PATENT CLAIM ANALYSIS

Application Number: 16108667
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["422", "168000"]

Abstract:
An exhaust purification device of an engine includes: an exhaust passage; a urea injector supplying urea water into the exhaust passage; a pump device which supplies urea water stored in a urea tank to the urea injector, the pump device capable of performing an operation of recovering the urea water supplied to the urea injector to the urea tank; an SCR catalyst which purifies the exhaust gas using urea; and a controller. The controller controls the pump device such that the supply of the urea water to the urea injector is stopped, and a recovery operation for recovering the urea water in the urea injector to the urea tank is performed in a case where an amount of ammonium adsorbed by the SCR catalyst is larger than a predetermined reference adsorption amount under a condition where an internal temperature of the urea injector reaches a predetermined high temperature.

Claim (Index 3):
The exhaust purification device of an engine according to  claim 1 , wherein\n the reference adsorption amount is a target adsorption amount preset based on an amount of ammonium adsorbable by the SCR catalyst, and the controller is configured to control an operation of the urea injector and an operation of the pump device such that the amount of ammonium adsorbed by the SCR catalyst becomes the target adsorption amount, and the controller is configured to perform the recovery operation in a case where an amount of ammonium adsorbed by the SCR catalyst is larger than the target adsorption amount under a condition where a temperature of the urea injector reaches a predetermined high temperature.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 96.0
- Lexical Diversity: 2.37879
- Patent Class: 422.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16108699', '12741387', '16002744', '15650261', '15826468']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8409763621782224
- 35 USC 102 Novelty (BERT): 0.5092796426817469
- Combined Prediction Score: 0.8078066902285749
- Mean Citation Score: 296.53500999999994
- Max Citation Score: 332.6569
- Similarity Product: 261.8640926527262

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

Dataset: test