PATENT CLAIM ANALYSIS

Application Number: 15745944
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["060", "230000"]

Abstract:
The invention relates to an aircraft comprising a fuselage ( 1 ), which is propelled by a turbine engine with two coaxial fans, namely an upstream fan ( 7 ) and a downstream fan ( 8 ), driven by two contra-rotating rotors ( 5, 6 ) of a power turbine ( 3 ). The two fans ( 7, 8 ) and the turbine ( 3 ) are integrated into a nacelle ( 14 ) which projects downstream from the fuselage ( 1 ) and through which air flows. According to the invention, at least one of the fans ( 7, 8 ) of the aircraft and, in particular, the downstream fan ( 8 ) comprises variable-spacing blades, and at least one stator-forming variable-spacing blade ring ( 25 ) in the aircraft is placed upstream of the upstream fan ( 7 ). The variable-spacing stator blades ( 25 ) and the variable-spacing blades of the downstream fan ( 8 ) are mutually configured to direct the air flow in a first mode in which the air flows through the nacelle ( 14 ) from upstream to downstream and in a second mode in which the air is pushed back upstream through the nacelle ( 14 ).

Claim (Index 1):
Aircraft comprising a fuselage and being propelled by a turbine engine with two coaxial fans, respectively upstream and downstream, driven by two contra-rotating rotors of a power turbine, the two fans and the turbine being integrated in a nacelle downstream of the fuselage, in the extension thereof, and in which an air flow circulates, which aircraft is characterised in that at least one of the fans, and in particular the downstream fan, comprises variable-pitch vanes and wherein at least one ring of variable-pitch vanes forming a stator is placed upstream of the upstream fan, the variable-pitch stator vanes and the variable-pitch vanes of the downstream fan being mutually configured to orient the air flow in a first mode where the air circulates in the nacelle in the upstream to downstream direction and in a second mode where the air is pushed back upstream through the nacelle.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 2.95946
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15745661', '11395152', '15745704', '10982477', '14418670']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7679237622844133
- 35 USC 102 Novelty (BERT): 0.5156354250780749
- Combined Prediction Score: 0.7426949285637795
- Mean Citation Score: 304.1700360000001
- Max Citation Score: 357.08908
- Similarity Product: 291.2324594633865

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test