Abstract: The invention relates to an adjusting shaft arrangement (1) of a variable turbine geometry turbocharger or waste gate turbocharger having an adjusting shaft (2) which has a fastening section (3); having a lever (4) which is connected to the adjusting shaft (2) via the fastening section (3); having a sleeve (5) which is arranged on a base body (6) of the adjusting shaft (2); and having a seal (7) which is arranged in the region of the base body (6) between the sleeve (5) and the adjusting shaft (2); the main body (6) of the adjusting shaft (2) having a stepped outer contour; and the sleeve (5) having an inner contour with a stepped inner contour which complements the design of the base body (6).

Abstract: The invention relates to a turbocharger (15) comprising a bearing housing (7) which mounts a rotor shaft (12) and has a bearing-housing oil space (13); comprising a compressor housing which is connected to the bearing housing (7) and has a compressor space (14); and comprising a sealing device (20) which is provided for sealing the bearing-housing oil space (13) relative to the compressor space (14) and which has a sealing ring (1) which is arranged in a fixed position in the bearing housing (7) and has two end faces (17, 17?) which interact with associated end faces (10) and (11) of a disc (9) and a sealing bush (16) which are fastened to the rotor shaft (12), wherein the sealing ring (1) is arranged with axial play on the rotor shaft (12) between the disc (9) and the sealing bush (16); and air-delivery devices (2, 3) oriented in opposition are arranged in the end faces (17, 17?) of the sealing ring (1).

Abstract: A turbocharger with a variable turbine geometry device has one or two blade bearing rings. At least one or more fastening elements are provided for fastening the one or two blade bearing rings. The respective fastening element has at least one section formed with a knurl and/or at least one section formed with at least one or several notches.

Abstract: A turbocharger, which is particularly suitable for a motor vehicle, includes: a rotor shaft with a turbine impeller and a compressor impeller disposed thereon. The rotor shaft has a roller bearing assembly for mounting in the housing of the turbocharger.

Abstract: The invention relates to a turbocharger (1) with variable turbine geometry (VTG), comprising a multiplicity of guide blades (7). Each guide blade (7) has a blade lever (19, 19?), wherein the center plane (Em2) of an intermediate region (24; 24?) of the blade lever (19, 19?) is arranged so as to be offset axially along a blade shaft longitudinal axis (L) at a distance (a) from the center plane (Em1) of a first end region (20; 20?) of the blade lever (19, 19?) and of a second end region (23; 23?) of the blade lever (19, 19?), and wherein a recess (26; 26?) is arranged adjacent to the intermediate region (24; 24?) between the first end region (20; 20?) and the second end region (23; 23?).

Abstract: A method for producing a lubricant feed in an axial bearing, wherein the lubricant feed is designed as a channel guiding lubricant from a lubricant pocket of the axial bearing, includes the following steps: preparing an initial axial bearing mold, stamping a groove in the area of the initial mold in which the channel is planned; embossing and putting through material on at least one or both sides of the groove along at least one segment of the groove; stamping the material on the side of the groove toward the groove so that the material and the groove form the channel.

Abstract: The invention relates to an axial bearing (10) comprising at least one or more segments (18) on each of the front side (22) and the rear side (26) thereof, wherein the segments (18) on the opposite sides (22, 26) each are disposed at least partially offset from each other.

Abstract: A securing element includes a head section and a shank. The cross-section of the shank changes in the axial direction in such a way that, by taking into account a qualitative and/or quantitative predetermined bending torque profile in the shank, the cross-section has a substantially uniform bending stress profile in the shank in relation to a securing element with a constant shank cross-section. An exhaust gas turbocharger having variable turbine geometry includes a VTG-guide vane configuration having at least one such securing element and being secured to a housing component of the exhaust gas turbocharger.

Abstract: A vane grille arrangement of an exhaust gas turbocharger with variable turbine geometry, contains at least one carrier ring formed from at least one sheet metal part and used to mount VTG guide vanes, the VTG guide vanes being rotatably mounted in recesses of the carrier ring. Ideally, an exhaust gas turbocharger has such a variable turbine geometry.

Abstract: A turbocharger with a variable turbine geometry, includes at least one rolling body element respectively disposed on an associated fixing element for the variable turbine geometry. A device for adjusting the variable turbine geometry can roll off on the respective rolling body element.

Abstract: A turbocharger has a wastegate duct that can be opened and closed by way of an actuator. The actuator encompasses a closing element that can be pivoted into the wastegate duct to close the same. This allows the required closing force, and hence also the size of the required actuator, to be reduced.

Abstract: A turbomachine, particularly an exhaust gas turbocharger, comprising a compressor wheel arranged in a compressor housing, a turbine wheel arranged in a turbine housing, and a rotor shaft which is guided in a bearing casing and which has fastened thereto the compressor wheel on the one hand and the turbine wheel on the other hand, a rotor-shaft seal being arranged between a turbine-sided end portion of the bearing casing and the rotor shaft.

Abstract: A turbocharger has a turbocharger housing and a through opening for a shaft. The shaft is pivotally supported in the housing by way of a bearing arrangement. Lubricating oil is supplied for lubricating the bearings. A section of the shaft is provided on the outside of at least one bearing, the section forming a gap together with the housing. The gap is configured as a lubricating oil regulator in order to at least reduce a passage of lubricating oil from the sides of the bearing.

Abstract: A turbocharger has a turbocharger housing with a bearing housing and at least one impeller housing. The bearing housing and the impeller housing are screwed together by way of a screw anchor connection, and at least one head of an anchor of the screw anchor connection is covered by a cover element.

Abstract: An axial bearing for a turbocharger contains a through hole for a shaft and at least one at least partially or completely circulating segment section on a first and second side of the axial bearing. At least one bearing surface is disposed in the segment section. At least one oil pocket is on the first side of the axial bearing. The oil pocket is connected to at least one recess opening outwards, the recess being configured such that it connects the oil pocket for oil supply purposes to the respective segment section and the bearing surface(s) thereof on the first and second side of the axial bearing.

Abstract: A turbocharger for a motor vehicle has a compressor housing, a turbine housing, a bearing housing, and at least one flange on the compressor side. The turbine housing is force-locked with the bearing housing by way of a fastening element that is arranged on the flange on the compressor side, thereby allowing the complete automatic assembly of the turbocharger.

Abstract: A turbocharger comprising a cartridge which is arranged in a turbine casing for variable turbine geometry; a bearing housing which is arranged between the turbine casing and a compressor housing of a compressor impeller and in which a bearing assembly is arranged for a shaft which supports the turbine wheel and the compressor impeller; and a spring washer which is arranged between the cartridge and the bearing housing, the spring washer being composed of at least two material layers.

Abstract: The invention relates to an adjusting shaft arrangement (1) of a variable turbine geometry turbocharger or waste gate turbocharger having an adjusting shaft (2) which has a fastening section (3); having a lever (4) which is connected to the adjusting shaft (2) via the fastening section (3); having a sleeve (5) which is arranged on a base body (6) of the adjusting shaft (2); and having a seal (7) which is arranged in the region of the base body (6) between the sleeve (5) and the adjusting shaft (2); the main body (6) of the adjusting shaft (2) having a stepped outer contour; and the sleeve (5) having an inner contour with a stepped inner contour which complements the design of the base body (6).

Abstract: The invention relates to an adjusting ring (1) for adjusting the blades of the VTG distributor of exhaust gas turbochargers, comprising a bearing ring (2) and a lever engagement ring (3) connected to said bearing ring (2), the bearing ring (2) and lever engagement ring (3) being separately manufactured individual parts which are connected to each other by means of a separate connection device (4).

Abstract: A turbocharger of variable turbine geometry, comprising: a vane bearing ring assembly including a vane bearing ring and a disk which can be fixed to the vane bearing ring for creating a flow channel; and at least one support pin which is connected with a first end to the vane bearing ring and which is welded with a second end to the disk which comprises recesses for the support pin end to be welded, the recesses being surrounded by a heat throttle.