| 摘要 |
<p>The system has a tank (17) and a suction side of a dosing pump (15) i.e. membrane pump, connected with each other by a line (21). A pressure side of the pump and a dosing valve (13) are connected with each other by a line (19). A throttle (51) is arranged between the dosing pump and the valve. The pump is actuated by an armature (35) of electromagnets (33). The valve is actuated by pressure. A non-return valve (39) e.g. blow valve, is arranged parallel to the throttle. A return spring (45) is coupled with the armature of the electromagnets.</p> |
