新手求教如何启动发动机？

沙漠漂木 · 发表于 2016-1-2 22:41:35

如何启动发动机？如何启动Apu？

习以为常 · 发表于 2016-1-3 09:17:53

太专业了，不会

lovecjj · 发表于 2016-1-3 09:41:01

不会，有会的么，求教

workyoung · 发表于 2016-1-3 10:48:42

铜球

zayear · 发表于 2016-1-3 11:40:41

启动发动机准备工作不提了
1，Move the ignition select switch to set the ignition source.
2， Put the ENGINE START switch for the applicable engine to the GRD position and release. Make sure these conditions occur:
NOTE: If you started the engine with battery power, only N1 and N2 indications will be available to help with the start. All other indications are available after 12-15% N2. (a) On the center DU, the START VLV OPEN maintenance message comes on and you see the indications for N1 and N2. (b) If the ground cart or the other engine supplies the pneumatic power, you see a decrease in the pneumatic manifold duct pressure. (c) If the APU supplies the pneumatic power, you see a increase in the pneumatic manifold duct pressure.
3， When the engine is at 25% N2 or the maximum motoring speed, move the start lever to the IDLE position. (a) If the engine speed is less than 25% N2, you can move the start lever forward to the IDLE position when the engine is at its maximum motoring speed. NOTE: The maximum motoring speed is defined as the speed when the rate of increase in N2 is less than 1% during a 5 seconds time period. The minimum maximum motoring speed is 20% N2.
4， Monitor the EGT and N2 carefully as the engine starts for all unusual conditions.
5， Do these steps if the engine does not start (no EGT increase) in 15 seconds: NOTE: If the engine does not start after 15 seconds, the EEC (FADEC) will automatically close the FMV and turn the ignition off. (a) Move the start lever to the CUTOFF position. (b) Continue to motor the engine for 60 seconds to remove all fuel from the engine. 1) Make sure you observe the starter limits in this task: (TASK 71-00-00-800-806-F00). (c) Put the start switch to the OFF position.
6，Monitor the EGT, fuel flow, N1 and engine oil indications as the engine accelerates to the idle speed. NOTE: Make sure that the engine acceleration does not slow or stop before the idle speed.
SUBTASK 71-00-00-860-052-F00 (21) The usual engine parameters for a standard day engine start are as follows: (a) N1: approximately 20% (b) N2: approximately 59% (c) EGT: approximately 410 degrees C (770 degrees F) NOTE: The EGT can be between 320 degrees C (608 degrees F) and 520 degrees C (968 degrees F) with different outside air temperatures, bleed air configurations and other engine conditions. (d) Fuel flow: approximately 600 lb/hr (272 kg/hr).
7， On the overhead panel, P5, move the APU BLEED switch to the OFF position. Make sure the DUAL BLEED light goes out.
简单的节选了一下可能不全而且有很多的准备工作和启动过程中包括启动后的监控检查项目没有列出来有兴趣还是查一下手册 TASK 71-00-00-800-808-F00 Start the Engine Procedure (Normal Start) 一切以手册为准
APU启动同样准备、启动、结束阶段的检查工作不一一列举
1，Make sure the BAT switch [1] on the P5 forward overhead panel is set to the ON position.
2， Do a check of the fire detection system for the APU
3，Set the APU master switch [16] to the START position and release it to the ON position.
4，Monitor these indications on the P5 forward overhead panel: (a) Make sure the LOW OIL PRESSURE light [15] goes off before the APU engine speed is 95%. (b) Look at the CPS FREQ display [2]. NOTE: With no load applied to the APU, the CPS FREQ display must become stable at 395-405 CPS when the APU engine speed is 100%. NOTE: The time necessary for an APU start must be less than 90 seconds.(c) Make sure the APU GEN OFF BUS light [12] comes on when the APU engine speed is 100%.

民航人hu · 发表于 2016-1-3 14:53:54

这么复杂！！

wongdersuns · 发表于 2016-1-3 15:39:48

工作了就会了

cccjjjbbb · 发表于 2016-1-3 16:56:33

去问有试车授权的，还有你要知道这个干吊

sunsxld · 发表于 2016-1-4 17:11:35

启动不是重点，重点是故障等应急处置

wanghao1123 · 发表于 2016-1-5 12:53:54

学习了

7788645 · 发表于 2016-1-6 08:49:51

APU的启动可以在手册里查49第二个里面，发动机启动可以看你们公司的试车手册呀，

1104560116 · 发表于 2016-1-6 19:47:18

学习了

沙漠漂木 · 发表于 2016-1-6 21:21:03

zayear 发表于 2016-1-3 11:40
启动发动机准备工作不提了
1，Move the ignition select switch to set the ignition source.
2， Put th ...

解答得很全面，谢谢。

十点钟先生 · 发表于 2016-1-8 13:31:17

只说步骤的话：apu引气高流量位，选择点火嘴，启动电门grd位，n2 25%以上拉启动手柄到idle

gujinrui86 · 发表于 2016-1-8 13:59:45

点火启动

:lol:lol:lol:lol

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[70-80发动机CFM56-7] 新手求教如何启动发动机？

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