03_VR6-3.0L-发动机试卷.ppt

拆卸与安装点火线圈 拆插头 拆点火线圈 所需专用工具： T10095A，T10118 N316进气歧管风门控制阀 ·怠速：电磁阀通电， 翻板关闭 ·2500转以上：电磁阀断电，翻板打开 87A 执行元件 12.2008 ? VSQ/TT ? */10 Thank you 2. 发动机渊源: ? The 3.0L V6 FSI engines belong to the VR family of engines. and the former engines are the 3.2L and the 3.6L VR6 FSI engines. Their reduced V-angle,compared with a traditional V-engine, gives them an extremely compact and space-saving design. The VR engines have a long history at Volkswagen. The VR success began in 1992 with the start of production of the 2.8L VR6 engine. In 2002, the VR6 was converted to four-valve technology. In 2003 the capacity of the VR6 was increased to 3.2 liters, resulting in a power increase of up to 250 hp (184kW). Then, in 2006, the capacity was increased to 3.6 liters, resulting in a power increase of up to 280 hp (206kW) .The VR engines are highly suitable for a road rangeof applications due to their compact design. ? in 2003-2006,The displacement was increased to 3.2 liters or 3.6 liters, combined with the switch to the FSI technology. This yields a noticeable increase in power and torque compared with the previous engines. The 3.6L engine has a maximum rated power of 280 hp (206 kW) and produces a maximum torque of 265 lb.fts (360 Nm) while The 3.2L engine has a maximum rated power of 250 hp (184 kW) and produces a maximum torque of 243 lb.fts (330 Nm). in 2009,based on the 3.6 liter VR engine, VW specially develop 3.0 liters VR engine for china market, it has a maximum rated power of 250 hp (184 kW) and produces a maximum torque of 228.2 lb.fts (310 Nm). ? 3. 发动机的技术特征 ? Compact size FSI direct gasoline injection Four-valve technology with roller rocker arms Internal exhaust gas recirculation Single-piece resonace intake manifold made of plastic, which use a flap closing and opening between subchamber 1-2-3 and subchamber 4-5-6 of intake manifold, to acquire engine high torque (low rotate rate) and high power (high rotating rate) seperately by resonance charge effect. Cast i