Details
| Original language | English |
|---|---|
| Article number | 132 |
| Number of pages | 18 |
| Journal | Lubricants |
| Volume | 12 |
| Issue number | 4 |
| Publication status | Published - 16 Apr 2024 |
Abstract
For future internal combustion engines, driven by regenerative fuels, efficiency is more important than ever. One approach to reduce the losses inside the piston cylinder unit (PCU) is to improve the alignment of the liner and the piston. Therefore, a cylinder liner with a free form was developed at the Institute of Technical Combustion (ITV) of the Leibniz University Hannover which compensates radial and linear deformations along the stroke. The layout is based on a FEM simulation. The liner was manufactured by the Institute of Production Engineering and Machine Tools (IFW) of Leibniz University of Hannover with a novel turn-milling process. The liner was investigated on the heavy-duty Floating-Liner engine of ITV with a displacement of 1991 ccm and a bore diameter of 130 mm. The experimental results show improvement in the friction losses over the whole engine map in the range of 9% and up to 17.3% compared to a serial liner. Sealing efficiency could be improved up to 28.8%, depending on the operational point. Overall, the investigation aims for lower fuel consumption which would in result fewer emissions.
Keywords
- cylinder liner, floating liner, friction, heavy duty, honing, internal combustion engine, piston group, tribology
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Lubricants, Vol. 12, No. 4, 132, 16.04.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental Investigation of a Free-Form Honed Cylinder Liner for Heavy-Duty Engines
AU - Stelljes, Frederik
AU - Pohlmann-Tasche, Florian
AU - Dinkelacker, Friedrich
PY - 2024/4/16
Y1 - 2024/4/16
N2 - For future internal combustion engines, driven by regenerative fuels, efficiency is more important than ever. One approach to reduce the losses inside the piston cylinder unit (PCU) is to improve the alignment of the liner and the piston. Therefore, a cylinder liner with a free form was developed at the Institute of Technical Combustion (ITV) of the Leibniz University Hannover which compensates radial and linear deformations along the stroke. The layout is based on a FEM simulation. The liner was manufactured by the Institute of Production Engineering and Machine Tools (IFW) of Leibniz University of Hannover with a novel turn-milling process. The liner was investigated on the heavy-duty Floating-Liner engine of ITV with a displacement of 1991 ccm and a bore diameter of 130 mm. The experimental results show improvement in the friction losses over the whole engine map in the range of 9% and up to 17.3% compared to a serial liner. Sealing efficiency could be improved up to 28.8%, depending on the operational point. Overall, the investigation aims for lower fuel consumption which would in result fewer emissions.
AB - For future internal combustion engines, driven by regenerative fuels, efficiency is more important than ever. One approach to reduce the losses inside the piston cylinder unit (PCU) is to improve the alignment of the liner and the piston. Therefore, a cylinder liner with a free form was developed at the Institute of Technical Combustion (ITV) of the Leibniz University Hannover which compensates radial and linear deformations along the stroke. The layout is based on a FEM simulation. The liner was manufactured by the Institute of Production Engineering and Machine Tools (IFW) of Leibniz University of Hannover with a novel turn-milling process. The liner was investigated on the heavy-duty Floating-Liner engine of ITV with a displacement of 1991 ccm and a bore diameter of 130 mm. The experimental results show improvement in the friction losses over the whole engine map in the range of 9% and up to 17.3% compared to a serial liner. Sealing efficiency could be improved up to 28.8%, depending on the operational point. Overall, the investigation aims for lower fuel consumption which would in result fewer emissions.
KW - cylinder liner
KW - floating liner
KW - friction
KW - heavy duty
KW - honing
KW - internal combustion engine
KW - piston group
KW - tribology
UR - http://www.scopus.com/inward/record.url?scp=85191696192&partnerID=8YFLogxK
U2 - 10.3390/lubricants12040132
DO - 10.3390/lubricants12040132
M3 - Article
AN - SCOPUS:85191696192
VL - 12
JO - Lubricants
JF - Lubricants
SN - 2075-4442
IS - 4
M1 - 132
ER -