Back to results
US 12,116,910 B2Granted
Lift regulator for a variable lift valve gear with two working positions
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsSteffen Lohde, Giovanni Mincione, Sebastian Sperrhacke, Din Wabbals
Life of this patent
Estimating the term…
Abstract
A lift regulator for a variable lift valve gear has a cam contour arranged around an axis of rotation of the lift regulator for deflecting a lift adjustment of the valve gear on rotation of the lift regulator about the axis of rotation. The cam contour has a region deflecting from a resting position, a changeover region, and a region deflecting back to the resting position. A variable lift valve gear and a method for operating the variable lift valve gear are disclosed.
Claims19
A lift regulator for a variable lift valve gear, comprising:
- a cam contour disposed about a rotation axis of the lift regulator so as to deflect a lift adjustment of the valve gear in a rotation of the lift regulator about the rotation axis,
- wherein the cam contour has a deflection region, a diversion region, and an inflection region,
- wherein the cam contour further has a deflection switchover compensation region between the deflection region and the diversion region, and/or an inflection switchover compensation region between the deflection region and the inflection region, and
- wherein, during a rotation about the rotation axis, an absolute value of a gradient (aS) of a variation of a valve lift guide variable (xS, r) of the lift regulator in the deflection switchover compensation region and/or in the inflection switchover compensation region is smaller than in the deflection region and in the diversion region.
1 more element
Dependencies are inferred from the claim text.