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1、Service Training 02/2000 Output kW 发动机发动机 4 inline 1.6l (75 kW) 4 inline 2.0l (96 kW) 4 inline 1.8T (110 kW) V6 3.0l (162 kW) V6 2.4l (121 kW) 4 inline 1.9l TDI (74 kW) 4 inline 1.9l TDI (96 kW) V6 2.5l TDI (132 kW) V6 2.5l TDI (114 kW) 汽油机 柴油机 汽油机 柴油机 Engines for model launch Engines (subsequent to
2、 start of production) Service Training 02/2000 2.0 MPI 5V Modifications 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 cooling Output96 kW (130 bhp) at 5,
3、700 rpm Torque195 Nm at 3,300 rpm 1.8T (110 kW): adopted from previous A4 mapped cooling Service Training 02/2000 3.0 MPI 5V Modifications 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 lad
4、der frame continuously variable camshaft (intake and exhaust) camshaft drive by toothed belt (no chain between the intake and exhaust camshafts) Output162 kW (220 bhp) at 6,300 rpm Torque300 Nm at 3,200 rpm 2.4 (121 kW): adopted from previous A4 Service Training 02/2000 1.9 TDI 2V PD Adopted from 1.
5、9 TDI PD A3 1.9 TDI (74 kW): 1.9 TDI PD is the basic engine Output96 kW (130 bhp) at 4,000 rpm Torque285 Nm at 1,750-2,500 rpm* *quattro 310 Nm at the same engine speed Service Training 02/2000 2.5 TDI 4V Adopted from A6 2.5TDI 132kW Only available as quattro Output132 kW (180 bhp) at 4,000 rpm Torq
6、ue370 Nm at 1,500-2,500 rpm 2.5 TDI (114 kW): The 2.5 TDI (132 kW) is the basic engine Service Training 02/2000 2.0 MPI 5V (EU4) Top speed, km/h212205 Acceleration 0-100 km/h, s9.910.2 Max. power output96 KW (130 bhp) at 5700/min Max. torque195 Nm at 3300/min 5-speed, FWDmultitronic, FWD Consumption
7、 acc. to 99/100/EC, l/100 km - urban11.4-11.610.9-11.0 - extra-urban5.9-6.16.2-6.3 - total7.9-8.17.9-8.0 CO2emissions190-194190-192 Contents Service Training 02/2000 3.0 MPI 5V ( EU4) Top speed, km/h245238 Acceleration 0-100km/h, s6.96.9 Max. power output, kW (bhp)162 (220) at 6300/min Max. torque30
8、0 Nm at 3200/min 5-speed, FWDmultitronic, FWD Consumption acc. to 99/100/EC, l/100 km - urban13.7-13.913.6-13.7 - extra-urban7.1-7.37.0-7.1 - total9.5-9.79.4-9.5 CO2emissions228-233226-228 Contents Service Training 02/2000 Contents Service Training 02/2000 Service Training 02/2000 Service Training 0
9、2/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service 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 Train
10、ing 02/2000 1 - 油封油封 ? 更换 ? 注意安装位置 2 - 10 Nm 3 - 10 Nm 4 - 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 Nm 7 - 10 Nm 8 - 上部冷却液管上部冷却液管 9 - 10 Nm 10 - 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 Nm 13 - Sttze ?用于进气歧管用于进气歧管 14 - 25 Nm Service Training 02/2000 1 - 真空控制单元真空控制单元 2 - 压力弹
11、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- N156 8 -10 Nm 9 -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 - 油封油封 ?用于转换辊 15 - 6 Nm Service Training 02/2000 Service Training 02/2000 Service 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
12、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。
13、 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 矩调整扭 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
14、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 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02
15、/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 与进气 管相连 连接点 曲轴箱 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000 Service Training 02/2000