| 单词 | pressure-feed |
| 释义 | pressure-feed, v. and n.
[See feed v. 7, 8 c and feed n. 5.]
A. v. trans. To supply (material, esp. fuel) by means of applied pressure.
B. n. Also pressure feed. A supply system in which the flow of material is maintained by applied pressure; the supplying of material in this way. So ˈpressure-fed ppl. a., supplied with material in this way; utilizing a pressure feed.
1904Autocar 6 Aug. 164/1 (heading) Carburetter. Pressure feed from the exhaust. Ibid., The lubricator..is also pressure fed. 1906W. W. Beaumont Motor Vehicles II. viii. 158 Pressure-fed lubrication is adopted for the engine and for the petrol feed. Ibid. xii. 206 Pressure feed is used, obtained by a shunt from the exhaust pipe to a distributing box. 1909D. Leechman Carburetters ix. 66 Petrol is maintained at a certain level..by means of a float and needle valve when the petrol is pressure fed. 1914,1925[see gravity-feed n.]. 1936Discovery Sept. 299/2 The rocket motor of today with its..complicated system of pressure feeds, safety valves and dual liquid-fuel storage tanks, little resembles the old-style cardboard tube and gunpowder. 1961H. H. Koelle Handbk. Astronaut. Engin. xx. 16 Pump-fed systems are lighter than pressure-fed systems for all but the very shortest-duration requirements. |
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