Gas or dual fuel engine

摘要

A method of operating a gas or dual fuel engine having a plurality of cylinders, includes monitoring a characteristic of each of the plurality of cylinders during operation of the gas or dual fuel engine. The method also includes detecting a pre-ignition condition associated with one or more cylinders of the plurality of cylinders based on the monitored characteristic. The method further includes reducing fuel supply to the one or more cylinders having the pre-ignition condition. The fuel supply to remaining cylinders of the plurality of cylinders is increased, to maintain a constant power output of the gas or dual fuel engine. The method further includes adjusting an amount of air supplied to each of the plurality of cylinders based on the increased amount of fuel supplied to the remaining cylinders, to maintain an air-to-fuel ratio within a desired range.

主权项

1. A method of operating an engine comprising a plurality of cylinders, the method comprising:
monitoring a characteristic of each of the plurality of cylinders during operation of the engine; detecting a pre-ignition condition associated with one or more cylinders of the plurality of cylinders based on the monitored characteristic; supplying a reduced amount of fuel to the one or more cylinders having the pre-ignition condition; supplying an increased amount of the fuel to remaining cylinders of the plurality of cylinders, to maintain a constant power output of the engine; and adjusting an amount of air supplied to each of the plurality of cylinders based on the increased amount of the fuel supplied to the remaining cylinders, to maintain an air-to-fuel ratio in the remaining cylinders within a predetermined range.