Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1996-10-30
1999-05-04
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
F02B 37007, F02B 37013
Patent
active
058990704
ABSTRACT:
In a turbo compounded air and fuel supply system for a gaseous fuel engine, separate turbochargers are utilized to compress the air and gaseous fuel. A first turbocharger has a first turbine connected to an exhaust line from the engine and a first compressor having an inlet open to a source of air. A compressed air supply line has one end connected to the outlet from the first compressor and its other end connected to an engine air inlet. A gaseous fuel supply line has one end connected to a source of low pressure gaseous fuel. A second turbocharger has a second turbine connected to the exhaust line from the engine and has a second compressor with an inlet connected to the gaseous fuel supply line. A high pressure gaseous fuel supply line has one end connected to the outlet of the second compressor and its other end connected to an engine fuel inlet. A computer controlled wastegate valve in the exhaust line allows a portion of the exhaust to be bypassed around the second turbine. Thus, the present invention utilizes waste energy from the engine to compress both the air and fuel supply to a gaseous fuel engine rather than by some external compressor or a device which draws power directly from the engine.
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Droessler Kim J.
Earleson Walter E.
Smith Carol J.
Caterpillar Inc.
Koczo Michael
McNeil Michael
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