PATENT CLAIM ANALYSIS

Application Number: 16221708
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["384", "558000"]

Abstract:
A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing. Each of the first angular self-aligning contact bearing and the second angular self-aligning contact bearing includes a set of rolling elements arranged in a row and interposed between a respective curved inner raceway and an associated curved outer raceway. Each roller is a symmetrical cylindrically-shaped roller having a curved raceway-contacting surface. Each roller is inclined respective to the axial direction of the shaft by a respective contact angle. The rollers support an axial force and a radial force. The axially non-locating bearing position is arranged spaced apart from the axially locating bearing position, as seen in the axial direction. Examples of fluid machinery applications include: a wind turbine, water turbine or a propulsion turbine.

Claim (Index 1):
A bearing arrangement for a fluid machinery application having an axially locating bearing position and an axially non-locating bearing position, the axially locating bearing position comprising:\n a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating a shaft against movement in an axial direction; the first angular self-aligning contact bearing having a first set of rolling elements arranged in a first row and interposed between a first curved inner raceway and a first curved outer raceway, wherein each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface being engageable with the first curved inner raceway and the first curved outer raceway, wherein each of the first set of rolling elements of the first angular self-aligning contact bearing is inclined in relation to the axial direction of the shaft by a first contact angle; whereby the first set of rolling elements are arranged to cooperate with the first curved inner raceway and the first curved outer raceway for supporting an axial force and a radial force; and the second angular self-aligning contact bearing having a second set of rolling elements arranged in a second row and interposed between a second curved inner raceway and a second curved outer raceway, wherein each of the second set of rolling elements is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface being engageable with the second curved inner raceway and the second curved outer raceway, wherein each of the second set of rolling elements of the second angular self-aligning contact bearing is inclined in relation to the axial direction of the shaft by a second contact angle; whereby the second set of rolling elements are arranged to cooperate with the second curved inner raceway and the second curved outer raceway for supporting the axial force and the radial force; wherein each the first set of rolling elements of the first angular self-aligning contact bearing is inclined in relation to each of the second set of rolling elements of the second angular self-aligning contact bearing such that axial displacement of the shaft relative to the first and second angular self-aligning contact bearings is prevented; wherein the axially non-locating bearing position is arranged axially spaced apart from the axially locating bearing position, the axially non-locating bearing position not being configured to support axial force sufficiently to, on its own, prevent displacement between the rotor shaft and a third curved outer raceway of the axially non-locating bearing position since the third curved outer raceway and a third curved inner raceway of the axially non-locating bearing position are configured to be misalignable and to be axially displaceable from each other; wherein the first curved outer raceway of the first angular self-aligning contact bearing is facing the second curved outer raceway of the second angular self-aligning contact bearing such that the first and second angular self-aligning contact bearings form an X-arrangement, the first and second outer raceways being configured so as not to, when viewed in a cross-section, together define an arc of a single circle.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.14865
- Patent Class: 384.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14535420', '14705063', '14856598', '14932257', '15030344']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8080114121768358
- 35 USC 102 Novelty (BERT): 0.5455313206155975
- Combined Prediction Score: 0.781763403020712
- Mean Citation Score: 322.838536
- Max Citation Score: 411.12485
- Similarity Product: 366.968742308408

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