PATENT CLAIM ANALYSIS

Application Number: 16188283
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["060", "226100"]

Abstract:
An aerospace turbofan engine that injects oxygen-enriched gas from an inlet includes an oxygen-enriched gas injection component, a body structure, an afterburner middle portion and a first afterburner outer ring. An aerospace turbofan engine that injects oxygen-enriched gas from an inlet and an afterburner individually or simultaneously includes an oxygen-enriched gas injection component, a body structure, an afterburner middle portion and a second afterburner outer ring. The aerospace turbofan engines which fully utilize oxygen in the atmosphere for combustion and work in various flight altitude ranges adopt regenerative cooling-type afterburners with acoustic cavity and baffle plates, so that an aircraft can fly to an altitude of 20-50 km and reach a speed of Mach 2-5. Variants of the aerospace turbofan engines are disclosed.

Claim (Index 1):
An aerospace turbofan engine that injects oxygen-enriched gas from an inlet, comprising:\n an oxygen-enriched gas injection component; a body structure; an afterburner middle portion; and a first afterburner outer ring; wherein the oxygen-enriched gas injection component comprises: an oxygen-enriched gas three-way pipe; an oxygen-enriched gas introduction pipe; an oxygen-enriched gas collector; and an oxygen-enriched gas injection ring; wherein the body structure comprises: an inlet outer wall; a low-pressure compressor; a high-pressure compressor; a primary combustion chamber; a high-pressure turbine; a low-pressure turbine; a central exhaust nozzle; an outer wall of an outer duct; a thickened inner wall of the outer duct; and an outer wall flange of the outer duct; wherein the afterburner middle portion comprises: a nozzle outer wall; a fuel collector; and a fuel introduction pipe; wherein the first afterburner outer ring comprises: an acoustic cavity; a plurality of screw piles; a plurality of nuts; a coolant outflow collector; a coolant eduction pipe; a spiral groove inner wall; a spiral groove outer wall, a coolant inflow collector; a coolant introduction pipe; and a plurality of baffle plates; wherein all of components except the body structure, the plurality of screw piles and the plurality of nuts are fixedly welded; a plurality of radial holes configured to inject oxygen-enriched gas into the inlet are formed on the oxygen-enriched gas injection ring and uniformly distributed along a circumference of the oxygen-enriched gas injection ring; the oxygen-enriched gas is composed of oxygen and water vapor and is produced by catalytic decomposition of hydrogen peroxide with a concentration of 70-79%; a plurality of fuel vertical holes are formed on the nozzle outer wall; a plurality of fuel oblique holes are formed on the fuel collector; the plurality of fuel vertical holes and the plurality of fuel oblique holes are configured to inject kerosene or liquid hydrogen fuel into an afterburner for afterburning; and a plurality of spiral grooves through which the hydrogen peroxide having a concentration of 70-79% flows for regenerative cooling are milled on an outer surface of the spiral groove inner wall, wherein the spiral groove inner wall is brazed together with the spiral groove outer wall.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 98.0
- Lexical Diversity: 1.88571
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11209918', '10797212', '10848986', '11095647', '10360016']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.68946991087816
- 35 USC 102 Novelty (BERT): 0.484401005887051
- Combined Prediction Score: 0.6689630203790491
- Mean Citation Score: 219.36225
- Max Citation Score: 230.01659
- Similarity Product: 173.5014997320932

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

Dataset: test