The electric-pump-feeding machine is a bipropellant rocket engine in which the fuel pump is electrically powered, and so all the input propellants are directly burned in the main combustion chamber, and nothing is routed to the pump drive. This differs from the traditional rocket engine design, in which the pump is driven by a portion of the input propellant.
An electric cycle machine uses an electric pump to suppress the propellant from a low pressure fuel tank to the combustion chamber of high pressure, generally 0.2 to 0.3 MPa (29 to 44 psi) to 10 to 20 MPa (1,500 to 2,900 psi). This pump is powered by an electric motor, with electricity from the battery bank.
In January 2018, the only rocket engine that uses an electric propellant pump system is the Rutherford engine, nine of which are Electron rocket power, and an electrically charged rocket engine rocket used in Ventions' sound rocket. On January 21, 2018, Electron is the first electric pump rocket to reach orbit.
Compared to turbo-pumped rocket cycles such as multilevel burning and gas generators, electric cycle engines have worse performance due to additional battery mass, but may have lower manufacturing and manufacturing costs due to their mechanical simplicity, lack of high temperature turbomachinery, and ease of control. In contrast, the electric cycle engine may have a much better performance than a pressure-feeding rocket engine and a solid-propellant rocket motor.
Video Electric-pump-fed engine
See also
- Tap-burn cycle
- Release cycle
- Gas generator cycle
- Pressure-feeding machine
- Rocket engine
- Solid propellant rockets
- Stages of combustion cycle
Maps Electric-pump-fed engine
References
Source of the article : Wikipedia
0 Comments