| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
Study and Development of Face-Contact, Bellows Mechanical Seal for Liquid Hydrogen Turbopump |
|
言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
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資源タイプ |
technical report |
| その他のタイトル |
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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
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 |
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航空宇宙技術研究所角田支所 |
| 著者所属 |
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航空宇宙技術研究所角田支所 |
| 著者所属 |
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航空宇宙技術研究所宇宙研究グループ |
| 著者所属 |
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航空宇宙技術研究所角田支所 |
| 著者所属 |
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航空宇宙技術研究所角田支所 |
| 著者所属 |
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宇宙開発事業団 |
| 著者所属（英） |
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en |
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Kakuda Branch Office, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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Kakuda Branch Office, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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Space Technology Research Group, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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Kakuda Branch Office, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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Kakuda Branch Office, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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National Space Development Agency of Japan(NASDA) |
| 出版者 |
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出版者 |
航空宇宙技術研究所 |
| 出版者（英） |
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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） |
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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 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0389-4010 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTR0653000 |
| レポート番号 |
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内容記述タイプ |
Other |
|
内容記述 |
レポート番号: NAL TR-653 |
naltr00653.pdf (7.7 MB)
