TWO-FUEL NATURAL GASOLINE INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

FIELD: two-fuel gasturbocharged engines. SUBSTANCE: air distributing device 19 mounted between air filter 18 and gas adapter-mixer 6 of carburetor 15 is made in form of hollow spacer where automatic check valve 20 with seat 21 is mounted coaxially; valve 20 divides interior of spacer into two communicating cavities 22 and 23. Distributing device 19 is provided with air branch pipes 24 and 25. Besides that, plate of automatic check valve 20 is additionally provided with fairing 26 made in form of cone with its vertex downward. Engine is equipped with turbocompressor 27 including gas turbine 28 driven by waste gases and compressor 29 for supply of compressed air to engine 30. Air delivery pipe line 34 is communicated with above-diaphragm cavity of first stage on one side and with above-diaphragm cavity of second stage of gas reducer 5 on other side. EFFECT: enhanced efficiency. 2 dwg