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公开(公告)号：US20210355956A1
公开(公告)日：2021-11-18
申请号：US16874979
申请日：2020-05-15
Applicant: Garrett Transportation I Inc
Inventor： Brent Donato , Luca Tabacchi , Ryoken Matsuzaki
Abstract: A turbomachine includes a housing and a rotating group that is supported for rotation about an axis within the housing. The rotating group includes a rotor shaft, a wheel, and a fastener that clamps the wheel to the rotor shaft. The fastener is unitary and includes a head and a shank. The shank includes a piloting feature on an arcuate surface that faces radially outward with respect to the axis. The shank is received in the wheel and is attached to the rotor shaft with the piloting feature being piloted to an arcuate inner radial surface of the wheel. The head abuts an axial surface of the wheel for axially clamping the wheel to the rotor shaft.
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公开(公告)号：US20220325745A1
公开(公告)日：2022-10-13
申请号：US17301728
申请日：2021-04-13
Applicant: Garrett Transportation I Inc
Inventor： Scott Aguilar , Luca Tabacchi
Abstract: A journal foil bearing system includes a journal member with a bore and an internal groove. The system includes a shaft received within the bore and supported for rotation relative to the journal member about an axis. The groove extends substantially along the axis. The system also includes at least one biasing foil and a top foil member with at least one arch-bound top foil. The top foil member has a top foil first end and a top foil second end. Additionally, the system includes a foil support insert member that is received within the groove. The foil support insert member includes a spacer member that is disposed between the top foil first and second ends. The spacer member maintains the top foil first and second ends separated, at least, at a distance.
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公开(公告)号：US10677253B2
公开(公告)日：2020-06-09
申请号：US15375597
申请日：2016-12-12
Applicant: Garrett Transportation I Inc.
Inventor： Shawn W Merritt , Luca Tabacchi
IPC: F04D29/051 , F04D29/053 , F02B37/10 , F02C6/12 , F01D5/02 , F04D29/66
Abstract: A turbocharger assembly can include a shaft sleeve that includes a bore that extends between a first end and a second end; a shaft received by the bore of the shaft sleeve where the shaft includes a compressor end and a turbine wheel that defines a turbine end; and a balance collar disposed on the shaft and seated axially between the end of the shaft sleeve and the turbine wheel wherein the balance collar includes a stem portion and a flared portion that includes a sacrificial portion.
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公开(公告)号：US11585374B2
公开(公告)日：2023-02-21
申请号：US17301770
申请日：2021-04-14
Applicant: Garrett Transportation I Inc
Inventor： Luca Tabacchi , Scott Aguilar
Abstract: A journal foil bearing system includes a retainer arrangement with an internal groove extending in a depth direction from the bore of the housing. The internal groove has a first portion and a second portion. The first portion extends further in the depth direction than the second portion and includes a seat surface of the internal groove. The retainer arrangement additionally includes a first top foil end and a second top foil end of the top foil member. The first top foil end is configured to abut the second top foil end to arch-bind the at least one top foil within the bearing system. The first top foil end is received in the first portion of the internal groove and is configured to seat against the seat surface to limit rotation of the first top foil end about the axis. The second top foil end is received in the second portion of the internal groove.
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Patent Agency Ranking
公开(公告)号：US10550849B2
公开(公告)日：2020-02-04
申请号：US15375622
申请日：2016-12-12
Applicant: Garrett Transportation I Inc.
Inventor： Luca Tabacchi , Shawn W Merritt
IPC: F04D29/059 , F02B37/04 , F02B33/40 , F16C35/063 , F01D25/16 , F04D29/056 , F02C6/12 , F02C7/06 , F04D29/20 , F04D25/04 , F04D25/06 , F16C35/06 , F16C35/07
Abstract: A turbocharger assembly can include a shaft sleeve that includes a bore that extends between a compressor end and a turbine end, outer threads that extend to a first axial position from the compressor end, and an outer shoulder at a second, greater axial position from the compressor end; a lock nut that includes inner threads that mate with the outer threads of the shaft sleeve and an axial length that is less than a distance between the compressor end and the first axial position; and a bearing assembly that includes at least one inner race axially located by the outer shoulder of the shaft sleeve and axially located by the lock nut.
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公开(公告)号：US10330002B2
公开(公告)日：2019-06-25
申请号：US15375693
申请日：2016-12-12
Applicant: Garrett Transportation I Inc.
Inventor： Shawn W Merritt , Luca Tabacchi , Neil Lino
IPC: F02B39/14 , F02C6/12 , F01D25/16 , F01D11/00 , F02B37/10 , F04D29/056 , F04D29/059 , F02C7/06
Abstract: A system can include a housing that includes a bore having a longitudinal axis; a cartridge disposed in the bore where the cartridge includes a recess; a bearing assembly disposed in the cartridge where the bearing assembly includes an outer race and rolling elements; and a locating plate attached to the housing where the locating plate includes an extension that is received by the recess of the cartridge.
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公开(公告)号：US20250043817A1
公开(公告)日：2025-02-06
申请号：US18452874
申请日：2023-08-21
Applicant: Garrett Transportation I Inc.
Inventor： Scott Aguilar , Luca Tabacchi , Patrick Rayner , Radu Florea
Abstract: A journal foil bearing system includes a journal housing member including a journal housing wall that is disposed about a bore that extends along an axis. The journal housing wall has an inner diameter surface that faces the bore. The journal housing wall locally along the inner diameter surface has a first relief region. A shaft is disposed within the bore and is supported for rotation. A biasing foil member includes at least one biasing foil received within the bore and disposed radially between the journal housing member and the shaft. A top foil member includes at least one top foil disposed within the bore radially between the at least one biasing foil and the shaft. The biasing foil is disposed circumferentially along the inner diameter surface and the first relief region.
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公开(公告)号：US20220333638A1
公开(公告)日：2022-10-20
申请号：US17301770
申请日：2021-04-14
Applicant: Garrett Transportation I Inc
Inventor： Luca Tabacchi , Scott Aguilar
Abstract: A journal foil bearing system includes a retainer arrangement with an internal groove extending in a depth direction from the bore of the housing. The internal groove has a first portion and a second portion. The first portion extends further in the depth direction than the second portion and includes a seat surface of the internal groove. The retainer arrangement additionally includes a first top foil end and a second top foil end of the top foil member. The first top foil end is configured to abut the second top foil end to arch-bind the at least one top foil within the bearing system. The first top foil end is received in the first portion of the internal groove and is configured to seat against the seat surface to limit rotation of the first top foil end about the axis. The second top foil end is received in the second portion of the internal groove.
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公开(公告)号：US11560922B2
公开(公告)日：2023-01-24
申请号：US17301728
申请日：2021-04-13
Applicant: Garrett Transportation I Inc
Inventor： Scott Aguilar , Luca Tabacchi
Abstract: A journal foil bearing system includes a journal member with a bore and an internal groove. The system includes a shaft received within the bore and supported for rotation relative to the journal member about an axis. The groove extends substantially along the axis. The system also includes at least one biasing foil and a top foil member with at least one arch-bound top foil. The top foil member has a top foil first end and a top foil second end. Additionally, the system includes a foil support insert member that is received within the groove. The foil support insert member includes a spacer member that is disposed between the top foil first and second ends. The spacer member maintains the top foil first and second ends separated, at least, at a distance.
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