SU950199A3 - Low-pressure nozzle - Google Patents

Description

FIELD: engine building.

A known low-pressure nozzle for an internal combustion engine, comprising a housing housing an electromagnetic device made in the form of a magnetized core with electric windings, a spring-loaded disk-shaped valve body interacting with an electromagnetic device, and an a-support valve seat with a nozzle 1.

A disadvantage of the known nozzle is the complexity of the design.

The purpose of the invention is to simplify the design.

This goal is achieved by the fact that the electrical windings are located in the grooves of the end of the core parallel to the plane of the disk.

The grooves of the end face of the core are annular.

The grooves of the core face have a spiral shape.

The grooves of the core face are made in the form of straight sections connected by arcs.

The surface of the end face of the core is provided with a coating of non-magnetic material.

FIG. 1 shows a structural diagram of the nozzle; in fig. 2 nozzle core with annular grooves, end view; in fig. 3 the same, with spiral grooves; in fig. 4 - nozzle core, view

to the side; in fig. 5 - core with grooves in the form of straight sections connected by arcs, end view; in fig. 6 shows the working structure of the nozzle.

15

The nozzle includes a housing 1 in which is placed an electromagnetic device, made in the form of a magnetized core 2 with electric windings 3, spring-loaded

20 a locking member in the form of a disc 4, a direct action with an electromagnetic device, and a saddle 5 of a locking member with a nozzle opening b. The electric windings 3 are located in the cores 7 of the end face 8 of the core 2 parallel to the plane of the disk 4. The grooves 7 of the end face 8 of the core 2 have an annular shape E, a spiral shape 10 or are in the form of straight sections 11 ,.

connected meadows 12. The surface of the end face 8 of the core 2 is provided with a coating of non-magnetic material. The housing 1 is provided with a passage 13 for supplying fuel.

The operation of the nozzle is carried out as follows.

When current is applied to the electric windings 3, the disk 4 moves towards the core 2, the nozzle 6 is connected with the fuel supply channel 13. There is a fuel injection. When the electrically windings 3 are turned off by the action of the spring, the disk 4 returns to its original position, at which the fuel supply stops.

Thus, the placement of electrical windings in the end of the nozzle core provides a simple constructive implementation.

Claims (5)

1. A low pressure nozzle for an internal combustion engine, comprising a housing housing an electromagnetic device made in the form of a magnetized core with electric windings, a spring-loaded shut-off element in the form of a disk, an interaction with an electromagnetic device, and a stop valve seat with a nozzle orifice characterized by that, in order to control the structure, the electric windings are located in the grooves of the end of the core parallel to the plane of the disk. 2. The injector according to claim 1, characterized in that the grooves of the end of the core have an annular shape. 3. A nozzle according to claim 1, in accordance with the fact that the grooves of the core end have a spiral shape. 4. The injector according to claim 1, from the first and the second. with that groove butt the core is made in the form of straight sections connected by arcs. 5. The injector according to claim 1, in which the surface of the core is provided with a coating of non-magnetic material. Sources of information taken into account in the examination 1. French Patent No. 2276472, cl. F 02 M (published 1976. gfe / INSSNN: / .f 7 g f 6 FIG. five fug.