PATENT CLAIM ANALYSIS

Application Number: 15743409
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["239", "533120"]

Abstract:
Among all combinations of two injection holes, in a combination in which when the injection holes are offset such that their central axes are coincident with each other in inlet openings, an inter-injection hole angle formed by the central axes is minimized, the inter-injection hole angle between the two injection holes is represented as γamin[deg], taper angles, which are formed by the respective contours of the injection hole inner walls in the cross sections along the virtual planes including the central axes of the two injection holes that allow the inter-injection hole angle to be minimized, are represented as θa 1  and θa 2[ deg], and when fuel is injected from the injection holes, average pressure of the fuel in the fuel passage is represented as P[Mpa], and the injection holes are formed so as to satisfy a relationship: γamin≥θa 1+θ a 2+0.5× P 0.6

Claim (Index 1):
A fuel injection device, comprising\n a nozzle part including a nozzle cylinder portion internally forming a fuel passage, a nozzle bottom portion closing one end of the nozzle cylinder portion, and a plurality of injection holes that connect between a surface of the nozzle bottom portion on a side close to the nozzle cylinder portion and a surface of the nozzle bottom portion on a side opposite to the nozzle cylinder portion, and inject fuel in the fuel passage, wherein each of the injection holes includes an inlet opening formed in the surface of the nozzle bottom portion on the side close to the nozzle cylinder portion, an outlet opening formed in the surface of the nozzle bottom portion on the side opposite to the nozzle cylinder portion, and an injection hole inner wall that is connected to the inlet opening and the outlet opening and has a tapered shape so as to be gradually away from a central axis as going from the inlet opening toward the outlet opening, and among all combinations of two of the injection holes, in a combination in which when the injection holes are offset such that central axes of the injection holes are coincident with each other in the inlet openings, an inter-injection hole angle formed by the central axes is minimized, the inter-injection hole angle between the two injection holes is represented as \u03b3amin[deg], taper angles, which are formed by respective contours of the injection hole inner walls in cross sections along virtual planes including the central axes of the two injection holes that allow the inter-injection hole angle to be minimized, are represented as \u03b8a 1  and \u03b8a 2 [deg], and when fuel is injected from the injection holes, average pressure of the fuel in the fuel passage is represented as P[Mpa], and the injection holes are formed so as to satisfy the following relationship:\n \u03b3amin\u2265\u03b8a1+\u03b8a2+0.5\u00d7P0.6.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 2.11688
- Patent Class: 239.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16069228', '14198829', '10771516', '14395854', '15126038']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8126166962019843
- 35 USC 102 Novelty (BERT): 0.5127794219502141
- Combined Prediction Score: 0.7826329687768072
- Mean Citation Score: 288.296
- Max Citation Score: 336.55896
- Similarity Product: 305.45988416504866

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

Dataset: test