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公开(公告)号：US11428122B1
公开(公告)日：2022-08-30
申请号：US17209631
申请日：2021-03-23
发明人： Guy Lefebvre , Herve Turcotte
摘要： A thermal shielding arrangement for a turbine probe comprises a heat shield having first and second mating portions axially engaged in overlapping relationship around a probe extending through an air cavity between an exhaust case and a turbine housing. The first mating portion is provided on a radially outer surface of the turbine housing. The second mating portion projects radially inwardly from a radially inner surface of the exhaust case.
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公开(公告)号：US10907490B2
公开(公告)日：2021-02-02
申请号：US16352019
申请日：2019-03-13
发明人： Roger Huppe , Marc Tardif , Herve Turcotte
摘要： An air supply system is configured to provide cooling air with reduced heat pickup to a turbine rotor of a gas turbine engine. The system comprises a first cooling passage extending between a hollow airfoil and an internal pipe extending through the airfoil. The airfoil extends through a hot gas path. A second cooling passage extends through the internal pipe. The coolant flowing through the second cooling passage is thermally isolated from the airfoil hot surface by the flow of coolant flowing through the first cooling passage. The first and second cooling passages have a common output flow to a rotor cavity of the turbine rotor where coolant flows from the first and second cooling passages combine according to a predetermined ratio.
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公开(公告)号：US10041741B2
公开(公告)日：2018-08-07
申请号：US14922247
申请日：2015-10-26
发明人： Herve Turcotte , Kevin Ng , Jean Dubreuil
摘要： A heat exchanger defines an annulus divided by a plurality of radial plates extending longitudinal along the annulus, into a plurality of channels. A first group of the channels form an oil passage and a second group of channels form a fuel passage. The channels in the respective first and second groups are circumferentially alternately positioned one to another, and heat transfer from the oil passage to the fuel passage takes place through the radial plates.
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公开(公告)号：US11339679B1
公开(公告)日：2022-05-24
申请号：US17209666
申请日：2021-03-23
发明人： Guy Lefebvre , Remy Synnott , Herve Turcotte , Gabriel Naccache
摘要： A thermal shielding arrangement for a turbine probe extending through an exhaust case and a turbine housing of a gas turbine engine comprises a sleeve having a radially inner end fixedly mounted to the turbine housing and a radially outer end floatingly received in a probe boss on the exhaust case. The radially outer end of the sleeve opens to an air cavity between the exhaust case and a surrounding engine nacelle to allow for air circulation around the probe.
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公开(公告)号：US10273812B2
公开(公告)日：2019-04-30
申请号：US14974338
申请日：2015-12-18
发明人： Roger Huppe , Marc Tardif , Herve Turcotte
摘要： An air supply system is configured to provide cooling air with reduced heat pickup to a turbine rotor of a gas turbine engine. The system comprises a first cooling passage extending between a hollow airfoil and an internal pipe extending through the airfoil. The airfoil extends through a hot gas path. A second cooling passage extends through the internal pipe. The coolant flowing through the second cooling passage is thermally isolated from the airfoil hot surface by the flow of coolant flowing through the first cooling passage. The first and second cooling passages have a common output flow to a rotor cavity of the turbine rotor where coolant flows from the first and second cooling passages combine according to a predetermined ratio.
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公开(公告)号：US11549443B2
公开(公告)日：2023-01-10
申请号：US17006214
申请日：2020-08-28
摘要： An apparatus of an aircraft engine having lubricated moving components is provided. The apparatus comprises a housing having a lubricant cavity for receiving lubricant and a service port cavity, the housing defining a selectively openable service port for accessing the service port cavity. A shaft is mounted for rotation about a rotational axis to the housing. A seal is mounted about the shaft forming a partition between the lubricant cavity and the service port cavity. A vent channel extends between the lubricant cavity and the service port cavity.
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公开(公告)号：US11480212B2
公开(公告)日：2022-10-25
申请号：US16567298
申请日：2019-09-11
发明人： Paul Weaver , John Wilson , Michel Desjardins , Herve Turcotte
摘要： An assembly comprising: a nut having a cylindrical body with a threaded external surface, an axially extending interior tool socket, and a radially outwardly extending flange at a proximal end of the cylindrical body; a first component including a hollow cylindrical tube with a connector end having a radially inwardly extending shoulder, the radially inwardly extending shoulder abutting the radially outwardly extending flange of the nut in an assembled position; and a second component including an annular hub with a threaded internal surface matching the threaded external surface of the nut, and an annular mounting surface abutting the connector end of the propeller shaft in the assembled position.
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公开(公告)号：US10024239B2
公开(公告)日：2018-07-17
申请号：US14805508
申请日：2015-07-22
发明人： Herve Turcotte
IPC分类号： B01D35/147 , B64D37/34 , F02C7/22 , F02M37/22
摘要： A gas turbine engine has a fuel system including an apparatus. The apparatus includes a housing containing at least a fuel filter assembly and a bypass valve assembly within the housing. The bypass valve assembly selectively opens or closes a bypass passage which bypasses a filtering unit of the fuel filter assembly. In accordance with one aspect, respective first and second fuel flows are introduced into the housing to be merged and mixed therein prior to entering the fuel filter assembly or the bypass valve assembly. In accordance with another aspect, an ice accretion device is provided within the housing to allow ice formation and accumulation thereon as a result of a transient icing occurrence when the mixed fuel flows in the housing pass through the ice accretion device to enter the fuel filter assembly.
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