TWO-PULSE GAS GENERATOR AND PROPELLANT COMBUSTION SURFACE POSITION MEASURING METHOD

• Main Authors: NISHIKAWA SEIKI, MIHARA CHIYAKO, YASHIRO KATSUNORI, SUZUKI YU
• Format: Patent
• Language: English; Japanese
• Published: 17.10.2019
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; PHYSICS; TESTING; WEAPONS

To estimate consumption of a first solid propellant with higher accuracy in a two-pulse gas generator for igniting a second solid propellant after the first solid propellant is completely combusted.SOLUTION: A first solid propellant is formed in a columnar shape, one end surface is exposed to a combustion space, and surfaces other than the end surface are covered by a separating membrane so that a combustion surface moves in a predetermined first direction. A position of the combustion surface in the first direction is detected by a position sensor device for performing constant measurement or fixed point measurement. Consumption of the first solid propellant is estimated on the basis of a detected result.SELECTED DRAWING: Figure 1C 【課題】第１固体推進薬が燃焼し尽くしてから第２固体推進薬に点火する２パルスガスジェネレータにおいて、第１固体推進薬の消費量を、より高い精度で推定する。【解決手段】燃焼面が所定の第１方向に移動するように、第１固体推進薬を柱状形状に構成し、一方の端面を燃焼空間に露出し、この端面以外の表面を隔膜で覆う。燃焼面の第１方向における位置を、常時計測または定点計測を行う位置センサ装置で検知する。検知した結果に基づいて、第１固体推進薬の消費量を推定する。【選択図】図１Ｃ