Preventing Losses
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REDUCING FRICTION
Preventing Losses
Single-cylinder CV Engine 16 for Friction Measurement in Fired Operation
Interview with Uwe Lahl
Hiroki Inoue, Yoshiaki
Jochen Schumacher,
[Baden-Württemberg
Takigahira [Eagle Industry],
Edward Werninghaus
Ministry of Transport]
Ron Dircks [Eagle Simrax]
[KS Kolbenschmidt]
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“We don’t have time to disregard Low-friction Sealing 24 any 28 System option for climate protection” for E-drives
Reducing friction losses is an important means of improving efficiency in combustion engines and in electrified and electric powertrains. Over the past few years new materials and complex simulations have led to significant progress being made, but the pressure to introduce further advances remains high. One key approach that is also relevant to friction involves making improvements on a system level rather than a component level. By taking an overall perspective and focusing on the whole design it is possible to exploit as yet unused potential. In order to achieve this, Kolbenschmidt has put the emphasis on improving measurement systems in the classic field of friction minimization in combustion engines. The company has presented a single-cylinder floating liner commercial vehicle engine that for the first time allows measurements triggered by the crank angle to be made in the piston assembly of a running engine. This makes it possible to accurately identify the frictionrelated benefits of new components and to provide more reliable forecasts of the resulting improvements in fuel consumption. The article by Eagle Industry highlights the importance of tribological improvements in electric powertrains. In the case of dynamic seals, for example, engineers often have to make a compromise between reducing friction and leak-free operation. In order to help resolve this conflict, the company has developed mechanical face seals that effectively seal the liquid-cooled rotor of an electric motor and the adjacent transmission with almost no friction losses.
© EKK
In the interview, Dr. Uwe Lahl, Chief of Staff at the Baden-Württemberg Ministry of Transport, highlights possible solutions that will allow us to achieve our climate targets. Introducing synthetic fuels and taking a non-ideological, technology-neutral approach to the realistic options available will both play a central role. Thomas Schneider
MTZ worldwide 11|2020
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