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US 12,601,277 B2Granted
Turbfan engine
AssigneeMTU Aero Engines AG
InventorsJens Truebenbach, Jan Von Frowein
Life of this patent
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Abstract
A turbofan engine with a low-pressure turbine module having no more than four stages and a fan coupled to the low-pressure turbine module via a gearbox, the turbofan engine having a maximum thrust of at least 70 kN and at most 300 kN, and the low-pressure turbine module (4.2) having a ratio of the exit annulus area to the inlet annulus area, Aout/Ain, of at least 2.2 and at most 3.3.
Claims14
A turbofan engine comprising:
- a low-pressure turbine module having no more than four stages;
- and
- a fan coupled to the low-pressure turbine module via a gearbox, the turbofan engine having a maximum thrust of at least 110 kN and at most 140 kN,
- and wherein the low-pressure turbine module has a ratio of the exit annulus area to the inlet annulus area, Aout/Ain, of at least 2.2 and at most 3.3,
- the fan having a diameter of at least 204 cm and at most 247 cm.
2 more elements
Dependencies are inferred from the claim text.