PATENT CLAIM ANALYSIS

Application Number: 15777965
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["123", "286000"]

Abstract:
A gas engine includes: a main combustion chamber; and a precombustion chamber including an ignition plug disposed in a precombustion-chamber upper section and a throat formed in a precombustion-chamber lower section, the throat including a nozzle hole, configured such that mixed gas flows into the throat of the precombustion chamber via the nozzle hole from the main combustion chamber in a compression stroke. The nozzle hole has an opening edge portion on a throat side, the opening edge portion including a curved surface portion formed along a peripheral edge of the opening edge portion. The throat extends linearly along a center axis of the precombustion chamber. A ratio of a length of the throat to an inner diameter of the throat is not smaller than 1.6 and not greater than 2.6, and a value obtained by multiplying a ratio of the inner diameter of the throat to a radius of the curved surface portion by a ratio of the inner diameter of the throat to a precombustion chamber upper portion diameter is not smaller than 18.

Claim (Index 1):
A gas engine, comprising:\n a main combustion chamber; and a precombustion chamber including an ignition plug disposed in a precombustion-chamber upper section and a throat formed in a precombustion-chamber lower section, the throat including a nozzle hole, configured such that mixed gas flows into the throat of the precombustion chamber via the nozzle hole from the main combustion chamber in a compression stroke, wherein the nozzle hole has an opening edge portion on a throat side, the opening edge portion including a curved surface portion formed along a peripheral edge of the opening edge portion, wherein the throat extends linearly along a center axis of the precombustion chamber, and wherein a ratio of a length of the throat to an inner diameter of the throat is not smaller than 1.6 and not greater than 2.6, and a value obtained by multiplying a ratio of the inner diameter of the throat to a radius of the curved surface portion by a ratio of the inner diameter of the throat to a precombustion chamber upper portion diameter is not smaller than 18.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 93.0
- Lexical Diversity: 2.54795
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15761758', '14777453', '14418915', '16070674', '13203704']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7531346484154288
- 35 USC 102 Novelty (BERT): 0.4801943997353162
- Combined Prediction Score: 0.7258406235474175
- Mean Citation Score: 249.261658
- Max Citation Score: 262.91257
- Similarity Product: 220.6289627032471

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

Dataset: test