Turbocharger arrangement with compressor wheels arranged in parallel and method for operating a turbocharger arrangement

Abstract

The invention relates to a turbocharger arrangement with compressor wheels arranged in parallel and to a method for operating a turbocharger arrangement. Methods and systems for turbochargers of engines are provided. In one example, a method includes balancing a pressure differential between compressor wheels of a turbocharger.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to German Patent Application No. 102015213059.2 filed on July 13, 2015, the entire content of which is hereby incorporated by reference for all purposes. technical field [0003] The present disclosure relates to systems and methods for dual impeller compressors. Background technique [0004] Turbocharger arrangements are known in many different configurations and are an important part of many drives, especially in the motor vehicle segment. To improve the performance of such turbocharger arrangements, concepts involving multiple compressor wheels driven via a shaft by a common turbine are known. Series or parallel flow circuits comprising such compressor stages are known, depending on pressure or mass flow requirements. [0005] In particular, a parallel circuit comprising compressor stages discharging air into a common volume tends to be more difficult to control than a turbocharger...

AI Technical Summary

Problems solved by technology

The second inlet pipe is longer and has multiple deviations, as a result of which the inlet pipe has a higher resistance to flow

However, since the impeller geometry (i.e., compression characteristics and outlet pressure - both impellers discharge into the same outlet duct) is the same, different operating points in the characteristic curve (pressure ratio P 内 / P 外 ) and thus also possibly the different stability behavior of the individual compressor wheels

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