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AssigneeNiigata Power Systems Co., Ltd.
InventorsSatoru Goto, Yoshifumi Nishi
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The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil tank are connected via a switching valve to a third pipe, connected to an end of the pilot oil main pipe. Before operating stops, the pilot oil is discharged by opening an exhaust valve, and thereafter, the switching valve is switched and pilot oil which the ignition stimulant has been added to is supplied into the pipe. Consequently, the pilot oil downstream from the main pipe is replaced with the pilot oil which the ignition stimulant has been added to. Therefore, at the time of the next activation, pilot oil which the ignition stimulant has been added to is sprayed from the fuel valve, and, as a result, misfire at the time of activation is reduced, and a highly reliable engine is obtained.
A pilot oil ignition type gas engine having a plurality of pilot oil injection valves provided in a plurality of combustion chambers, a plurality of pilot oil pumps provided to each of the pilot oil injection valves, a plurality of first pipes which connect the pilot oil injection valves with the corresponding pilot oil pumps, a main pilot oil pipe, a plurality of second pipes which connect the pilot oil pumps to the main pilot oil pipe, an operating pilot oil tank, and a third pipe which connects an end of the main pilot oil pipe to the operating pilot oil tank;
A pilot oil ignition type gas engine having a plurality of pilot oil injection valves provided in a plurality of combustion chambers, a plurality of pilot oil pumps provided to each of the pilot oil injection valves, a plurality of first pipes which connect the pilot oil injection valves with the corresponding pilot oil pumps, a main pilot oil pipe, a plurality of second pipes which connect the pilot oil pumps to the main pilot oil pipe, an operating pilot oil tank, and a third pipe which connects an end of the main pilot oil pipe to the operating pilot oil tank;
An operating method for a pilot oil ignition type gas engine which is compression-ignited by pilot oil sprayed from a pilot oil fuel valve into a combustion chamber, which is connected to an operating pilot oil tank, wherein
A method of operating an oil ignition type gas engine, comprising:
The method of claim 9, wherein the stimulant-pilot oil mixture supplied to the pilot oil fuel valve during the previous activation of the oil ignition type gas engine includes a second pilot oil and an ignition stimulant.
Dependencies are inferred from the claim text.