PATENT CLAIM ANALYSIS

Application Number: 15748889
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["122", "017100"]

Abstract:
A heat exchanger, comprising at least a double shell, wherein the lower portion of the inner space of the inner shell is filled with liquid phase change medium, and at least one coiler is provided in the upper portion. The heated fluid flows in the coiler. After the downstream side pipe of the coiler is pierced through the inner shell, at least one surrounding pipe is formed in the cavity between the double shells. The bottom heat exchange plate of heat exchanger of the inner shell is located above the heat source. The cavity between the two shells forms the flue gas passage. After bottom heat exchange plate of the inner shell is heated by the heat source, the flue gas rises from the bottom of perimeter of the inner shell along the flue gas passage and the heat is transferred to the heated fluid in the surrounding pipe. The heat device using the heat exchanger according to the present invention can significantly improve the efficiency of heat utilization.

Claim (Index 10):
A three-heating core phase change gas water heater, characterized in that it comprises a three-layer heating cores: a first heating core is the remaining flue gas heat exchange section, a second heating core is the vacuum phase change heat exchange section of the inner closed shell, the third heating core is the flue gas swept around the pipeline heat exchange part around the heat exchange chamber; it comprises three layer of shells, which are a first, a second and a third shells from outside to inside, respectively; the third heating core area is located between the second and the third layer of the shell;\n the first shell is the outermost shell, a heat exchange tube is provided at the left top, the first heating core area is located in the gap between the first shell and second shell, a burner is arranged at the bottom of the second shell, the third shell is located above the burner, and the spiral heat exchange tube is arranged outside the third shell, the heat exchange tube is finned to strengthen the heat exchange, this area is the third heating core area, inside the third shell is the second heating core area, that is, the phase change heat exchanger, the upper part of the heat exchanger is arranged with a heat exchange water pipe and the lower part is a phase change medium, the heat exchange tube enters the first, second and third heating core area for heat exchange, successively; the above structure forms a complete phase-change three-heating core heat exchange system, the water pipe is one pipe from beginning to end, and the burner is arranged below the lower plate of the phase change heat exchanger, the flue gas flows upward along the gap between the second and third shells and finally discharged from the upper part of the water heater.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.44595
- Patent Class: 122.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15787060', '14253065', '10842067', '11716760', '14737492']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7663667208302325
- 35 USC 102 Novelty (BERT): 0.4861464281078182
- Combined Prediction Score: 0.7383446915579911
- Mean Citation Score: 211.31195
- Max Citation Score: 218.37807
- Similarity Product: 163.46660444351082

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