Potential analysis for direct gas injection
- Acquisition of suitable injection components and upgrade of existing gas infrastructure
- Injector measurement consisting of injection rate analysis as well as high temperature / high pressure injection chamber tests
- Simulative 0D/1D motor process calculation to support test results
- Evaluation & potential assessment of the individual combustion processes based on engine tests and simulation results
Evaluation of renewable fuels
- Substitution of the conventional pilot fuel with renewable biofuels or synthetically produced PtL fuels
- Existing natural gas supply supplemented with hydrogen blends
- Application of synthetic methane
- Evaluation & potential assessment of engine tests with regenerative fuels
- Thermodynamic evaluation and potential assessment of different synthetic fuels with respect to zero impact emissions using 0D/1D engine process calculation
Simulative basic development of the DI gas combustion process
- Adaptation or new development of existing simulation models for the analysis of combustion processes for medium and high pressure direct gas injection
- 3D CFD engine process simulation of physical and chemical processes
- Special attention to the development of a methane slip model
Post engine methane reduction
- Development of the catalytic coating and the coating process for fiber composite substrates
- Real measurement of catalyst samples in a partial flow exhaust section installed on test bench engine
- Development process for optimum balance between the internal engine process and the performance characteristics of the catalytic converter
Optimizations of the combustion chamber geometry
- Selection of different compression ratios using 0D/1D engine process calculation
- Evaluation & potential assessment of variable compression ratios in engine tests
- Test of novel manufacturing processes on piston prototypes
- Manufacturing of piston segments by means of novel joining processes
- Analysis of the effect of laser-hardened ring grooves on wear and deposit formation
- Piston crown optimization to reduce CH4 emissions
Responsible project partners: Kolbenschmidt, LKV, FVTR
Investigations with variable valve timing
- Analysis of the possibility of reducing methane slip caused by valve overlap by using FCT or variable cam segments
- Potential evaluation of 2-stage turbocharging in combination with variable valve timing using engine simulation and engine tests
