Electromagnetic pump with oscillating core

Abstract

Electromagnetic pump with oscillating core, connected to a hydraulic device, to transfer a fluid into the hydraulic device. The pump includes a containing body, a tubular element of amagnetic material, a core of ferromagnetic material sliding coaxially to the tubular element, an electromagnetic unit arranged around the core and coaxial to the tubular element to generate an alternating magnetic field and cause the core to slide axially and alternately with respect to the tubular element. The tubular element includes, in one piece, a first part, projecting outside both the containing body and the electromagnetic unit and having an attachment configured to be selectively associated, directly or indirectly, with mating attachment elements of the hydraulic device, and a second part disposed inside both the containing body and the electromagnetic unit and having an axial cavity in which the core slides. The tubular element further includes, in one piece, a flange between the first part and the second part and configured to allow the direct mounting of the tubular element to the containing body and the electromagnetic unit.

Description

FIELD OF THE INVENTION [0001] The present invention refers to an electromagnetic pump with oscillating core, that is, of the type comprising an electromagnetic circuit with a core that is able to slide axially and alternately inside a cylindrical seating in order to thrust, a fluid, for example water, towards the exit with a desired pressure. The pump according to the present invention is able to be associated with hydraulic devices such as boilers, electro-valves or other, and comprises a tubular element provided, on the side through which the fluid exits, with rapid attachment means by means of which the pump is able to be coupled with the relative hydraulic device and, on the other side, with the cylindrical seating wherein the core of the electromagnetic circuit is able to slide. BACKGROUND OF THE INVENTION [0002] Electromagnetic pumps with an oscillating core are known (see, e.g., DE 299 19 575 U1 and DE 15 28 566 B); they generally comprise a tubular element, wherein a cylindr...

AI Technical Summary

Benefits of technology

[0025] The tubular element and the terminal element are provided with flange means, which enclose the electromagnetic unit and define a structure that is very easy to assemble and, possibly, to dis-assemble.

Problems solved by technology

In this way, however, each pump with a determinate external coupling terminal can only be coupled to those hydraulic devices that have a mating coupling profile, while in order to be connected to different hydraulic devices it is necessary to resort to the use of suitable adaptors which have to be placed between the pump and the latter, with a consequent rise in the production and storage costs of the spare parts.

Such sealing and end-of-travel rings are inserted during the assembly phase of the pump, making this operation complex and costly.

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