Timeline for Why do many large turbofans have a gap (of turbine blades) between the LP turbine and HP turbine?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Feb 24, 2020 at 20:17 | answer | added | mins | timeline score: 7 | |
| Aug 30, 2017 at 5:10 | history | edited | DrZ214 | CC BY-SA 3.0 |
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| Aug 30, 2017 at 5:01 | vote | accept | DrZ214 | ||
| Aug 30, 2017 at 2:27 | answer | added | Daniel K | timeline score: 7 | |
| Aug 29, 2017 at 21:53 | history | tweeted | twitter.com/StackAviation/status/902650388729520129 | ||
| Aug 29, 2017 at 20:08 | comment | added | user3528438 | Because the fan runs at a much lower RPM than the compressors, so for a un-geared LP turbine to fan link the LP turbine needs to run at the same lower RPM. As a result the HP and LP turbine has a much difference in diameter so you need some space for the diameter transition. Filling the gap with either LP or HP blades doesn't worth the weight or complexity. Some turbofans has geared LP turbine to fan connection so the LP turbine runs at a much higher RPM hence a smaller diameter, then you won't see the gap on them. | |
| Aug 29, 2017 at 19:13 | history | edited | user14897 |
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| Aug 29, 2017 at 19:11 | answer | added | user14897 | timeline score: 13 | |
| Aug 29, 2017 at 18:56 | history | asked | DrZ214 | CC BY-SA 3.0 |