Low pressure ratio fan engine having a dimensional relationship between inlet and fan size
US11781505B2 · kind B2 · utility
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99References
30Claims
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Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Aug 21, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/96
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine assembly includes, among other things, a fan section including a fan, the fan including a plurality of fan blades, a diameter of the fan having a dimension D that is based on a dimension of the fan blades, a turbine section including a high pressure turbine and a low pressure turbine, the low pressure turbine driving the fan, a nacelle including an inlet portion forward of the fan, a length of the inlet portion having a dimension L, and a dimensional relationship of L/D between 0.30 and 0.40.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.