Power plants – Combustion products used as motive fluid – Rotating combustion products generator and turbine
Patent
1998-08-21
1999-10-05
Kim, Ted
Power plants
Combustion products used as motive fluid
Rotating combustion products generator and turbine
60 3938, F02C 316, F02C 500
Patent
active
059606258
ABSTRACT:
A gas turbine engine having a turbine housing, air compressor, diffuser, shafts, bearings, seals, ignition system, fuel system and starter with improvements comprising an air charge combustor inlet plate (44), a rotating constant volume combustor (74), a gas metering valve plate (46), a gas distributor plate (102), gas nozzle plates (48), (104) and (112), and turbine wheels (66), (68) and (70); which enables changing pressures inherent to constant volume combustion, in combustion chambers (74E)-(74T), to simultaneously produce a plurality of initially separate, coaxial and annular, virtually continuous gas flow streams for efficiently converting combustion gas energy into useful work. The combustor (74), rotating very slowly relative to the speed of the main turbine shaft, with individual combustion chambers (74E)-(74T) equally spaced circumferentially about the center of rotation, provides sufficient time for complete combustion, supplying gas metering valve plate (46) and gas distributor plate (102) with gases at predetermined pressure steps for a high production rate of high frequency, coaxial, annular gas streams driving turbine wheels (66), (68) and (70) juxtaposed coaxially with paired nozzles plates (48), (104) and (112). The turbine wheels and the nozzle plates incorporate conventional axial flow blades and nozzle vane air foils, but said vanes and blades are arranged in a plurality of radially displaced concentric patterns with circular separators for accommodating a plurality of annular gas streams. After passing through the nozzle plates and the turbine wheels, spent gas streams merge into predetermined equal temperature, equal pressure and equal velocity confluence zones and exhaust to atmosphere. The turbine assembly provides short and smooth passages for the air and gas processes. Alternate embodiments include a different number of turbine wheels and nozzle plates, and other embodiments incorporate optional features similar to existing technology equipment and heat recovery cycles.
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