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公开(公告)号：US12116898B2
公开(公告)日：2024-10-15
申请号：US18160117
申请日：2023-01-26
CPC分类号： F01D11/24 , F01D11/18 , F05D2220/323 , F05D2240/11 , F05D2240/55 , F05D2260/201
摘要： Turboprop engines include a housing, a propeller arranged at a forward end of the housing, and a rotor assembly arranged within the housing, the rotor assembly comprising at least one rotor having a plurality of rotor blades. A blade shroud is arranged radially outward from the rotor assembly and positioned relative to the rotor blades such that a tip clearance is defined between tips of the rotor blades and an inner diameter surface of the blade shroud. A shroud cooling duct is defined radially outward from the blade shroud and radially inward from the housing and an air scoop is configured to direct a shroud cooling flow into the shroud cooling duct to pick up heat from the blade shroud and provide cooling thereto.
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公开(公告)号：US20240254890A1
公开(公告)日：2024-08-01
申请号：US18160117
申请日：2023-01-26
CPC分类号： F01D11/24 , F01D11/18 , F05D2220/323 , F05D2240/11 , F05D2240/55 , F05D2260/201
摘要： Turboprop engines include a housing, a propeller arranged at a forward end of the housing, and a rotor assembly arranged within the housing, the rotor assembly comprising at least one rotor having a plurality of rotor blades. A blade shroud is arranged radially outward from the rotor assembly and positioned relative to the rotor blades such that a tip clearance is defined between tips of the rotor blades and an inner diameter surface of the blade shroud. A shroud cooling duct is defined radially outward from the blade shroud and radially inward from the housing and an air scoop is configured to direct a shroud cooling flow into the shroud cooling duct to pick up heat from the blade shroud and provide cooling thereto.
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