Ground Experiment for On-Orbit Fluid Filling without Moving Component

On-orbit filling is one of the important technologies for long-period space exploration. Filling without moving components and with low mass loss has obvious advantage for on-orbit fillings, especially for small volume filling. For such purpose, a no-pump no-vent filling system was proposed, and the working principle of the filling and the criterion to end the filling in microgravity were equivalently verified on ground. In such filling system,...