| 摘要 |
The coaxial nozzle device has a nozzle body (14) arranged in which there are a distributing body (1) and a coaxial nozzle (3). The bottom (11) of the distributing body is sealed against the coaxial nozzle by means of a seal ring (2) and a gasket (8) pressed against the distributing body (1) by a clamping screw (9). The nozzle body (14) has a water supply port (4) and an air supply port (5). The coaxial nozzle (3) contains radial bores (16), and the distributing body (1) contains cross-flow ports (7). The air entering through an air supply port (5) flows through the cross-flow ports (7) into the radial bores (16) and then into the mouth of the coaxial nozzle (3). The water which has entered through the water supply port (4) also flows through a chamber (12) for a nozzle attachment (13) to the mouth of the coaxial nozzle (3). The air path is separated from the water path, and vice versa, by means of the seal ring (2) between the nozzle body (14) and the gasket (8). The advantages of the device consist in the possibility of sterilizing the coaxial nozzle (3) separately and constructing it in miniaturised dimensions. There is no damage upon contact with hard objects. <IMAGE>
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