Hydraulic assist turbocharger system
 A turbocharger system for supplying charge air to a combustion engine includes a nonventilated hydraulic turbine mounted directly on the turbocharger shaft, and an auxiliary combustor mounted in-line between the engine and the turbocharger. The nonventilated hydraulic turbine is selectively driven by a high pressure hydraulic fluid to drive the turbocharger for supplying air to the auxiliary combustor, which in turn supplementally drives the turbocharger throughout a broad range of engine operation to provide additional air flow to the engine when required. 
The Garrett Corporation
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Joe L. Robert J. James H.
Byrne Kobayashi Nancarrow