US 12,104,671 B2
Crankshaft assembly with a centrifugal pendulum attached to the crankshaft
Mathias Girnus, Bühl (DE); and Pascal Strasser, Aschbach (FR)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 18/008,728
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed May 18, 2021, PCT No. PCT/DE2021/100439
§ 371(c)(1), (2) Date Dec. 7, 2022,
PCT Pub. No. WO2021/254558, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 102020115930.7 (DE), filed on Jun. 17, 2020.
Prior Publication US 2023/0213085 A1, Jul. 6, 2023
Int. Cl. F16F 15/14 (2006.01); F16C 3/10 (2006.01)
CPC F16F 15/145 (2013.01) [F16C 3/10 (2013.01); F16C 2226/60 (2013.01); F16C 2360/22 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A crankshaft assembly for a motor vehicle drive train, the crankshaft assembly comprising:
a crankshaft segment;
a centrifugal pendulum secured to the crankshaft segment, the centrifugal pendulum having a carrier that is secured to the crankshaft segment and at least one pendulum mass that moves relative to the carrier along a predetermined track;
a friction device connected to the carrier which rests on the at least one pendulum mass such that, with a relative movement of the at least one pendulum mass in relation to the carrier, the friction device applies a frictional torque on the pendulum mass counteracting the relative movement; and
the friction device extends over a peripheral section between 90° and 270°.