US 11,891,927 B2
Harmonic drive for an electromechanical camshaft adjuster
Bastian Hain, Creglingen (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/292,527
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Sep. 20, 2019, PCT No. PCT/DE2019/100827
§ 371(c)(1), (2) Date May 10, 2021,
PCT Pub. No. WO2020/094174, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10 2018 128 028.9 (DE), filed on Nov. 9, 2018.
Prior Publication US 2021/0396162 A1, Dec. 23, 2021
Int. Cl. F01L 1/352 (2006.01); F16H 49/00 (2006.01)
CPC F01L 1/352 (2013.01) [F16H 49/001 (2013.01); F01L 2001/3521 (2013.01); F01L 2250/02 (2013.01); F01L 2820/032 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A harmonic drive, comprising:
an internally toothed housing having an internal toothing system;
a pot-shaped output element mounted in the housing;
a pot-shaped, resilient drive element connected to the pot-shaped output element, the pot-shaped, resilient drive element has an external toothing system which meshes with the internal toothing system of the housing;
a spring element that is active between the housing and the pot-shaped output element, said spring element is arranged in an annular chamber delimited radially on an inside by a sleeve section of the resilient drive element, radially on an outside by a cylindrical section of the output element, and in a first axial direction by an annular disc-shaped surface of the housing and in a second, opposite axial direction by a bottom of the output element.