In 1924 he developed the first light-alloy cylinder head for the R 27: its overhead valve train is both oil- and dust-proof.
1924年，他为R 27开发了第一台轻合金发动机，其顶部设置的气门具有防油和防尘功能。
Double overhead camshaft, chain driven with automatic tensioner, four valves per cylinder, maintenance free hydraulic lifters, single coil valve springs
顶置凸轮轴，链式自动张紧伦驱动，每缸4伐自由液压升级维护，单阀门弹簧
Under this fluorescent sheet metal lies a four-cylinder, 1.1-liter gasoline engine (a 12-valve, three-pot 800cc engine is available) that breathes through 16 valves with double overhead camshafts and is fed by an electronic multipoint fuel injection system—which sounds advanced enough, right?
在它亮莹莹的钢板下是一台四缸1.1L汽油引擎（另有一款三缸12气门0.8L引擎），16气门进排气，双顶置凸轮轴，拥有电控多点燃油喷射系统—这听起来够先进的，对吧？
The 4.0-liter V-6 is a single overhead camshaft, 24-valve engine that utilizes a semi-permanent mold cast aluminum block with iron liners and cast aluminum cylinder heads.
4.0升V - 6是一个单顶置凸轮轴，24气门发动机，采用了半永久模铸造铁衬里和铸铝缸盖铝块。
In this paper the designing methods and alternative eonstructional versions of cylinder beads for four-stroke overhead valve direct injection diesel engines are presented.
介绍了四冲程直接喷射式柴油机顶置气门缸盖的设计方法及各种可供选择的设计方案。
This increased power and torque is achieved through the use of aluminum cross-flow cylinder heads, dual overhead cams and a four-valve-per-cylinder design.
能有如此的改善是因为采用了全铝的cross-flow汽缸头，双顶置凸轮和每缸四气门的设计。