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A reciprocating electromagnetic micro-pump, particularly forsmall electrical appliances

A reciprocating technology for electrical appliances, applied in the field of hydraulic pumps, can solve the problems of impacting production and assembly costs, and increasing the final cost of electrical appliances

Inactive Publication Date: 2007-09-05
CEME
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The presence of such a safety system adds production and assembly costs with a significant impact to the final cost of the appliance to which the micropump is applied

Method used

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  • A reciprocating electromagnetic micro-pump, particularly forsmall electrical appliances
  • A reciprocating electromagnetic micro-pump, particularly forsmall electrical appliances
  • A reciprocating electromagnetic micro-pump, particularly forsmall electrical appliances

Examples

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Embodiment Construction

[0013] With reference to the accompanying drawings, the miniature reciprocating electromagnetic pump according to the present invention mainly comprises a container 1 made of electrical insulating material, and the container 1 includes a ring-shaped electrical winding 2 coaxially surrounding the hollow body 3, and in the cavity 4 of the hollow body 3 It is a core 5 made of ferromagnetic material with radial clearance that can move alternately. The hollow body 3 has at one end a tubular inlet connection 6 connected to the tank, while between the inlet connection 6 and the core 5 is placed a helical pressure spring 7 which tends to press the core 5 towards a tubular outlet connection carried by the hollow member 9 8. The hollow part 9 is fastened coaxially and sealingly to the hollow body 3 on the side opposite the inlet connection 6.

[0014] The core 5 is again hollow and carries a hollow piston 10 coaxially, the piston 10 being provided with an inlet valve 11 in a conventiona...

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PUM

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Abstract

Reciprocating electromagnetic micro-pump, particularly for small electrical appliances, whose pumping chamber is defined by a tubular element (12), movable axially, against the action of a contrasting spring (14), between an advanced position of normal operation of the pump and a retracted position in which the outlet fitting (8) of the pump is placed in communication with the cavity (4) of the hollow body (3) within which is movable in reciprocating fashion the core (5) bearing the piston (10) and which in turn communicates with the inlet fitting (6) of the pump, in such a way as to absorb and anomalous overpressures generated, in operation, downstream of the pump.

Description

technical field [0001] This invention relates generally to hydraulic pumps, and more particularly to a miniature reciprocating solenoid pump particularly, but not exclusively, for use in small electrical appliances. Background technique [0002] Such micropumps generally consist of a hollow body with a water inlet connection and in its cavity an alternately movable core made of ferromagnetic material cooperating with an electrically excited winding surrounding the hollow body. The core carries a tubular piston with an associated inlet valve which is sealingly slidable within a pump chamber communicating with an outlet connection via a one-way delivery valve. [0003] When applied to small electrical appliances, micropumps of the above-mentioned type convey water from the tank to the distribution parts of the equipment, in particular, in the case of steam appliances, to a boiler or an instant steam generator. Current standards for this purpose impose on the delivery lines of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B17/04F04B19/00
CPCF04B17/046F04B19/006
Inventor B·布齐
Owner CEME