DOUBLE-CIRCUIT FEED SYSTEM OF INTERNAL COMBUSTION ENGINE WITH GASEOUS FUEL Russian patent published in 2020 - IPC F02B43/00 F02D19/02 F02M21/02 F02M21/04 

FIELD: engine building.

SUBSTANCE: invention can be used in fuel supply systems of internal combustion engines (ICE). Disclosed is ICE two-circuit power supply system with gaseous fuel in the form of compressed combustible gas (CCG) containing correspondingly communicated inlet manifold (K) with inlet branch pipe (1) and air throttle (2), fuel tank CCG (3) with gas supply main (4), pressure reducer-pressure regulator CCG (5), three-way gas fuel supply switch (6), made with possibility of supplying CCG or in first circuit (7) of centralized supply of CCG, or second circuit (8) of distributed phased feed to inlet into separate cylinders ICE, or both circuits simultaneously. First circuit (7) is made with possibility of centralized controlled supply of CCG to intake manifold (K) through unit (9) of gas injector (10) and gas mixer (11), and the second circuit is made with the possibility of distributed phased supply of CCG to the inlet to each separate ICE cylinder through gas nozzles (16). Gas mixer (11) is made in the form of at least two rows of swirlers arranged mutually equidistant and made with possibility of multidirectional swirling of flows in each row.

EFFECT: invention is aimed at improvement of efficiency of ICE double-circuit power supply system, converted from diesel, by gaseous fuel due to good homogenisation and provision of good flammability in all modes.

8 cl, 5 dwg