Actuator for roll stabilization device, has ring gears thatare integrally formed from housing at planetary gear stages of planetary gear

摘要

The actuator (2) has housing (7) that is provided with a first torsion spring element (5) and a second torsion spring element (6).The second torsion bar spring portion is provided rotatably with respect to an outlet (8) of housing. Astator (10) of an electric motor (9) is in a rotationally fixedto the housing. A rotor (11) is operatively connected by a single-stage planetary gear (12). The ring gears (16,17)are integrally formed from the housing at planetary gear stages (14,15) of the planetary gear.