The new measurement technology from the Kistler Group has now deployed for pre-chamber spark plugs to enhance their efficiency and reduce CO2 emissions
Kistler Group has introduced a pre-chamber spark plugs to the range of applications for its fiber-optic combustion analysis. Kistler to make engines more efficient by improving their fuel consumption and reducing CO2 emissions. The move will enable development engineers more options to press ahead with in-depth research on engines with pre-chamber spark plugs.
Fiber-optic analysis involves placing small viewing windows in the outer wall of the pre-chamber to capture a detailed record of processes in the engine so that optimisation potential can be identified. The new design developed by Kistler allows analysis of more complex processes, taking account of different fuel mixes: until now, this measurement technology was only available for commonly used spark plugs. Optical analyses provide spatial and time-based visualisation of processes in the combustion chamber – such as knocking or pre-ignition – so researchers can understand them in detail.
By introducing this new technology for pre-chamber spark plugs, Kistler is supporting automobile manufacturers with in-engine process optimisation, and is also helping to advance research into alternative combustion processes: needs that must be met if the EU emission targets for 2021 are to be achieved. In 2021, the EU will introduce legal regulations to limit CO2 emissions from passenger cars to 95 grams of CO2 per kilometer. The new limits can be met by combining an electric motor with a combustion engine, so hybrid designs are leading the way to the future.
However, more efforts are needed to exploit the potential of the combustion engine. One way of achieving this is to deploy pre-chamber spark plugs to boost the efficiency of spark ignition engines. This ignition principle already has a long track record of success in large engines and motor sport – and now, it is set to make inroads into mass production.
Dr. Frank Wytrykus, Kistler's expert on optical technologies, said to optimise fuel consumption and emissions in the engines of the future, there is need to precisely understand the pre-chamber ignition processes and the sensors make the effects of combustion visible, so that the company experts can work on eliminating the disruptive factors that reduce efficiency.