公开(公告)号：US11359512B1

公开(公告)日：2022-06-14

申请号：US17165033

申请日：2021-02-02

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Hervé Turcotte ,  Gabriel Naccache ,  Adam Logan

IPC: F01D25/12 ,  F02C7/06 ,  F02C7/32 ,  F02C7/24 ,  F01D21/00

Abstract: Cooling a torque probe involves an elongated sleeve extending along a sleeve axis between a first sleeve end and a second sleeve end. The sleeve is mountable about the torque probe to define a flow passage between an inner surface of the sleeve and an outer surface of the torque probe. The flow passage is in fluid communication with a flow passage inlet of the sleeve and with a flow passage outlet of the sleeve spaced apart along the sleeve axis from the flow passage inlet. A cooling fluid is configured to flow into the flow passage via the flow passage inlet, through the flow passage along the outer surface of the torque probe to cool the torque probe, and out of the flow passage via the flow passage outlet.

公开(公告)号：US11530645B2

公开(公告)日：2022-12-20

申请号：US17177866

申请日：2021-02-17

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Constantin Nicolinco ,  Gabriel Naccache

IPC: F02C7/12 ,  F28F1/10 ,  F28F13/08

Abstract: A fluid cooler for a gas turbine engine comprises an outer tube having an outer tube inlet at a first end of the fluid cooler and an outer tube outlet at a second end of the fluid cooler. A primary axis of the fluid cooler is defined within the outer tube between the first and second ends of the fluid cooler. A plurality of inner tubes extend within the outer tube between the first second ends of the fluid cooler. The inner tubes have a common inner tube inlet and a common inner tube outlet. The inner tubes extend helically about the primary axis. A first group of the inner tubes are disposed at a first radius from the primary axis and a second group of the inner tubes are disposed at a second radius from the primary axis, the second radius different from the first radius.

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

IPC: F02C7/12 ,  F02C7/22

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.

公开(公告)号：US11525371B2

公开(公告)日：2022-12-13

申请号：US17165046

申请日：2021-02-02

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Hervé Turcotte ,  Gabriel Naccache ,  Adam Logan

IPC: F01D25/12 ,  F02C7/06 ,  F02C7/24 ,  F01D21/00

Abstract: Cooling a torque probe involves an elongated sleeve extending along a sleeve axis between a first sleeve end and a second sleeve end. The sleeve is mountable about the torque probe to define a flow passage between an inner surface of the sleeve and an outer surface of the torque probe. The flow passage is in fluid communication with a flow passage inlet of the sleeve and with a flow passage outlet of the sleeve spaced apart along the sleeve axis from the flow passage inlet. A cooling airflow is configured to flow into the flow passage via the flow passage inlet, through the flow passage along the outer surface of the torque probe to cool the torque probe, and out of the flow passage via the flow passage outlet.

公开(公告)号：US12012893B2

公开(公告)日：2024-06-18

申请号：US17986539

申请日：2022-11-14

Applicant: Pratt & Whitney Canada Corp.

Inventor： Eric S. Durocher ,  Gabriel Naccache

IPC: F02C7/14 ,  F01M5/00 ,  F02C7/06

CPC classification number: F02C7/06 ,  F01M5/002 ,  F02C7/14 ,  F05D2220/32 ,  F05D2260/213 ,  F05D2260/98

Abstract: An apparatus is provided for a gas turbine engine. This apparatus includes a lubricant reservoir, a heat exchanger, a lubricant circuit and a compressed air circuit. The lubricant reservoir includes an internal cavity for storing lubricant. The heat exchanger includes a heat exchange conduit and a compressed air passage. The heat exchange conduit is arranged in the internal cavity. The compressed air passage extends longitudinally through the heat exchange conduit. The lubricant circuit is fluidly coupled with the internal cavity. The compressed air circuit is fluidly coupled with the compressed air passage.

公开(公告)号：US20240159188A1

公开(公告)日：2024-05-16

申请号：US17986515

申请日：2022-11-14

Applicant: Pratt & Whitney Canada Corp.

Inventor： Eric S. Durocher ,  Gabriel Naccache

IPC: F01M5/00 ,  F02C3/04 ,  F02C7/14

CPC classification number: F01M5/002 ,  F02C3/04 ,  F02C7/14

Abstract: An apparatus is provided for a gas turbine engine. This engine apparatus includes a lubricant reservoir, a lubricant circuit and a compressed air circuit. The lubricant reservoir includes an internal cavity, a compressed air passage and a reservoir wall at least partially forming an outer peripheral boundary of the internal cavity. The internal cavity is configured to contain lubricant. The compressed air passage extends within the reservoir wall along at least a portion of the outer peripheral boundary of the internal cavity. The lubricant circuit is fluidly coupled with the internal cavity. The compressed air circuit is fluidly coupled with the compressed air passage.

公开(公告)号：US20240159186A1

公开(公告)日：2024-05-16

申请号：US17986539

申请日：2022-11-14

Applicant: Pratt & Whitney Canada Corp.

Inventor： Eric S. Durocher ,  Gabriel Naccache

IPC: F02C7/06 ,  F01M5/00 ,  F02C7/14

CPC classification number: F02C7/06 ,  F01M5/002 ,  F02C7/14 ,  F05D2220/32 ,  F05D2260/213 ,  F05D2260/98

Abstract: An apparatus is provided for a gas turbine engine. This apparatus includes a lubricant reservoir, a heat exchanger, a lubricant circuit and a compressed air circuit. The lubricant reservoir includes an internal cavity for storing lubricant. The heat exchanger includes a heat exchange conduit and a compressed air passage. The heat exchange conduit is arranged in the internal cavity. The compressed air passage extends longitudinally through the heat exchange conduit. The lubricant circuit is fluidly coupled with the internal cavity. The compressed air circuit is fluidly coupled with the compressed air passage.

公开(公告)号：US11873758B1

公开(公告)日：2024-01-16

申请号：US17976397

申请日：2022-10-28

Applicant: Pratt & Whitney Canada Corp.

Inventor： Eric S. Durocher ,  Gabriel Naccache

IPC: F02C7/141 ,  F01D9/04

CPC classification number: F02C7/141 ,  F01D9/041

Abstract: An apparatus is provided for a gas turbine engine. This apparatus includes a vane array and a heat exchanger integrated with the vane array. The vane array includes an inner platform, an outer platform and a plurality of vanes. The inner platform extends circumferentially about a centerline and forms an inner peripheral boundary of a flowpath through the vane array. The outer platform extends circumferentially about the centerline and forms an outer peripheral boundary of the flowpath through the vane array. The vanes extend across the flowpath between the inner platform and the outer platform. The heat exchanger includes a passage following a tortuous trajectory along a first wall of the vane array.

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

IPC: F01D5/08 ,  F02C7/12 ,  F02C7/22

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.

公开(公告)号：US11339679B1

公开(公告)日：2022-05-24

申请号：US17209666

申请日：2021-03-23

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Guy Lefebvre ,  Remy Synnott ,  Herve Turcotte ,  Gabriel Naccache

IPC: F01D17/02 ,  F01D25/24 ,  F02C7/24 ,  F02C7/28

Abstract: 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.