FUEL-INJECTION DEVICE WITH BUILT-IN FLOW-RATE LIMITER Russian patent published in 2005 - IPC

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed fuel injection device for internal combustion engines has common high-pressure fuel accumulator. Fuel is fed into fuel accumulator by high-pressure pump. Fuel accumulator is connected with nozzles furnished with distributing valve. Distributing valve is made in form of three-way two-position distributor (3/2 distributor) and is provided with control element and distributing surfaces to control connection of high-pressure supply fuel line with high-pressure fuel line with high-pressure fuel line laid to corresponding nozzle or with relief fuel line. Control element is set into action by controlled outlet line and is provided with throttling element communicating with space through hole.

EFFECT: increased shutoff forces acting on control element, improved sealing of high-pressure fuel accumulator and reliability of nozzles in operation.

9 cl, 2 dwg