• Publications
  • Influence
Hydraulic losses of a gearbox: CFD analysis and experiments
Abstract Efficiency is becoming a main concern in the design of power transmissions. It is therefore important, especially during the design phase, to have appropriate models to predict the powerExpand
  • 43
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Influence of oil temperature on gear failures
Abstract Typical gear failures like wear, scuffing, micropitting and pitting are influenced by the oil temperature in the lubrication system. High temperatures lead to low viscosities and thus thinExpand
  • 109
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Influence factors on gearbox power loss
Purpose – Besides other approaches, fuel savings in automotive applications and energy savings, in general, also require high‐efficiency gearboxes. Different approaches are shown regarding how toExpand
  • 63
  • 3
Influence of immersion depth of dip lubricated gears on power loss, bulk temperature and scuffing load carrying capacity
Investigations were made in back-to-back gear test rigs measuring the beneficial effects of a low oil immersion depth due to reduced drag and churning losses of the gears as well as the detrimentalExpand
  • 44
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Minimised gear lubrication by a minimum oil/air flow rate
Abstract The objectives of the research project were to investigate the limits concerning possible reduction of lubricant quantity in gears without detrimental influence on the load carryingExpand
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Friction reduction of highly-loaded rolling-sliding contacts by surface modifications under elasto-hydrodynamic lubrication
Abstract Due to the operation in mixed and boundary friction, minimization of friction losses in automobile powertrains offers high potential for lowering of greenhouse gas emissions and savingExpand
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Influence of lubricants on power loss of cylindrical gears
The total power loss of gears was measured in a back-to-back gear test rig. Test equipment, measuring principle and evaluation of the data are described. The influence of different lubricant type,Expand
  • 29
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Minimised Gear Lubrication by a Minimum Oil/Air Flow Rate
The objectives of the research project were to investigate the limits concerning possible reduction of lubricant quantity in gears without detrimental influence on the load carrying capacity. TheExpand
  • 18
  • 1
Frictional behaviour of synthetic gear lubricants
In this experimental examination the frictional behaviour of 19 synthetic lubricants was systematically investigated in a twin disc machine as a function of load, sliding speed and oil temperature.Expand
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Flank Load Carrying Capacity and Power Loss Reduction by Minimized Lubrication
TLDR
We investigate the limits concerning possible reduction of lubricant quantity in gears that could be tolerated without detrimental effects on their load carrying capacity. Expand
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