FIELD: engines and pumps.
SUBSTANCE: system comprises gas timing valve fluid control gear, fluid flow control slide, hydraulic accumulator, timing valve drive piston and timing valve. This gas timing valve fluid control gear defines fuel amount, exhaust gas amount and engine timing valve closure moment in compliance with preset current ICE output. At ICE offgas exhaust stroke at time moment defined by gas timing valve fluid control gear, said slide forces working fluid from hydraulic accumulator to under-piston of timing valve drive. Therefore, working fluid pressure makes timing valve gear drive piston force timing valve engaged therewith to closed position. This causes the portion of exhaust gases to stay in ICE cylinder. Note that at the next air of fuel mix suction stroke, exhaust gases are mixed therein with sucked air or fuel mix.
EFFECT: higher efficiency.
2 dwg
