Electromechanical actuator for generating an axial actuating force

US11852237B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Matthias Reisch · Ravensburg, DE
• Andreas Füßl · Kressbronn am Bodensee, DE
• Jürgen Wafzig · Bermatingen, DE
• Andreas Wendzel · Grünkraut, DE
• Lorenz Fischer · Friedrichshafen, DE
• Holger Gohmert · Grünkraut, DE
• Uwe Fehr · Friedrichshafen, DE
• Michael Arnegger · Grünkraut, DE

Key dates

• Filing date: Mar 6, 2020
• Grant date: Dec 26, 2023
• Expiry date: Mar 6, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2063/3063
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An electro-mechanical actuator for generating an axial actuation force is provided. The electro-mechanical actuator includes an electric machine having a stator (1) and a rotor (2). The electro-mechanical actuator also includes a spindle drive with a rotary element (6) and with an element that is movable in a translatory manner. A rotation of the rotary element (6) may result in a translatory motion of the element that is movable in a translatory manner. The rotor (2) and the rotary element (6) of the spindle drive are coupled to each other in a circumferential direction (U) such that a rotation of the rotor (2) results in a rotation of the rotary element (6) of the spindle drive (5). A rotational play (8) is formed between the rotor (2) and the rotary element (6) of the spindle drive in the circumferential direction (U).