Dosing device for introduction of reducing agent into exhaust pipe of internal combustion engine, has dosing module comprising ice pressure compensation device with volume increasing devices, which are connected in resilient manner

摘要

The dosing device has a dosing mechanism comprising a dosing module (5) cooperating with a housing (11). The dosing module is connected with a pressure line (1), and a conveying device (2) is connected with a tank (3) over a hydraulic connector (4). A pulse feedback unit device feeds back a reducing agent from a dosing valve of the dosing module into the pressure line. The dosing module comprises an ice pressure compensation device with volume increasing devices, which are connected in a resilient manner. The housing holds components of the dosing module.