PATENT CLAIM ANALYSIS

Application Number: 16079625
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["415", "208200"]

Abstract:
A backfeed stage of a radial turbo fluid energy machine for deflecting a flow direction of a process fluid issuing from a rotor, rotating around an axis, from the radially outward to the radially inward, having a backfeed duct which has three adjacent sections in the flow direction, wherein a first section is designed for conducting the process fluid radially outward, wherein a second section is designed for deflecting the process fluid from radially outward to radially inward direction, wherein a third section is designed for conducting the process fluid radially inward, wherein the second section and third section, or only the third section, have/has first guide vanes which define flow passages of the backfeed duct in relation to each other in the circumferential direction.

Claim (Index 7):
A backfeed stage of a radial turbo fluid energy machine, especially of a radial turbocompressor, for deflecting a flow direction of a process fluid issuing from a rotor, rotating around an axis, from radially outward to radially inward, comprising\n a backfeed duct, which has three adjacent sections in the flow direction, wherein a first section is designed for conducting the process fluid radially outward, wherein a second section is designed for deflecting the process fluid from radially outward to radially inward, wherein a third section is designed for conducting the process fluid radially inward, wherein the second section and the third section, or only the third section, have/has first guide vanes which define flow passages of the backfeed duct in relation to each other in the circumferential direction, wherein the second section and the third section, or only the third section, have/has second guide vanes which are offset downstream by leading edges in relation to leading edges of the first guide vanes, which second guide vanes define flow passages of the backfeed duct in relation to each other in the circumferential direction, wherein the second guide vanes are designed and arranged in such a way that in a radially extending plane in the region of the axial extent of the third section a connecting line through two trailing edges of adjacent first guide vanes is not divided in the middle by a radial line through the leading edge of a second guide vane which is arranged between the two first guide vanes in the circumferential direction, characterized in that the first guide vanes each have a concave pressure side and a convex suction side and each flow passage in the region of the first guide vanes is defined by a pressure side of a first guide vane and a suction side of another adjacent first guide vane, wherein the second guide vane which is arranged downstream between the two first guide vanes is arranged closer to the suction side of the other adjacent first guide vane in the circumferential direction.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 96.0
- Lexical Diversity: 2.36842
- Patent Class: 415.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14650815', '10459993', '15256309', '14758236', '14043958']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7668430497020399
- 35 USC 102 Novelty (BERT): 0.4397733094552872
- Combined Prediction Score: 0.7341360756773646
- Mean Citation Score: 209.461028
- Max Citation Score: 218.91281
- Similarity Product: 179.8969872965157

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