국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Axial Thrust Balancing of the LE-7 LOX Turbopump
저자	Satoshi HASEGAWA, Takashi SHIMURA
Keyword	rocket engine; LE-7; turbopumps; axial thrust; thrust balancing
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr01201.pdf?id=NALTR0001201
보고서번호	NAL TR-1201
발행년도	1993.5
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	A self-balancing type axial-thrust balancing system referred tod,balancing holes were made directly connecting the balancing chamber and the main impeller inlet.The dimefer of the balancing holes was determined by flow-coefficient test results of rotating holes.In the second method,grooves were made on the casing wall facing the main impeller front shroud.As a result,proper axial clearance was confirmed,making the development of a reliable axial-thrust balancing-system for the LE-7 LOX turbopump prototype possible.