| 摘要 |
A fuel injection system for a vessel engine according to the present invention includes: an inductor amplifying the voltage of a battery; a first switching element performing a voltage amplification effect on the inductor with being switched according to a signal applied by a control unit; a condenser being charged with the voltage amplified by the inductor and feeding the voltage as a driving voltage for an injector; a second switching element discharging the voltage charged in the condenser with being switched according to a signal applied by the control unit; an actuator actuating a piezo element with the voltage discharged from the condenser; and a third switching element removing electric current remaining in the actuator when the first switching element and the second switching element are turned off. The fuel injection system for a vessel engine according to the present invention drives the injector using the piezo element, thereby improving responsibility and resettability with regard to switching a valve, excluding an extra charging circuit with the property of the condenser, and maintaining operation thereof with low power. |
