| 摘要 |
<p>The system for pressurised oil supply to hydrostatic bearings and guideways, has pump for each pocket. This system ensures high bearing rigidity and eliminates restrictor valve losses. The theoretical delivery curve of the volumetric pumps used can reach zero value and can maintain zero value for a specified period. Oil is delivered by single or double cylinder piston pumps. These pumps generate sufficiently smooth, pulsation free delivery stream. Delivery and pause times alternate in constant cyclic order.</p> |
