IL43409A - Apparatus for the generation of unipolar air ions - Google Patents

Description

Apparatus the generation of unipolar air ions Constantin Graf von A glow lamp having an output density of at least preferably than may used wit partioular This o very powerful glo with corresponding of the Suoh output densities oan again be aohieved easily espeoially very small glow More espeoially chamber of the lamp should be smaller than smaller than 1 om In a further development of the it should be ensured that the surfaoe temperature of the lamp lies at least preferably above the temperature by reason of a heat output caused by the lamp This heating oan ensure that under all possible working that is even in the treatment of warm and moist moisture ooating of the glass surfaoe of the glow lamp It is therefore impossible for a to ooour through a moist ooating between the wire point at high potential glow lamp oonneotion which at low Moreover the heating in the region of the wire point leads to further supply of energy whioh improves the ionisation For glow lamps with output density in the gas ohamber it can if only the power converted in the glow lamp used as heating In other it is expedient to hea tho glow lamp by its series This series resistor is in any present as a By a for by installation in the of the glow oan its heat output the glow Tho invention will be explained in greater hereinafter by referenoe to preferred embodiments whioh are illustrated in the aoqompanying 1 shows diagrammatioall embodiment of 2 shows a diagramraatio seotional representation of a second embodiment and Figure 3 shows a along the line Figure In the embodiment aooording to Figure 1 a email glow lamp 1 is pushed through the opening 2 of a oover plate 3 and screwed with its base A in a 5 A series resistor 6 is in the A first eleotrode 7 is oonnected with a oonneotor contact Θ through this The eleotrode 9 oonneoted to the base sorew thread She glass wall 11 of the lamp is transparent to encloses a gas chamber 12 and has a hemispherical wall This glow lamp is operated in the way alternating ourrent voltage souroe 14 whioh is earthed A wire 16 having a fine poin 17 is in a 18 in a way that it on the end wall 13 Tho oarrier is held by an inoulator 19 on the oover plate Tho wire 16 is oonneoted through a protective resistor 20 to tho one pole of a souroe whioh is earthed its other The eleotrode 7 is in the shape of a part of a sphere approximately from the pherical end wall This a should be aooording the than 10 preferably than 7 mm if only tho eleotrode 7 oonoidored if it serves as cathode in tension a of tho glass wall 11 results abovo tho line for whioh the oondition ie eleotrode 9 ie a ring with an inclined or domed If therefore a glow on the two as is the in the zone of the glass wall lyin above the line fulfils the stated The wire 16 can be arranged without so that tho point 17 is situated close to this zone of tho glass In a test in whioh an air current from lower over the upper side of tho oover plate the following data was obtainedi of the glow a of the voltage aouroe Voltage of the voltage aourco 21 Average output density in tho gas Surfaoe temperature with ambient 500 Number of ions produoed per In tho embodiment aooording to Figures 2 and the glow 22 has a tubula glass wall is at bot by oonneotor 24 and 25 Tho oonnootor plate 24 oarriee an electrode 26 the oonnootor plate 25 oarriee an eleotrode Those two eleotrodes have of part form and extend parallel with the glass wall A oontaot spring 28 presses the glow agains a fixed oontaot 29 whioh possesses a square aperture 30 for the reoeption of the oonneotor plate Again a oarrier 31 for a wiro with fine point 33 is provided beside the glow lamp 22 The external diameter of the tubular glass wall 23 amounts to 6 The minimum distance of the eleotrodes 26 27 from tho glass wall is therefore loss than 1 the maximum dictanco less than 5 There the wire point 33 be applied to any desired point of the periphery and in the of working nearly ovor the whole length of the without an unaooeptable reduction of the ion yield being oxpeoted in this tolerance In of this embodiment a test assembly has following datat J Length of the glow mm External diameter of the glass 6 Series kilo Voltage of the voltage Working 5 5 Voltage of the insufficientOCRQuality

Claims (1)

1. I PLAIM t Apparatus the generation of unipolar air in which tho radiation of a lamp and an constant field issuing from at least fine wire poin wherein the lamp is a glow lam whioh at least ono the oathode in the of a lamp by direct current over a of glass wall of the a distanoe of less 10 from tho wall and the wire point or pointo are arranged oloee to this zone Apparatus according to wherein tho wall of the lamp is in the form of a thi tube extend parallel with tho glass Apparatus according to Olaim wherein the glass wall of lamp is at one end and the said ono eleotrode is substantially parallpl with the end Apparatus acoording to any one of Claims 1 to a glow lamp has an avorage output denoity of at least Apparatus accordin to wherein the glo lamp has an average output density of than Apparatus according to any one of Claims 1 to wherein the gas chamber of lamp is than in Apparatus aooording to Claim 6 wherein the volume of the ohamber is than 1 insufficientOCRQuality