Recommended application field: Such a valve will find use in all systems in the world, which containtubes: steam heating, water pipelines, gas pipelines, oil pipelines, oil pipelines, power, chemical reactors, power motors, vacuum system, etc. The Piezoelectric Valve will enable development of a new generation of power systems (engines of internal combustion, turbojets, steam and gas generators, and nuclear reactors), various hydraulic systems with small response times and with high control accuracy. Thus, "thermo-gas-hydraulic" systems working in real time, with speed approaching that of electronic systems, can be developed. In addition to the broader industrial uses described above, the piezoelectric valve offers sognificant commercial potential at an individual household level. The valve would enable precise regilation of household water supply and household heat supply with a noiseless, small-sized, energy-efficient, and simple to control element. In particular, the Piezoelectric Valve could offer a significant safety improvement on existing systems for regulating household gas supply, by reducing the risk of spark and exlosion.

Technical characteristic: Technical data for piezoelectric ball valve for a 1/2" (half-inch) pipe: - Working time (duration "closed-open" mode) <1" - Angular uesolution (min. angular increment) 1arc-sec - Response time 50us - Weight (with the 1/2" valve) 250g - Voltage 12V - Power 4-6W

Advantages over analogues: Generally, a control valve comprises three primary components: a valve, (such as a ball valve), a DC motor and a control circuit (see control valves manufactured by companies such as Siemens, Johnson Controls, Sauter, Danfoss, Belimo, Joventa). Such control valves are characterized by low speed (duration of "closed-open" mode ranges from 30 to 140 seconds), low resolution (1-5 angular degrees), a response time of 1-2 seconds, high weight (1-2 kilograms) and high cost ($400 - for a vaive with resolution 1-5 ang. degrees; $1000 for a valve with 0,2-1 ang. degree resolution). The suggested valve will be an inexpensive noiseless piezoelectric valve with high speed (duration "closed-open" mode less than 1 second), high resolution (less than 1/3,600 angular degree or 1 arc-sec), rapid response time (1/20,000 second or 50us), and low weght (250-300 g) - all in one product.

The development stage readiness: Tested experimental exploitation order

Description of the development:
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A motorized control valve is developed to regulate any kinds of liguids, steam, gas or vacuum streams. It can be used in tntrgy in energy industry, chemical industry, food industry, food industry etc. At the basis of the piezoelectric control valve is a special piezoelectric mechanism which, on one hand, allows very fast action (analogus to the cut-off valve), and on the other hand, it allows very precise control (analogous to the controller valve). At the present time these two valves work separately complementing each other. Our single valve can replace either one of them, or both. The suggested piezoelectric valve is intended for using simultaneously as a fast valve with working time less than one stcond, as a precise valve with high angular resolution (minimum angular increment - 1 arc-sec, response time 50us). In case a piezoelectric valve is jammed, the piezoelectric mechanism, unlike an orbinary electric motor, will not burn itself out. The piezoelectric valve, unlike an orbinary motor, also generates no sparks.

corresponds technical description
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Possibility of transfer abroad:
Licence's sale

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua