poppet valven.
/ˈpɒpɪt valv/, U.S. /ˈpɑpət ˌvælv/ A valve consisting of a flat end-piece which is lifted in and out of an opening by an axial rod.
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
1851 Sci. Amer. 29 Mar. 222/1 A poppet valve, which admits steam to the slide valve chamber.
1930 D. G. Mackail How Amusing! 130 Mr. Marchant's mouth trembled like a poppet-valve under full load.
1961 F. A. S. Brown Nigel Gresley xvii. 122 With poppet valves there is less restriction of steam flow through the ports and consequently less throttling of the steam supply to the cylinders.
1986 Autocar 26 Nov. 57/3 The lack of a poppet valve means that gas flow is not impeded.
Derivatives
ˈpoppet-valved adj. having one or more poppet-valves.
ΘΚΠ
society > occupation and work > equipment > machine > parts of machines > control(s) > [adjective] > provided with a valve > relating to type of valve
shut-off1869
non-return1883
pop-off1902
poppet-valved1912
1912 Motor Traction 12 Oct. 328/2 The writer has in his possession a list of some 250 poppet-valved engines, together with such data as valve diameters, [etc.].
1919 W. H. Berry New Motoring xvi. 126 The poppet-valved engine, badly made and of unsuitable materials, can be an atrocious production.
2003 Eastern Daily Press (Norwich) (Nexis) 3 Nov. The final result was a very clean, neat engine which was quieter when running than any poppet valved engine.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online June 2022).
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n.1851