PATENT CLAIM ANALYSIS

Application Number: 15904493
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["060", "605100"]

Abstract:
A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism operable to move between an open position and a closed position. The inlet-adjustment mechanism includes a plurality of blades disposed about the compressor air inlet and located within an annular space within the air inlet wall. The blades are pivotable about respective pivot points such that the blades extend radially inward from the annular space into the air inlet when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. The blades include lever arms that engage the outer periphery of a rotatable unison ring that is linked to a linear actuator for rotating the unison ring so as to pivot the blades.

Claim (Index 1):
A turbocharger comprising:\n a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing receiving exhaust gas and supplying the exhaust gas to the turbine wheel; a centrifugal compressor assembly comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith, the compressor wheel having blades and defining an inducer portion, the compressor housing having an air inlet wall defining an air inlet for leading air generally axially into the compressor wheel, the compressor housing further defining a volute for receiving compressed air discharged generally radially outwardly from the compressor wheel, the compressor housing defining an annular space bounded between an upstream wall and a downstream wall spaced axially therefrom, the annular space surrounding the air inlet and being open to the air inlet at a radially inner end of the annular space; and a compressor inlet-adjustment mechanism disposed in the annular space of the compressor housing and movable between an open position and a closed position, the inlet-adjustment mechanism comprising a plurality of blades disposed within the annular space, wherein each of the blades includes an orifice portion at one end of the blade, a lever arm at an opposite end of the blade, and a mounting portion disposed intermediate the lever arm and the orifice portion, the orifice portions of the blades collectively circumscribing an orifice, the blades pivoting radially inwardly from the annular space into the air inlet when the blades are in the closed position so as to cause the orifice to have a reduced diameter relative to a nominal diameter of the inlet; and a unison ring surrounding the blades, the unison ring being rotatable about a rotational axis that is substantially coaxial with a rotation axis of the turbocharger, the unison ring having a radially inner peripheral surface and a radially outer peripheral surface, the radially outer peripheral surface defining a plurality of circumferentially spaced notches, one said notch for each said blade, each blade being supported by a pivot pin affixed to the mounting portion and rotatably engaged in a bore in the compressor housing such that the blade pivots about an axis defined by the bore, the mounting portions of the blades being disposed radially inward from the radially inner periphery of the unison ring, the lever arm of each blade including a support portion that extends radially outwardly from the mounting portion, the support portion passing adjacent to a downstream face of the unison ring and axially supporting the unison ring, each lever arm further including a hook portion that extends axially from a radially outer end of the support portion and is engaged in a respective one of the notches in the radially outer periphery of the unison ring, whereby rotation of the unison ring imparts pivotal movement to the blades via engagement of the hook portions of the lever arms in the notches in the radially outer periphery of the unison ring.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 1.89855
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15806267', '15446054', '15446090', '15822093', '15675691']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7516439488678897
- 35 USC 102 Novelty (BERT): 0.5525911692316857
- Combined Prediction Score: 0.7317386709042693
- Mean Citation Score: 403.324508
- Max Citation Score: 425.24515
- Similarity Product: 422.1020212430656

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