Method of Conversion of High- And Middle-Speed Diesel Engines Into Gas Diesel Engines

Abstract

Abstract. The paper aims at the development of fuel supply and electronic control systems for boosted high-and middle-speed transport engines. A detailed analysis of different ways of converting diesel engine to operate on natural gas was carried out. The gas diesel process with minimized ignition portion of diesel fuel injected by the CommonRail (CR) system was selected. Electronic engine control and modular gas feed systems which can be used both on high-and middle-speed gas diesel engines were developed. Also diesel CR fuel supply systems were developed in cooperation with the industrial partner, namely, those that can be mounted on middle-speed diesel and gas diesel engines. Electronic control and gas feed systems were perfected using modeling and engine tests. The high-speed diesel engine was converted into a gas diesel one. After perfection of the gas feed and electronic control systems, bench tests of the high-speed gas diesel engine were carried out showing a high share of diesel fuel substitution with gas, high fuel efficiency and significant decrease of NO х and СО 2 emissions.

Results of simulation and experimental research of automobile gas diesel engine

“…As the research was executed within the framework of the State program of development of systems for highand medium-speed engines fed with natural gas, a modular gas feed system and electronic engine control system which may be mounted on both the high-and medium-speed gas diesel engines were developed [9,10]. The gas fuel system has several identical modules linked with each other.…”

Experience of Diesel Engines Conversion for Operation on Natural Gas Obtained in Madi

“…Cummins KAMA diesel engine was converted to operate on natural gas by the gas-diesel cycle [9]. The gas-feed and electronic engine control systems were developed within the framework of the State program of creation of high-and medium-speed engines fed with natural gas.…”

The Influence of Mass Composition of Water-Fuel Emulsion on Ecological Characteristics of a Diesel Engine

“…The influence of mixed fuels on the structure-borne noise of the engine is also a point of interest. Combustion process severity and, as a consequence, the emitted noise, depend on the fuel used and the process organization method [6][7][8][9][10].…”