Patent ID: 9163700
Filing Date: 2015-10-20
Classification: F16H,H02K,Y10T

Abstract:
1. An actuating drive for a flap actuator in a motor vehicle having a drive unit and a brushless DC motor as the electric motor whose outside circumference is less than or equal to 60 mm, the drive unit comprising: a gear train having at least a first gear stage and a last gear stage, wherein the gear train realizes a transmission ratio of greater than one from the electric motor to an output wheel, wherein each gear stage is formed by a gear drive; and wherein in the last gear stage one gear wheel or two gear wheels connected in parallel are provided that each mesh with an upstream gear wheel of the gear train and with the output wheel so as to transmit the torque acting on the last gear stage to this stage via the one gear wheel or over the two gear wheels connected in parallel, wherein the drive unit is accommodated in a housing of the actuator that has at least a first and a second bearing support for the gear wheels of the last gear stage, and to form this last gear stage, the two bearing supports are fitted with the one gear wheel or with the two gear wheels connected in parallel.