奥迪A4发动机

1、Service Training 02/2000Output kW发动机发动机4 inline1.6l(75 kW)4 inline 2.0l(96 kW)4 inline1.8T(110 kW)V63.0l(162 kW)V62.4l(121 kW)4 inline 1.9l TDI(74 kW)4 inline1.9l TDI(96 kW)V62.5l TDI(132 kW)V6 2.5l TDI(114 kW)汽油机汽油机柴油机柴油机Engines for model launchEngines (subsequent to start of production)Service Tra

2、ining 02/20002.0 MPI 5VModifications to the 1.8 5V engine: new aluminium crankcase balancing shaft in the sump modified switch-over intake system cylinder head with ladder frame continuously variable camshaft (intake only) mapped coolingOutput 96 kW (130 bhp) at 5,700 rpmTorque195 Nm at 3,300 rpm1.8

3、T (110 kW): adopted from previous A4 mapped coolingService Training 02/20003.0 MPI 5VModifications to the 2.8 5V: new aluminium crankcase increase of swept volume to 3 litres balancing shaft in the sump modified switch-over intake system cylinder head with ladder frame continuously variable camshaft

4、 (intake and exhaust) camshaft drive by toothed belt (no chain between the intake and exhaust camshafts)Output162 kW (220 bhp) at 6,300 rpmTorque300 Nm at 3,200 rpm2.4 (121 kW): adopted from previous A4Service Training 02/20001.9 TDI 2V PD Adopted from 1.9 TDI PD A31.9 TDI (74 kW): 1.9 TDI PD is the

5、 basic engineOutput96 kW (130 bhp) at 4,000 rpmTorque285 Nm at 1,750-2,500 rpm*quattro 310 Nm at the same engine speedService Training 02/20002.5 TDI 4V Adopted from A6 2.5TDI 132kW Only available as quattroOutput132 kW (180 bhp) at 4,000 rpmTorque370 Nm at 1,500-2,500 rpm2.5 TDI (114 kW): The 2.5 T

6、DI (132 kW) is the basic engineService Training 02/20002.0 MPI 5V (EU4)Top speed, km/h212205Acceleration 0-100 km/h, s9.910.2Max. power output96 KW (130 bhp) at 5700/minMax. torque195 Nm at 3300/min5-speed, FWDmultitronic, FWDConsumption acc. to 99/100/EC, l/100 km- urban11.4-11.610.9-11.0- extra-ur

7、ban5.9-6.16.2-6.3- total7.9-8.17.9-8.0CO2 emissions190-194190-192Service Training 02/20003.0 MPI 5V ( EU4)Top speed, km/h245238Acceleration 0-100km/h, s6.96.9Max. power output, kW (bhp)162 (220) at 6300/minMax. torque300 Nm at 3200/min5-speed, FWDmultitronic, FWDConsumption acc. to 99/100/EC, l/100

8、km- urban13.7-13.913.6-13.7- extra-urban7.1-7.37.0-7.1- total9.5-9.79.4-9.5CO2 emissions228-233226-228Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Servic

9、e Training 02/2000Service Training 02/2000Service Training 02/2000长进气道长进气道发动机在低转速时，空气经过长的进气道，使气缸充气最佳，且扭矩增大。短进气道短进气道发动机在高转速时，空气流经短进气道，可提高效率。真空单元进气道2.2新技术2.2.1可变进气道Service Training 02/20001 - 油封油封 更换 注意安装位置2 - 10 Nm3 - 10 Nm4 - O 型环型环 用于喷油阀 更换5 - 燃油分配管燃油分配管 带喷油阀6 - 10 Nm7 - 10 Nm8 - 上部冷却液管上部冷却液管9 - 10

10、 Nm10 - O型环型环 用于上部冷却液管用于上部冷却液管 更换更换11 - 进气管进气管 检查转换功能:12 - 20 Nm13 - Sttze 用于进气歧管用于进气歧管14 - 25 NmService Training 02/20001 - 真空控制单元真空控制单元2 - 压力弹簧压力弹簧3 - 转换辊转换辊4 - 进气歧管进气歧管5 - 单向阀单向阀安装位置 蓝色一侧朝Y件6 - Y-件件7 - 进气歧管转换阀进气歧管转换阀-N1568 - 10 Nm9 - 固定板固定板10 - 橡胶套橡胶套11 - 隔套隔套12 - 垫圈垫圈 锥面朝进气歧管13 - 油封油封损坏时，必须更换14

11、- 油封油封用于转换辊15 - 6 NmService Training 02/2000Service Training 02/2000Service Training 02/2000扭矩带进气歧管转换的发动机扭矩曲线固定式进气歧管的扭矩曲线扭矩功率Service Training 02/2000功率带进气歧管转换的功率曲线 固定式进气歧管的功率曲线扭矩功率Service Training 02/2000进气门开、关时刻：进气门开、关时刻：发动机转速低时，进气管内混合气随活塞运动，活塞运动慢 。进气门应提前关闭，以避免混合气回流进气管。发动机低速时，进气凸轮轴相位应提前调整。2.2.3可变进气

12、相位Service Training 02/2000进气门开、关时刻：进气门开、关时刻：发动机转速高时，进气管内气流快，活塞在向上运动过程中，混合气应可继续涌入气缸，为增加混合气量，进气门延迟关闭。Service Training 02/2000排气凸轮轴进气凸轮轴凸轮轴调节阀N205液压缸排气凸轮轴进气凸轮轴 凸轮轴调整器（与链条张紧器一体）Service Training 02/2000功率调整功率调整调整功率时，链条下部短，上部长，进气门延迟关闭。进气管内气流速高，气缸充气量足。因此高转速时，功率大。排气凸轮轴进气凸轮轴凸轮轴调整器Service Training 02/2000扭扭 矩

13、调整矩调整凸轮轴调整器向下拉长，于是链条上部变短，下部变长。因为排气凸轮轴被齿形带固定了，此时排气凸轮轴不能被转动，进气凸轮轴被转一个角度，进气门提前关闭。在这个位置时，在中、低转速，可获得大扭矩输出.Service Training 02/2000怠速怠速怠速时，进气门延迟关闭.扭矩调整扭矩调整转速在1000rpm以上时，进气门提 前关闭。左侧凸轮轴调整器向下，右侧调整器向上运动。功率调整功率调整 转速在3700rpm以上时，左侧凸轮轴调整器向上，右侧调整器向下运动，进气门延迟关闭。Service Training 02/2000Service Training 02/2000Service

14、 Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000Service Training 02/2000与进气管相连连接点曲轴箱Service Training