Nozzle system, powder blasting device and method for using a nozzle system
A nozzle and powder spraying technology, used in explosion generating devices, devices for cleaning tooth cavities, feeding devices for abrasives, etc., can solve the problems of "soft" powder wear, etc., and achieve reduced abrasiveness, increased cleaning surface, and reduced effect of noise
Active Publication Date: 2021-03-23
FERTON HLDG
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Problems solved by technology
Disadvantageously in such cases, even "soft" powders may be too abrasive
However, making the powder even "softer" would negate the primary function of the duster, which is to remove stains and various dental deposits
Method used
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Embodiment Construction
[0041] exist figure 1 In , a nozzle system 1 according to a preferred embodiment of the invention is shown in a sectional side view along the conveying direction T. Such a nozzle system 1 is preferably an integral part of the powder spraying device. Those dusting devices are preferably used to remove stains, tartar or stains from teeth and / or to remove dental biofilm. The nozzle system 1 provides an output stream 2 capable of removing stains and stains and / or capable of removing dental biofilm. In operation, the output stream 2 is ejected by the nozzle system 1 from its front end FE.
[0042] The output flow 2 comprises, in addition to the powder-gas mixture flow 21 , a liquid flow 22 in order to guide the powder-gas mixture flow 21 and to capture the dust generated so as to avoid mist during operation. In particular, the powder-gas mixture flow 21 is at least partially (preferably completely) enveloped or surrounded by the liquid flow 22 in a plane running perpendicularly ...
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Nozzle system (1) for a powder blasting device comprising a first nozzle element (10) for transporting a powder-gas mixture stream (21) along a transporting direction (T) and a second nozzle element (20), wherein the second nozzle element (20) surrounds the first nozzle element (10) such that at least one channel (25) is formed between the first nozzle element (10) and the second nozzle element (20), wherein the channel (25) is provided for transporting a liquid stream (22), wherein the first nozzle element (10) and the second nozzle element (20) are arranged such that in operation the powder-gas-mixture stream (21) ejected by the first nozzle element (10) is encased by the liquid stream (22) ejected by the channel (25) for forming an output stream (2) of the nozzle system (1), wherein thefirst nozzle element (10) has an acceleration part (11) having a first cross section and a spreading part (12) having a second cross section, wherein the spreading part (12) is arranged downstream ofthe acceleration part (11).
Description
technical field [0001] The invention relates to a nozzle system, a powder spraying device and a method for using the nozzle system. Background technique [0002] Nozzle systems in powder spraying devices are generally known from the prior art, for example from patent documents US 3 882 638 A or EP 0 294 548 A1. Such nozzle systems are commonly used for cleaning teeth, in particular for removing stains, tartar and pigments from teeth and for removing dental biofilm. In particular, the purpose of using a dusting device is to clean the tooth surface and remove stains, tartar, dental biofilm and pigment on the tooth surface without damaging the lower tooth surface as enamel or dentin. According to the prior art, powders are suitable for manipulating or regulating the function of the output flow. [0003] Preferably, the nozzle system provides a flow of powder-gas mixture surrounded by a flow of liquid. An output stream formed by a flow of a powder-gas mixture surrounded by a ...
Claims
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IPC IPC(8): A61C17/02A61C3/025
CPCA61C3/025A61C17/02A61C17/0217Y02P70/10B24C7/0084B24C7/0046B24C5/00A61C17/022B24C5/04
Inventor 弗洛伦特·比尼马赛尔·唐纳特马克西姆·福尼尔卡瑞安·索瓦若-马克西特帕特里克·皮查特泰戈·贝尔特洛特
Owner FERTON HLDG