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词汇 Four cycle engine
分类 英语词汇 英语翻译词典
释义

Four cycle engine

中文百科

四冲程循环 Four-stroke engine

(重定向自Four cycle engine)

四行程循环Four-stroke cycle),现代汽车以及工业用途的(汽车、卡车、发电机)内燃机中大多都是四冲程循环的。此技术由德国科学家尼古拉斯·奥托(Nicolaus Otto)于1876年发明,所以又叫奥托循环(Otto cycle)。转子引擎有四个类似的周期,不过没有用到冲程。一个周期由四个冲程构成,亦即四个活塞在气缸中单方向的直线运动:

四冲程发动机比两冲程的效率要高很多。不过需要相当多的可移动零件以及更高的制造技术。

英语百科

Four-stroke engine 四冲程循环

(重定向自Four cycle engine)
Four-stroke cycle used in gasoline/petrol engines.
1 = Intake, 2 = Compression, 3 = Power, 4 = Exhaust. The right blue side is the intake port and the left brown side is the exhaust port. The cylinder wall is a thin sleeve surrounding the piston head which creates a space for the combustion of fuel and the genesis of mechanical energy.
An Otto Engine from 1920's US Manufacture
The Atkinson Gas Cycle
Audi Diesel R15 at Le Mans

A four-stroke engine (also known as four cycle) is an internal combustion (IC) engine in which the piston completes four separate strokes while turning a crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed:

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