The charged oil injecting device for various oil injection engines consists of high-voltage power supply, and insulated oil injector which is electrically insulated from the oil cylinder and injection pump. When powered, a strong electric field is formed between the oil injector and the metal body of cylinder to produce fine and homogeneously-distributed charged oil particles. The present invention can make the combustion in the combustor completely, so that it can reduce fuel oil consumption and environmental pollution. |