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公开(公告)号：US12012972B2
公开(公告)日：2024-06-18
申请号：US17872242
申请日：2022-07-25
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover
CPC classification number: F04D29/444 , F02C6/08 , F04D17/10 , F04D29/284 , F04D29/682
Abstract: The compressor section can have a centrifugal impeller operable to rotate around an axis, the centrifugal impeller having blades, a compressor inlet oriented towards the front and axially relative the axis, a compressor outlet oriented radially outwardly relative the axis, a diffuser having a diffusion flow path, a diffuser inlet in fluid flow communication with the compressor outlet, a diffusion flow path between a rear wall and a front wall; a collector extending circumferentially around the axis, having a collector inlet in fluid communication with the diffuser outlet, and a collector outlet; and hollow structural members protruding rearwardly from the rear wall, the hollow structural members being circumferentially interspaced from one another, each hollow structural member having a length extending radially along the rear wall and having an internal conduit extending radially inwardly along the length.
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公开(公告)号：US11851202B1
公开(公告)日：2023-12-26
申请号：US17808389
申请日：2022-06-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover , Remy Synnott
Abstract: The gas turbine intake can have a swirl housing having an inlet portion fluidly connecting an exhaust conduit, an annular outlet defined around a central axis and fluidly connecting a turbine gas path, a swirl path extending circumferentially around the central axis from the inlet portion to a circumferential outlet, the circumferential outlet fluidly connected back into the inlet portion, and vanes located in the swirl housing, the vanes circumferentially interspaced from one another relative the central axis and located radially inwardly from the swirl path relative the central axis, the swirl path being free of the vanes.
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公开(公告)号：US11821361B1
公开(公告)日：2023-11-21
申请号：US17858289
申请日：2022-07-06
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover , Remy Synnott
CPC classification number: F02C7/04 , F01D9/065 , F05D2220/32 , F05D2230/72 , F05D2240/127
Abstract: The gas turbine intake can have a swirl housing assembly with a tangential inlet fluidly connecting an exhaust conduit, an annular outlet defined around a central axis and fluidly connecting a turbine gas path, a swirl path extending around the central axis and between the tangential inlet and the annular outlet, the swirl housing assembly having a proximal portion defining a first portion of the swirl path, a distal portion defining a second portion of the swirl path, vanes located in the swirl housing assembly, the vanes circumferentially interspaced from one another relative the central axis and extending between the proximal portion and the distal portion, the proximal portion fastened to the distal portion via a plurality of fasteners, a gasket sandwiched between the proximal portion and the distal portion by the plurality of fasteners, the gasket extending in a radial plane relative the central axis.
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公开(公告)号：US11891947B2
公开(公告)日：2024-02-06
申请号：US17808385
申请日：2022-06-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover , Remy Synnott
CPC classification number: F02B37/02 , F01D9/026 , F04D29/386 , F04D29/42 , F05D2220/323
Abstract: A gas turbine intake has a swirl housing having a tangential inlet fluidly connecting an exhaust conduit, an annular outlet defined around a central axis and fluidly connecting a turbine gas path, a swirl path extending circumferentially around the central axis from the tangential inlet, and vanes located in the swirl housing, the vanes circumferentially interspaced from one another relative the central axis, each vane having a twisted and flat body having a length extending from a leading end to a trailing end, the leading end being oriented mainly circumferentially and axially at the swirl path, the trailing end being oriented mainly axially and radially at the annular outlet, the twisted and flat body twisting between leading and trailing ends around the central axis, around a radial axis perpendicular to the central axis, and around a tangential axis perpendicular to both the central axis and the radial axis.
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公开(公告)号：US11421597B2
公开(公告)日：2022-08-23
申请号：US16656750
申请日：2019-10-18
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Gabriel Naccache , Christopher Gover , Alexander Smith , Alain Martel , Matthieu Boudreau
Abstract: A tangential on-board injector (TOBI) having: a body defining an annular passageway, discharge nozzles; a rotating component configured to be mounted for rotation relative to the body about an axis of rotation; a seal extending between the body and the rotating component; and flow passages circumferentially distributed about the axis of rotation and in fluid communication with the nozzles and the seal, the flow passages located upstream of the seal relative to a flow of the cooling air circulating toward the seal from the plurality of discharge nozzles, each of the flow passages extending along a respective passage axis, the passage axis of at least one of the flow passages having a tangential component at an outlet of the at least one of the flow passages that is different than a tangential component of an exit flow axis of at least one of the plurality of discharge nozzles.
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Patent Agency Ranking
公开(公告)号：US11326516B2
公开(公告)日：2022-05-10
申请号：US17034179
申请日：2020-09-28
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jeremie Barberger , Christopher Gover
Abstract: A secondary air system for an aircraft engine comprises an air flow path communicating between a source of pressurized cooling air and an air consuming component. A filtering baffle is disposed in the air flow path upstream from the air consuming component. The filtering baffle has a monolithic body at least partly made of a cellular material, the cellular material including a non-stochastic lattice structure having a plurality of cells arranged in an ordered, repeating manner for trapping particulate matter contained in a flow of contaminated air.
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公开(公告)号：US12065950B1
公开(公告)日：2024-08-20
申请号：US18296491
申请日：2023-04-06
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover
CPC classification number: F01D9/026 , F01D21/045 , F01D25/243 , F05D2220/323 , F05D2240/14 , F05D2260/31
Abstract: A scroll case is configured as a structural component to carry structural loads from other engine components, such as an internal containment ring, an exhaust casing and an engine tailpipe.
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公开(公告)号：US20240060459A1
公开(公告)日：2024-02-22
申请号：US17891740
申请日：2022-08-19
Applicant: Pratt & Whitney Canada Corp.
Inventor： Christopher Gover
CPC classification number: F02K1/82 , F01D25/26 , F05D2220/323 , F05D2240/14 , F05D2240/12
Abstract: An exhaust assembly for a gas turbine engine includes an outer exhaust case, an inner exhaust case, and a hollow strut. The outer exhaust case forms an outer cavity radially outward of the outer exhaust case. The inner exhaust case is positioned radially inward of the outer exhaust case. The outer exhaust case and the inner exhaust case form a core flow path. The inner exhaust case forms a centerbody. The hollow strut includes a strut body, an inlet, an outlet, and an internal passage. The strut body is connected to the outer exhaust case and the inner exhaust case. The internal passage extending through the strut body from the inlet to the outlet. The inlet is located at the outer radial end. The inlet is in fluid communication with the outer cavity. The internal passage is configured to direct gas from the outer cavity to the outlet.
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公开(公告)号：US11815020B2
公开(公告)日：2023-11-14
申请号：US17813745
申请日：2022-07-20
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Gabriel Naccache , Christopher Gover , Alexander Smith , Alain Martel , Matthieu Boudreau
CPC classification number: F02C7/12 , F01D5/081 , F01D5/082 , F02C7/22 , F05D2220/32 , F05D2240/35 , F05D2240/55
Abstract: A tangential on-board injector (TOBI), comprising: a body defining an annular passageway to receive cooling air, the TOBI defining a plurality of discharge nozzles; a rotating component mounted for rotation relative to the body about an axis of rotation; a seal extending between the body and the rotating component; a plurality of vanes circumferentially distributed about the axis of rotation and located downstream of the plurality of discharge nozzles relative to a flow of the cooling air circulating toward the seal from the plurality of discharge nozzles and upstream of the seal; and flow passages defined between the plurality of vanes, a flow passage of the flow passages extending along a passage axis, the passage axis having a tangential component at an outlet of the flow passage that is different than a tangential component of an exit flow axis of a nozzle of the plurality of discharge nozzles.
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公开(公告)号：US11767792B1
公开(公告)日：2023-09-26
申请号：US17808317
申请日：2022-06-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Guy Lefebvre , Christopher Gover
CPC classification number: F02C7/06 , F01D25/162 , F01D25/24 , F02C3/08 , F02C7/20 , F05D2220/32 , F05D2230/60 , F05D2240/14 , F05D2240/50
Abstract: There is provided a load transfer interface in an aircraft engine for transferring a load from a bearing housing to an engine casing. The load transfer interface comprises a first component operatively coupled to and receiving the load from the bearing housing. The first component has a first annular body with a spigot extending axially from the first annular body. The interface comprises a second component operatively coupled to the first component and to the engine casing. The second component has a second annular body with a spigot-receiving cavity disposed therein. The spigot-receiving cavity is shaped and positioned to receive the spigot of the first component. The second component receives the load from the first component and transfers the load to the engine casing.
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