US 12,449,016 B2
Crankshaft arrangement with torsional vibration damper
Michael Steidl, Berlin (DE); and Michael Granzin, Hoppegarten (DE)
Appl. No. 18/713,422
Filed by Hasse & Wrede GmbH, Berlin (DE)
PCT Filed Nov. 23, 2022, PCT No. PCT/EP2022/082946
§ 371(c)(1), (2) Date May 24, 2024,
PCT Pub. No. WO2023/094433, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 10 2021 131 087.3 (DE), filed on Nov. 26, 2021.
Prior Publication US 2025/0035183 A1, Jan. 30, 2025
Int. Cl. F16F 15/14 (2006.01)
CPC F16F 15/145 (2013.01) [F16F 2222/06 (2013.01); F16F 2222/08 (2013.01); F16F 2222/12 (2013.01); F16F 2228/063 (2013.01); F16F 2232/02 (2013.01); F16F 2236/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A crankshaft arrangement for a combustion engine, comprising:
a crankshaft;
a torsional vibration damper with a primary mass and an inertia ring;
wherein the primary mass is firmly connected to the crankshaft, and the inertia ring and the primary mass are coupled via a viscous fluid;
wherein the torsional vibration damper is attached to an output end of the crankshaft;
wherein the primary mass is coupled to a secondary coupling via an elastic coupling device;
wherein the torsional vibration damper is coupled to the secondary coupling via a feedback device; and
wherein the secondary coupling is formed as a dual-mass flywheel with a primary flywheel, a secondary flywheel and the elastic coupling device.