EXPLOSION SPRAYING GUN PROVIDING HIGH FREQUENCY IMPULSE OPERATION Russian patent published in 2004 - IPC

FIELD: spraying apparatus for discharge of liquids or other fluent materials.

SUBSTANCE: explosion gun for high-temperature spraying includes combustion channel, shaft for fuel inlet means and oxidizer inlet means, one or several spark plugs to detonate mixture of fuel with oxidizer and one or several jets to introduce product into shaft. Gun also has system for injection of gaseous fuel and oxidizer into combustion chamber to obtain combustible mixtures having different compositions in different combustion chamber zones. Combustion chamber has limited volume and fuel is injected in combustible chamber so that high-energy explosions are formed which provides gun operation in impulse mode. Shaft also includes one or several annular nozzles for deposition of different materials, particularly powder, on substrate.

EFFECT: increased quantity of powder deposited per time unit and, as a result, increased gum productivity.

17 cl, 7 dwg