Turbocharger having balance valve, wastegate, and common actuator
First Claim
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1. A turbocharger, comprising:
- a turbine housing having a first volute, a second volute, and a common outlet;
a turbine wheel disposed between the common outlet and the first and second volutes;
a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel;
a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, the first and second valves sharing a common pivot axis; and
a common actuator configured to move the first and second valves.
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Abstract
A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves.
99 Citations
18 Claims
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1. A turbocharger, comprising:
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a turbine housing having a first volute, a second volute, and a common outlet; a turbine wheel disposed between the common outlet and the first and second volutes; a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel; a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, the first and second valves sharing a common pivot axis; and a common actuator configured to move the first and second valves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of handling exhaust from an engine having a first plurality of combustion chambers and a second plurality of combustion chambers, the method comprising:
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receiving exhaust from the first plurality of combustion chambers; receiving exhaust from the second plurality of combustion chambers; moving a common actuator in a first direction by a first amount to actuate a first valve of a valve assembly, thereby mixing exhaust received from the first plurality of combustion chambers with exhaust received from the second plurality of combustion chambers; directing exhaust received from the first and second pluralities of combustion chambers through a turbine; and moving the common actuator in the first direction by a second amount to actuate a second valve of the valve assembly, thereby allowing exhaust received from the second plurality of combustion chambers to bypass the turbine, the first and second valves sharing a common pivot axis. - View Dependent Claims (16)
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17. A power system, comprising:
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an engine having a first plurality of combustion chambers and a second plurality of combustion chambers; a first exhaust manifold configured to receive exhaust from only the first plurality of combustion chambers; a second exhaust manifold configured to receive exhaust from only the second plurality of combustion chambers; a turbocharger having a first volute in fluid communication with the first exhaust manifold, a second volute having a greater flow capacity than the first volute and being in fluid communication with the second exhaust manifold, a turbine wheel configured to receive exhaust from the first and second volutes, and a common outlet; a valve assembly including; a first valve configured to selectively fluidly communicate the first volute with the second volute at a location upstream of the turbine wheel, and a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, the first and second valves sharing a common pivot axis; and a single actuator configured to move the valve assembly. - View Dependent Claims (18)
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Specification