In order to determine for suitable scavenging type for a hydrogen-fueled free piston engine, Backfire characteristic is analyzed about intake valve opening timing and equivalence ratio by using RICEM(Rapid Intake Compression Expansion Machine) that ha...
In order to determine for suitable scavenging type for a hydrogen-fueled free piston engine, Backfire characteristic is analyzed about intake valve opening timing and equivalence ratio by using RICEM(Rapid Intake Compression Expansion Machine) that has reverse uni-flow scavenging.
As the result, Flame of slow combustion in crevice volume with cause of backfire is effect on intake valve open timing. Backfire is controlled by retarding intake valve opening timing when is retarded from BBDC 7.5㎜ at equivalence ratio from 0.7 to 1.0