INTERNAL COMBUSTION ENGINE "NORMAS" N 34 Russian patent published in 2020 - IPC F02B41/06 F02B73/00 F01B21/02 

FIELD: engine building.

SUBSTANCE: invention relates to two-stroke internal combustion engines (ICE) with extended expansion. Essence of invention consists in the fact that assembly structure of engine with units is mounted taking into account combined coordinate grid, on which is predetermined location of centers of circles of one diameter, arranged so that it is possible between rows of these circles to conduct only three types of intersection of tangential lines, which each circle from given number is inscribed into regular hexagon, and which has a single reference point 00 located on the axis of hollow shaft 12 of power takeoff, from which radially at angle of 120° equally spaced three points 01, 03, 05 of axial centers of working volumes of cylinders with a crosshead crank-and-rod mechanism (CRM). On three other radial beams, which are bisectors of said angles, three points 02, 04, 06 of cylinders with trunk CRM are located. From these six points 01–06 on radius towards uniform point 00 of reference at equidistant distance axial centers of shafts 07 and 08 of six modules are located. Diameters of circles are equal to diameters of pistons 33, 34, cylinders 13, 16, diameters of side jaws 15, between pairs of which cranks 30 are arranged, as well as diameters of circle of teeth recesses of gears of engagement 31. In composition of composite pistons 34 there is ball 3-way valve 23 with the possibility of limited rotation when piston moves by means of connection with connecting rod 25, which has the shape of the double-tee profile curved plate and when placed is central place on crank neck 30. There are also even number of bent plates 27 with eye lugs on both ends, wherein lengths between centers of lugs and centers of joints 41 of all plates, including assembled crosshead CRM, are equal. System of air inlet elements is made with built-in 3-way valves and with possibility of their synchronous rotation due to coaxial connection with shaft 10.

EFFECT: technical result consists in higher engine efficiency.

1 cl, 11 dwg