Gun nailer, has orifice and check valve in communication with chamber comprising ventilator and propulsion chamber to allow passage of flame, and intermediary chamber to connect two chambers

摘要

The gun nailer has a chamber (11) with an acceleration ventilator to pre-compress combustible gas and to generate flame. An orifice and a check valve are in communication with the chamber (11) and a propulsion chamber (15) to allow passage of the flame. An intermediary tubular chamber (14) for compressing and accelerating the flame connects the two chambers (11, 15).