| 摘要 |
FIELD: mechanical engineering; diesel engines. ^ SUBSTANCE: invention related to electrically controlled accumulator-type fuel systems. Proposed system to supply fuel into cylinders of diesel engine has high-pressure accumulator with delivery pipeline, standard electromagnetic valve installed before standard nozzle in delivery pipeline by inlet and outlet unions. Coil of standard electromagnetic valve is connected through switching unit with electronic control unit which is connected with crankshaft speed sensor and with sensor of fuel delivery commencement controlled by centrifugal governor. System is furnished additionally with low-pressure accumulator, and in its delivery pipeline bypass electromagnetic valve is installed whose outlet union is coupled with outlet union of standard electromagnetic valve by bypass bridge pipe. Outlet union of standard electromagnetic valve is also coupled through check valve with delivery pipeline of low-pressure accumulator. Electronic control unit is additionally connected with unit comparing signals from crankshaft speed sensor and from diesel engine mode setting unit. Electronic control unit is connected by negative feedback with fuel cyclic delivery time unit. ^ EFFECT: improved efficiency of system at any operating condition of engine. ^ 2 cl, 3 dwg |
