DIESEL ENGINE FUEL FEED DEVICE Russian patent published in 2004 - IPC

FIELD: mechanical engineering; diesel engines.

SUBSTANCE: proposed device contains high-pressure source, cock, hydraulic accumulator with pressure transmitter and electromagnetic valve, fuel, lines, injectors, electronic control unit and variable-speed governor. Device is furnished additionally with distributor whose spool is connected with engine timing gear through splined bushing, and through cam, with control rod of variable-speed governor. Control rod is connected with spool position pickup. Two ring grooves are made on spool with trapezoidal slot with stepped base and screw slot separated by land between ring grooves. Left-hand ring groove is connected with trapezoidal slot, and right-hand ring groove is connected with screw slot. Radial channels made in distributor housing connect left-hand ring groove with hydraulic accumulator, right-hand ring groove with fuel tank, and trapezoidal slot, with injectors. Invention improves efficiency of utilization of energy produced at combustion of fuel, reliability of fuel feed accumulating systems in diesel engine, simplifies design and reduces number of lines under constant high pressure.

EFFECT: improved operation reliability.

8 dwg