Red marquis: /* Applications */

2010-09-22T05:04:31Z

Applications

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	===Road vehicles===		===Road vehicles===

	Many ~~[[motorcycle]]s~~ use air-cooling for the sake of reducing weight and complexity. Few current production automobiles have air-cooled engines (such as [[Tatra 815]]), but historically it was common for many high-volume vehicles. Examples of past air cooled road vehicles include:		Many motorcycles use air-cooling for the sake of reducing weight and complexity. Few current production automobiles have air-cooled engines (such as [[Tatra 815]]), but historically it was common for many high-volume vehicles. Examples of past air cooled road vehicles include:
	* [[Franklin (automobile)\|Franklin]]		* [[Franklin (automobile)\|Franklin]]
	* [[Porsche 356]] (1948-1965)		* [[Porsche 356]] (1948-1965)

Red marquis at 05:04, 22 September 2010

2010-09-22T05:04:11Z

New page

'''Air-cooled engines''' rely on the circulation of air directly over hot parts of the [[engine]] to cool them.

==Introduction==

Most modern [[internal combustion engine]]s are cooled by a closed circuit carrying liquid [[antifreeze (coolant)|coolant]] through channels in the engine block, where the coolant absorbs heat, to a heat exchanger or [[radiator]] where the coolant releases heat into the air. Thus, while they are ''ultimately'' cooled by air, because of the liquid-coolant circuit they are known as ''water-cooled''. In contrast, heat generated by an air-cooled engine is released directly into the air. Typically this is facilitated with metal fins covering the outside of the [[cylinder (engine)|cylinder]]s which increase the surface area that air can act on.

In all combustion engines, a great percentage of the heat generated (around 44%) escapes through the exhaust, not through either a liquid cooling system nor through the metal fins of an air-cooled engine (12%). About 8% of the heat energy finds its way into the [[Motor oil|oil]], which although primarily meant for lubrication, also plays a role in heat dissipation via a [[cooler (oil)|cooler]]. [http://www.avweb.com/news/maint/182883-1.html]

==Applications==

===Road vehicles===

Many [[motorcycle]]s use air-cooling for the sake of reducing weight and complexity. Few current production automobiles have air-cooled engines (such as [[Tatra 815]]), but historically it was common for many high-volume vehicles. Examples of past air cooled road vehicles include:
* [[Franklin (automobile)|Franklin]]
* [[Porsche 356]] (1948-1965)
* [[Porsche 914|VW-Porsche 914]] (1969-1976)
* [[Porsche 911]] (1964-1998)
* The [[Volkswagen Beetle]], [[Volkswagen Type 2|Type 2]], [[Volkswagen SP2|SP2]], [[Volkswagen Karmann Ghia|Karmann Ghia]], and [[Volkswagen Type 3|Type 3]] all utilized the [[Volkswagen air cooled engine|same air cooled engine]] (1938-2003) with various displacements.
* [[Volkswagen Type 4]] (1968-1974)
* [[Chevrolet Corvair]] (1960-1969)
* [[Citroën 2CV]] (1948-1990) (Featured a high pressure oil cooling system, and used a fan that was both axial and radial).
* [[Citroën GS]] and [[Citroen GSA|GSA]]
* [[Honda 1300]] (1969-1973)
* The East German [[Trabant]] (1957-1991)
* [[Tatra T77]] (1934-1938)
* [[Tatra T87]] (1936-1950)
* [[Tatra T97]] (1936-1939)
* [[Tatra T600 Tatraplan]] (1946-1952)
* [[Tatra T603]] (1955-1975)
* [[Tatra T613]] (1974-1996)
* [[Tatra T700]] (1996-1999)
* [[NSU Prinz]]
* [[Tatra (company)]] all wheel drive military trucks.

===Diesel engines===

Some small diesel engines, e.g. those made by [[Deutz AG]] and [[Lister Petter]] are air-cooled. Probably the only big Euro 5 truck air cooled engine (V8 320 kW power 2100 Nm torque one) is being produced by [[Tatra]].

==See also==
* [[Water cooling]]
* [[Engine cooling]]

[[Category:Engines]]

Air-cooled engine - Revision history

Red marquis: /* Applications */

Red marquis at 05:04, 22 September 2010