PATENT CLAIM ANALYSIS

Application Number: 15864719
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-10
Patent Classification: ["073", "040000"]

Abstract:
A leakage detection device for detecting leakage in a positive crankcase ventilation (PCV) passage having at least a scavenging line and a fresh air line includes: a first pressure measurement unit that measures a pressure in the PCV passage; a leakage detection valve that opens and closes the fresh air line; a PCV valve that adjusts a flow rate of blow-by gas; a second pressure measurement unit that measures a pressure in the intake passage; a first valve controller that controls the leakage detection valve when a leakage diagnostic condition is satisfied; a second valve control unit that reduces an opening degree of the PCV valve, and suppresses a flow rate in the PCV passage based on the pressure in the intake manifold after the leakage detection valve is closed; and a leakage determination unit that determines whether leakage occurs based on the pressure in the PCV passage.

Claim (Index 3):
The leakage detection device according to  claim 1 , the leakage detection device further comprising a compressor configured to supercharge air flowing into the intake passage, the compressor being provided downstream of an area of the intake passage, and upstream of the throttle valve, the area being communicated with the fresh air line, wherein\n the fresh air line is coupled to the intake passage at a portion upstream of the compressor.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 2.33824
- Patent Class: 73.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15575486', '15738436', '13620021', '14923936', '15133133']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7384472051076029
- 35 USC 102 Novelty (BERT): 0.5105533378673687
- Combined Prediction Score: 0.7156578183835794
- Mean Citation Score: 280.595138
- Max Citation Score: 307.7018
- Similarity Product: 231.6931527388096

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