船舶电喷柴油机-man_b amp;w共轨技术.ppt

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 MAN 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 Operation 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 sumpFine 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: 72006-01-237El-driven pumpsME Engine, Pump Drive Hydraulic PumpHydraulic PumpStep Up GearStep Up GearChain wheel for Chain wheel for 4” Duplex chain4” Duplex chain2006-01-239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 UnitHCUFIVACylinder lubricator systemAlpha Lubricator for ME-EngineAlpha Lubricator for ME-Engine3331377/20041021 (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 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 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 pipeME ME Fuel Fuel Oil Pressure BoosterOil Pressure Booster S50MC-CS50MC-CS50ME-CS50ME-CFuel Fuel P PlungerlungerHydraulic Hydraulic actuatoractuatorFuel oFuel oil il inlet inlet pressurepressure 8 bar8 barFeed back Feed back Position sensorPosition sensorSuction ValveSuction Valve7S50ME-C7S50ME-CFuel Fuel I Injection njection S SystemystemHigh pressureHigh pressure hydraulic oilhydraulic oil - - inletinletTo dTo drainrainMembraneMembraneaccumulatoraccumulatorFuel oil Fuel oil inletinlet 8 bar 8 barSuction valveSuction valveELFI / FIVAELFI / FIVAProportionalProportionalV ValvealveSlide Slide Fuel Fuel valvevalveFuel Fuel p plungerlungerHydraulic Hydraulic pistonpistonHigh pressure High pressure pipepipe7S50ME-7S50ME-C CHydraulic Cylinder UnitHydraulic Exhaust Valve Actuator ELVAOn/Off ValveDistribution BlockFuel oil Pressure BoosterELFIProportional Valve2006.01.16 (4140 / PWN)Fuel Oil Injection1.The pistons move to the bottom position.2.The fuel inlet is open.3.Hydraulic oil leaves the hydraulic oil chamber via the ELFI valve.4.The accumulators are supplied by the Hydraulic Power Supply. The pressurised hydraulic oil is held back by the closed ELFI valve.Unpressurised fuel oilPressurised fuel oilUnpressurised hydraulic oilPressurised hydraulic oilELFI ValvePhase 1Fuel Oil Injection5.The ELFI valve is activated upwards, closing the return flow and opening for the flow of pressurised hydraulic oil. The oil passes through the ELFI valve and fills the hydraulic chamber.6.The high pressure forces the pistons upwards.7.The fuel oil inlet is closed.8.The pressure on the fuel oil rises and exceeds the force of the spring in the cylinders fuel injection valve.Unpressurised fuel oilPressurised fuel oilUnpressurised hydraulic oilPressurised hydraulic oilPhase 2ELFIValve柴油机转速控制 燃油喷射采用模拟量，燃油量的多少由CCU控制FIVA的比例阀来控制喷油量，来控制主机转速。

通过控制燃油进油阀的开度来实现的 采用一个三位三通液压伺服阀来控制喷油和排气阀的开启ELVA on-off ELVA on-off valvevalveExhaust Exhaust valve valve ActuatorActuatorExhaust Exhaust valve spindlevalve spindleHigh pressureHigh pressure hydraulic oilhydraulic oil inletinletMembraneMembraneaccumulatoraccumulatorHydraulicHydraulic push rodpush rodTo dTo drainrain2006.01.16 (4140 / PWN)排气阀动作原理排气阀动作原理HCU ELVA。