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A stator arrangement, or distributor, for a turbine machine is disclosed which includes a guide blade. The blade shaft is supported to be able to pivot around the pivot axis, with a part which is to be guided being situated to the outside. The pivoting device contains a setting ring which is located

A stator arrangement, or distributor, for a turbine machine is disclosed which includes a guide blade. The blade shaft is supported to be able to pivot around the pivot axis, with a part which is to be guided being situated to the outside. The pivoting device contains a setting ring which is located outside a flow channel and which can be pivoted around the turbine axis, and adjusting levers which transmit torque from the setting ring to the blade shaft of each guide blade. The adjusting lever is slipped with one end onto the blade shaft. The other end can be configured as a ball head, the adjusting levers being guided in a groove of the setting ring. The surface which acts on the ball head of the adjusting lever for transmission of torque from the setting ring to the blade shaft of each guide blade can be configured as a ball socket. Exemplary embodiments can yield a uniform large-area pressure distribution by which the wear of the parts which press on one another can be distinctly reduced.

대표청구항 ▼

What is claimed is: 1. Stator arrangement for a turbine machine, comprising: a guide blade configured to pivot around a pivot axis of a blade shaft which is connected to the guide blade; a pivoting setting ring; an adjusting lever for transmitting torque from the setting ring to the blade shaft of

What is claimed is: 1. Stator arrangement for a turbine machine, comprising: a guide blade configured to pivot around a pivot axis of a blade shaft which is connected to the guide blade; a pivoting setting ring; an adjusting lever for transmitting torque from the setting ring to the blade shaft of the guide blade, the adjusting lever being guided with one end configured as a ball head in a groove of the setting ring; and a surface which acts on the ball head of the adjusting lever for transmission of torque from the setting ring to the blade shaft of the guide blade, the surface being configured as a ball socket formed at least partially by a spherical surface on slide elements, the slide elements having a planar surface on an opposing side of the spherical surface and being arranged for translational movement in both the axial and the radial direction in the groove, wherein the groove is bordered at least partially by groove walls which run parallel to one another, and wherein the slide elements are located on opposing sides of the ball head between the ball head and one of the groove walls which run parallel to one another, and wherein the slide elements are made as legs of a guide shoe which encompasses a connecting piece which connects the legs to one another. 2. Stator arrangement as claimed in claim 1, wherein the ball socket has an opening for inserting the ball head of an adjusting lever, with an inside width (L) which is smaller than a ball diameter of the ball head of the adjusting lever. 3. Stator arrangement as claimed in claim 1, wherein the legs of the guide shoe can be elastically deformed when the ball heads are inserted into the ball sockets. 4. An exhaust gas turbocharger, comprising an exhaust gas turbine with a stator arrangement as claimed in claim 1. 5. Exhaust gas turbocharger, comprising a compressor with a stator arrangement as claimed in claim 1 configured as a pretwist compressor for producing a pretwist in an intake region of the compressor. 6. Stator arrangement for a turbine machine, comprising: a guide blade configured to pivot around a pivot axis of a blade shaft which is connected to the guide blade; a pivoting setting ring; an adjusting lever for transmitting torque from the setting ring to the blade shaft of the guide blade, the adjusting lever being guided with one end configured as a ball head in a groove of the setting ring; and a surface which acts on the ball head of the adjusting lever for transmission of torque from the setting ring to the blade shaft of the guide blade, the surface being configured as a ball socket formed at least partially by slide elements, the slide elements being arranged to move in the groove; wherein the ball socket has at least one flattened region which has a distance to the ball center which is smaller than a radius of the ball, and wherein the ball head of the adjusting lever has at least one flattened region which has a distance to the ball center which is smaller than a distance to a ball center of flattened region of the ball socket. 7. Stator arrangement as claimed in claim 6, wherein to reduce a depth of the groove in the setting ring, there is at least one flattened region of the ball head of the adjusting lever on an end of the adjusting lever and there is at least one flattened region of the ball socket opposite the flattened region of the end of the adjusting lever. 8. Stator arrangement as claimed in claim 7, wherein the groove is bordered at least partially by groove walls which run parallel to one another, and wherein the slide elements are located on opposing sides of the ball head between the ball head and one of the groove walls which run parallel to one another. 9. Stator arrangement as claimed in claim 8, wherein the slide elements are made as legs of a guide shoe which encompasses a connecting piece which connects the legs to one another. 10. Stator arrangement as claimed in claim 9, wherein the legs of the guide shoe can be elastically deformed when the ball heads are inserted into the ball sockets. 11. An exhaust gas turbocharger, comprising an exhaust gas turbine with a stator arrangement as claimed in claim 6. 12. Exhaust gas turbocharger, comprising a compressor with a stator arrangement as claimed in claim 6 configured as a pretwist compressor for producing a pretwist in an intake region of the compressor. 13. An apparatus, comprising: a blade configured to pivot around a pivot axis of a blade shaft which is connected to the blade; a pivoting setting ring having a groove; an adjusting lever for transmitting torque from the setting ring to the blade shaft of the blade, the adjusting lever having one end configured as a ball head in the groove of the setting ring; and a surface which acts on the ball head of the adjusting lever for transmission of torque from the setting ring to the blade shaft of the blade, the surface being configured as a ball socket formed at least partially by a spherical surface on slide elements, the slide elements having a planar surface on an opposing side of the spherical surface and being arranged for translational movement in both the axial and the radial direction in the groove, wherein the groove is bordered at least partially by groove walls which run parallel to one another, and wherein the slide elements are located on opposing sides of the ball head between the ball head and one of the groove walls which run parallel to one another, and wherein the slide elements are made as legs of a guide shoe which encompasses a connecting piece which connects the legs to one another.