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A DIRECT INJECTION GASEOUS FUEL FEEDING SYSTEM FOR A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE, A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE AND METHOD OF OPERATING A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE
A DIRECT INJECTION GASEOUS FUEL FEEDING SYSTEM FOR A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE, A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE AND METHOD OF OPERATING A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE
Invention relates to a direct injection gaseous fuel feeding system (10) for an internal combustion piston engine (1), the fuel feeding system (10) comprising a liquefied gas storage tank (14) configured to store liquefied gas in cryogenic conditions, a fuel feed line (16) extending from the tank to a fuel injector in the engine (1), which fuel feed line (16) comprises at least the following: a liquefied gas high pressure pump unit (18), a heat exchanger unit (22) for evaporating the liquefied gas and heating the gaseous gas, and a gaseous gas accumulator (24) between the heat exchanger unit (22) and the fuel injector, and at least two gaseous gas fuel injectors in fluid communication with the gaseous gas accumulator (24). The liquefied gas high pressure pump unit (18) comprises a reciprocating piston having a pumping part (32) and a drive part (34), and a hydraulic drive assembly (36) arranged to controllably subject hydraulic power fluid from a source of hydraulic power fluid (102) to the drive part (34) of the reciprocating piston for driving the piston in reciprocating manner.
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