公开(公告)号：US20230313706A1

公开(公告)日：2023-10-05

申请号：US17656975

申请日：2022-03-29

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Julien SIMARD-BERGERON

IPC: F01D25/16 ,  F01D25/18 ,  F02B39/14 ,  F02C6/12 ,  F04D29/046 ,  F16C17/02 ,  F16C17/18 ,  F16C17/24

CPC classification number: F01D25/162 ,  F01D25/18 ,  F02B39/14 ,  F02C6/12 ,  F04D29/046 ,  F16C17/02 ,  F16C17/18 ,  F16C17/24 ,  F05D2220/40 ,  F05D2240/50 ,  F05D2260/98 ,  F16C2360/24

Abstract: A journal shaft for a journal bearing assembly of an aircraft engine includes a shaft body extending along a longitudinal axis. The shaft body has a radially outer surface and a radially inner surface radially spaced apart from the longitudinal axis to define an inner cavity. An oil pocket is defined in the radially outer surface. One or more passages extend through the shaft body from the radially inner surface to the oil pocket to provide fluid communication between the inner cavity and the oil pocket. The oil pocket includes a radially inner base surface and interconnecting transition surfaces extending between the radially inner base surface of the oil pocket and the radially outer surface of the shaft body. The interconnecting transition surfaces form a fluid-dynamically smooth and edgeless transition to the radially outer surface of the journal shaft.

公开(公告)号：US11066983B2

公开(公告)日：2021-07-20

申请号：US16311959

申请日：2017-03-21

Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

Inventor： Takaya Futae ,  Yuta Ishii ,  Yuya Kojima

IPC: F02B39/14 ,  F01D25/16 ,  F01D25/18 ,  F02B39/00 ,  F16C17/02 ,  F16C17/26 ,  F16C33/10 ,  F16N7/36 ,  F16N7/38 ,  F16N7/40 ,  F16N13/00 ,  F16C27/02 ,  F16C35/02 ,  F16C17/18 ,  F01M11/02

Abstract: Provided are: a lubricating device for a bearing; and an exhaust turbosupercharger, wherein a bearing device (36) is provided with a housing (15) with a hollow shape, and journal bearings (21, 22) which rotatably support a rotary shaft (14) arranged inside the housing (15), the bearing device (36) being further provided with: a third feeding passage (43) and a fourth feeding passage (44) through which lubricant is fed toward outer circumferential surfaces (21b, 22b) of the journal bearings (21, 22); a sixth feeding passage (46) through which lubricant is fed toward a space section (16A) between the journal bearings (21, 22); and a guide section which guides, toward inner circumferential surfaces (21c, 22c) of the journal bearings (21, 22), the lubricant fed from the sixth feeding passage (46) to the space section (16A).

公开(公告)号：US10975727B2

公开(公告)日：2021-04-13

申请号：US16171144

申请日：2018-10-25

Applicant: MAN ENERGY SOLUTIONS SE

Inventor： Sven Brandt ,  Jan-Christoph Haag ,  Lutz Aurahs ,  Christoph Heinz ,  Hannes Benetschik

IPC: F01D25/16 ,  F16C33/10 ,  F16C17/18

Abstract: A bearing bush of a turbocharger for radially mounting a shaft of the turbocharger. The bearing bush on an inner surface facing the shaft to be mounted, which forms a running surface of the bearing bush, has a microstructuring of multiple cup-shaped recesses at least in sections. The recesses have a maximum depth.

公开(公告)号：US10648467B2

公开(公告)日：2020-05-12

申请号：US15835066

申请日：2017-12-07

Applicant: IHI CORPORATION

Inventor： Kenji Takamiya ,  Seiei Masuda

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C11/00 ,  F04C14/02 ,  F04C14/24 ,  F04C2/14 ,  F01C21/02 ,  F16C25/04 ,  F04C2/08 ,  F04C2/10 ,  F04C15/00 ,  F16C17/02 ,  F16C17/18

Abstract: A gear pump is comprised of a driving gear, a first driven gear and second driven gears mutually in mesh; a housing accommodating them and defining a flow path including a first suction port, a second suction port, a first pressure port and a second pressure port; a floating comprising a thrust face bearing a floating force exerted by fluids and first, second and third pressure-receiving faces respectively oriented in a direction opposed to the thrust face; a first pressurizing chamber having fluid connection with the first pressure port or the second pressure port to exert pressure on the first pressure-receiving face; a second pressurizing chamber having fluid connection with the first suction port to exert pressure on the second pressure-receiving face; and a third pressurizing chamber having fluid connection with the second suction port to exert pressure on the third pressure-receiving face.

公开(公告)号：US10578029B2

公开(公告)日：2020-03-03

申请号：US15842076

申请日：2017-12-14

Applicant: Rolls-Royce Deutschland Ltd & Co KG

Inventor： Mats Rudolf Mojem

IPC: F02C9/22 ,  F01D17/16 ,  F16C3/12 ,  F16C3/28 ,  F16C17/02 ,  F16C17/18

Abstract: An adjustment device for adjusting several guide vanes of the engine, wherein the adjustment device includes at least one adjusting element that couples with the guide vanes and is mounted in an adjustable manner, a connection element that couples with the adjusting element, as well as a crank shaft for controlling an adjusting movement of the adjusting element, and the crank shaft has at least one coupling element which couples with the connection element and at which the connection element is hinged to transform a rotational movement of the crank shaft about a longitudinal axis of the crank shaft into an adjusting movement of the adjusting element for adjusting the guide vanes. The crank shaft has a modular design with at least two shaft modules that are arranged behind each other along the longitudinal axis of the crank shaft.

公开(公告)号：US10480576B2

公开(公告)日：2019-11-19

申请号：US16078243

申请日：2016-03-01

Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

Inventor： Yuya Kojima ,  Tatsuya Ishizaki ,  Yosuke Dammoto ,  Yoji Akiyama

IPC: F16C33/10 ,  F16C17/02 ,  F01D25/16 ,  F01M1/18 ,  F01D25/18 ,  F16C17/18 ,  F16C17/26 ,  F01M11/00 ,  F01M11/02

Abstract: The present invention improves the drainability of lubricating oil. The present invention comprises: a rotating shaft (14); a journal bearing that is provided to the rotating shaft (14) and rotationally supports the rotating shaft (14); a bearing housing part that houses the journal bearing; and a drain oil space chamber (47) that acts as an oil drainage passage that communicates with the bearing housing part, is provided along the periphery of the rotating shaft (14), and is formed to open downward. Within a region that is in and above a horizontal plane H that passes through the center of the rotating shaft (14), the smallest cross-sectional area of the oil drainage passage in a radial-direction cross-section thereof is on the anterior side in the rotational direction of the rotating shaft (14) with respect to a vertical plane P that passes though the center (O) of the rotating shaft (14), and the largest cross-sectional area of the oil drainage passage in the radial-direction cross-section is on the posterior side in the rotational direction of the rotating shaft (14) with respect to the vertical plane that passes through the center (O) of the rotating shaft (14).

公开(公告)号：US10428691B2

公开(公告)日：2019-10-01

申请号：US15173638

申请日：2016-06-04

Applicant: IHI CHARGING SYSTEMS INTERNATIONAL GMBH

Inventor： Wolfgang Koehl ,  Richard Markert ,  Martin Kreschel

IPC: F01D25/16 ,  F16C35/06 ,  F16C17/02 ,  F16C23/10 ,  F01D25/04 ,  F02C7/06 ,  F02B5/02 ,  F02B33/40 ,  F02D37/00 ,  F04D29/053 ,  F04D29/056 ,  F04D29/28 ,  F04D29/06 ,  F16C23/06 ,  F16C17/18 ,  F16C17/26 ,  F01D5/02 ,  F02B37/00

Abstract: In an exhaust gas turbocharger, comprising a first radial bearing and a second radial bearing configured for the radial support of a shaft of the exhaust gas turbocharger, wherein the first radial bearing comprises a bearing axis extending in alignment with the bearing axis of the second radial bearing which is arranged spaced from the first radial bearing, a third radial bearing with a third bearing axis, which is extends parallel to, but at a distance (E) from, the first bearing axis and the second bearing axis is arranged between the first and second radial bearings.

公开(公告)号：US09677603B2

公开(公告)日：2017-06-13

申请号：US14698396

申请日：2015-04-28

Applicant: Bosch Mahle Turbo Systems GmbH & Co. KG

Inventor： Ruediger Kleinschmidt ,  Ulrich Siol ,  Alexander Baeuerle ,  Thomas Striedelmeyer ,  Joerg Eckert ,  Christoph Butscher

IPC: F16C17/02 ,  F01D25/16 ,  F16C33/04 ,  F16C35/02 ,  F16C35/10 ,  F16C17/18

CPC classification number: F16C17/02 ,  F01D25/16 ,  F01D25/162 ,  F05D2220/40 ,  F05D2250/293 ,  F16C17/022 ,  F16C17/18 ,  F16C17/26 ,  F16C33/04 ,  F16C33/046 ,  F16C35/02 ,  F16C35/10 ,  F16C2240/26 ,  F16C2360/24

Abstract: An exhaust gas turbocharger may include a bearing housing and a rotor. The rotor may have a shaft mounted in the bearing housing via two radial bearing bushes. Each radial bearing bush may have an inner surface facing the shaft. The inner surface may have a single chamfer, where the single chamfers of the two radial bearing bushes face one another, or two chamfers, where one of the two chamfers for each of the two radial bearing bushes facing one another are larger than the other of the two chamfers for each of the two radial bearing bushes facing away from one another.

公开(公告)号：US09664063B2

公开(公告)日：2017-05-30

申请号：US14404700

申请日：2013-05-24

Applicant: CONTINENTAL AUTOMOTIVE GMBH

Inventor： Ralf Boening ,  Ralph-Maurice Koempel ,  Christian Schmidt ,  Juergen Krottenthaler ,  Stefan Reuter

IPC: F16C23/10 ,  F16C17/18 ,  F04D29/05 ,  F01D25/16 ,  F01D25/18 ,  F16C17/24 ,  F04D29/057 ,  F04D29/056

CPC classification number: F01D25/166 ,  F01D25/18 ,  F04D29/056 ,  F04D29/057 ,  F05D2220/40 ,  F05D2240/54 ,  F16C17/02 ,  F16C17/18 ,  F16C17/24 ,  F16C2360/24

Abstract: A turbocharger has an exhaust gas turbine, a fresh-air compressor and a bearing seat. A rotor shaft that is equipped with the turbine and the compressor wheel is rotatably mounted in the bearing seat by way of at least one radial bearing. The radial bearing is a floating bush bearing with a hollow-cylindrical floating bush body positioned between a bearing seat of the bearing housing and the rotor shaft. The floating bush body is provided with a defined imbalance in order to counteract an imbalance of the turbo rotor.

公开(公告)号：US09638059B2

公开(公告)日：2017-05-02

申请号：US13695920

申请日：2011-05-09

Applicant: Martin Becker ,  André Seiler

Inventor： Martin Becker ,  André Seiler

IPC: F01D25/16 ,  F01D25/18 ,  F16C17/26 ,  F16C17/18 ,  F02B39/00

CPC classification number: F01D25/16 ,  F01D25/166 ,  F01D25/186 ,  F02B39/00 ,  F05D2220/40 ,  F05D2230/50 ,  F05D2250/70 ,  F16C17/02 ,  F16C17/18 ,  F16C17/26 ,  F16C2240/70 ,  F16C2360/24

Abstract: In the generic exhaust-gas turbocharger, the turbine-side and compressor-side radial bearing bush are of identical design. A more compact bearing space, and improvements in acoustics and rotor dynamics, are achieved by providing different bearings on the turbine and compressor sides.