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. The nonventilated hydraulic turbine is selectively driven by a high pressure hydraulic fluid to drive supplementally the turbocharger during engine operating conditions when additional air flow to the engine is required. 
The Garrett Corporation
F Y
F02B Y02T
inventional additional
Robert J. James H. Joe L.
Kobayashi Nancarrow Byrne