汽车构造双语教学ppt课件--配气机构.ppt

* * * * * * * * * * * * * * * * 汽车课件下载 第3章 配气机构 3．1 概述 3．2 配气机构的构造 （valve gear ） 凸轮轴 ? camshaft 气门 ? valve 气门挺杆 ?valve tappet 气门导管 ?valve guide 摇臂 ?rocker arm 推杆 ?push-rod 1.spacer 2.Valve guide 3.camshaft 4.valve-spring retainer 5.valve key 6.valve-spring 7.valve guide 8.valve stem 9.valve head 10.valve seat insert 11.rocker arm 1．齿轮驱动 凸轮轴正时记号 cam shaft timing gear mark 曲轴正时齿轮记号 Crankshaft timing gear mark 喷油泵正时齿轮 injection pump timing gear mark 曲轴正时齿轮 Crankshaft timing gear 凸轮轴正时齿轮 cam shaft timing gear 2. 惰轮 idle wheel 惰轮 idle wheel 机油泵正时齿轮 ioil pump timing gear mark intake valve exhaust valve spark plug intake valve close intake valve open intake valve open intake valve close exhaust valve open exhaust valve close exhaust valve close exhaust valve open top dead center top dead center lower dead center lower dead center 配气相位（valve timing） Valve Cotter) inner valve spring outer valve spring alve guide stem guide Valve valve-spring retainer Valve valve stem valve head valve stem Valve spring valve-spring retainer valve key lockpin valve guide Cylinder Head) valve guide Cylinder Head) check ring valve guide Papilionaceous spring 钢球 valve-spring knighthead carapace friction ball head lower bar body of rod push rod tappet barrel tube pipe truckle camshaft high-handed oily Cylinder oil lead Quantity oilhole Taper oilhole ball valve low pressure hydraulic fluid chamber tappet Plunger compensate spring cylinder valve stem hydraulic cylinder Plunger soldering seam hydraulic pressure present valve locating ring bolt camshaft bearing seat First journal timing gear Arrestment push chip cam shaft journal timing gear room arrestment screw cam shaft journal timing gear 气门定时和升程可变的可变进气系统(VTEC) cam Principal rocker arm timing plate middle rocker arm Su