| 词条 | RL60 |
| 释义 |
|image= |image_size= |caption= |name=RL60 |country_of_origin= United States |manufacturer=Pratt & Whitney |purpose= |type=liquid |fuel=LH2 |oxidiser=LOX |mixture_ratio= 4.5 to 6.2 |capacity= |weight= 1,100 lb |thrust(SL)= 200-250 kN (50,000-65,000 lbf) |specific_impulse_vacuum= {{convert|465|isp}} |thrust_to_weight=59 |cycle=expander }} The RL60 is a cryogenic rocket engine under development by Pratt & Whitney. The design is a high energy LH2/LOX expander cycle, capable of multiple restarts in space. In 2003, Pratt & Whitney Space Propulsion had 90% of the work completed for the new RL60 replacement of the RL10 engine.[1] The RL60 is a cryogenic upper stage engine, designed to produce 60,000 pounds of thrust with a specific impulse of 465 seconds to meet the evolving needs of expendable launch requirements or human-rated missions. The RL60 was to be built and tested domestically with key components to be provided by four international industry strategic suppliers; Volvo Aero of Sweden (Regen cooled nozzle), Ishikawajima-Harima Heavy Industries (IHI) of Japan (Fuel Turbopump), Techspace Aero of Belgium (Fuel Inlet and LOX control valve) and Chemical Automatics Design Bureau (CADB) of Russia (LOX Turbopump). References1. ^{{cite press|title=Pratt & Whitney's RL60 Moves Closer to Completion|publisher=Pratt & Whitney|date=April 22, 2003|accessdate=June 1, 2012|url=http://www.pw.utc.com/media_center/press_releases/2003/04_apr/4-22-2003_4912521.asp|deadurl=yes|archiveurl=https://web.archive.org/web/20120323112057/http://www.pw.utc.com/media_center/press_releases/2003/04_apr/4-22-2003_4912521.asp|archivedate=March 23, 2012|df=}} External links
2 : Rocket engines using hydrogen propellant|Rocket engines using the expander cycle |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。