Editing J-2X (Engine)
Jump to navigation
Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
| Latest revision | Your text | ||
| Line 1: | Line 1: | ||
| − | The '''J-2X''' is a modern [[ | + | The '''J-2X''' is a modern [[expander cycle]], [[bi-propellant]] [[rocket engine]], planned for use in the [[Ares I]] and [[Ares V]] [[launch vehicles]]. It consumes [[liquid hydrogen]] and [[liquid oxygen]]. It has its origin in the [[J-2 (Engine)|J-2]] rocket engines used by the [[Saturn Ib]] and [[Saturn V]] launchers. It is produced by [[Rocketdyne]]. |
| − | + | ==Differences to the J-2== | |
[[Image:J2X_schematic.gif|thumb|right|Schematic of the J-2X]] | [[Image:J2X_schematic.gif|thumb|right|Schematic of the J-2X]] | ||
| − | While the J-2 was a [[gas-generator cycle]] or open cycle rocket engine, the '''J-2X''' uses so called [[tap-off cycle]] for powering its [[turbopumps]]. In such a cycle, a small part of the hot exhaust gases from the [[combustion chamber]] is used for powering the two turbopump assemblies. these turbopumps are connected in series with a hot-gas duct. After passing the oxidizer turbopump, the hot gases are directed into the nozzle exhaust stream. | + | While the J-2 was a [[gas-generator cycle]] or open cycle rocket engine, the '''J-2X''' uses so called [[tap-off cycle]] for powering its [[turbopumps]]. In such a cycle, a small part of the hot exhaust gases from the [[combustion chamber]] is used for powering the two turbopump assemblies. these turbopumps are connected in series with a hot-gas duct. After passing the oxidizer turbopump, the hot gases are directed into the nozzle exhaust stream. |
==References== | ==References== | ||
| Line 10: | Line 10: | ||
*[http://www.nasa.gov/pdf/187393main_j-2x_fact_sheet.pdf J-2X fact sheet from NASA (2.9 MB)] | *[http://www.nasa.gov/pdf/187393main_j-2x_fact_sheet.pdf J-2X fact sheet from NASA (2.9 MB)] | ||
| − | [[Category: | + | [[Category:rocket engines]] |
| − | |||
{{Stub}} | {{Stub}} | ||