| 单词 | spool valve |
| 释义 | > as lemmasspool valve spool valve n. a valve in which a shaft with channels in its surface slides inside a sleeve with ports in it, the flow between which depends on the position of the shaft in the sleeve. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > control(s) > [noun] > valve > others washer1596 turncock1702 air cock1709 Jack-in-the-box1728 runner1754 stop-valve1829 three-way cock1838 ball valve1839 relief valve1846 poppet valve1851 plunger valve1854 pot-lid1856 reflux valve1857 screw-down1864 mica valve1880 tide flap1884 tube-valve1884 swing-tap1892 relay valve1894 Schrader1895 pilot valve1900 mixer valve1904 spool valve1908 spill valve1922 safety valving1930 three-way1939 1908 R. Peele Compressed Air Plant xx. 248 The throw of the spool valve..is produced indirectly by the introduction of a system of small, auxiliary ports, connecting the ends of the valve chest with the cylinder. 1926 R. M. Evans in J. Roberts Mining Educator I. 618/2 There are two forms..: the air-thrown or spool-valve drill for use with compressed air, and the tappet drill for use with steam. 1971 Farmers Weekly 19 Mar. 82/4 Three hydraulic spool valves were fitted on the side of the trailer. One lifted and lowered the trailer. 1976 D. E. Turnbull Fluid Power Engin. vi. 172 The spool valve was originally developed..more than a century ago when it was used for controlling the flow of steam to steam engine cylinders at the famous Gorton locomotive works in Manchester. < as lemmas |
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