The new series also includes a piston design that makes digressive forces for added pitch and roll control. This helps with performance over rough terrains and on off-road surfaces.

新系列还包括一个活塞设计，它可降低阻力，增加间距和滚转控制，这有助于军用车辆在崎岖的地形和越野路面的表现。

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The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft.

发动机的一个工作循环分布在活塞的四个行程中，一个完整的工作循环曲轴需要转动两圈。

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The rings have joints (they are split) so that they can be expanded and slipped over the piston head and into the recessed grooves cut in the piston.

活塞环有接口（也就是有一缝隙），这样可以使端部扩张并滑入活塞上的凹槽中。

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