汽车专业英语读译教程 作者 宋进桂_ 13-U8TA.ppt

UNIT 8 CLUTCHES, MANUAL TRANSMISSIONS AND DRIVE LINETEXT AClutches and Manual Transmissions UNIT 7 CLUTCHES, MANUAL TRANSMISSIONS AND DRIVE LINETEXT AClutches and Manual Transmissions? Clutches? Manual Transmission (M/T) 本次课学习目标 掌握离合器和手动变速器的有关英文专业词汇 能够较好地用已知翻译技巧进行课文翻译 具有较高的阅读速度 NEW WORDS end play 轴向间隙 cluster gear 齿轮组，塔齿轮 thrust washer 止推垫片 synchronizing mechanism 同步机构 synchronized gear 同步器，同步机构 Flywheel In addition to providing a base for the starter ring gear, the flywheel forms the foundation on which the other clutch parts are attached. The flywheel used with manual transmissions is thick to enable it to absorb a large amount of heat generated by clutch operation. The clutch side is machined smooth to provide a friction surface. Holes are drilled into the flywheel to provide a means of mounting the clutch assembly. A hole is usually drilled directly into the rear of the crankshaft. This hole allows a bearing to be installed in the center of the flywheel. The bearing in the center of the flywheel will act as a support for the outboard end of the transmission input shaft. It is referred to as a pilot bearing. The pilot bearing may be either a ball bearing or a bronze bushing. Dual Mass Flywheel A dual mass flywheel is sometimes used with diesel engines. To help absorb engine power stroke pulsations, springs mounted inside the flywheel act as a shock absorbing unit when the flywheel sections partially compress, smoothing out the power flow. They also help to reduce stress on the clutch and transmission parts. Clutch Disc The clutch disc is round and constructed of thin, high quality steel with a splined (grooved) hub placed in the center. The hub splines engage splines on the transmission input shaft. The clutch disc can move back and forth on the shaft, but when the disc is turned, the shaft must turn also. Both sides of its outer edge are covered with friction material. It is often