PATENT CLAIM ANALYSIS

Application Number: 15760946
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["123", "568120"]

Abstract:
An exhaust heat recovery device includes a heat exchanger that performs heat exchange between exhaust gas flowing in from a first exhaust gas conduit and a fluid as a heated object. Regarding the heat exchanger, a flow passage for the exhaust gas inside the shell is configured so that the exhaust gas flowing in from the exhaust gas inflow passage reaches a branch after contacting a plate in a division area and the exhaust gas not branched to an exhaust gas recirculation flow passage at the branch flows out to a second exhaust gas conduit after contacting a plate in a division area.

Claim (Index 1):
An exhaust heat recovery device comprising:\n a first exhaust gas conduit having an inner peripheral side to which exhaust gas from an internal combustion engine flows in; a second exhaust gas conduit that is positioned at a downstream side from the first exhaust gas conduit in an exhaust gas flowing direction; a heat exchanger that carries out heat exchange between the exhaust gas flowing in from the first exhaust gas conduit and a fluid as a heated object; a valve that is configured to change a flow ratio between a flow rate of the exhaust gas flowing out to the second exhaust gas conduit from the first exhaust gas conduit not being subjected to the heat exchanger and a flow rate of the exhaust gas flowing in to the heat exchanger from the first exhaust gas conduit; and a branch that branches the exhaust gas subjected to the heat exchange with the fluid by the heat exchanger partially or fully to an exhaust gas recirculation flow passage that recirculates the exhaust gas to an intake system of the internal combustion engine; wherein the heat exchanger comprises a plurality of plates respectively configured to be annular and hollow and arranged at positions surrounding an outer periphery of the first exhaust gas conduit and a shell provided at a position surrounding the outer periphery of the first exhaust gas conduit and housing the plurality of plates therein, a flow passage for the fluid as the heated object is configured inside the plurality of plates so that the fluid is supplied to insides of the respective plates via a fluid supply passage and the fluid is discharged from the insides of the respective plates via a fluid discharge passage, and wherein the heat exchanger is configured so that, at a place inside of the shell and outside of the plurality of plates, the exhaust gas flows in from the first exhaust gas conduit via an exhaust gas inflow passage and is flows out to the second exhaust gas conduit via an exhaust gas outflow passage, and wherein the inside of the shell is divided into a plurality of division areas, each of the division areas houses at least one of the plurality of plates therein, and a flow passage for the exhaust gas inside the shell is configured so that the exhaust gas flowing in from the exhaust gas inflow passage reaches the branch after contacting the plate in at least one of the plurality of division areas and the exhaust gas not branched to the exhaust gas recirculation flow passage at the branch flows out to the second exhaust gas conduit after contacting the plate in at least one of the plurality of division areas.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.03846
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11358927', '15407154', '15162443', '15053827', '14415233']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7550757116506488
- 35 USC 102 Novelty (BERT): 0.4801739928136975
- Combined Prediction Score: 0.7275855397669536
- Mean Citation Score: 256.18965
- Max Citation Score: 260.44583
- Similarity Product: 215.69017895327443

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

Dataset: test