Disk spring for a variable turbine geometry of an exhaust gas turbocharger
AssigneeBMTS Technology GmbH & Co. KG
InventorsDaren Bolbolan, Kinh T. Pham
Life of this patent
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Abstract
A disk spring may include an annular base body, a central longitudinal axis of which defines an axial direction of the base body. A profile of the base body in a profile plane containing the central longitudinal axis may have a wave-shaped contour with two minima including a radially inner minimum and a radially outer minimum and with an intermediate maximum disposed between the two minima. The wave-shaped contour may extend from a radially inner end point to a radially outer end point. The radially inner end point may be arranged offset in the axial direction with respect to the radially outer end point.
Claims20
A disk spring, comprising:
- an annular base body, a central longitudinal axis of which defines an axial direction of the base body;
- wherein a profile of the base body in a profile plane containing the central longitudinal axis has a wave-shaped contour with two minima including a radially inner minimum and a radially outer minimum and with an intermediate maximum disposed between the two minima, the wave-shaped contour extending from a radially inner end point to a radially outer end point, the radially inner end point arranged offset in the axial direction with respect to the radially outer end point.
A variable turbine geometry for an exhaust gas turbocharger, comprising a bearing housing and a disk spring arranged on the bearing housing, the disk spring including an annular base body, a central longitudinal axis of which defines an axial direction of the base body;
- wherein a profile of the base body in a profile plane containing the central longitudinal axis has a wave-shaped contour with two minima including a radially inner minimum and a radially outer minimum and with an intermediate maximum disposed between the two minima, the wave-shaped contour extending from a radially inner end point to a radially outer end point, the radially inner end point arranged offset in the axial direction with respect to the radially outer end point.
An exhaust gas turbocharger for an internal combustion engine of a motor vehicle, comprising a compressor, a turbine, and a variable turbine geometry, the variable turbine geometry including a bearing housing and a disk spring arranged on the bearing housing, the disk spring including an annular base body, a central longitudinal axis of which defines an axial direction of the base body;
- wherein a profile of the base body in a profile plane containing the central longitudinal axis has a wave-shaped contour with two minima including a radially inner minimum and a radially outer minimum and with an intermediate maximum disposed between the two minima, the wave-shaped contour extending from a radially inner end point to a radially outer end point, the radially inner end point arranged offset in the axial direction with respect to the radially outer end point.
Dependencies are inferred from the claim text.