Electric pump inner cavity pressure and temperature detection device for rocket engine

The utility model provides an electric pump inner cavity pressure and temperature detection device for a rocket engine. The electric pump inner cavity pressure and temperature detection device comprises a pump head which is coaxially and integrally installed with an electric pump. A shielding structure is arranged between the stator and the rotor of the electric pump; the rear end cover of the electric pump and the shielding structure are provided with holes corresponding in position and are provided with temperature and pressure measuring points; the opening is communicated with a leading-out pipeline, and the leading-out pipeline is connected with a pressure sensor and a temperature sensor. In the high-rotating-speed rotating process of the electric pump, real-time detection of the temperature and the pressure in the cavity is achieved, and a series of irreversible faults such as decomposition explosion caused by too high heating temperature of media in the cavity or leakage caused by failure of a sealing s