单缸，四冲程，强制风冷发动机。
论述了风冷发动机冷却风扇的试验法和用无因次特性系数法制取风扇特性曲线的方法。
This paper describes the methods of fan testing and making fan property curve by dimensionless characteristic coefficient for the cooling fan of air-cooled engines.
本文对车用风冷发动机汽缸盖的非稳态温度进行了实测，分析了启动、突加和突减三种过渡工况下汽缸盖温度的变化规律。
This paper measured the non steady state temperature field of cylinder head in an air cooled engine. It analysed the temperature variation under transient operating conditions of engine.
那个时代的甲壳虫有硬顶式和敞篷式两种车身造型，不过动力系统却没得选，只有一款风冷后驱发动机，搭配三速手动变速箱。
Beetles of that era came in two body styles — hard-top and cabriolet — and with one powertrain option: air-cooled, rear-engine, three-speed manual transmission.
飞机由一台360马力风冷、四冲程汽油活塞发动机提供动力。
The aircraft is powered by a 360hp air-cooled, four-stroke, petrol (gasoline) piston engine.
主营：各种品牌水冷、风冷摩托车发动机零部件。
Main: various brands of water-cooled, air-cooled motorcycle engine parts.
单缸，四冲程，风冷，直喷式，柴油发动机。
Single cylinder, 4-stroke, air-cooled, direct-injection, diesel engine.
目前，大多数摩托车发动机均采用传统的自然风冷却系统。
At present, most of the motorcycle engines use the traditional natural air cooling systems which have simple structures but unideal cooling effect.
强制风冷系统是坐式摩托车的重要组成部分，它起着散热冷却、保证发动机温度正常的作用。
The forced air cooling is an important component of motorcycle, playing a key role in radiating heat, cooling and as well as keeping the normal temperature of engine.
强制风冷系统是坐式摩托车的重要组成部分，它起着散热冷却、保证发动机温度正常的作用。
The forced air cooling is an important component of motorcycle, playing a key role in radiating heat, cooling and as well as keeping the normal temperature of engine.
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