Gas turbine driven by exhaust gas from internal combustion engine and method of controlling the same
A gas turbine driven by exhaust gas from an internal combustion engine is described, having a scroll means into which the exhaust gas from the internal combustion engine is introduced, the scroll means being adapted to direct the exhaust gas in the form of a spiral flow. An impeller is rotatably mounted in a center of the scroll means, adapted to be driven by energy of the exhaust gas from the scroll means and to discharge the exhaust gas after driving the impeller, in a direction of a rotation axis thereof from a central region thereof. A nozzle means, formed at an inner peripheral edge of the scroll means to surround the impeller, restricts the axial width of a flow passage therein through which the exhaust gas from the scroll means flows out towards the impeller, to a magnitude substantially corresponding to that of vanes on the impeller; and a plurality of guide vanes, each attached to one respective end thereof at a predetermined circumferential pitch to one portion of an inner wall of the scroll means defining the nozzle means and extending in a direction parallel to the axis of the impeller such that their extended ends are opposed to another portion of an inner wall scroll means through a gap therebetween, the guide vanes being adapted to deflect and guide the flow of the exhaust from the scroll means towards the impeller.
- Assignee:
- Hitachi, Ltd., Tokyo
- Patent Number(s):
- US 4809509
- OSTI ID:
- 6264489
- Resource Relation:
- Patent File Date: Filed date 17 Mar 1987
- Country of Publication:
- United States
- Language:
- English
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GAS TURBINES
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EQUIPMENT PROTECTION DEVICES
EXHAUST GASES
FINS
INTERNAL COMBUSTION ENGINES
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VORTEX FLOW
WASTE PRODUCT UTILIZATION
ENGINES
FLUID FLOW
FLUIDS
GASEOUS WASTES
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200104* - Fossil-Fueled Power Plants- Components
330100 - Internal Combustion Engines