The invention relates to the technical field of on-orbit filling, and discloses a storage tank, a spacecraft and a storage tank using method.The storage tank comprises a cylinder body and end sockets, the cylinder body comprises at least two cylinder sections, the cylinder sections are sequentially nested in the axial direction of the cylinder body, the end sockets comprise the first end socket and the second end socket, and the first end socket and the second end socket seal the two ends of the cylinder body respectively; the sealing head and the barrel body enclose to form a containing cavity, and at least part of the barrel section can stretch out and draw back in the axial direction so as to change the size of the storage box. On one hand, in the launching process, the volume of the storage box can be reduced through shrinkage of the barrel section, so that the launching envelope of a spacecraft is reduced, and the space utilization rate in the fairing is increased; and on the other hand, after the spacecraft is in orbit, propellant is injected into the containing cavity, the barrel section can stretch out under the pressure effect of the propellant, and therefore the large-capacity containing cavity is provided for the propellant, and when the volume of the propellant changes, the barrel section can stretch out and draw back automatically, so that the volume of the containing cavity is matched with the volume of the propellant.

    本发明涉及在轨加注技术领域,公开了贮箱、航天器及贮箱使用方法,贮箱包括筒身和封头,筒身包括至少两个筒段,各个筒段沿着筒身的轴向依次嵌套设置,封头包括第一封头和第二封头,第一封头和第二封头分别封闭筒身的两端,封头和筒身包围形成容腔,其中,至少部分的筒段能够沿着轴向伸缩,以改变贮箱的体积。一方面,在发射过程中,贮箱能够利用筒段的收缩减小自身的体积,从而缩小航天器的发射包络,提高整流罩内部的空间利用率;另一方面,航天器在轨之后,向容腔内加注推进剂,筒段能够在推进剂的压力作用下伸出,从而为推进剂提供大容量的容腔,并且在推进剂体积发生变化时,筒段能够自动地伸缩,使容腔的体积和推进剂体积相匹配。


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    Title :

    Storage tank, spacecraft and storage tank using method


    Additional title:

    贮箱、航天器及贮箱使用方法


    Publication date :

    2025-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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