To prevent aged deterioration of a structure for making the volume variable of a propellant space and a gas space in a propellant tank for supplying a propellant to a thruster of an artificial satellite.SOLUTION: A propellant supply device includes: a propellant tank 3 in which a propellant space 11 and a gas space 13 are formed inside; a gas generator including a solid gas generating agent for generating a gas when ignited; a gas pipe 7 for feeding the gas generated in the gas generator to the gas space 13; and a propellant pipe 9 for supplying the propellant stored in the propellant space 11 to a thruster. The propellant tank 3 includes: a metal bellows 15 which is provided in the propellant tank 3, and in which a base end part is mounted with respect to an inner surface of the propellant tank 3; and a closing part 17 mounted at a tip part so as to close an opening of the tip part of the bellows 15, and capable of moving in the axial direction of the bellows 15 by the telescopic motion of the bellows 15. The closing part 17 serves as a boundary between the propellant space 11 and the gas space 13.SELECTED DRAWING: Figure 2

    【課題】人工衛星のスラスタへ推進薬を供給するための推進薬タンク内の推進薬空間とガス空間の体積を可変にするための構造の経年劣化を防止することにある。【解決手段】推進薬供給装置は、推進薬空間11とガス空間13が内部に形成されている推進薬タンク3と、点火されるとガスを発生する固体ガス発生剤を有するガス発生器と、ガス発生器で発生したガスをガス空間13へ送るガス管7と、推進薬空間11に蓄えられた推進薬をスラスタへ供給する推進薬管9とを備える。推進薬タンク3は、推進薬タンク3内に設けられ、基端部が推進薬タンク3の内面に対して取り付けられた金属製のベローズ15と、ベローズ15の先端部の開口を塞ぐように先端部に取り付けられ、ベローズ15の伸縮によりベローズ15の軸方向に移動可能な閉塞部17とを備える。閉塞部17は、推進薬空間11とガス空間13との境界となる。【選択図】図2


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    Title :

    PROPELLANT SUPPLY DEVICE


    Additional title:

    推進薬供給装置


    Contributors:

    Publication date :

    2021-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64G Raumfahrt , COSMONAUTICS



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