| 摘要 |
The purpose of the present invention is to provide a pressure calibrating apparatus for a rocket turbo pump engine. The provided pressure calibrating apparatus is capable of simplifying the pressure calibration of the engine, so that the number of combustion tests required for the pressure calibration, and, as, a result, the reduction of the service life of the engine can be minimized, wherein the pressure calibration is to reduce thrust errors. According to the present invention for the effect above, the pressure calibrating apparatuses for the rocket turbo pump engine calibrate pressure, are respectively installed on a main oxidizer line guiding an oxidizer to a main combustor, on a main fuel line guiding fuel to the main combustor, on an auxiliary oxidizer line guiding the part of the oxidizer to a gas generator, and on an auxiliary fuel line guiding the part of the fuel to the gas generator, and comprise: calibrating valve units installed on the respective lines, and calibrating pressure at the rear ends thereof by varying the opening degrees thereof for the respective lines depending on the pressure at the rear ends; and fixing units installed at the calibrating valve units, and fixing the opening degrees when the calibration of the pressure at the rear ends is finished. |
