Patent ID: 11878744
Assignee: ZF FRIEDRICHSHAFEN AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A steering gear system for a steer-by-wire steering device of a motor vehicle, the steering gear system comprising:
a spindle drive arranged within a housing,
the spindle drive having a spindle and a spindle nut,
the spindle defining a longitudinal axis,
the spindle nut being axially fixed relative to the housing, the spindle nut engaging the spindle and being rotatable about the longitudinal axis such that rotation of the spindle nut axially displaces the spindle relative to the spindle nut;
the spindle nut being directly rotatably supported, relative to the housing, by an energy store such that the spindle nut is at least one of:
either maintainable in a zero position or within a range around the zero position, and
rotatable back to the zero position.