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
棚次 亘弘 成尾 芳博 丸田 秀雄 秋葉 鐐二郎 倉谷 健治
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.13-54, 1983-03

宇宙科学研究所は昭和51年から行ってきた液水/液酸ロケット開発における最終段階の試験としてステージ燃焼試験を行った。ステージ燃焼試験は最初に7トン級エンジンと小形厚肉タンクシステムを用いて, 次に10トン級エンジンを用いて行った。これらのエンジンは昭和55年と56年にそれぞれ確認試験を行っている。ステージ燃焼試験は昭和56年10月から昭和57年4月に3期に分けて8回実施し, ステージシステムが計画した性能で自立運転状態になることを確認した。また, ステージシステムの起動と停止シーケンス, およびシステムの予冷運転の方法が確立され, タンクの推進剤を過不足なく消費するためのPU制御も試みられ良好な結果が得られた。
著者
秋葉 鐐二郎 中村 巖
出版者
東京大学生産技術研究所
雑誌
生産研究 (ISSN:0037105X)
巻号頁・発行日
vol.9, no.3, pp.77-81, 1957-03-01
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.
著者
秋葉 鐐二郎 青木 嘉範 加勇田 清勇 藤井 篤之 永田 晴紀 佐鳥 新
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences (ISSN:13446460)
巻号頁・発行日
vol.51, no.591, pp.141-150, 2003-04-05
参考文献数
11
被引用文献数
1 2

The staged combustion hybrid rocket is under development by our research group since 1999. This hybrid rocket engine consists of two combustion chambers. The primary combustion chamber is the fuel tank itself filled with granular solid fuels. The fuel rich gas generated by the first stage combustion flows into the secondary combustion chamber, which is located in the bottom of the primary combustion chamber. The additional oxidizer is injected to the secondary combustion chamber in order to attain an optimal specific impulse by completing combustion. There are two types of the primary combustion. One is nicknamed as the incinerator type; the other is called the multi-grain type. This new type engine is featured with a wide range throttling capability and an extensive freedom in selecting the fuel material. This paper deals with the incinerator type. Presented are preliminary experiments as well as the systems description.