Usually such an engine, the valve is located at the top of the engine, the so-called OHV(OverHeadValve, overhead valve) type engine.
欧洲新工厂用于生产发动机制动器和气门驱动系统,将是公司在美国和中国的制造业务的补充.
New European plant for producing engine brake and valve actuation systems will add to the company's manufacturing operations in the USA and China.
气缸盖每个气缸有两个气门,一个凸轮轴具有连续可变的气门正时(正时由链驱动)。
The cylinder head has two valves per cylinder and a single camshaft with continuous variable valve timing(the timing is chain-driven).
为了让系统正常运转,他们进行了无数次尝试:调节气门和压力、气体对空气的比例、燃烧温度、起始机制。
They went through countless iterations to get the system working:adjusting valves and pressures, the gas-to-air ratios, the combustion temperature, the starting mechanism.
另一方面,如果凸轮持续令气门打开较长时间,像赛车的情况,在较低转速下便会出现问题。
On the other hand, if the camshaft keeps the valves open for longer periods of time, as with a racing cam, problems start to occur at the lower engine speeds.
Similarly, car manufacturers worldwide continue to require direct TPMS systems that meet their exacting specifications for performance,high-speed valve tolerances, and more.
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