PRATT & WHITNEY RL-10 ROCKET ENGINE : 無料・フリー素材/写真
PRATT & WHITNEY RL-10 ROCKET ENGINE / jurvetson
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | First developed in 1959, the Pratt & Whitney RL10 was the first hydrogen/oxygen engine, yet it is still the most fuel efficient engine ever made, and the highest ISP engine flying today. It has carried spacecraft the moon and the sun and every planet in our solar system and beyond (Mariner, Pioneer, Voyager, Cassini, Mars Viking, Helios solar probe, Lunar Surveyor, Venus 2, LCROSS). It powers the second stage of the Saturn, Atlas V, Titan and Delta III and IV.The bell on the right is actually composed of 360 pipes that route the super-chilled hydrogen fuel down and back before combustion to keep the nozzle from melting (regenerative cooling). They are brazed together with pure silver on a bell-shaped mandrel.This engine uses a clever expander cycle with gear-coupled fuel and oxidizer turbo pumps, a design that has not been used on any other hydrogen engine. The phase change of the hydrogen fuel powers both the fuel and oxidizer cyro pumps.A Pratt & Whitney employee claimed that this unit was the second one built. It may be the only original RL10 in private circulation. More details below.Arrival video |
| 撮影日 | 2010-09-17 16:23:52 |
| 撮影者 | jurvetson , Los Altos, USA |
| タグ | |
| 撮影地 | |
| カメラ | Canon EOS 5D Mark II , Canon |
| 露出 | 0.025 sec (1/40) |
| 開放F値 | f/3.2 |
| 焦点距離 | 16 mm |