Invention Grant
- Patent Title: Aero engine flow rate
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Application No.: US16741005Application Date: 2020-01-13
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Publication No.: US10882633B2Publication Date: 2021-01-05
- Inventor: Richard G. Stretton , Michael C. Willmot
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1820930.4 20181221
- Main IPC: F02C7/04
- IPC: F02C7/04 ; B64D33/02 ; B64D27/12 ; F02K3/06

Abstract:
A gas turbine engine of an aircraft includes: an engine core having a turbine including a lowest pressure rotor stage, a turbine diameter, a fan including a plurality of fan blades extending from a hub, an annular fan face at a leading edge of the fan; wherein a downstream blockage ratio of: the turbine diameter at an axial location of the lowest pressure rotor stage a distance from a ground plane to the wing is in the range from 0.2 to 0.3.
Information query
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