Turbo-compound system

Abstract

The present invention relates to a turbocompound system having a crankshaft driven by an internal combustion engine; an exhaust gas powered turbine in the exhaust flow of the internal combustion engine; a hydraulic coupling comprising a first wheel and a second wheel which together form a filling or operable filling The working chamber of the medium, the fluid coupling forms a driving connection between the crankshaft and the exhaust gas power turbine, yes when filling the working chamber of the fluid coupling, the driving power is transmitted from the exhaust gas power turbine to the crankshaft. The turbocompound system is characterized by switching means for reversing the direction of rotation of the first wheel or the second wheel of the fluid coupling.

Description

technical field

[0001] The present invention relates to a turbocompound system, that is, a system for improving the efficiency of the exhaust energy transmission of an internal combustion engine through an exhaust gas powered turbine and a fluid coupling connected to the crankshaft of the internal combustion engine in a power transmission system. The system to which the invention relates can also be referred to as a turbo compound retarder system, since it also has a retarder function, ie it can apply a braking action to the crankshaft of the internal combustion engine when required. Background technique

[0002] Turbocompound systems and turbocompound reducer systems are well known to those of ordinary skill in the art. In particular, the latter usually have a hydrodynamic coupling for torque transmission between the exhaust gas powered turbine and the crankshaft of the internal combustion engine. In order to provide the described braking effect, the impeller of the hydrod...

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