| 摘要 |
<p>The injector has a pressure chamber (25) for converting an axial movement of a coupling piston (22) into an axial movement of a valve piston (23) corresponding to a diameter ratio of the pistons. A prestressing spring element prestresses the coupling piston, where an inner prestressing spring (40.1) and an outer prestressing spring (40.2) of the spring element have opposite free ends (43, 44) provided at coupling unit-sided support ends (41, 42). A connecting element (50) engages at the free ends and connects the springs e.g. tubular springs, to transmit force in a prestressing direction.</p> |
