MTU柴油機燃油噴射系統的特點

8000系列則采用了高壓共軌燃油噴射、相繼增壓（STC）和柴油機控制型發動機管理系統（MDEC）等技術。其高壓共軌燃油系統是建立在直噴技術、預噴射技術和電控技術基礎之上的一種全新概念的噴油系統，其特點為：噴油壓力的建立與噴油過程無關；噴油壓力、噴油過程和噴油持續期不受負荷和轉速的影響；噴油定時與燃油計量完全分開；可以自由調整每缸的噴油量和噴油始點；能實現預噴射、快速停噴、后噴射和多段噴射等。而相繼增壓系統則進一步擴大了柴油機的功率范圍，并使發動機在低、中等輸出

功率時有優越的加速性能、顯著降低柴油機燃油消耗率和排放水平、延長了發動機兩次維修之間的時間、經濟性和可靠性得到了進一步提高，MTU柴油機|MTU柴油機燃油噴射系統的特點維修技術|MTU柴油機燃油噴射系統的特點資料|MTU柴油機燃油噴射系統的特點維修服務商技術水平更為先進，整體性能更為優越。 3 MTU燃油噴射系統的工作原理和優點

2000系列柴油機采用由電磁閥控制的單泵燃油

電子噴射系統。該系統由電磁閥控制的單體泵—高壓油管—噴油嘴組成。每個氣缸都有一個對應的單體泵，單體泵安裝在柴油機的 V形槽中，由凸輪軸進行驅動，凸輪的輪廓線可根據柴油機的不同用途進行專門設計。安裝在單體泵燃油進口處的電磁閥受柴油機電子控制系統控制，任一缸的噴油量和供油始點都通過控制電磁閥開關來實現，并且噴油量和供油始點可由柴油機電子控制系統進行任意調節，從而實現了噴油優化。

圖 1單泵燃油電子噴射系統原理圖

MTU diesel engine fuel injection system features
MTU2000 and 4000 series are 8, 12 and 16-cylinder, three kinds of models, the 8000 Series, 12, 16 and 20 cylinder models. 2000 and 4000 series models using the MTU of the order of the development of the supercharger, Split cooling system, exhaust manifold of the three-layer wall structure is advanced, mature technology; advanced electronic control system, fuel system, using advanced electronic injection technology (including the single-pump fuel electronic injection system and high pressure common rail electronic injection system). So that they can adapt to a variety of different purposes, to change the configuration of its attachment or certain parts of the structure, you can meet the needs of the ship, rail and heavy road vehicles, and other industrial fields; long service life, reliability, The use of easy maintenance, repair and maintenance of small workload; low fuel consumption, power, economy, reliability, advanced noise and vibration emissions targets.
The 8000 Series uses a high pressure common rail fuel injection, sequential turbocharging (STC) and diesel-controlled engine management system (MDEC) technology. The high pressure common rail fuel system is the establishment of a direct injection technology, fuel injection system of pre-injection technology and electronic control technology on the basis of a new concept, which is characterized by: the establishment of the injection pressure and injection process; injector pressure from the effects of load and speed of the injection process and the injection duration; completely separate from the fuel injection timing and fuel metering; can freely adjust each cylinder fuel injection quantity and fuel injection starting point; to achieve the pre-injection, fast Minting, after injection and multi-stage injection and so on. Sequential turbocharging system to further expand the power range of diesel engines and engines at low and medium output
Superior acceleration performance, significantly reduce diesel fuel consumption and emission levels, to extend the time between maintenance of the engine twice when the power, economy and reliability has been further improved, more advanced technical level, the overall performance is superior to . MTU fuel injection system works and benefits
2000 series diesel engine using a single pump controlled by a solenoid valve fuel
The electronic injection system. The system consists of a solenoid valve control unit pump - high pressure tubing - nozzle. Each cylinder has a corresponding unit pump, unit pump installed in the diesel V-shaped slot, driven by the camshaft, cam contour can be specifically designed according to the different uses of diesel engines. Solenoid valve installed in the unit pump fuel imports by the diesel engine electronic control system to control any one-cylinder fuel injection quantity and fuel supply starting point by controlling the solenoid valve switch to achieve, and the fuel injection quantity and fuel supply starting point may be a diesel engine electronic control The system of arbitrary regulation, in order to achieve a fuel injection optimization.
Figure schematic of a single pump fuel electronic injection system