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公开(公告)号：US12252992B2
公开(公告)日：2025-03-18
申请号：US18594065
申请日：2024-03-04
Applicant: General Electric Company
Inventor： Bhaskar Nanda Mondal , John Joseph Rahaim , Thomas Moniz , Steven A. Ross , Joel Kirk , Scott Hunter , Daniel Fusinato
Abstract: A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flow path through the engine core.
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公开(公告)号：US20240218803A1
公开(公告)日：2024-07-04
申请号：US18594065
申请日：2024-03-04
Applicant: General Electric Company
Inventor： Bhaskar Nanda Mondal , John Joseph Rahaim , Thomas Moniz , Steven A. Ross , Joel Kirk , Scott Hunter , Daniel Fusinato
CPC classification number: F01D11/18 , F01D11/025 , F01D25/005 , F05D2240/11 , F05D2240/55 , F05D2260/30 , F05D2300/5021 , F05D2300/6033 , Y02T50/60
Abstract: A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flow path through the engine core.
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公开(公告)号：US20220349316A1
公开(公告)日：2022-11-03
申请号：US17864534
申请日：2022-07-14
Applicant: General Electric Company
Inventor： Bhaskar Nanda Mondal , John Joseph Rahaim , Thomas Moniz , Steven A. Ross , Joel Kirk , Scott Hunter , Daniel Fusinato
Abstract: A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flow path through the engine core.
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