| 摘要 |
<p>The closure needle enters with its end remote from the injection nozzle into a bore in the piston, provided on both sides with piston-rod attachments, of a drive cylinder to which pressure medium can be applied on both sides. The end of the closure needle is fastened in the piston bore, where a stop acting in the closing direction is provided for it. A screw from the outer end of the outer piston-rod attachment can be screwed into a threaded bore in the end of the closure needle, bearing against a stop in the outer piston-rod attachment which is effective in the opening direction. <IMAGE></p> |
