US Patent No: 4,249,371

Number of patents in Portfolio can not be more than 2000

Method and apparatus for dissipating heat in gas turbines during shut-down

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Abstract

An accumulation of heat which takes place in gas turbines during deceleration of turbine components, such as during shut-down, may be dissipated by flowing a supply of cooling air through the turbine stages. The cooling air is selectively supplied after the supply of combustion air and fuel has been discontinued. The cooling air is preferably flowed through the combustion chambers prior to entry into the turbine stages so that the cooling air is initially pre-heated. Additional air may preferably be supplied to the final ring of blades of each stage or of the final stage of a multi-staged turbine.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BBC BROWN, BOVERI & COMPANY, LIMITEDBADEN578

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Romeyke, Norbert Lampertheim, DE 2 29

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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CLEAN ENERGY SYSTEMS, INC. (13)
6,247,316 Clean air engines for transportation and other power applications 15 2000
6,389,814 Hydrocarbon combustion power generation system with CO2 sequestration 180 2000
6,824,710 Working fluid compositions for use in semi-closed brayton cycle gas turbine power systems 7 2001
6,637,183 Semi-closed brayton cycle gas turbine power systems 43 2001
6,622,470 Semi-closed brayton cycle gas turbine power systems 22 2001
6,523,349 Clean air engines for transportation and other power applications 14 2001
6,598,398 Hydrocarbon combustion power generation system with CO2 sequestration 22 2002
6,868,677 Combined fuel cell and fuel combustion power generation systems 16 2002
7,043,920 Hydrocarbon combustion power generation system with CO2 sequestration 31 2003
6,910,335 Semi-closed Brayton cycle gas turbine power systems 31 2003
6,945,029 Low pollution power generation system with ion transfer membrane air separation 6 2003
7,021,063 Reheat heat exchanger power generation systems 4 2004
7,882,692 Zero emissions closed rankine cycle power system 0 2007
 
ALSTOM TECHNOLOGY LTD (2)
6,745,569 Power generation plant with compressed air energy system 34 2002
6,626,637 Cooling method for turbines 1 2002
 
ALLIEDSIGNAL INC. (1)
5,388,396 Low carbon particle producing gas turbine combustor 4 1994
 
ASEA BROWN BOVERI LTD. (1)
5,363,642 Method of operating a gas turbine group 25 1994
 
CONSOLIDATED EDISON COMPANY OF NEW YORK, INC. (1)
4,903,537 Rotor shaft turning apparatus 0 1988
 
HAMILTON SUNDSTRAND CORPORATION (1)
6,941,760 Start system for expendable gas turbine engine 1 2003
 
ILD, INC. (1)
6,582,184 Turbine controls testing device 3 2001
 
SIEMENS AKTIENGESELLSCHAFT (1)
6,691,503 Gas turbine having first and second combustion chambers and cooling system 4 2002
 
UNITED TECHNOLOGIES CORPORATION (1)
5,127,222 Buffer region for the nacelle of a gas turbine engine 19 1990
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,905,810 Rotor shaft turning apparatus 0 1989