US 12,305,715 B2
Wet clutch valve arrangement
Christian Von Koenigsegg, Vejbystrand (SE); Dag Bölenius, Ängelholm (SE); Emil Langeland Larsen, Ängelholm (SE); and Ruben Lend, Vejbystrand (SE)
Assigned to KOENIGSEGG AUTOMOTIVE AB, Ängelholm (SE)
Appl. No. 18/270,584
Filed by KOENIGSEGG AUTOMOTIVE AB, Ängelholm (SE)
PCT Filed Jan. 6, 2022, PCT No. PCT/EP2022/050221
§ 371(c)(1), (2) Date Jun. 30, 2023,
PCT Pub. No. WO2022/148824, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 21150530 (EP), filed on Jan. 7, 2021.
Prior Publication US 2024/0068527 A1, Feb. 29, 2024
Int. Cl. F16D 25/12 (2006.01); F16D 25/0638 (2006.01); F16D 43/284 (2006.01); F16D 48/02 (2006.01)
CPC F16D 25/14 (2013.01) [F16D 25/0638 (2013.01); F16D 43/284 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wet clutch for mounting on a shaft having an internal shaft conduit for a hydraulic fluid, wherein the wet clutch comprises:
a clutch hub configured to be mounted on the shaft;
a clutch basket configured to be rotationally supported relative to the shaft;
a clutch pack operatively connecting the clutch hub and the clutch basket;
a front part configured to be fixed relative to the shaft;
an actuator supported by the front part and radially spaced apart from the shaft, wherein the actuator is configured to receive hydraulic fluid from the shaft conduit; and
one or more relief valves connected to the actuator and configured to release the hydraulic fluid, wherein each relief valve has a closed state and an open state, each relief valve being spring-biased to be in the closed state, each relief valve being configured to reduce the spring biasing of the relief valve at a defined rotational speed of the shaft;
wherein each of the one or more relief valves is configured to release the hydraulic fluid above a first rotationally induced pressure in the hydraulic fluid, and wherein the first rotationally induced pressure is below a pressure at which the hydraulic fluid causes the actuator to engage the clutch pack.