A MULTI-STAGE EXHAUST TURBOCHARGER SYSTEM
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Jan 26, 2016
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Feb 6, 2015
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A multi-stage exhaust turbocharger has parallel high pressure stages (30, 40) and a single low pressure stage in series. The high pressure stages (30, 40) have variable geometry turbines. The low pressure stage (60) has a divided scroll turbine wheel (62) with each scroll fed independently from the respective turbines of the high pressure stages. Valves V1, V2 determine flow paths to the respective turbines to ensure series, sequential operation.
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