PATENT CLAIM ANALYSIS

Application Number: 15867259
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["236", "09200B"]

Abstract:
An expansion valve includes: a body having a second passage through which a refrigerant returning from an evaporator passes, and a mounting hole communicating with the second passage; a power element mounted on the body in such a manner as to close the mounting hole; a shaft that transmits a drive force from the power element to a valve element; and a plate that separates an open space from the second passage, has an insertion hole, through which the shaft extends, coaxially along a central axis of the plate, and limits a flow of the refrigerant from the second passage into the open space to a flow through a clearance between the shaft and the insertion hole. The insertion hole is formed such that an opening area of the clearance between the shaft and the insertion hole is 7.0 mm 2  or smaller.

Claim (Index 1):
An expansion valve for throttling and expanding a refrigerant flowing from an upstream side and supplying the expanded refrigerant to an evaporator and for sensing a pressure and a temperature of the refrigerant returning from the evaporator to control an opening degree of a valve section, the expansion valve comprising:\n a body having a first passage through which the refrigerant flowing from the upstream side toward the evaporator passes, a second passage through which the refrigerant returning from the evaporator passes, a valve hole formed in the first passage, and a mounting hole communicating with the second passage; a valve element that moves toward and away from the valve hole to adjust an opening degree of the valve section; a power element having a housing mounted on the body in such a manner as to close the mounting hole, a diaphragm partitioning an inside of the housing into a closed space in which a temperature sensing medium is sealed and an open space communicating with the second passage, and a disc located in the open space in contact with the diaphragm; a shaft extending through a partition between the first passage and the second passage, having a first end connected to the diaphragm through the disc and a second end connected to the valve element, and being configured to transmit a drive force in an axial direction to the valve element, the drive force being generated by displacement of the diaphragm; and an inflow regulating part that separates the open space from the second passage, has an insertion hole, through which the shaft extends, coaxially along a central axis of the inflow regulating part, and limits a flow of the refrigerant from the second passage into the open space to a flow through a clearance between the shaft and the insertion hole, wherein the insertion hole is formed such that an opening area of the clearance between the shaft and the insertion hole is 7.0 mm 2  or smaller.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 86.0
- Lexical Diversity: 2.23188
- Patent Class: 236.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15380189', '13843593', '15168891', '14839601', '14845196']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7374588746628373
- 35 USC 102 Novelty (BERT): 0.4717231091823353
- Combined Prediction Score: 0.7108852981147871
- Mean Citation Score: 220.309464
- Max Citation Score: 235.1777
- Similarity Product: 219.6147633997201

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