Therefore, compressed gas is injected into the injection nozzle so as to remove the pollutants from the interior of the injection nozzle, thereby preventing the pollution of the injection nozzle.

In addition, the nozzle opening and closing section, which can open and close the injection portion of the injection nozzle, is disposed so as to prevent the pollutants from being introduced to the inside of the injection nozzle.

The control unit controls the fuel injection nozzle such that the fuel injection nozzle injects fuel in accordance with the injection cycle (C1).

An effective length (h) from the injection nozzle (49) to the end of the windings of the injection screw (24) distant from the injection nozzle is defined on the injection unit (40).

Both of the fuel and oxygen nozzle (5) and the raw material nozzle (6) have a structure with one or more nozzles.

A package assembly (10) holds at least one applicator nozzle tip (16) and, optionally, a fluid-containing vial (18) adapted for attachment to the nozzle tip (16).

The injection nozzle (11) of the injection unit (1) is located at the junction of the plurality of first injection runners (3).

An injection tip (12NA) opens at a tip portion (12NS) of the injection nozzle (12N).

The invention also relates to the injector (2) and the system (1) for producing powders incorporating the injection nozzle (3), and to the method of manufacturing the injection nozzle (3).

The bottom of the catheter (1) is interconnected with the main water inlet/outlet (3), the secondary water inlet/outlet (4), and the water injection nozzle (5), and the water injection valve (6) is installed in the water injection nozzle (5).

Said cavity (8) is configured to supply fluid to the injection nozzle (12).

In order to reduce temperature losses, at least one thermally insulating insulation device (32) surrounds the injection molding nozzle (10) and rests against the injection molding tool and at least partially surrounds the nozzle tip (26).

No tipping is produced between the injection nozzle (44) and the feed bush (43) of the injection-moulding tool.

The purpose of the present invention is to provide a urea solution injection nozzle in which deposition and growth of urea on the surface of the urea solution injection nozzle are minimized.

The with the injection nozzle provided injection tube is pivoting mounted and the adjusting means provide a forced pivoting of the injection tube.