翻訳と辞書
Words near each other
・ Oil City, Kentucky
・ Oil City, Louisiana
・ Oil City, Maryland
・ Oil City, Mississippi
・ Oil City, Oklahoma
・ Oil City, Pennsylvania
・ Oil City, Texas
・ Oil City, Washington
・ Oil City, Wisconsin
・ Oil cleansing method
・ Oil clique
・ Oil companies in Kenya
・ Oil Companies International Marine Forum
・ Oil Company Residences
・ Oil content meter
Oil cooling
・ Oil Creek
・ Oil Creek (Allegheny River)
・ Oil Creek (Ohio River)
・ Oil Creek (San Mateo County, California)
・ Oil Creek and Allegheny River Railway
・ Oil Creek and Titusville Railroad
・ Oil Creek Formation
・ Oil Creek Library District
・ Oil Creek Railroad
・ Oil Creek State Park
・ Oil Creek Township, Crawford County, Pennsylvania
・ Oil Creek Township, Venango County, Pennsylvania
・ Oil crisis
・ Oil depletion


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Oil cooling : ウィキペディア英語版
Oil cooling

Oil cooling is the use of engine oil as a coolant, typically to remove surplus heat from an internal combustion engine. The hot engine transfers heat to the oil which then usually passes through a heat-exchanger, typically a type of radiator known as an oil cooler. The cooled oil flows back into the hot object to cool it continuously.
==Usage==
Oil cooling is commonly used to cool high-performance motorcycle engines that are not liquid-cooled. Typically, the cylinder barrel remains air-cooled in the traditional motorcycle fashion, but the cylinder head benefits from additional cooling. As there is already an oil circulation system available for lubrication, this oil is also piped to the cylinder head and used as a liquid coolant. Compared to an oil system used solely for lubrication, oil cooling requires additional oil capacity, a greater flow rate through the oil pump, and an oil cooler (or a larger cooler than normal).
If air-cooling proves sufficient for much of the running time (such as for an aero-engine in flight, or a motorcycle in motion), then oil cooling is an ideal way to cope with those times when extra cooling is needed (such as an aero-engine taxying before take-off, or a motorcycle in a city traffic jam). But if the engine is a racing engine that is always producing huge amounts of heat, water or liquid cooling may be preferable.
Air-cooled aviation engines may be subject to "shock cooling" when descending from cruising altitude prior to landing. During descent, very little power is needed, so the engine is throttled back and thereby develops much less heat than when maintaining altitude. While descending, the plane's airspeed rises, substantially increasing the rate of air-cooling the engine. These factors may cause the cylinder head to crack; but the adoption of oil-cooled cylinder heads significantly reduces or cancels the problem as the heads are now "oil-warmed".
In the 1980s, Suzuki used the "SACS" oil-cooling system on the GSX-R sportbikes, but later switched to water-cooling.〔http://www.visordown.com/motorcycle-top-10s/the-10-best-motorcycle-engines--ever/9854-8.html〕
Splash lubrication is a rudimentary form of oil cooling. Some slow-turning early engines would have a "splashing spoon" beneath the big end of the connecting rod. This spoon would dip into sump oil and would hurl oil about, in the hope of cooling and lubricating the underside of the piston.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Oil cooling」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.