| 摘要 |
<p>A fluid power valve, such as a pressure regulating valve, has a manual input knob Ä21Ü that can be turned to change the operating point. This has a threaded spindle Ä19Ü with a loading disc Ä18Ü that moves to load or unload a coil spring Ä17Ü that displaces a valve orifice control element Ä11Ü. A threaded rod Ä24Ü passes down the centre of the spindle tube rod and has a cross pin Ä22Ü that acts as a stop for the loading disc. This rod may be screwed in and out to limit the preload on the spring.</p> |
