Experimental analysis of oil flow and drag torque generation in disengaged wet clutches

L Pointner-Gabriel, E Schermer, T Schneider… - Scientific Reports, 2023 - nature.com
Fundamental knowledge of the oil flow in a disengaged wet clutch is essential for optimizing
the cooling performance and the drag losses. However, no fundamental information on the …

Application of CFD to model oil–air flow in a grooved two-disc system

W Wu, Z ** Review
L Pointner-Gabriel, K Voelkel, K Stahl - Lubricants, 2025 - mdpi.com
Wet brakes and clutches are crucial drivetrain components widely used in many sectors.
However, their drag losses can account for a considerable share of the overall drivetrain …

Experimental investigation of drag loss behavior of dip-lubricated wet clutches for building a data-driven prediction model

L Pointner-Gabriel, M Menzel, K Voelkel… - Scientific Reports, 2024 - nature.com
Fundamental knowledge of wet clutches' drag loss behavior is essential for designing low-
loss clutch systems. In contrast to the widely investigated injection lubrication, more …

Multiphase drag modeling for prediction of the drag torque characteristics in disengaged wet clutches

S Pahlovy, SF Mahmud, M Kubota, M Ogawa… - … International Journal of …, 2014 - sae.org
The undesired Drag Torque (DT) which is developed due to the shearing of fluid film in
between the disk and separator plate reduces the efficiency of a transmission and increases …

Mathematical model and experimental evaluation of drag torque in disengaged wet clutches

S Iqbal, F Al-Bender, B Pluymers… - International Scholarly …, 2013 - Wiley Online Library
When the clutch is in disengaged condition, ideally no torque should be transmitted.
However, in reality, the relative motion between the disks causes viscous shearing of fluids …

Experimental research on drag torque for single-plate wet clutch

H Jibin, P Zengxiong, W Chao - 2012 - asmedigitalcollection.asme.org
The relative motion between the friction and separate plates in a disengaged wet clutch
causes viscous drag torque when the lubrication fluid flows through the clearance …