METHOD AND A CIRCUIT FOR REGULATING A ROCKET ENGINE

摘要

The invention relates to the field of rocket engines, and in particular to a method and a circuit for regulating a rocket engine (1) comprising at least one combustion chamber (3) and a first liquid propellant feed circuit (10) with a first pump (12) for pumping a first liquid propellant and a first turbine (14) for actuating the first pump (12), a first feed valve (15), and a regulator device for regulating the first turbine (14). In the regulation method and circuit, an opening command (DVCH) for opening the first feed valve (15) is calculated from an external command (Cext) in application of an open loop control relationship; a command for the regulator device of the first turbine (14) is calculated on the basis of said external command (Cext) and at least one feedback value, in application of a closed loop control relationship; and the first feed valve (15) and the regulator device of the first turbine (14) are controlled in application of the respective commands.

主权项

1. A method of regulating a rocket engine having at least one liquid propellant, said rocket engine comprising at least one combustion chamber and a first liquid propellant feed circuit with a first pump for pumping a first liquid propellant and a first turbine for actuating the first pump, a first feed valve, and a regulator device for regulating the first turbine, the regulation method comprising the following steps:
calculating an opening command for opening the first feed valve from an external command, in application of an open loop control relationship; calculating a command for the regulator device of the first turbine on the basis of said external command and of at least one feedback value, in application of a closed loop control relationship; and controlling the first feed valve of the combustion chamber and the regulator device of the first turbine in compliance with the respective commands.