Turbocharger having inclined volutes
First Claim
Patent Images
1. A turbocharger, comprising:
- an impeller wheel rotatable about a central axis and having a back face at least partially defining a reference plane substantially perpendicular to the central axis; and
a housing configured to at least partially enclose the impeller wheel and having at least one volute, including a vaned portion, configured to fluidly communicate a fluid with the impeller wheel, wherein the entire vaned portion of the at least one volute is inclined axially relative to the reference plane so that the fluid flows in both a radial and axial direction.
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Accused Products
Abstract
A turbocharger for a power system is disclosed. The turbocharger has an impeller wheel, which is rotatable about a central axis and includes a back face at least partially defining a reference plane substantially perpendicular to the central axis. In addition, the turbocharger includes a housing configured to at least partially enclose the impeller wheel. The housing also has at least one volute configured to fluidly communicate fluid with the impeller wheel. The entire length of the at least one volute from a turbocharger inlet is axially inclined relative to the reference plane so the fluid flows in both a radial and axial direction.
30 Citations
20 Claims
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1. A turbocharger, comprising:
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an impeller wheel rotatable about a central axis and having a back face at least partially defining a reference plane substantially perpendicular to the central axis; and a housing configured to at least partially enclose the impeller wheel and having at least one volute, including a vaned portion, configured to fluidly communicate a fluid with the impeller wheel, wherein the entire vaned portion of the at least one volute is inclined axially relative to the reference plane so that the fluid flows in both a radial and axial direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating a turbocharger, comprising:
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receiving a first flow of exhaust; simultaneously receiving a second flow of exhaust at a location axially offset and separate from the first flow of exhaust; and radially and axially directing the first and second flows of exhaust through a vaned area and a power generating device at the same inclined angle relative to a reference plane perpendicular to a central axis of the power generating device. - View Dependent Claims (15, 16, 17)
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18. A power system, comprising:
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an engine having a plurality of combustion chambers and being configured to produce a power output and a flow of exhaust gases; a first exhaust passageway associated with at least a first of the plurality of combustion chambers; a second exhaust passageway associated with at least a second of the plurality of combustion chambers; and a turbocharger in fluid communication with the first and second exhaust passageways, the turbocharger including; a turbine wheel rotatable about a central axis and having a back face at least partially defining a reference plane substantially perpendicular to the central axis; and a housing configured to at least partially enclose the turbine wheel and having; a first volute configured to fluidly communicate exhaust with the turbine wheel, wherein at least a portion of the first volute is inclined axially toward a compressor wheel relative to the reference plane so that an outer periphery of the first volute is located axially closer to the compressor wheel than an inner periphery of first volute and the exhaust flows in both a radial and axial direction; a second volute configured to fluidly communicate exhaust with the turbine wheel, wherein at least a portion of the second volute is inclined axially toward a compressor wheel relative to the reference plane so that an outer periphery of the second volute is located axially closer to the compressor wheel than an inner periphery of second volute and the exhaust flows in both a radial and axial direction; a vaned portion including a plurality of annularly disposed vane members associated with at least one of the first and second volutes, wherein the axial inclination of the at least one of the first and second volutes extends through the entire vaned portion; and an annular opening associated with each of the first and second volutes and in communication with the turbine wheel, wherein the axial inclination of the first and second volutes extends to the annular opening. - View Dependent Claims (19, 20)
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Specification