ELECTROMAGNETIC VALVE FOR HYDRAULICALLY OPERATED FUEL INJECTOR Russian patent published in 2015 - IPC F02M51/06 F02M61/16 F16K31/02 

FIELD: engines and pumps.

SUBSTANCE: electromagnetic valve for a hydraulically operated fuel injector intended for use in fuel injecting equipment of internal combustion engines is offered. The electromagnetic valve contains an electromagnet, thruster (5), spring-loaded towards disconnection of magnetic circuit and connected with a latching element (10), electromagnet armature (4), installed on the thruster (5) with a possibility of axial movement with reference to the thruster (5) towards disconnection of the magnetic circuit and with the stop towards the closure, and the movement of the armature (4) towards disconnection of the magnetic circuit is limited by the elastic element. According to the invention the elastic element is designed as an elastic disk (13), integrated with the thruster (5) and rigidly connected by its circumferential part with the armature (4) with forming of the damping cavity (14) between the back of the elastic disk (13) and the armature (4), and the stop is the elastically deformable ring (6), fixed at periphery in the armature (4) from another side from the damping cavity with reference to the elastic disk (13).

EFFECT: simplification and improvement of design reliability with decreased axial overall dimensions and possibility to control the high fuel pressure without increase of electromagnet power.

5 cl, 6 dwg