Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1998-06-03
2000-12-26
Philogene, Haissa
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
361253, 361260, 310311, H05B 3702
Patent
active
061664936
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention concerns an electric multispark ignition system, insensitive to moisture and wet.
At present, the production of systems for the electric spark ignition consists of piezoelectric igniters and in the so-called electronic igniters.
The latter, of recent introduction, are widespread in spite of their higher cost, as they seem to be less sensitive to moisture than the piezoelectric igniters, which show many disadvantages, mainly consisting of: moisture makes a deposit of a thin layer on their surfaces, it determines--due to the high potential differences between the positive and the negative area, a way to short-circuit with a too weak or nul production of sparks at the electrodes; whole current production, which cause--in presence of moisture, condensation or wet--a partial or total short-circuit, with the emission of non uniform or too weak sparks, up to the non emission.
While in the electronic gas-lighters the insufficient efficiency of the crystal block lever has been solved by replacing the same with an electromagnetic spark generator fed by an electric energy source (battery, etc.), the problem of the point electrodes--in the electronic gas-lighters--has remained unvaried, and thus said electrodes are still sensitive to condensations of a determined extent or to wet.
It is the aim of the present invention to realize a new system which, without changing considerably the current technology and the techniques for the realization of piezoelectric lighters, may show a global efficiency superior to the one of an electronic lighter, maintaining the production costs of a common piezoelectric lighter, and therefore much lower.
SUMMARY OF THE INVENTION
The aim set forth is reached by means of the new system according to the present invention, which consists in a protection system of the piezoelectric crystals block, which makes the same insensitive to moisture, and with a cap completely different from those of current production, that may be used in any kind of piezoelectric, electronic, electric igniter for cooking places, ignition systems for industrial use like boilers etc.
The main and conclusive advantage of the system according to the present invention is that the flashing of a spark may be obtained in any moisture or even wet condition.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
the system according to the present invention will be described more in detail hereinbelow relating to the enclosed drawings in which some embodiments are shown.
FIG. 1 shows a lateral scheme of an electric multispark ignition system, insensitive to moisture and wet, according to the present invention.
FIGS. 2 and 3 show a detail of the two elements cooperating for the purpose.
FIG. 4 shows an axonometric scheme of a variant of an end structure of an igniter provided with the system according to the present invention.
DETAILED DESCRIPTION OF INVENTION
The enclosed figures show an electric multispark ignition system, insensitive to moisture and wet, mainly consisting of: consisting of cylindric prolongations of the thrust blocks so that each block pushes a prolongation that coats the plastic container 3, nearly reaching, but never touching, the opposite metal prolongation of the other block, so that the space 4 thereinbetween allows the sliding of the two metal parts, while the holding is secured by an elastic band 5 that surrounds the metal near the empty space and the positive wire 6 comes out of a sealing hole 7; well as short-circuit phenomena, consisting of two electrodes 8, 9 of suitable length and that limit the electric charges within a determined area of said electrodes, preventing any leakage beyond the one of the opposite lateral electrode, being completely insulated for all its length 10 against the existing tensions, leaving uncovered only a limited, more expanded area 11, placed at the furthermost so that the electrons, that charge the point of the electrode, should run along the distance of the wet layer that covers the two electrodes, for getting
REFERENCES:
patent: 3558903 (1971-01-01), Yamano
patent: 3639788 (1972-02-01), Horan
patent: 3793561 (1974-02-01), Lundh
patent: 4595352 (1986-06-01), Endelson
patent: 4691136 (1987-09-01), Schmidt
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