System to feed cooling air into a gas turbine rotor
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/18
F01D-005/18
출원번호
US-0450263
(2001-12-05)
우선권정보
IT-0002719 (2000-12-15)
국제출원번호
PCT//EP01/14709
(2003-06-12)
§371/§102 date
20030612
(20030612)
국제공개번호
WO02//48525
(2002-06-20)
발명자
/ 주소
Casoni, Andrea
출원인 / 주소
Nuovo Pignone Holding S.p.A.
대리인 / 주소
Nixon &
인용정보
피인용 횟수 :
1인용 특허 :
7
초록▼
A system to feed cooling air to a gas turbine, wherein the cooling air is taken from a high-pressure source, inside the gas turgine, and is conveyed to radial accelerators (129, which give rise to the tangential acceleration of the air in the direction of the peripheral motion of the rotor surface.
A system to feed cooling air to a gas turbine, wherein the cooling air is taken from a high-pressure source, inside the gas turgine, and is conveyed to radial accelerators (129, which give rise to the tangential acceleration of the air in the direction of the peripheral motion of the rotor surface. After it has been accelerated to the peripheral sepped of the rotor, the cooling air enters radial holes (13), and, whilst passing radially through the radial holes (13), undergoes a reduction in the quantity of tangential motion, Subsequently, the cooling air is released into the hollow rotor, with a correspondingly reduced outlet radius (14). A series of labyrinth seals combined with brush seals separate the chamber for combined with brush seals separate the chamber for feeding of air to the radial holes (13), from the low-pressure environment around the pad #2 (15) of the said gas turbine.
대표청구항▼
1. System to feed cooling air to a gas turbine, wherein the cooling air is taken from a high-pressure source, inside the said gas turbine, and is conveyed to radial accelerators (12), which give rise to the tangential acceleration of the air in the direction of the peripheral motion of the rotor sur
1. System to feed cooling air to a gas turbine, wherein the cooling air is taken from a high-pressure source, inside the said gas turbine, and is conveyed to radial accelerators (12), which give rise to the tangential acceleration of the air in the direction of the peripheral motion of the rotor surface, after it has been accelerated to the peripheral speed of the rotor, the said cooling air enters radial holes (13), and whilst passing radially through the said radial holes (13), undergoes a reduction in the quantity of tangential motion, by means of the law of forced vortex, and, subsequently, the said cooling air is released into the hollow rotor, with a correspondingly reduced outlet radius (14), characterised in that it comprises a labyrinth seal combined with a brush seal (17) to separate the chamber to feed the air to the radial holes (13), from the chamber which communicates with the first rotor space in a way to form an intermediate chamber which prevents mixing of the leakage flow rate from the axial compressor, with the cooling flow of the accelerators.2. System to feed cooling air according to claim 1, characterised in that a series of labyrinth seals combined with brush seals separate the chamber for feeding of air to the radial holes (13), from the low pressure environment around the pad #2 (15) of the said gas turbine.3. System to feed cooling air according to claim 1, characterised in that it comprises a labyrinth seal combined with a brush seal (21) to separate the compressor delivery from the chamber (22) which communicates with the first rotor space (20).4. System to feed cooling air according to claim 1, characterised in that the leakage flow rate is controlled by means of use of the said labyrinth seals combined with brush seals, wherein the brush seal is downstream from the labyrinth seal, in order to improve the overall efficiency of the said system.5. System to feed cooling air according to claim 1, characterised in that the said cooling air is obtained from the inner surface of the discharge diffuser (11) of the axial compressor.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (7)
Lenahan Dean T. (Cincinnati OH) Corsmeier Robert J. (Cincinnati OH) Sterman ; deceased Albert P. (late of Cincinnati OH by Florence G. Sterman ; executor), Air modulation apparatus.
Bourneuf John J. (Jamaica Plain MA) Lenahan Dean T. (Cinncinnati OH) Demers Daniel E. (Ipswich MA) Plemmons Larry W. (Fairfield OH), Gas turbine engine cooling supply circuit.
Bertrand Jean-Louis (Livry S/Seine FRX) Charier Gilles A. (La Grande Paroisse FRX) Guyonnet Xavier J.A. (St. Fargeau Ponthierry FRX) Picard Jean-Louis (Vaux le Penil FRX), Turbo aero engine provided with a device for heating turbine disks on revving up.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.