Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1998-02-09
1999-07-20
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
123565, F02B 3710, F02B 3908
Patent
active
059242868
ABSTRACT:
A supercharger system in which an hydraulic driven supercharger shares an hydraulic power system with at least one other hydraulic driven device. The system includes a very high speed radial inflow hydraulic turbine drive driving a compressor for supplying compressed air to an internal combustion engine. Pressurized hydraulic fluid for driving a supercharger hydraulic turbine is provided by a first pump driven by the engine shaft. A second pump provides a higher pressure hydraulic fluid flow for driving at least one other device, such as a power steering device. In a preferred embodiment, when the hydraulic turbine is not needed at high engine speed because sufficient air is provided by a turbosupercharger, a bypass valve is opened by a controller to unload the hydraulic pump and then the controller causes a clutch to decouple the supercharger hydraulic pump from the engine shaft. Each of several preferred embodiments utilize a plastic-metal turbine wheel in which the plastic portion of the wheel other than the blades is solidly anchored within a metal containing wheel. The superchargers provided by the present invention produce immediate response to engine demand for increased combustion air and will dramatically reduce smoke emission during low speed acceleration of bus and truck engines as well as greatly improve engine efficiency. In another preferred hybrid embodiment, the hydraulic turbine drive is mounted on the same shaft with an exhaust driven turbine, and both drive the a compressor providing compressed air to the engine. In a preferred embodiment a novel nozzle body is disclosed having an increased number of nozzles at angles such as to provide substantial exit hole overlapping at nozzle exits to produce an increase of about 7 percent over similar prior art hydraulic turbine driven superchargers.
REFERENCES:
patent: 3869866 (1975-03-01), Timoney
patent: 4285200 (1981-08-01), Byrne
patent: 5471965 (1995-12-01), Kapich
Koczo Michael
Ross John R.
Ross III John R.
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