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MAN L21/31是MAN B&W旗下四冲程机器，有6/7/8/9缸机型。L21/31 是 MAN Energy Solutions 旗下的四冲程小缸径发动机系列，不属于 MAN B&W 主推进主机产品线，但设计上可与 MAN B&W 主机兼容配套使用。L21/31 在设计上与 MAN B&W 主机（如 7S60ME-LGIM）完全兼容，燃油系统、冷却水系统、启动空气系统可集成在同一机舱内，减少初投资，简化操作维护。
在线订购咨询
| MAN L21/31 缸盖Cylinder Head | MAN L21/31 阀座/进气阀座Inlet Valve Seat | MAN L21/31 空冷器/中冷器Air Cooler |
| MAN L21/31 缸套Cylinder Liner | MAN L21/31 排气阀座Exhaust Valve Seat | MAN L21/31 凸轮轴Camshaft |
| MAN L21/31 活塞Piston | MAN L21/31 喷油器Fuel Injection Valve | MAN L21/31 主轴瓦Main Bearing |
| MAN L21/31 水套Cooling Jacket | MAN L21/31 摇臂Rocker Arm | MAN L21/31 连杆瓦Connecting Rod Bearing |
| MAN L21/31 连杆Connecting Rod | MAN L21/31 油嘴Nozzle | MAN L21/31 滤芯Filter Element |
| MAN L21/31 活塞环Piston Ring | MAN L21/31 柱塞Plunger & Barrel | MAN L21/31 密封圈O-Ring |
| MAN L21/31 曲轴Crankshaft | MAN L21/31 出油阀Delivery Valve | MAN L21/31 密封件Sealing Ring |
| MAN L21/31 气阀/进气阀Inlet Valve | MAN L21/31 高压油泵/喷油泵Fuel Injection Pump | MAN L21/31 垫片Gasket |
| MAN L21/31 排气阀Exhaust Valve | MAN 调速模块 伺服马达 | MAN 增压器 |
型号缸数 型号缸数
G30ME-B 5/6/7 K80MC 6/7/8/10/12
G35ME-B 5/6/7 K80MC-C 6/7/8/10/12
G40ME-B 5/6/7 K80ME-C 6/7/8/10/12
G40ME-C 5/6/7 K90MC 6/7/8/10/12
G45ME-C 5/6/7 K90MC-C 6/7/8/10/12
G46ME-B 5/6/7 K98MC 6/7/8/10/12
G46ME-C 5/6/7 K98MC-C 8/10/12
G50ME-B 5/6/7 K98ME 12
G50ME-C 5/6/7 K98ME-C 12
G60ME-B 5/6/7 K98ME-C 12
G60ME-C 5/6/7
G70ME-C 6
G80ME-C 7/8
G90ME-C 7/8
G95ME-C 7/8
型号 缸数 型号 缸数
S26MC 5/6/7 L26MC 5/6/7
S30ME-B 5/6/7 L35MC 5/6/7
S35MC 5/6/7 L42MC 5/6/7
S35MC-C 5/6/7 L50MC 5/6/7
S35ME-B 5/6/7 L60MC 5/6/7
S40ME-B 5/6/7 L60ME-C 5/6/7
S42MC 5/6/7 L70MC 5/6/7
S46MC 5/6/7 L70ME-C 5/6/7
S46MC-C 5/6/7 L80MC 5/6/7
S46ME-B 5/6/7 L90MC 5/6/7
S46ME-C 5/6/7
S50MC 5/6/7 型号 缸数
S50MC-C 5/6/7 L16/24 5/6/7/8/9
S50ME-B 5/6/7 L20/27 5/6/7/8/9
S50ME-C 5/6/7 V23/30 12
S60MC 5/6/7 L 23/30 6/7/8/9
S60MC-C 5/6/7 L 23/30h 5/6/7/8/9
S60ME-B 5/6/7 L21/31 6/7/8/9
S60ME-C 5/6/7 L27/38 5/6/7/8/9
S70MC 5/6/7 L28/32 5/6/7/8/9
S70MC-C 5/6/7 V28/32 12/14/16/18
S70ME-C 5/6/7 L28/32h 5/6/7/8/9
S80MC 5/6/7 V28/32h 12/14/16/18
S80MC-C 5/6/7 L32/40 6/7/8/9
S80ME-C 5/6/7 V32/40 12/14/16/18
S90MC 5/6/7
S90MC-C 5/6/7
S90ME-C10/12
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