轮机英语阅读 电子课件 轮机英语阅读 UNIT 3 Fuel oil system of marine diesel engine.ppt

Unit 3 Operating systems of marine diesel engines (I) Key points: 1. Know the working procedures of fuel system 2. Know the working procedures of cooling water systems Difficult points: 1. Master the working procedures of fuel injection system 2. Master the working procedures of fresh water cooling systems Contents（Text A） Part 1 Fuel oil selection Language Brainstorming 1.Analysis 分析 2.Refinery 提炼 3.Specification 规格 4.Parameter 参数 Part 2 Fuel oil supply Language Brainstorming 1.Sludge 油渣 2.Lag 防护套 3.Cavitation 气穴现象 4.Booster pump 增压泵 Part 3 fuel injection Warm up Injection combustion Language Brainstorming 1.Flyweight 飞重 2.Governor 调速器 3.Servomotor 伺服马达 4.Throttle 节流 Part 4 combustion of fuel Language Brainstorming 1.Penetration 渗透 2.Velocity 速度 3.Turbulence (液体或气体的)紊乱，扰动 Contents (Text B) Part 1Fresh water cooling systems Part 1Fresh water cooling systems Warm up Language Brainstorming 1.Respectively 分别地，各个地 2.In duplicate 两重的 3.Bypass 旁通 4.Additive 添加剂 Part 2Sea water cooling system Part 2 Sea water cooling system Warm-up(video) Language Brainstorming 1.Couple 结合，偶合 2.Incorporate 合并；与…保持联系 3.Erosion 侵蚀，服饰 4.Gland 密封压盖，填料函 Students’ Aiding Web Pages 1./ 2..au/Marops/data/text/ 3. / Assignment Exercise II. Exercise IV. Look at the picture on the right and explain the working procedure of fresh water cooling systems. 2. Brief introduction of jacket cooling water system 1. Brief introduction of fresh water cooling systems 3. Brief introduction of piston cooling water system Concept chain Fresh water Piston cooling Water system Jacket cooling water system 缸套冷却水系统 5.Layer 层 6.Inhibitor 抑制剂 7.Solder 锡焊 8.Circuit 电路 9.Head/expansion 膨胀柜 Text Analysis The same system may also circulate exhaust valves and water cooled turbochargers if fitted. 如果安装了的话，同样的系统也在排气阀以及水冷涡轮增压器中循环。 省略了it is, it 指的是the same system Text Analysis Pumps are arranged in duplicate, each being sufficient to operate the system alone while the other acts as standby. 泵是成双安装的，每个都足以单独在系统