船舶电喷柴油机-MAN B&W共轨技术

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1、 大连远洋运输公司大连远洋运输公司 船舶轮机新技术 共轨技术在船上的应用 大连远洋运输公司 郑连国 2012.11.25MAN B&W柴油机发展历程柴油机发展历程1、1897年德国工程师鲁道夫，狄赛尔(RudolfDiesel)在MAN柴油机公司的奥格斯堡(Augsburg)工厂发明了世界上第一台柴油机。2、丹麦B&w公司成立于1846年，总部位于丹麦哥本哈根，是丹麦一家大型船厂和领先的柴油机生产商。 1898年，鲁道夫，狄赛尔授权丹麦B&W公司(Burmeister&W&inAS)生产柴油机。3、 1971年丹麦B&w公司将船厂和柴油机制造分离为两个独立的公司，柴油机制造部分于1980年被德

2、国曼恩集团收购，改名为MAN B&W柴油机丹麦公司(MAN B&W Diesel AS)。4、 2006年，德国曼恩集团为了更好地整合其在德国、丹麦、法国、英国的柴油机业务，将MAN B&W柴油机公司(MAN B&WDiesel AG-德国法律下注册)重组为MAN柴油机公司(MAN Diesel SE-欧盟法律下注册)。 典型典型ME机型结构及代码机型结构及代码MC机型与机型与ME机型比较机型比较Hydraulic Power SupplyMAN B&W 公司的公司的ME的设计特点的设计特点1、燃油共轨管路的压力为低压0.7-0.8MPa,伺服油压力为20MPa，都属于低压系统。每缸进行二次增

3、压来达到喷射压力的要求。2、液压伺服油是是由主滑油泵送来的滑油通过二次过滤（6 m），再通过曲轴驱动的增压泵或电动驱动增压泵，增压到20 MPa送到阀箱，通过控制各缸的电磁阀，使伺服油分别进入各缸排气阀的液压缸单元进行排气操作和进入各缸燃油增压的液压单元进行增压喷油操作。3、ME系列柴油机燃油喷射、排气阀开启、关闭和换向等控制，采用计算机直接控制系统。Elva ：Electronic Valve ActuationElfi: Electronic Valve Fuel Injection FIVA:Fuel Injection and Valve ActuationMOP:Main Opera

4、tion PanelTwo-Stroke Medium BoreME Engine, Design ConceptHCU Unit 60ME-C.Fuel PumpExhaust Valve ActuatorElva Elfi Alpha LubricatorPlug ValveCommon supply of HP Oil2006.01.16 (4140 / PWN)工作原理工作原理-The ME Engine Hydraulic Oil LoopFuel 10 barHydrauliccylinder unitAlpha lubricatorServo oilreturn to sumpF

5、ine aut. filterPiston cooling + bearingsFrom sumpMain lubepumpSafety and AccumulatorblokEL. driven hydraulic pumpsEngine drivenhydraulic pumpsServo oilFuel oil pressureboosterExhaust valve actuatorELFIELVACyl. 1Cyl. 2Cyl. 3Cyl. 4Cyl. 5Cyl. 6CCUCCUCCUCCUCCUCCU200 bar ISO 4406: 13/16 NAS Code: 7El-dri

6、ven pumpsME Engine, Pump Drive Hydraulic PumpStep Up GearChain wheel for 4” Duplex chain滑油自动冲洗滤器工作原理滑油自动冲洗滤器工作原理Filtering processBack flushing process1) Distributor block2) Components:FIVAAccumulatorsCylinder lubricator3) Highpressure pipesHYDRAULIC CYLINDER UNIT-HCUHydraulic Cylinder UnitHCUFIVAFIV

7、A Degree Crank angle -20020406080 100 120 140 160 180 200 220 240 260 280 300 320 340 360Injection start (0)Injection End (20)Exhaust valve open (110)Exhaust valve Close (270)Approximate timing of events to be carried out by the FIVA valveOn an ME- engine the timing of injection is variable and this

8、 is just an example.Cylinder lubricator system3331377/20041021 (2200/OZS)Inductive proximity sensor for feed-back signal to control of piston movementLevel sensor for cylinder oil in lubricatorInjection plunger Stroke adjustingscrewDrainoil outlet200 bar system oil supplySignal for lubrication from

9、controllerOutlets forcylinder liner lub. oilinjectorsSpacer for basic setting of pump strokeActuator pistonSealingringCylinder lub. oil inletNon-return valveEmergency cylinder lubricationIn case of CCU failure, where the CCU cannot be changed immediately, the cylinder lubrication can be achieved by

10、a temporary cable from one of the ECU units, plug 52, to the solenoid valve on the lubricator on the unit in question.The lubrication will be with random timing.ME(-C) Hydraulic Cylinder Unit05-02-2004 (2500/KNB)Hydraulic Cylinder UnitL70MEDouble wall pipeHCU Distributer blockDouble wall pipeHigh pr

11、essure hydraulic oil - inletTo drainMembraneaccumulatorFuel oil inlet 8 barSuction valveELFI / FIVAProportionalValveSlide Fuel valveFuel plungerHydraulic pistonHigh pressure pipeHydraulic Cylinder UnitHydraulic Exhaust Valve Actuator ELVAOn/Off ValveDistribution BlockFuel oil Pressure BoosterELFIPro