US 12,071,868 B2
Shaft adjuster
Tobias Preuß, Röttenbach (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/796,321
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Jan. 20, 2021, PCT No. PCT/DE2021/100061
§ 371(c)(1), (2) Date Jul. 29, 2022,
PCT Pub. No. WO2021/151427, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 10 2020 102 265.4 (DE), filed on Jan. 30, 2020.
Prior Publication US 2023/0101883 A1, Mar. 30, 2023
Int. Cl. F01L 1/352 (2006.01)
CPC F01L 1/352 (2013.01) [F01L 2303/01 (2020.05); F01L 2303/02 (2020.05)] 19 Claims
OG exemplary drawing
 
1. A camshaft adjuster, comprising:
a drive gear having a spur gear toothing, and
a clamping gear arranged coaxially relative to the drive gear, the clamping gear loaded by a spring acting in a circumferential direction, and
the spring is configured to axially secure the clamping gear on the drive gear.
 
11. An electromechanical camshaft adjuster, comprising:
a drive gear having a spur gear toothing, and
a clamping gear arranged coaxially relative to the drive gear, the clamping gear biased via a torsion spring arranged within a tangential groove of the drive gear, and
the torsion spring is configured to axially secure the clamping gear on the drive gear, and
the clamping gear is arranged between the spur gear toothing and the torsion spring in an axial direction.
 
16. An electromechanical camshaft adjuster, comprising:
a drive gear having a spur gear toothing and an annular projection, and
a clamping gear arranged on the annular projection and axially retained on the annular projection via a torsion spring configured to load the clamping gear in a circumferential direction, and
the annular projection having:
internal toothing configured for a harmonic drive, and
a tangential groove configured to receive the torsion spring.