Afton's rigorous testing sheds more light on LSPI
Results from Afton's rigorous testing sheds more light on LSPI
What Causes Low-Speed Pre-Ignition?
Afton's studies have confirmed that two mechanisms can lead to LSPI:
Oil or fuel droplets ejected from the piston crevice Combustion chamber deposits
Afton recently published a study focusing on the deposit-induced pre-ignition process. We set out to simulate all the processes involved in deposit-induced pre-ignition to gain deeper insight into the impact of different particle characteristics. We developed our simulation based on established parameters for the following processes:
Paricle heat transer Solid-phse oxidation kinetic
Bulk fuel-air mixture conditions Deposit physical and thermal properties
Complete the form to the left to download the infographic and see how five different deposit characteristics and engine conditions have a significant impact on LSPI.