Turbo charging system
First Claim
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1. A turbocharger system, comprising:
- a high-pressure turbocharger system, wherein the high-pressure turbocharger system includes a turbine portion;
a low-pressure turbocharger system operably associated with the high-pressure turbocharger system, wherein the low-pressure turbocharger system includes a turbine portion having a first volute and a second volute formed therein, wherein the turbine portion of the high-pressure turbocharger system is in fluid communication with the turbine portion of the low-pressure turbocharger system; and
a turbine regulating valve system operably associated with the turbine portion of the low-pressure turbocharger system, wherein the turbine regulating valve system is selectively operable to meter an exhaust gas flow to the first or second volutes.
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Abstract
A regulated two-stage turbocharger system is described, including high-pressure and low-pressure turbocharger units. The low-pressure turbocharger unit includes a twin volute turbine portion. The turbocharger system includes a valve system having valve members that are independently controllable so as to selectively control an exhaust gas flow into the twin volutes of the turbine portion of the low-pressure turbocharger unit. By-pass valve systems are also provided for the twin volute turbine portion of the low-pressure turbocharger unit and the compressor portion of the high-pressure turbocharger unit.
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Citations
26 Claims
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1. A turbocharger system, comprising:
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a high-pressure turbocharger system, wherein the high-pressure turbocharger system includes a turbine portion;
a low-pressure turbocharger system operably associated with the high-pressure turbocharger system, wherein the low-pressure turbocharger system includes a turbine portion having a first volute and a second volute formed therein, wherein the turbine portion of the high-pressure turbocharger system is in fluid communication with the turbine portion of the low-pressure turbocharger system; and
a turbine regulating valve system operably associated with the turbine portion of the low-pressure turbocharger system, wherein the turbine regulating valve system is selectively operable to meter an exhaust gas flow to the first or second volutes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A turbocharger system, comprising:
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a high-pressure turbocharger system, wherein the high-pressure turbocharger system includes a turbine portion;
a low-pressure turbocharger system operably associated with the high-pressure turbocharger system, wherein the low-pressure turbocharger system includes a turbine portion having a first volute and a second volute formed therein, wherein the turbine portion of the high-pressure turbocharger system is in fluid communication with the turbine portion of the low-pressure turbocharger system;
a turbine regulating valve system operably associated with the turbine portion of the low-pressure turbocharger system, wherein the turbine regulating valve system includes at least two valve members selectively operable to meter an exhaust gas flow to the first or second volutes; and
a turbine by-pass system operably associated with the low-pressure turbine portion, wherein the turbine by-pass system is selectively operable to cause at least a portion of the exhaust gas flow to by-pass the low-pressure turbine portion. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A turbocharger system, comprising:
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a high-pressure turbocharger system, wherein the high-pressure turbocharger system includes a turbine portion and a compressor portion, wherein the turbine portion and the compressor portion are operably associated therebetween;
a low-pressure turbocharger system operably associated with the high-pressure turbocharger system, wherein the low-pressure turbocharger system includes a turbine portion having a first volute and a second volute formed therein, and a compressor portion, wherein the turbine portion and the compressor portion are operably associated therebetween, wherein the turbine portion of the high-pressure turbocharger system is in fluid communication with the turbine portion of the low-pressure turbocharger system, wherein the compressor portion of the high-pressure turbocharger system is in fluid communication with the compressor portion of the low-pressure turbocharger system;
a turbine regulating valve system operably associated with the turbine portion of the low-pressure turbocharger system, wherein the turbine regulating valve system includes at least two valve members selectively operable to meter an exhaust gas flow to the first or second volutes;
a turbine by-pass system operably associated with the low-pressure turbine portion, wherein the turbine by-pass system is selectively operable to cause at least a portion of the exhaust gas flow to by-pass the low-pressure turbine portion; and
a compressor by-pass system operably associated with the high-pressure compressor portion, wherein the compressor by-pass system is selectively operable to cause at least a portion of an air flow to by-pass the low-pressure compressor portion. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification