System for injection of gas in a device for detonation spraying

摘要

The system for injecting gas for a detonation projection gun does not incorporate mechanical closing valves or systems for the supply of combustible gas or other inert additive compounds such as nitrogen, argol, helium or the like. On the contrary, the supply of gas or compounds occurs directly and separately to the detonation chamber (1) through a series of independent passages, one for the comburant and at least another passage for the combustibles, each passage being comprised of an expansion chamber (8) and of a plurality of distribution conduits (9) having a reduced cross-section and/or extended length. The expansion chamber (8) of each passage communicates directly with the corresponding supply line (4) whereas the distribution conduits (9) are conveniently distributed so that multiple gas injection points open out at the internal surface of the combustion chamber (1) in order to produce a continuous and separate supply of gas at multiple points thereby ensuring a direct and homogenous combustible mixing in the combustion chamber (1) and with a flow which is sufficient to fill the chamber (1) in each detonation cycle. IMAGE