| 单词 | plenum chamber |
| 释义 | > as lemmasplenum chamber plenum chamber n. (a) (in a ventilation, heating, etc., system) an enclosed space into which the outside air is forced (after any conditioning) and from which ducts lead to outlets inside the building; (b) any analogous enclosed space in which a higher pressure is maintained by the forcing in of air, as in some air-cooled engines, ramjets, hovercraft, etc. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > [noun] > parts of helm1663 spring-beam?1794 steam-jacket1838 cut-off1849 steam-jacketing1870 starting block1881 timing chain1889 timing mark1901 decelerator1907 air drain1908 plenum chamber1908 reservoir1920 the world > matter > gas > air > fresh air > [noun] > supplying fresh air or ventilation > specific method of ventilating building > enclosed space for outside air plenum chamber1908 plenum space1916 plenum1931 society > occupation and work > equipment > machine > machines which impart power > engine > other types of engine > [noun] > other specific engines > parts of plenum chamber1908 1908 A. G. King Pract. Steam & Hot Water Heating xxi. 227 The heated air..may be discharged under a slight pressure into a plenum chamber with which all supply pipes or warm-air ducts are connected. 1949 Aircraft Engin. Nov. 346/2 A disadvantage is that the pressure of the combustion chambers raises the temperature of the air in the plenum chamber, with a slight loss of power. 1967 New Scientist 31 Aug. 435/1 The cushion of air on which a hovercraft rides is created continuously by a flow of air delivered through ducts, which empty themselves into the plenum chamber by nozzles equally spaced around its edge. 1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 35 For filtering low frequency noise from the fan or conditioning equipment, a plenum chamber..is interposed between the equipment and the ducting. 1997 AOPA Pilot Nov. 52/1 Ransom even enclosed his engine in a plenum chamber to control airflow. < as lemmas |
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