PATENT CLAIM ANALYSIS

Application Number: 15759190
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["123", "294000"]

Abstract:
An engine includes: a piston including a cavity; a cylinder head configured to form a combustion chamber having a pent roof shape; a fuel injection valve configured to inject fuel from a second half of a compression stroke until a first half of an expansion stroke; and a spark plug arranged at a position corresponding to an upper side of the cavity. Injection openings are arranged in a circumferential direction surrounding a longitudinal axis of the valve. The combustion chamber at a compression top dead center is divided into a plurality of fuel injection regions, located in respective injection directions of the injection openings, by vertical surfaces extending radially from the longitudinal axis through a middle between adjacent injection openings. When a volume of the fuel injection region located in the injection direction of the injection opening is large, an opening area of the injection opening is large.

Claim (Index 2):
The engine according to  claim 1 , wherein the injection openings are formed such that a ratio of the opening areas of the injection openings and a ratio of the volumes of the fuel injection regions located in the respective injection directions of the injection openings coincide with each other.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 1.93902
- Patent Class: 123.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15759495', '15579896', '11884674', '15558474', '14395902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7825982432640125
- 35 USC 102 Novelty (BERT): 0.5267617359806834
- Combined Prediction Score: 0.7570145925356796
- Mean Citation Score: 300.13381
- Max Citation Score: 382.66833
- Similarity Product: 289.1141644117141

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