Abstract: The invention relates to a turbocharger (1) with variable turbine geometry (VTG), having a turbine housing (2) with a supply duct (9) for exhaust gases, having a turbine rotor (4) which is rotatably mounted in the turbine housing (2); and having a guide grate (18), which surrounds the turbine rotor (4) radially at the outside, which has a blade bearing ring (6), which has a multiplicity of guide blades (7) which have in each case one blade shaft (8) mounted in the blade bearing ring (6), which has an adjusting ring (5) which is operatively connected to the guide blades (7) by means of associated blade levers (20) fastened to the blade shafts (8) at one of their ends, with each blade lever (20) having, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and which has a bearing arrangement (28) for fixing the adjusting ring (5) to the blade bearing ring (6), wherein the bearing arrangement (28) is formed as a plain bearing ar

Abstract: The invention relates to an apparatus for soil compaction, especially a vibration tamper and a vibrating plate, comprising a compaction device which is driven via an electric motor, a rechargeable storage unit for electrical power, and an especially vibration-damped guide device. The invention further relates to an apparatus and a method for compaction control, especially for electromotively driven compaction apparatuses.

Abstract: The invention relates to a turbocharger (1) having variable turbine geometry (VTG) having a turbine housing (2) with a supply duct (9) for exhaust gases; having a turbine rotor (4) which is rotatably mounted in the turbine housing (2); and having a guide grate (18) which surrounds the turbine rotor (4) radially at the outside, which guide grate (18) has a blade mounting ring (6) which has a plurality of guide blades (7) which in each case have a blade shaft (8) mounted in the blade mounting ring (6), which guide grate (18) has an adjusting ring (5) which is operatively connected to the guide blades (7) by means of associated blade levers (20) which are fastened to the blade shafts (8) at one of their ends, wherein each blade lever (20) has, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and which guide grate (18) has a stop (25) at least for setting the minimum throughflow through the nozzle cross sections which are fo

Abstract: A vane (234) is provided which reduces leakage of gas in a variable geometry turbocharger (210) from the high pressure side of the vane (234) to the low pressure side of the vane (234). The vane (234) can have a channel (330, 430) along a gas bearing surface (325, 425) for reducing the leakage. The channel (330, 430) can be defined at least in part by sideplates (300, 350). The sideplates (300, 350) can be integrally cast with the rest of the vane (234). At least one of the sideplates (300, 350) can have a hole therein for a vane shaft (228) which allows movement of the vane (234) for gas flow control. The 340 sideplates (300, 350) can have edges (301, 351) that conform to the shape of the gas bearing surface (325, 425).

Abstract: The invention relates to a turbocharger (1) having variable turbine geometry (VTG) having a turbine housing (2) with a supply duct (9) for exhaust gases; having a turbine rotor (4) which is rotatably mounted in the turbine housing (2); and having a guide grate (18) which surrounds the turbine rotor (4) radially at the outside, which guide grate (18) has a blade mounting ring (6) which has a plurality of guide blades (7) which in each case have a blade shaft (8) mounted in the blade mounting ring (6), which guide grate (18) has an adjusting ring (5) which is operatively connected to the guide blades (7) by means of associated blade levers (20) which are fastened to the blade shafts (8) at one of their ends, wherein each blade lever (20) has, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and which guide grate (18) has a stop (25) at least for setting the minimum throughflow through the nozzle cross sections which are fo

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.

Abstract: The invention relates to a turbocharger comprising a turbine casing (2) which has an exhaust-gas inlet opening (3) and an exhaust-gas outlet opening (4); comprising a turbine wheel (5) which is fastened to a shaft (6) and is arranged in the turbine casing (2); comprising a plurality of blades (7; T) which are arranged in the turbine casing (2) between the exhaust-gas inlet opening (3) and the turbine wheel (5), wherein each blade has the following: a profile underside (8; 8?) and a profile top side (9; 9?) which determine the blade thickness, a blade leading edge (10; 10?) at a first intersection of the blade underside (8; 8?) and the blade top side (9; 9?), a blade trailing edge (11; 11?) at a second intersection of the blade underside (8; 8?) and the blade top side (9; 9?), a profile centre line (12; 12?) which is defined by the blade underside (8; 8?) and the blade top side (9; 9?) and runs between them from the blade leading edge (10; 11?) to the blade trailing edge (11; 11?), wherein the profile centre l

Abstract: A sound absorber includes an inner component and an outer component surrounding the inner component, the inner component defining an inner wall provided with apertures, and the outer component defining an outer wall extending along the inner wall. For improving the sound-absorbing properties as well as the flexibility of the sound absorber, the outer wall is implemented as a bellows which, together with the inner wall, defines individual cavities, the apertures of the inner wall opening into the cavities.

Abstract: A fluid flow engine comprises: a turbine housing including at least one supply channel for supplying a driving fluid; at least one turbine rotor rotatably supported in the turbine housing about an axis of rotation; and a guiding grid of variable turbine geometry radially outside and surrounding the turbine rotor. The guiding grid comprises a nozzle ring forming one end limitation of a vane space and a plurality of guiding vanes each being pivoted about a pivoting axis and being supported by the nozzle ring so as to supply an adjustable amount of fluid from the supply channel to the turbine rotor. At least one spacer is connected to the nozzle ring for securing an axial distance for enabling the vanes to wove freely. The spacer includes at least one bolt or pin tat penetrates into the nozzle ring.

Abstract: A fluid flow engine comprises a guiding grid in a housing arrangement for housing a turbine wheel. The housing arrangement has a central discharge channel for the fluid driving the turbine wheel. A ring of guiding vanes located around a central axis is mounted to a support ring round the central axis. The support ring is inserted into the housing arrangement and is fastened in an axially and a radially moveable manner to the housing arrangement by a appropriate fastening device which enables such mobility.

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, said recesses being surrounded by a heat throttle.

Abstract: A fluid flow engine comprises a guiding grid in a housing arrangement for housing a turbine wheel. The housing arrangement has a central discharge channel for the fluid driving the turbine wheel. A ring of guiding vanes located around a central axis is mounted to a support ring around the central axis. The support ring is inserted into the housing arrangement and is fastened in an axially and a radially moveable manner to the housing arrangement by a appropriate fastening device which enables such mobility.

Abstract: A fluid flow engine comprises: a turbine housing including at least one supply channel for supplying a driving fluid; at least one turbine rotor rotatably supported in the turbine housing about an axis of rotation; and a guiding grid of variable turbine geometry radial outside and surrounding the turbine rotor. The guiding grid comprises a nozzle ring forming one end limitation of a vane space and a plurality of guiding vanes each being pivoted about a pivoting axis and being supported by the nozzle ring so as to supply an adjustable amount of fluid from the supply channel to the turbine rotor. At least one spacer is connected to the nozzle ring means for securing an axial distance for enabling the vanes to move freely. The spacer includes at least one bolt or pin that penetrating into the nozzle ring.

Abstract: The present invention relates to a sound absorber comprising an inner component and an outer component surrounding said inner component, said inner component defining an inner wall provided with apertures, and said outer component defining an outer wall extending along said inner wall. For improving the sound-absorbing properties as well as the flexibility of the sound absorber, the outer wall is implemented as a bellows which, together with the inner wall, defines individual cavities, the apertures of the inner wall opening into said cavities.