum thrust in the 500 1b f to 100,000 1b f range. The rocket engine (10) includes a feed system (21), combustor assembly (12), swirl generator (14) and nozzle (16). The feed system (21) delivers the oxidizer and fuel (18,20) to the combustor assembly (12) in the proper phase suitable for use with the swirl generator (14), which is positioned within the combustor assembly (12). This causes a highly turbulent three-dimensional swirling flowfield produced for rapid and efficient mixing and burning of the fuel/oxidizer combustion products, which are expanded through the nozzle (16) to produce thrust. The aerothermochemical processes are extremely efficient, and consequently produce nearly ideal thrust levels. Swirl enhanced combustion significantly reduces combustor length, weight, complexity and cost, yet provides high propulsion efficiencies and wide rocket engine (10) throttling operability. In one embodiment, the rocket engine is integrated into a dual-throat, expansion/deflection rocket engine to provide deep throttleability with high Isp.