发明申请
WO2017127629A1 TURBOPUMP WITH A SINGLE PIECE HOUSING AND A SMOOTH ENAMEL GLASS SURFACE
审中-公开
TURBOPUMP具有单件式外壳和平滑珐琅玻璃表面
- 专利标题： TURBOPUMP WITH A SINGLE PIECE HOUSING AND A SMOOTH ENAMEL GLASS SURFACE
- 专利标题（中）： TURBOPUMP具有单件式外壳和平滑珐琅玻璃表面
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申请号： PCT/US2017/014259申请日： 2017-01-20
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公开(公告)号： WO2017127629A1公开(公告)日： 2017-07-27
- 发明人: MILLER, Timothy, J. , PINERA, Alex , BROOKS, Stephen, M. , APPLEBY, John, W. , LEONARD, Timothy, G.
- 申请人： FLORIDA TURBINE TECHNOLOGIES, INC.
- 申请人地址： 1701 Military Trail, Suite 110 Jupiter, Florida 33458 US
- 专利权人： FLORIDA TURBINE TECHNOLOGIES, INC.
- 当前专利权人： FLORIDA TURBINE TECHNOLOGIES, INC.
- 当前专利权人地址： 1701 Military Trail, Suite 110 Jupiter, Florida 33458 US
- 代理机构： CHRISTOPHER, John et al.
- 优先权： US62/286,213 20160122; US15/173,773 20160606
- 主分类号： F04D29/02
- IPC分类号： F04D29/02 ; F02K9/46 ; F04D29/22 ; F04D29/42 ; F04D29/62 ; B22F3/00
摘要：
A turbopump such as a liquid oxygen (LOX) turbopump for a liquid rocket engine is formed using a metal additive manufacturing process in which a single-piece impeller is formed within a single piece housing, the impeller being trapped within the single piece housing. The impeller is formed with an axial bore in which a shaft is inserted after the impeller and housing have been formed. The turbopump includes a protective coating that forms a reaction resistant surface on the base metal in areas of the base metal that are exposed to an oxidizer during pumping. The protective coating may be an enamel glass, a superalloy layer beneath an enamel glass layer, a composite layer of a mixture of enamel glass and superalloy, a composite mixture of oxide and superalloy, or a composite layer of a mixture of enamel glass, superalloy, and oxide.
