LE-9
The LE-9 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in an expander bleed cycle. Two or three will be used to power the core stage of the H-3 launch vehicle.[1][2][5]
| Country of origin | Japan |
|---|---|
| Designer | JAXA |
| Manufacturer | Mitsubishi Heavy Industries |
| Application | sustainer engine |
| Associated L/V | H3 Launch Vehicle |
| Predecessor | LE-7A |
| Status | In Development |
| Liquid-fuel engine | |
| Propellant | Liquid oxygen / Liquid hydrogen |
| Mixture ratio | 5.9 |
| Cycle | Expander Bleed cycle |
| Configuration | |
| Chamber | 1 |
| Nozzle ratio | 37 |
| Performance | |
| Thrust (vac.) | 1,471 kN (331,000 lbf) |
| Thrust-to-weight ratio | 62.50 |
| Chamber pressure | 10.0 MPa (1,450 psi) |
| Isp (vac.) | 426 s (4.18 km/s) |
| Dimensions | |
| Length | 3.8 m |
| Dry weight | 2.4 t (5,300 lb) |
| Used in | |
| H3 Launch Vehicle core stage. | |
| References | |
| References | [1][2][3][4] |
References
- Atsumi, Masahiro; Yoshikawa, Kimito; Ogawara, Akira; Onga, Tadaoki (December 2011). "Development of the LE-X Engine" (pdf). MHI Technical Review. 48 (4): 36–43. Retrieved 2015-07-08.
- Kumada, Nobuhiko; Ogawara, Akira; Manako, Hiroyasu; Onga, Tadaoki; Sunakawa, Hideo; Kurosu, Akihide; Iizuka, Nobuyuki; Noda, Keiichiro; Okita, Koichi (2010-07-26). "Highly Reliable Design Approaches for Next Booster Engine LE-X" (pdf). 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. 46 (AIAA 2010-6853). Retrieved 2015-07-08.
- Watanabe, Daiki; Imai, Kazuhiro; Ogawara, Akira; Yamanishi, Nobuhiro; Neghishi, Hideyo; Kawatsu, Kaname; Kurosu, Akihide; Noda, Keiichiro (2011-07-31). "Application of High Fidelity Simulation to LE-X Engine Development" (pdf). 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. 47 (AIAA 2011-5930). Retrieved 2015-07-08.
- Daiki, Watanabe; Manako, Hiroyasu; Onga, Tadaoki; Tamura, Takashi; Ikeda, Kazufumi; Isono, Mitsunori (December 2016). "Combustion Stability Improvement of LE-9 Engine for Booster Stage of H3 Launch Vehicle" (pdf). MHI Technical Review. 53 (4): 28–35. Retrieved 2017-06-29.
- "2020年：H3ロケットの目指す姿" [2020: H3 projected debut date] (pdf) (in Japanese). JAXA. 2015-07-08. Retrieved 2015-07-08.
External links
| Liquid fuel |
|  | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solid fuel |
| |||||||||||
| ||||||||||||
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.