Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1984-09-14
1986-11-18
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
184 622, 415 38, 415176, F02B 3700
Patent
active
046228179
ABSTRACT:
An improved hydraulic assist turbocharger system is provided of the type having an hydraulic turbine for supplementally driving a turbocharger during selected engine operating conditions when supplemental air flow to the engine is required. The improved system is adapted for improved engine starting during cold weather conditions by increasing the pressure of hydraulic fluid supplied to the hydraulic turbine during engine cranking and/or decreasing the viscosity of said hydraulic fluid, thereby accelerating the turbocharger rapidly to a rotational speed for supplying sufficient air flow to the engine for starting purposes. In one form, the improved system further includes a pilot controller for regulating supply of hydraulic fluid to the hydraulic turbine to control engine air inflow, wherein the pilot controler is responsive to command signals from a master control unit which also controls engine fuel flow in accordance with a predetermined air-fuel ratio schedule throughout a range of engine operating conditions.
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Koczo Michael
Lowry Stuart O.
Miller Albert J.
The Garrett Corporation
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