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US 9,850,911 B2Granted
Turbocharger with lubricant deflector
AssigneeHoneywell International Inc.
InventorsSunil Dayalan, Zachariah Poomkuzhimanni John, Kiran Pithamber, Prithivi Karthikeyan, Giorgio Figura, Maltesh Kolur
Life of this patent
Estimating the term…
Abstract
A turbocharger assembly can include a center housing that includes a compressor side, a turbine side, a bore that extends between the compressor side and the turbine side and a socket at the compressor side; a journal bearing disposed in the bore; and a lubricant deflector disposed at least partially in the socket. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
Claims19
A turbocharger assembly comprising:
- a center housing that comprises a compressor side, a turbine side, a journal bearing bore that extends between the compressor side and the turbine side, a boss at the compressor side, and a socket at the compressor side that is defined in part by a surface of the boss and that is disposed about and axially inset from a compressor side opening of the journal bearing bore;
- a journal bearing disposed at least in part in the journal bearing bore;
- and
- a lubricant deflector disposed at least partially in the socket,
- wherein at least a portion of an axially extending wall of the lubricant deflector axially overlaps a portion of the journal bearing, wherein the portion of the journal bearing comprises a compressor end that extends axially past the compressor side opening of the journal bearing bore, and wherein the surface of the boss is at least in part radially inward of at least a portion of the axially extending wall of the lubricant deflector.
2 more elements
A method comprising:
- providing a cavity between a deflector and a compressor side of a center housing of a turbocharger, the turbocharger having a shaft supported by journal bearing disposed at least in part in a journal bearing bore of the center housing wherein the deflector is disposed at least in part in a socket of the compressor side of the center housing wherein the socket is defined in part by a surface of a boss at the compressor side of the center housing and disposed about and axially inset from a compressor side opening of the journal bearing bore, wherein at least a portion of an axially extending wall of the deflector axially overlaps a portion of the journal bearing, wherein the portion of the journal bearing comprises a compressor end of the journal bearing that extends axially past the compressor side opening of the journal bearing bore, and wherein the surface of the boss is at least in part radially inward of at least a portion of the axially extending wall of the deflector;
- directing pressurized lubricant to an inlet of the center housing;
- flowing the lubricant to the journal bearing for lubricating an annular clearance between the shaft and the journal bearing;
- capturing within the cavity lubricant exiting a compressor side of the annular clearance wherein at least a portion of the axially extending wall deflects at least a portion of the lubricant;
- and
- directing lubricant from the cavity towards a lubricant drain of a lubricant drainage cavity of the center housing.
3 more elements
Dependencies are inferred from the claim text.