METHOD OF FUEL FEED CONTROL AND DEVICE TO THIS END Russian patent published in 2014 - IPC F02M61/18 F02M47/02 

FIELD: machine building.

SUBSTANCE: proposed device comprises atomiser with spring loaded shutoff element, sprinkler with one level of orifices, high-pressure fuel feed channel, high-pressure fuel pump, fuel tank and priming pump, high-pressure hydraulic accumulator, all being hydraulically communicated. Also, it has low-pressure accumulator, mechanical control valve with rod with conical or some other shutoff surface for every atomiser and fast-operation reversing drive for every nozzle. Needle chamber of every atomiser is connected with low-pressure accumulator. Outlet of the latter is connected with high-pressure fuel inlet. Outlet of high-pressure accumulator is connected with low-pressure hydraulic accumulator. First mechanical control valve for every atomiser is arranged in atomiser channel between high-pressure hydraulic accumulator inlet and atomiser needle chamber. Second mechanical control valve is arranged between atomiser needle chamber and low-pressure hydraulic accumulator. First and second mechanical control valves are engaged by levers with rod and, thereby, with fast-response reversible mechanical drive. The latter is equipped with, at least one plate for one cylinder with convex surface at one end of said plate, definite length of said convex part having an invariable radius. Said shaft is articulated with at least one crankshaft with at least one shaped can with at least one microprofile. Said micro shapes have leading edge parallel with needle axis and trailing edge parallel with plate end convex surface skew in adjustment of injection interval. Convex surface of every plate has one or several skews over its width. Every plate can displace along rod axis. The latter is connected directly or indirectly via multiplexer with the rod whereto connected are said first and second mechanical valves. Every plate can displace in the plane perpendicular or inclined to needle and stem axes and is splined to stem relative to which displaces the plate.

EFFECT: higher indicated efficiency, injection duration controlled by simple mechanical appliances.

2 cl, 4 dwg