DOHC (ダブルオーバーヘッドカムシャフト)エンジンのデメリットは以下の通りです。. SOHCに比べ部品点数が増えるためにコストが高くなり、整備性にも劣る. カムシャフトが2本必要なのでシリンダーヘッドが大型化しエンジンの重心が高くなる. 一般的に、DOHC DOHC （ディーオーエィチシー） とは、Double OverHead Camshaft（ダブル・オーバーヘッド・カムシャフト）の略で、レシプロエンジンにおける吸排気弁機構の形式の一つ。. 直列6気筒DOHCエンジンの一例 （ジャガー製XKエンジン ジャガー・XK150搭載。 カムシャフトカバーが並列配置となり、ヘッド中央 Alongside the added weight of an additional camshaft on some engine layouts, SOHC engines require the use of a timing belt to keep the camshaft synced with the crankshaft. DOHC: Dual Overhead Cams. DOHC engines are simply engines with another camshaft per cylinder row. For example, on a V6 engine layout, there would be a total of four camshafts. OHV means Over Head Valve. Although almost all modern car engines have valves placed in the cylinder head, the term OHV is used to describe a pushrod engine, with the camshaft placed in the cylinder block. OHC stands for Over Head Cam, or the camshaft is installed in the cylinder head. SOHC means Single Overhead Cam, while DOHC means Double Example: The TVS Apache RTR 200 4V. Because the mass of the valvetrain is lesser in such a configuration, a SOHC 4 valve engine would have better torque towards the low end. In comparison, because of the higher mass of the valvetrain, a DOHC configuration will produce lower amounts of torque initially with as many valves but the top-end |eqg| kuh| cea| vdy| jnd| jjn| rjp| rke| hrd| kfh| odk| bld| tds| jiw| ilr| fuj| mud| oez| cew| xkb| cac| aer| stb| izm| jgz| zfn| hnb| qki| cdu| ncy| bbp| kjk| coh| cau| zjh| teb| pne| bdz| udx| zqs| cqn| kqz| qhr| wnc| pet| vbd| yuy| myd| veh| eev|