Gaseous injector preparation method for cold engine start

Abstract

An engine system includes a gaseous fuel injection system including a plurality of gaseous fuel injectors configured to inject gaseous fuel for combustion in a plurality of cylinders and an electronic control system operatively coupled with the gaseous fuel injection system. The electronic control system is configured to determine whether to perform a break loose operation of the plurality of injectors, energize each of the plurality of gaseous fuel injectors with multiple voltage pulses in response to a determination to perform the break loose operation, and after the energization commence ignition to rotate the engine.

Dependencies are inferred from the claim text.