Cold gas spraying gun with powder injector
AssigneeImpact Innovations GmbH
InventorsPeter Richter, Jr., Leonhard Holzgassner, Andreas Gropp, Peter Richter, Sr.
Life of this patent
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Abstract
The present invention discloses a cold gas spraying gun with a powder injector for injecting a gas/powder mixture into a mixing chamber through which a process gas flows. One powder injector pipe of the powder injector is closed at one face end. A delivery opening for delivering the gas/powder mixture from the powder injector is designed as an opening in a side wall of the powder injector pipe. The delivery opening opens into the hollow chamber in the powder injector pipe at an axial distance from the closed face end of the powder injector pipe, and therefore a backed-up volume is located between the delivery opening and the closed end face of the powder injector pipe.
Claims4
Cold-gas spray gun comprising a mixing chamber, through which a process gas flows, and a powder injector for injecting a gas-powder mixture into the mixing chamber, the powder injector having a powder injector tube comprising a feed opening for feeding the gas-powder mixture into the powder injector and a discharge opening for discharging the gas-powder mixture from the powder injector, wherein:
- the powder injector tube is closed at one end-face end,
- the discharge opening is perpendicular to a longitudinal axis of the powder injector tube and is formed as an opening in a side wall of the powder injector tube;
- and
- the discharge opening opens into the cavity of the powder injector tube at an axial distance from the closed end-face end of the powder injector tube such that the side walls of the powder injector tube extend past the discharge opening and the axial distance from the closed end-face generate a volume between the discharge opening and the closed end-face end of the powder injector tube.
Dependencies are inferred from the claim text.