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US 2014/0174222 A1Published application
Ball screw with central protrusion
AssigneeThyssenkrupp Presta AG
InventorsAlexander Kiforiuk, Dennis Kontner, Frank Birkwald
Life of this patent
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Abstract
The invention relates to a power-steering system with a bail screw drive, having a threaded spindle (10) and a ball nut, which are connected together in a movable manner by means of balls (14) arranged in the respective threads. A flank diameter of the thread (11) of the threaded spindle (10) is designed to be variable over the length of the threaded spindle (10).
Claims11
A power-steering system ball screw drive, including:
- a threaded spindle;
- and
- a ball nut arranged on the threaded spindle in a movable manner,
- wherein the threaded spindle and the ball nut each have a thread for partial acceptance of balls, joining the threaded spindle to the ball nut, and wherein the thread has a variable height over a length of the threaded spindle.
1 more element
Dependencies are inferred from the claim text.