Method and application device for applying a filling material into a cavity

A method for applying a fluid filling material into a cavity of a component, the method comprising:

• conveying the filling material by at least one metering device with a predetermined flow rate to an applicator;
• injecting the filling material into the cavity of the component by the applicator, whereby an injection pressure is established;
• measuring the injection pressure by a pressure sensor;
• determining a first pressure increase of the injection pressure, the first pressure increase being based on the fact that an injection front of the filling material in the cavity meets walls and experiences a corresponding counterpressure by the walls of the cavity;
• and
• reducing the flow rate of the metering device at a first switchover point at the first pressure increase of the injection pressure.

An application device for applying a fluid filling material into a cavity of a component, comprising:

• an applicator for injecting the filling material into the cavity, whereby an injection pressure is established;
• at least one metering device for conveying the filling material to the applicator at a specific flow rate;
• a first pressure sensor for measuring the injection pressure of the filling material;
• and
• a control unit which interrogates the first pressure sensor and controls the metering device, wherein the first pressure sensor is mechanically connected to the applicator and is movable together with the applicator.