ELECTRICALLY CONTROLLED VALVE FOR BATCHING FUEL IN INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC F16K31/02 F16K31/72 F02M51/00 

FIELD: engine engineering.

SUBSTANCE: electrically controlled valve comprises housing filled with a dielectric fluid. The inner face of the lid covering the housing is provided with flexible pressure-tight sleeve that receives the multi-layer drive made of a piezoelectric material and mounted in the sleeve without spaced relation to the faces. The drive is actuated by the electric pulse and deforms flexible pressure-tight sleeve, thus moving the valve in the axial direction. The valve is normally open. The bottom face of the valve is provided with a flexible sleeve that abuts against the cylindrical gate spring-loaded from below. The gate is provided with bottom head made of a truncated cone and defines a pressure-tight space together with the space of the valve housing filled with a dielectric fluid. The movements of the gate upward and downward are arrested by the flexible sleeve and the conical seat, respectively. The vessel below the conical seat, which receives the compression spring for lifting the gate, is connected with the drain. The top section of the cylindrical gate is set in the guide coupled with the housing of the valve. The groove made above the conical seat of the gate and below the top section of the cylindrical gate is connected with the high-pressure pump through one passage and with the nozzle through the other passage.

EFFECT: enhanced precision of batching.

1 dwg