PATENT CLAIM ANALYSIS

Application Number: 15943273
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["060", "293000"]

Abstract:
There is provided a secondary air introduction device configured to introduce air into an exhaust port provided in a cylinder head of an engine by using a negative pressure in the exhaust port. A back-flow restriction member is provided between a reed valve and the exhaust port in an air introduction passage, and includes a plate part intersecting with an extension direction of the air introduction passage. The plate part has an air passing region in which the air flowing through the air introduction passage from an air intake unit toward the exhaust port is enabled to pass therethrough and a back-flow cutoff region in which exhaust air, which flows in a direction of directly colliding with at least a valve body of the reed valve, of exhaust air flowing back through the air introduction passage from the exhaust port is cut off.

Claim (Index 1):
A secondary air introduction device configured to introduce air into an exhaust port provided in a cylinder head of an engine by using a negative pressure in the exhaust port, the secondary air introduction device comprising:\n an air introduction unit having an air introduction passage configured to interconnect an air intake unit for taking therein atmospheric air and the exhaust port; a reed valve provided in the air introduction passage and configured to open and close the air introduction passage in correspondence to a pressure in the exhaust port; and a back-flow restriction member provided between the reed valve and the exhaust port in the air introduction passage, and comprising a plate part having a surface intersecting with an extension direction of the air introduction passage, wherein the plate part has an air passing region in which the air flowing through the air introduction passage from the air intake unit toward the exhaust port is enabled to pass therethrough and a back-flow cutoff region in which exhaust air, which flows in a direction of directly colliding with at least a valve body of the reed valve, of exhaust air flowing back through the air introduction passage from the exhaust port is cut off.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 91.0
- Lexical Diversity: 2.22388
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14535752', '13407433', '10803067', '14637123', '14635775']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7276062443722885
- 35 USC 102 Novelty (BERT): 0.4647658340656824
- Combined Prediction Score: 0.7013222033416279
- Mean Citation Score: 219.503698
- Max Citation Score: 229.13954
- Similarity Product: 198.66145077561973

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

Dataset: test