著者
棚次 亘弘 成尾 芳博 倉谷 健治 秋葉 鐐二郎 岩間 彬 TANATSUGU Nobuhiro NARUO Yoshihiro KURATANI Kenji AKIBA Ryojiro IWAMA Akira
出版者
宇宙科学研究所
雑誌
宇宙科学研究所報告. 特集: 液水/液酸エンジンの開発研究報告 (ISSN:02859920)
巻号頁・発行日
vol.6, pp.55-106, 1983-03

The Institute of Space and Astronautical Science (ISAS) has developed the two thrust level of LH_2/LOX propulsion system; one is the 7-ton thrust level one and the other is the 10-ton thrust level one. The 7-ton thrust level engine was aimed at usimed at using for the second stage of the Mu vehicle. And the 10-ton thrust level engine is planned to back up the H-1 project being performed by the National Space Development Agency (NASDA). The both engines are the gas generator cycle which consists of the tubular wall thrust chamber, the "ISAS Arrangement" turbopump, the "reverse-flow" type gas generator and the solidpropellant turbine spinner. The development of the 7-ton thrust level engine has started in 1976. By 1980 have almost finished the development tests of its major components. In early 1980 the engine system has been integrated and then the verification tests have been carried out. On the other hand, the development study of the 10-ton thrust level engine started in 1979. In midyear 1981 the engine system has been completed. The both engines were combined with the battle-ship type of tank system, and stage firing tests were carried out successfully from Sep. 1981 through Apr. 1982. The 7-ton thrust level engine worked well within the range from 78% to 1l8% of its rated power. And the 10-ton thrust one worked well within the range from 75% to ll3%. In the present paper, an outline of the LH_2/LOX engine systems developed in ISAS, the progress in the establishing of an operation of engine systems and the performance capability of two systems are described.
著者
棚次 亘弘 成尾 芳博 倉谷 健治 秋葉 鐐二郎 岩間 彬
出版者
宇宙航空研究開発機構
雑誌
宇宙科学研究所報告. 特集 (ISSN:02859920)
巻号頁・発行日
vol.6, pp.55-106, 1983-03

The Institute of Space and Astronautical Science (ISAS) has developed the two thrust level of LH_2/LOX propulsion system; one is the 7-ton thrust level one and the other is the 10-ton thrust level one. The 7-ton thrust level engine was aimed at usimed at using for the second stage of the Mu vehicle. And the 10-ton thrust level engine is planned to back up the H-1 project being performed by the National Space Development Agency (NASDA). The both engines are the gas generator cycle which consists of the tubular wall thrust chamber, the "ISAS Arrangement" turbopump, the "reverse-flow" type gas generator and the solidpropellant turbine spinner. The development of the 7-ton thrust level engine has started in 1976. By 1980 have almost finished the development tests of its major components. In early 1980 the engine system has been integrated and then the verification tests have been carried out. On the other hand, the development study of the 10-ton thrust level engine started in 1979. In midyear 1981 the engine system has been completed. The both engines were combined with the battle-ship type of tank system, and stage firing tests were carried out successfully from Sep. 1981 through Apr. 1982. The 7-ton thrust level engine worked well within the range from 78% to 1l8% of its rated power. And the 10-ton thrust one worked well within the range from 75% to ll3%. In the present paper, an outline of the LH_2/LOX engine systems developed in ISAS, the progress in the establishing of an operation of engine systems and the performance capability of two systems are described.
著者
岩間 彬 青柳 鐘一郎 祖父江 照雄 山崎 毅六
出版者
東京大学宇宙航空研究所
雑誌
東京大学宇宙航空研究所報告 (ISSN:05638100)
巻号頁・発行日
vol.2, no.2, pp.713-716, 1966-06

固体ロケットモータにおいては,点火器が燃焼室構造の重要な要素となっている.その幾何学的形状とケース材が燃焼室内のガスに与えるじょう乱の大きさによっては,点火器自身が音響振動を増幅するきっかけをつくり,不安定燃焼に成長する原因となり得る.この研究は,SSR1/4モータ(グレイン100mmφ×560mmL)に,管状点火器とかご型点火器の2種を装備して,地上燃焼実験を行ない,モータの燃焼安定性に主眼をおいて,両者を比較したものである.管状点火器は,軟鋼またはアセチルセルローズ製ケースに肌色火薬とMAK-54を充填したもので,フォアヘッド側自由流路にとび出している.ー方かご型点火器は,フォアヘッド鏡板の外側に取付けられ,着火後,未燃固型物がノズルを通過するおそれは仝くないという特長をもっている.前者は,ノズルスロートを未分解のケース材の一部が通過するとき,燃焼ガスにかなり大きいショックを付与し,燃焼圧カー時間曲線に小スパイクを生じ振動燃焼を起こす場合もある.これに対し,後者はこのようなトラブルがなく,モータの燃焼安定性を高めている.資料番号: SA0124890000
著者
岩間 彬 青柳 鐘一郎 木村 元雄 井原 博之
出版者
一般社団法人 日本エネルギー学会
雑誌
燃料協会誌 (ISSN:03693775)
巻号頁・発行日
vol.51, no.2, pp.79-95, 1972-02-20 (Released:2011-02-23)
参考文献数
31

From a view point of safety measure against the fire hazard involved with aircraft crash or ditch and singular hydrodynamical fluid motions in space flight and refueling with liquid rocket tankage, feasibility of gelled hydrocarbon fuels and propellants is discussed. It is concluded that O/W (oil-in-water) type gelled hydrocarbons are most promising as the safety fuels, resulting from a comparison in the rheological and combustion properties with the other gelled fuels; slurry, scaffold and thickened (highly viscous) ones. Physical properties and flammability of very high internal phase ratio gelled JP-4 and kerosene, ranged 96 to 99 vol% fuel content, and of N2H4/JP-4 gelled propellant developed by ISAS, Univ. of Tokyo and Mitsubishi Oil Company are described.
著者
棚次 亘弘 成尾 芳博 長友 信人 岩間 彬 秋葉 鐐二郎 倉谷 健治
出版者
宇宙航空研究開発機構
雑誌
東京大学宇宙航空研究所報告 (ISSN:05638100)
巻号頁・発行日
vol.16, no.2, pp.859-891, 1980-05

推力7トン級液水/液酸ロケットエンジン用ターボポンプを駆動するガスジェネレーターの設計および試験を昭和52年から実施し,その開発を完了した.このガスジェネレーターはリバースフロー型のものであり,撹拌リング付の球形燃焼室と12個の均一混合比型の同軸インジェクターおよびスタートバルブから構成されている.8回のガスジェネレーター単体での試験および10回のターボポンプとの組合せ試験によって,性能および機能の確認を行った.インジェクター,燃焼室およびタービン部に焼損は認められず,燃焼および混合が良好に行われているものと思われる.現在までの総燃焼時間は204秒である.ここでは,東大宇宙研において開発したガスジェネレーターの設計諸元,試験設備および試験結果を報告する.