PATENT CLAIM ANALYSIS

Application Number: 15922187
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["060", "285000"]

Abstract:
The exhaust purification system of an internal combustion engine comprises: a catalyst arranged in an exhaust passage of the internal combustion engine and able to store oxygen; an ammonia detection device arranged in the exhaust passage at a downstream side of the catalyst in a direction of flow of exhaust; and an air-fuel ratio control part configured to control an air-fuel ratio of inflowing exhaust gas flowing into the catalyst to a target air-fuel ratio. The air-fuel ratio control part is configured to perform rich control making the target air-fuel ratio richer than a stoichiometric air-fuel ratio, and make the target air-fuel ratio leaner than the stoichiometric air-fuel ratio when an output value of the ammonia detection device rises to a reference value in the rich control.

Claim (Index 8):
The exhaust purification system of an internal combustion engine according to  claim 4 , further comprising a temperature detection part configured to detect or estimate a temperature of the catalyst or a temperature of exhaust gas flowing out from the catalyst, wherein\n the air-fuel ratio control part is configured to make the reference value smaller the higher the temperature detected or estimated by the temperature detection part.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 90.0
- Lexical Diversity: 2.33333
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14763653', '15248680', '15227121', '15200136', '14504516']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.817685119179162
- 35 USC 102 Novelty (BERT): 0.5441289141836232
- Combined Prediction Score: 0.7903294986796081
- Mean Citation Score: 451.19281200000006
- Max Citation Score: 470.0604
- Similarity Product: 322.51289813654427

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

Dataset: test