Methods and apparatus for water injection in a turbine engine
AssigneeGeneral Electric Company
InventorsStephen R. Payling, Robert P. Coleman, Curtis L. Brown
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for injecting water into a turbine engine are described. In one embodiment, water injection apparatus is provided for injecting water into the gas flow through the engine, e.g., at a high pressure and/or low pressure compressor inlet. The water injection apparatus includes a plurality of nozzles arranged so that water injected into the gas flow by the nozzles results in substantially uniformly reducing the temperature of the gas flow at the high pressure compressor outlet.
Claims35
An engine, comprising:
- a low pressure compressor
- a high pressure compressor downstream from said low pressure compressor;
- and
- water injection apparatus for injecting water into the gas flow at a location upstream from said low pressure compressor, said water injection apparatus comprising a plurality of nozzles arranged so that water injected into the gas flow by said nozzles results in substantially uniform radial and circumferential temperature reductions of the gas flow at the high pressure compressor outlet;
- wherein said nozzles comprise long nozzles and short nozzles, said nozzles arranged in alternating configuration so that one of said short nozzles is circumferentially intermediate each pair of said long nozzles.
An engine, comprising:
- a low pressure compressor;
- a high pressure compressor downstream of said low pressure compressor;
- a combustor located downstream of said high pressure compressor;
- a high pressure turbine downstream of said combustor;
- a low pressure turbine downstream of said high pressure turbine;
- and
- water injection apparatus for injecting water into the gas flow at a location upstream from said low pressure compressor, said water injection apparatus comprising a plurality of nozzles, a water reservoir in flow communication with each said nozzle, and a water valve for controlling the flow of water from said reservoir to said nozzles, said nozzles arranged so that water injected into the gas flow by said nozzles results in substantially uniform radial and circumferential temperature reductions of the gas flow at the high pressure compressor outlet;
- wherein said nozzles comprise long nozzles and short nozzles, said nozzles arranged in alternating configuration so that one of said short nozzles is circumferentially intermediate each pair of said long nozzles.
Water injection apparatus for injecting water into the gas flow of an engine including a low pressure compressor and a high pressure compressor downstream from the low pressure compressor, said apparatus comprising a plurality of nozzles configured to be secured to the engine upstream of the low pressure compressor so that water injected into the gas flow by said nozzles results in substantially uniform radial and circumferential temperature reductions of the gas flow at the high pressure compressor outlet;
- wherein said nozzles comprise long nozzles and short nozzles, said nozzles arranged in alternating configuration so that one of said short nozzles is circumferentially intermediate each pair of said long nozzles when secured to the engine.
Dependencies are inferred from the claim text.