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公开(公告)号：US20240271542A1
公开(公告)日：2024-08-15
申请号：US18169328
申请日：2023-02-15
Applicant: General Electric Company
Inventor： Brandon W. Miller , Arda Unsal , Paul Pezzi
IPC: F01D11/08
CPC classification number: F01D11/08 , F01D5/085 , F05D2220/30 , F05D2220/32 , F05D2240/55
Abstract: A low-pressure (LP) turbine includes an LP shaft, one or more stages of LP turbine stator vanes and LP turbine rotor blades, and one or more interstage seals. The LP turbine rotor blades are coupled to, and rotate with, the LP shaft. The one or more interstage seals are disposed between the one or more stages. The one or more interstage seals each includes a seal disk that extends radially inward of the LP turbine stator vanes. Each seal disk includes an outer shell that supports one or more seal teeth, and the outer shell rotates as the LP shaft rotates.
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公开(公告)号：US20230211885A1
公开(公告)日：2023-07-06
申请号：US18058040
申请日：2022-11-22
Applicant: General Electric Company
Inventor： Narayanan Payyoor , Bhaskar Nanda Mondal , Arda Unsal
CPC classification number: B64D27/10 , F02C7/36 , F02C7/06 , F02C3/04 , F05D2260/40 , F05D2240/60 , F05D2300/614 , F05D2300/211 , F05D2300/2112 , F05D2300/2261 , F05D2300/6033 , F05D2260/96
Abstract: A turbomachine engine including a high-pressure compressor, a high-pressure turbine, a combustion chamber in flow communication with the high-pressure compressor and the high-pressure turbine, and a power turbine in flow communication with the high-pressure turbine. At least one of the high-pressure compressor, the high-pressure turbine, and the power turbine comprises a ceramic matrix composite (CMC) material. The turbomachine engine includes a low-pressure shaft coupled to the power turbine and characterized by a midshaft rating (MSR) between two hundred (ft/sec)1/2 and three hundred (ft/sec)1/2. The low-pressure shaft has a redline speed between fifty and two hundred fifty feet per second (ft/sec). The turbomachine engine is configured to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft.
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公开(公告)号：US12065254B2
公开(公告)日：2024-08-20
申请号：US18348649
申请日：2023-07-07
Applicant: General Electric Company
Inventor： Narayanan Payyoor , Bhaskar Nanda Mondal , Arda Unsal
CPC classification number: B64D27/10 , F02C3/04 , F02C7/06 , F02C7/36 , F05D2240/60 , F05D2260/40 , F05D2260/96 , F05D2300/211 , F05D2300/2112 , F05D2300/2261 , F05D2300/6033 , F05D2300/614
Abstract: A turbomachine engine including a high-pressure compressor, a high-pressure turbine, a combustion chamber in flow communication with the high-pressure compressor and the high-pressure turbine, and a power turbine in flow communication with the high-pressure turbine. At least one of the high-pressure compressor, the high-pressure turbine, and the power turbine comprises a ceramic matrix composite (CMC) material. The turbomachine engine includes a low-pressure shaft coupled to the power turbine and characterized by a midshaft rating (MSR) between two hundred (ft/sec)1/2 and three hundred thirty (ft/sec)1/2. The low-pressure shaft has a redline speed between fifty and two hundred fifty feet per second (ft/sec). The turbomachine engine is configured to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft.
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公开(公告)号：US11724813B2
公开(公告)日：2023-08-15
申请号：US18058040
申请日：2022-11-22
Applicant: General Electric Company
Inventor： Narayanan Payyoor , Bhaskar Nanda Mondal , Arda Unsal
CPC classification number: B64D27/10 , F02C3/04 , F02C7/06 , F02C7/36 , F05D2240/60 , F05D2260/40 , F05D2260/96 , F05D2300/211 , F05D2300/2112 , F05D2300/2261 , F05D2300/6033 , F05D2300/614
Abstract: A turbomachine engine including a high-pressure compressor, a high-pressure turbine, a combustion chamber in flow communication with the high-pressure compressor and the high-pressure turbine, and a power turbine in flow communication with the high-pressure turbine. At least one of the high-pressure compressor, the high-pressure turbine, and the power turbine comprises a ceramic matrix composite (CMC) material. The turbomachine engine includes a low-pressure shaft coupled to the power turbine and characterized by a midshaft rating (MSR) between two hundred (ft/sec)1/2 and three hundred (ft/sec)1/2. The low-pressure shaft has a redline speed between fifty and two hundred fifty feet per second (ft/sec). The turbomachine engine is configured to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft.
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