The research and analysis of the in-cylinder flow fields in a four valve engine under the motored condition have been carried out.

在倒拖工况下对四气门发动机气缸内流场进行了实验研究和分析。

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Some experimented results gained in a 5-valve engine prove that this new injection mode can reduce fuel consumption by 17% than that of the conventional one, and improve exhaust emission performance.

在一台五气门汽油机上实验证实这种新喷油方式能够节油17%左右，并明显改善排放性能。

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In these extreme engine environments, traditional valve materials can't stand up to the punishment.

在这些极端恶劣的发动机环境中，传统气门材料无法承受这种“酷刑”。

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It's an overhead valve engine with a single camshaft that uses push rods to open and close the 16 valves.

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Under the Hood: 3.6 liter V6 24 Valve VVT Engine.

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The 4.3-liter, four-cam, 32-valve V8 engine can race from zero to 60 mph in a respectable 5.9 seconds (the same as the V8 7-Series), throwing out 290 horsepower and 320 pound-feet of torque at 3, 400 rpm.

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