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Study and Development of Face-Contact, Bellows Mechanical Seal for Liquid Hydrogen Turbopump
https://jaxa.repo.nii.ac.jp/records/44909
https://jaxa.repo.nii.ac.jp/records/449097931740a-0843-42b1-9ffe-eba041c33f9e
名前 / ファイル | ライセンス | アクション |
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naltr00653.pdf (7.7 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Study and Development of Face-Contact, Bellows Mechanical Seal for Liquid Hydrogen Turbopump | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
その他のタイトル | ||||||
その他のタイトル | 液水ターボポンプ用メカニカルシールの試作研究 | |||||
著者 |
野坂, 正隆
× 野坂, 正隆× 鈴木, 峰男× 宮川, 行雄× 上絛, 謙二郎× 菊池, 正孝× 森, 雅裕× NOSAKA, Masataka× SUZUKI, Mineo× MIYAKAWA, Yukio× KAMIJO, Kenjiro× KIKUCHI, Masataka× MORI, Masahiro |
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著者所属 | ||||||
航空宇宙技術研究所角田支所 | ||||||
著者所属 | ||||||
航空宇宙技術研究所角田支所 | ||||||
著者所属 | ||||||
航空宇宙技術研究所宇宙研究グループ | ||||||
著者所属 | ||||||
航空宇宙技術研究所角田支所 | ||||||
著者所属 | ||||||
航空宇宙技術研究所角田支所 | ||||||
著者所属 | ||||||
宇宙開発事業団 | ||||||
著者所属(英) | ||||||
en | ||||||
Kakuda Branch Office, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
Kakuda Branch Office, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
Space Technology Research Group, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
Kakuda Branch Office, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
Kakuda Branch Office, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
National Space Development Agency of Japan(NASDA) | ||||||
出版者 | ||||||
出版者 | 航空宇宙技術研究所 | |||||
出版者(英) | ||||||
出版者 | National Aerospace Laboratory(NAL) | |||||
書誌情報 |
航空宇宙技術研究所報告 en : Technical Report of National Aerospace Laboratory TR-653 巻 653, p. 36, 発行日 1981-02 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The development of a 10-ton thrust liquid oxygen and liquid hydrogen (LOX and LH2) rocket engine is under way at the National Space Development Agency. In advance of the development of a liquid hydrogen turbopump, the National Aerospace Laboratory carried out study and development of a face-contact, bellows mechanical seal for a liquid hydrogen turbopump in co-operation with the National Space Development Agency. The present report describes the fundamental experiments of the mechanical seal (seal diameter:58.5mm) for liquid nitrogen and liquid hydrogen and the development of the mechanical seal for a liquid hydrogen turbopump (seal diameter:43.2mm). The developed mechanical seal has two features. One is a new type of seal nosepiece, which reduces the sealing face distortion at low temperature and high pressure. It results in a small amount of seal leakage and wear, and a low starting torque. The other feature is a new type vibration damper made of Teflon sheets. Th sheets are fixed in a nosepiece in order to prevent fluttering of the seal nosepiece during the rapid start or stop of a turbopump. Numerous tests were performed to clarify the seal performance. It was confirmed that the developed turbopump mechanical seal satisfied almost all requirements for application to a turbopump: seal leakage, wear life, reliability, starting torqe ,etc.. A long time test of 66 minutes in the condition (fluid pressure: 15 ata, rotating speed: 50,000 rpm, liquid hydrogen coolant flow: 0.4l/sec) was successful. The seal performances of the developed turbopump mechanical seal were as follows: liquid hydrogen leakage in steady state condition was 7.7~19.2cc/min. Wear of seal components after a long time run were 0~8μm in carbon face piece and 0.1μm (maximum) in chromium plate on rotating ring. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0389-4010 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: NALTR0653000 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NAL TR-653 |