PATENT CLAIM ANALYSIS

Application Number: 15874003
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["123", "263000"]

Abstract:
An internal combustion engine includes: a main combustion chamber; an intake port connected to the main combustion chamber at an intake opening; an exhaust port connected to the main combustion chamber at an exhaust opening; a sub-chamber provided between the intake opening and the exhaust opening, and connected to the main combustion chamber through a plurality of through-holes; a fuel injector injecting fuel into the sub-chamber; and a spark plug performing ignition in the sub-chamber. A tumble flow flows from a first side to a second side as seen from the sub-chamber. The through-holes include: a first through-hole formed in a first side part of a side wall of the sub-chamber; and a second through-hole different from the first through-hole. A diameter of the first through-hole is larger than that of the second through-hole.

Claim (Index 8):
An internal combustion engine comprising:\n a main combustion chamber sandwiched between a cylinder head and a piston facing the cylinder head; an intake port formed within the cylinder head and connected to the main combustion chamber at an intake opening; an exhaust port formed within the cylinder head and connected to the main combustion chamber at an exhaust opening; a sub-chamber provided on the cylinder head between the intake opening and the exhaust opening, and connected to the main combustion chamber through a plurality of through-holes; a fuel injector injecting fuel into the sub-chamber; and a spark plug performing ignition in the sub-chamber, wherein the plurality of through-holes include: a first through-hole formed in a part on a side of the intake opening of a side wall of the sub-chamber; and a second through-hole different from the first through-hole, and a diameter of the first through-hole is larger than a diameter of the second through-hole.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.45
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15638481', '12410076', '15815082', '14439943', '13611218']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7362735225095325
- 35 USC 102 Novelty (BERT): 0.5093894501162575
- Combined Prediction Score: 0.7135851152702051
- Mean Citation Score: 309.561538
- Max Citation Score: 323.464
- Similarity Product: 271.82417806053155

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