초록 ▼

A gas turbine engine comprising a compression means, combustion means, a first turbine, and a second turbine is provided with improved thermal efficiency and power output through bypassing a portion of the engine operating fluid from a first engine position downstream of at least a portion of the co

A gas turbine engine comprising a compression means, combustion means, a first turbine, and a second turbine is provided with improved thermal efficiency and power output through bypassing a portion of the engine operating fluid from a first engine position downstream of at least a portion of the compression means and upstream of a control area of the first turbine and injecting at least a portion of the bypassed flow downstream of the control area of the first turbine. High pressure steam is injected at a position between the engine position initiating the bypass and the engine position injecting the bypass into the fluid stream. The amount of steam injected is substantially equivalent in mass flow to the removed fluid.

대표청구항 ▼

A gas turbine engine including, in operating fluid stream sequence, compression means, combustion means, a first turbine, and a second turbine, the engine comprising: flow bypass means connected to the engine at a first engine position downstream of at least a portion of the compression means and up

A gas turbine engine including, in operating fluid stream sequence, compression means, combustion means, a first turbine, and a second turbine, the engine comprising: flow bypass means connected to the engine at a first engine position downstream of at least a portion of the compression means and upstream of a control area of the first turbine, and adapted to remove from the engine fluid stream a portion of operating fluid at a first pressure; first injection means receiving fluid from the flow bypass means and connected to the engine at a second engine position downstream of the control area of the first turbine, the first injection means adapted to return to the engine fluid stream at least a portion of the operating fluid removed by the bypass means, the operating fluid at the second position being at a second pressure lower than the first pressure; first valve means associated with the bypass means and with the first injection means to adjust the amount of fluid removed from the first position and injected at the second position; second injection means connected to the engine at a third engine position between the first and second positions downstream of the compression means, to inject into the engine operating fluid high energy steam at a pressure greater than operating fluid pressure at the third position, the steam being injected in an amount substantially equivalent in mass flow to the removed fluid; second valve means associated with the second injection means to adjust the amount of steam injected into the engine at the second injection means; and control means responsive to engine operating characteristics to operate the first and second valve means to control the flow of fluid and steam, respectively, through the first and second valve means to maintain engine design fluid flow pressure and volume characteristics.