《Unit 04 The Valve System》.pptVIP

(3)??adapts to engines of varied cylinder counts. With all of the improved efficiencies and consumer benefits, auto manufacturers are eager to get their first EVC systems on the road. The EVC system is targeted to operate in temperatures up to 125, while the actuator is targeted to run up to 600 r/min. The actuator can be controlled in a centralized system with a high-speed multiplex bus (up to 10Mbps) or in a distributed system with a nominal speed bus. Unit 4 The Valve System EVC systems must be compact in size, specifically the actuators that must be small enough to fit in the engine space. A vehicle that uses a 42V system is ideal for EVC because it requires high voltage to control the value actuators, and EVC is targeted for V8 and V12 engines[7]. The EVC system is also highly flexible, allowing adaptability for a number of cylinder engines. Unit 4 The Valve System NEW WORDS coordinate [kEu5C:dinit] vt. 协调 respectively [ri5spektivli] adj. 分别的，各自的 guide [^aid] n. 导管 tappet [5tApit] n. 挺杆 cotter [5kRtE(r)] n. 锁销，锁片 lobe [lEub] n. 凸起 Unit 4 The Valve System spot [spCt] n. 点，位置 stem [stem] n. 杆 dual [5dju(:)El] adj. 双的 static [5stAtik] adj. 静态的，静力的 leverage [5li:vEridV] n. 杠杆作用 kinetic [kai5netik] adj. (运)动的，动力(学)的 seesaw [5si:sC:] n. 跷跷板，杠杆 Unit 4 The Valve System radius [5reidjEs] n. 半径，范围 flank [ flANk] n. 侧面 fiberglass [5faibE^lB:s] n. 玻璃纤维 strand [strAnd] n. 绳，线，绞合 slot [slCt] n. 槽 mesh [meF] v. 相啮合 neoprene [5ni(:)Eupri:n] n. 氯丁(二烯)橡胶 Unit 4 The Valve System PHRASES