GAS-DYNAMIC LASER AND ITS INITIATION PROCESS Russian patent published in 2006 - IPC H01S3/22 

FIELD: quantum electronics; high-power laser units burning combustion products.

SUBSTANCE: proposed laser has regenerative heat exchangers and sources of working-medium components communicating with gas producer by means of pipelines incorporating regulating pipe connections. Gas producer has combustion chamber and spray-nozzle unit, ignition devices, and gas-dynamic channel for pumping working medium. In addition, at least one auxiliary gas producer is disposed between ignition device and combustion chamber. Auxiliary gas producer outlet is arranged tangentially to combustion chamber. Spray-nozzle unit is made in the form of tube coaxial to combustion chamber with pipelines of all working-medium components and regulating pipe connections butt-jointed to this tube. Auxiliary gas producer communicates with sources of all working-medium components through individual pipeline provided with regulating pipe connections. Laser initiation process involves feeding working-medium components to gas producer including preheat of ballast component and oxidizer in regenerative heat exchangers, mixing fuel components, igniting combustible mixture, and adding ballast component to mixture. Main part of all working-medium components is mixed up prior to being fed to gas producer. Remaining part of components is pre-burned and then combustion products are added to mixed-up working-medium components. Ballast component and oxidizer are heated to temperatures affording rise of mixture ignition point above temperature of all working-medium components upon their mixing up. Flowrate of pre-burned working-medium components is set considering temperature rise upon mixing combustion products with main part of working-medium flow. Mixed-up working-medium components can be supplied to gas producer in same proportions as pre-burned components.

EFFECT: simplified design and enhanced operating reliability.

3 cl, 2 dwg