航空工程英语基础（中英文对照）(24)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

LESSON 18
AUXILIARY POWER UNIT (1)
VOCABULARY
1. electrical [ ilektrikl ] a. 电的
2. completely [ km pli:tli ] ad. 完全地
3. enclose [ inkluz ] vt. 封入; 装入
4. titanium [ tai teinim ] n. 钛
5. inlet [ inlet ] n. 入口; 引入
6. entrance [ entrns ] n. 入口
7. split [ split ] v. 分开
8. path [ pæ ] n. 通路; 路径
9. hole [ houl ] n. 孔; 洞
10. jet pipe [ d et ] [ paip ] 喷射管
11. pack [ pæk ] n. (空调)组件
12. readily [ 'redili ] ad. 容易地; 快速
13. accessible [ æksesbl ] a. 容易接近(达到)的
14. inspection [ in spekn ] n. 检查; 检验
15. directly [ di rektli ] ad. 直接地
16. removal [ ri mu:vl ] n. 拆卸; 移开
17. simple [ simpl ] a. 简单的
18. hoist [ h ist ] n. 吊车
19. cable [ keibl ] n. 钢缆；电缆
20. centrifugal [ sentrifjugl ] a. 离心的; n. 离心机(力)
21. radial [reidil ] a. ; n. 径向的; 径向
22. inflow [inflou ] n. 流入; 内流(式)
23. solenoid [sulin id ] n. 电磁线圈
24. place [ pleis ] vt. 放置
25. override [ ouv raid ] v. ; n. 超控
26. regulate [ regjuleit ] vt. 调节; 管理
27. initial [ inil ] a. 最初的; 初始的
28. contamination [ kntæmi nein ] n. 污染
29. apply [ plai ] v.施加; 作用
30. meter [ mi:t ] n. 仪表; 米v. 测量;量度
31. near [ ni ] ad. ; prep. 接近; 将近;差不多
32. constant [k nstnt ] a. 恒定的;不变的
33. speed [ spi:d ] n. 速度
34. safe [ seif ] 安全的;稳定的
35. plug [ plg ] n. 插头;插塞
36. circuit [s:kit ] n. 电路
37. ignition exciter 点火激励器
38. hermetically [ h: metikli ] ad. 密封的;不透气的
39. seal [ si:l ] n. ; vt. 密封
40. metal [ metl ] n. ; vt. 金属
41. install [ inst :l ] vt. 安装
42. interface [intfeis ] v. 连接
43. sequencing [si:kwnsi ] a. 程序化的
44. energize [end aiz ] v. 激励;通电;吸合
45. ensure [ inu ] vt. 保证;确保
46. initiate [ iniieit ] vt. 起燃(爆);起始
47. minimum [minimm ] n. ; a. 最低;最小(的)
48. lubricate [lu:brikeit ] v. 润滑; 滑油
49. build up 形成;产生;出现;增强(大)
50. psig = pounds per square inch gage 表压(磅/英寸)
51. de-energize [ diend aiz ] vt. 解除激励; 断电;释放
52. remain [ rimein ] vi. 保持… 状态
53. conduct [ kn dkt ] v. 引导
54. noise [ n iz ] n. 噪音
55. muffler [mfl ] n. 消音器
56. thus [ ðs ] ad. 因而;从而;因此
57. cylindrical [ silindrikl ] a. 园柱(筒)形的
58. felt [ felt ] n. 毡垫;绝缘纸
59. liner [lain ] n. 衬里;衬垫
60. drip pan [ drip ] [ pæn ] n. 盛油器;集油盘
61. gap [ gæp ] n. 间隔;间隙
2
TEXT
[1] The auxiliary power unit (APU) is used for providing :
1) Compressed air for engine starting.
2) Compressed air to the air conditioning system on the ground or in-flight.
3) electrical power to the airplane electrical system on the ground or in-flight,
(we will discuss APU electrical power in the next lesson ).
Fig. 18-1 APU Location
[2] The APU engine is located in the aft end of the fuselage, behind the pressure
bulkhead and below the horizontal stabilizer. The APU engine is completely
enclosed in a titanium shroud. The air inlet door is located on the right side of the
aft fuselage for air entrance. The airflow is split into two paths, one for the engine
and the second for the accessories cooling. The cooling air exhaust overboard
through a hole in lower shroud. The exhaust ducting is cooled by four air inlets
around the jet pipe. Fuel is supplied through a shrouded line from fuel tank. Bleed
air from the APU is supplied to the pneumatic system through a bleed valve, the
bleed air can be used to operate either of the two air-conditioning packs or for main
engine starting. The APU is readily accessible for inspection, maintenance or
removal through a large door in the fuselage directly below it. Removal is
accomplished by lowering the assembly with a simple hoist and cable system.
Fig 18-2 APU (Garrett 85-129 )
The APU is a single shaft gas turbine engine with a two stage centrifugal
compressor, a single combustion chamber and one radial inflow turbine. The
accessories group, driven by the gear box, is at the front of the unit.
　
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：航空工程英语基础（中英文对照）(24)