Steering actuator
AssigneeSchaeffler Technologies AG & Co. KG
InventorBenjamin Wuebbolt-Gorbatenko
Life of this patent
Estimating the term…
Abstract
A steering actuator for rear axle steering of a motor vehicle has a spindle drive (5) which comprises pushrods (9) which are connected to a threaded spindle (16) and which are mounted in a housing (6) by means of plain bearings (18), allowing the passage of air, and are connected at each end thereof to an attachment element (12) provided for coupling to a chassis suspension arm, wherein a gaiter (19, 20) is connected on the one side to the housing (6) and on the other side to one of the attachment elements (12) in each case. Each plain bearing (18) is designed as a bearing allowing one revolution of the threaded spindle (16), wherein at least one longitudinal groove (21) abuts one guide bush (23) of the plain bearing (18).
Claims20
A steering actuator for rear axle steering of a motor vehicle, having a spindle drive which comprises pushrods which are connected to a threaded spindle and which are mounted in a housing by means of plain bearings, allowing passage of air, and are connected at ends thereof to an attachment element provided for coupling to a chassis suspension arm, a gaiter being connected on one side to the housing and on another side to one of the attachment elements in each case, wherein at least one of the plain bearings allows one revolution of the threaded spindle, and wherein at least one longitudinal groove abuts a guide bush of the at least one of the plain bearings.
A steering actuator comprising:
- a housing;
- two pushrods connected to a threaded spindle and supported by with respect to the housing by respective plain bearings for axial movement within the housing;
- two forks each connected to a respective pushrod for axial movement therewith;
- and
- two gaiters, each connected to a respective fork and to the housing to define two respective interior spaces which each vary in volume in response to axial movement of the threaded spindle and the pushrods;
- and
- an inner surface of the housing comprises at least one longitudinal groove configured to permit air to move past at least one of two respective plain bearings.
A Steering actuator comprising,
- a housing;
- two pushrods connected to a threaded spindle and supported by with respect to the housing by respective plain bearings for axial movement within the housing,
- two forks each connected to a respective pushrod for axial movement therewith;
- and
- two gaiters, each connected to a respective fork and to the housing to define two respective interior spaces which each vary in volume in response to axial movement of the threaded spindle and the pushrods, and
- at least one of the two gaiters has a pressure compensation element.
Dependencies are inferred from the claim text.