Constant pressure nozzle and method for mixing with same

摘要

The nozzle has a mechanical control unit with a flexible control element e.g. compression spring, which produces an adjustable axial strength on a nozzle needle (5). The flexible control element includes a motor bellow (31) connected with a gas compartment lying below an adjustable drive, so that the strength acting on the nozzle needle from the flexible control element is pneumatically adjusted. A chamber in which the flexible control element moves, is hydraulically sealed opposite to another chamber that is hydraulically connected with a dosing unit. An independent claim is also included for a method for mixing two reactive components.