US 12,000,453 B2
Torsional vibration damper, clutch disc, and clutch
Gerd Ahnert, Sasbach (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/044,848
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Mar. 29, 2019, PCT No. PCT/DE2019/100296
§ 371(c)(1), (2) Date Oct. 1, 2020,
PCT Pub. No. WO2019/196984, PCT Pub. Date Oct. 17, 2019.
Claims priority of application No. 10 2018 108 441.2 (DE), filed on Apr. 10, 2018.
Prior Publication US 2021/0108702 A1, Apr. 15, 2021
Int. Cl. F16F 15/12 (2006.01); F16F 15/121 (2006.01)
CPC F16F 15/1204 (2013.01) [F16F 15/121 (2013.01); F16F 2222/04 (2013.01); F16F 2230/0064 (2013.01); F16F 2232/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A torsional vibration damper comprising:
a rotation axis;
an input part comprising a first ramp profile;
an output part comprising a second ramp profile;
an intermediate part comprising a pair of axially offset intermediate part elements, each of the pair of intermediate part elements comprising:
a third ramp profile; and
a fourth ramp profile;
a first roller contacting the first ramp profile and the third ramp profile; and
a second roller contacting the second ramp profile and the fourth ramp profile, wherein:
the first roller and the second roller are arranged to roll along their respective ramp profiles when the output part rotates about the rotational axis relative to the input part; and
the intermediate part is radially translated by the first roller and the second roller when the output part rotates about the rotational axis relative to the input part.