公开(公告)号：US20230184172A1

公开(公告)日：2023-06-15

申请号：US18108127

申请日：2023-02-10

Applicant: Unison Industries, LLC

Inventor： Nilesh Vilas Varote ,  David Raju Yamarthi ,  David Allan Dranschak ,  Eliel Fresco Rodriguez ,  Amit Arvind Kurvinkop

IPC: F02C7/275 ,  F01D25/18 ,  F02C7/06 ,  F02C7/36

CPC classification number: F02C7/275 ,  F01D25/186 ,  F02C7/06 ,  F02C7/36 ,  F05D2260/85 ,  F05D2260/98

Abstract: An air starter for starting a turbine engine that includes a housing, a turbine member, a drive shaft, and at least one bearing assembly. The housing can define an interior where the turbine member rotatably couples to the drive shaft, where the drive shaft or turbine member are rotatably supported by the least one bearing assembly. A scoop wheel located in the interior of the housing provides lubrication to the at least one bearing assembly.

公开(公告)号：US10077830B2

公开(公告)日：2018-09-18

申请号：US15039896

申请日：2014-11-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Michael E. McCune

IPC: F16H57/04 ,  F01D25/18 ,  F02C7/06 ,  F01D25/16 ,  F02C7/36

CPC classification number: F16H57/0479 ,  F01D25/16 ,  F01D25/183 ,  F01D25/186 ,  F02C7/06 ,  F02C7/36 ,  F05D2260/40311 ,  F05D2260/98 ,  F16H57/043 ,  F16H57/0486

Abstract: A gear reduction for a gas turbine engine comprises a carrier driven to rotate gears. The gears are supported by journal bearings. The carrier extends through a transfer bearing, which provides oil to passages within the carrier to supply oil to the gears and to the journal bearings. A device limits leakage oil from the transfer bearing to axial ends of the transfer bearing to a controlled amount. A gas turbine engine is also disclosed.

公开(公告)号：US20180223690A1

公开(公告)日：2018-08-09

申请号：US15455855

申请日：2017-03-10

Applicant: United Technologies Corporation

Inventor： M. Rifat Ullah ,  Robert E. Peters

IPC: F01D25/18 ,  F01D11/02 ,  F16J15/44 ,  F16J15/34 ,  F01D25/22 ,  F01D25/16 ,  F16C32/06 ,  F02C7/28 ,  F16C33/72

CPC classification number: F01D25/186 ,  F01D11/02 ,  F01D25/166 ,  F01D25/168 ,  F01D25/22 ,  F02C7/06 ,  F02C7/28 ,  F05D2220/32 ,  F05D2240/50 ,  F16C32/0633 ,  F16C33/72 ,  F16C2360/23 ,  F16J15/3412 ,  F16J15/342 ,  F16J15/441 ,  Y02T50/671

Abstract: A gas turbine engine includes a fan, a compressor section, a combustor, and a turbine section. The engine also includes a rotating element and at least one bearing compartment including a bearing for supporting the rotating element, a seal for resisting leakage of lubricant outwardly of the bearing compartment and for allowing pressurized air to flow from a chamber adjacent the seal into the bearing compartment. A method and section for a gas turbine engine are also disclosed.

公开(公告)号：US09988977B2

公开(公告)日：2018-06-05

申请号：US14870643

申请日：2015-09-30

Applicant: BorgWarner Inc.

Inventor： Jerud Crandall ,  Gordon Jenks ,  Michael Thayer

IPC: F01D5/04 ,  F02B39/14 ,  F01D25/18

CPC classification number: F02B39/14 ,  F01D5/046 ,  F01D25/186 ,  F05D2220/40 ,  F05D2300/6033

Abstract: A turbocharger (10) includes a shaft (26) rotatably supported within a bearing housing (28), a turbine wheel (22) connected to the shaft (26), and a heat shield (150, 250) disposed between the turbine wheel (22) and the bearing housing (28). The heat shield (150, 250) includes surface features (80, 180) formed on at least one of a sidewall (57) portion thereof and a flange (63) portion thereof that locate the heat shield (150, 250) relative to the bearing housing (28) such that the heat shield (150, 250) is coaxial with the rotational axis of the shaft (26).

公开(公告)号：US20180128318A1

公开(公告)日：2018-05-10

申请号：US15862032

申请日：2018-01-04

Applicant: IHI Corporation

Inventor： Akihiro UEDA

IPC: F16C33/66 ,  F16C35/04 ,  F16C19/00

CPC classification number: F16C33/106 ,  F01D25/186 ,  F02B39/00 ,  F05D2220/40 ,  F16C17/10 ,  F16C27/02 ,  F16C35/02 ,  F16C2360/24

Abstract: A bearing structure includes: a bearing housing having a bearing hole to which an opening portion of an oil supply passage is opened; and a semi-floating bearing including: an annular main body portion, which is received in the bearing hole, and has a bearing surface formed on an inner peripheral surface thereof; and one or a plurality of oil-introducing holes, which are formed in the main body portion to penetrate from an outer peripheral surface of the main body portion to the inner peripheral surface of the main body portion. At least one of the one or the plurality of oil-introducing holes is partially or entirely opposed to the opening portion of the oil supply passage, and is formed into a special hole in which a length in a rotation direction of a shaft is larger than a length in an axial direction of the shaft.

公开(公告)号：US09957839B2

公开(公告)日：2018-05-01

申请号：US14150222

申请日：2014-01-08

Applicant: SNECMA

Inventor： Serge Louis Antunes ,  Arnaud Bessy

IPC: F01D25/18 ,  F16C33/66 ,  F16C19/22 ,  F16C19/26 ,  F16C33/58

CPC classification number: F01D25/186 ,  F16C19/225 ,  F16C19/26 ,  F16C33/583 ,  F16C33/585 ,  F16C33/6685 ,  F16C2360/23

Abstract: The invention relates to an outside ring of a rotary shaft bearing of a turbomachine, comprising a first guiding edge of at least one rolling element, the first guiding edge comprising an inside surface of the first guiding edge, an outside surface of the first guiding edge opposite the inside surface and at least one through-hole passing through the inside surface and the outside surface.Moreover, the inside surface of the first guiding edge forms a shoulder for guiding the rolling element, the through-hole defining a lubricant drainage orifice.

公开(公告)号：US09897004B2

公开(公告)日：2018-02-20

申请号：US13988960

申请日：2011-11-25

Applicant: Amandine Roche ,  Jacques Rene Bart ,  Gerard Philippe Gauthier

Inventor： Amandine Roche ,  Jacques Rene Bart ,  Gerard Philippe Gauthier

IPC: F02C7/06 ,  F01D25/18 ,  B01D45/14 ,  F01D9/06 ,  F01D25/20 ,  F01D25/16 ,  F02C7/14 ,  F01D25/22

CPC classification number: F02C7/06 ,  B01D45/14 ,  F01D9/065 ,  F01D25/16 ,  F01D25/162 ,  F01D25/164 ,  F01D25/166 ,  F01D25/168 ,  F01D25/18 ,  F01D25/183 ,  F01D25/186 ,  F01D25/20 ,  F01D25/22 ,  F02C7/14 ,  F05D2240/55 ,  F05D2260/98 ,  F16N2210/02 ,  Y02T50/671

Abstract: A device for discharging oil from an oil chamber located in a downstream part of a gas turbine engine, the device including: a mechanism discharging at least part of the oil contained in the chamber to exterior of the engine; and a drive mechanism for driving the oil, which allows passage of an air flow that assists in driving the discharge of the oil to the exterior of the engine. The drive mechanism includes: a ventilation port in the downstream part of the engine, such that the oil passes through the ventilation port; and a guide element arranged such that, after the oil has passed through the ventilation port, the oil is directed towards a downstream bleed area of the low-pressure turbine. A turbomachine can include such an oil discharge device.

公开(公告)号：US09822812B2

公开(公告)日：2017-11-21

申请号：US14913711

申请日：2014-08-25

Applicant: BorgWarner Inc.

Inventor： Keun Ryu ,  Zachary Ashton

IPC: F16C17/00 ,  F16C17/03 ,  F01D25/18 ,  F02B39/14 ,  F16C33/02 ,  F16C35/02 ,  F16C17/26 ,  F16C27/02 ,  F16C33/10 ,  F16C17/18

CPC classification number: F16C17/03 ,  F01D25/186 ,  F02B39/14 ,  F05D2220/40 ,  F16C17/035 ,  F16C17/18 ,  F16C17/26 ,  F16C27/02 ,  F16C33/02 ,  F16C33/1045 ,  F16C35/02 ,  F16C2360/24

Abstract: A bearing housing (12) for a turbocharger having a rotatable shaft (14) passing through the bearing housing (12) with journal bearings (30) having tilting pads (40) for supporting the rotatable shaft (14) in the bearing housing (12). The tilting pads (40) may have oil supply holes (50) through each pad (40) to direct lubrication to each pad surface (44). The journal bearings (30) preferably have a circumferential groove (52) on an outer surface of the bearing aligned with the oil supply holes (50) to help feed oil to the oil supply holes (50).

公开(公告)号：US09797409B2

公开(公告)日：2017-10-24

申请号：US14387921

申请日：2013-03-22

Applicant: BorgWarner Inc.

Inventor： Michael Bucking ,  Daniel N. Ward

IPC: F04D29/58 ,  F02B39/14 ,  F01D25/18 ,  F01D25/16 ,  F02C6/12 ,  F04D29/40

CPC classification number: F04D29/5853 ,  F01D25/16 ,  F01D25/186 ,  F02B39/14 ,  F02C6/12 ,  F04D29/403 ,  F05D2220/40 ,  F05D2240/15 ,  Y10T29/49236

Abstract: A system and method is provided in which a turbocharger includes a heat shield wall that is formed together with the bearing housing as a unitary structure. The wall can extend from a main body portion of the bearing housing in a generally radially outward direction. The wall can be spaced from the main body and attached by a plurality of ribs such that chambers are defined therebetween. A circumferential passage can extend through the bearing housing to permit fluid communication between the chambers and outside of the bearing housing. In this way, a fluid outlet from the chambers is provided. As a result of such an arrangement, the need for a separate heat shield is eliminated, which can facilitate the assembly process and special attachment methods associated with a separate heat shield.

公开(公告)号：US09797303B2

公开(公告)日：2017-10-24

申请号：US14391108

申请日：2013-04-01

Applicant: BorgWarner Inc.

Inventor： Daniel N. Ward

IPC: F04D29/056 ,  F02B39/14 ,  F02B37/12 ,  F02B39/00 ,  F16C17/10 ,  F01D25/16 ,  F01D25/18 ,  F04D25/02 ,  F04D29/051

CPC classification number: F02B39/14 ,  F01D25/166 ,  F01D25/186 ,  F02B37/12 ,  F02B39/00 ,  F04D25/024 ,  F04D29/0513 ,  F05D2220/40 ,  F16C17/10 ,  F16C17/26 ,  F16C33/1075 ,  F16C2360/24 ,  Y02T10/144

Abstract: Turbochargers typically have separate hydrodynamic journal and thrust bearings. A turbocharger thrust bearing for a turbocharger is provided that merges the function of a journal bearing into a thrust bearing while maintaining the thrust bearing function to produce a turbocharger with a reduced axial space envelope. Such a thrust bearing includes a bore contoured to have a plurality of taper-land pairs distributed circumferentially about the bore. As a result, the axial length of the turbocharger bearing housing and shaft can be reduced.