Dry lubrication

Japanese: 乾式潤滑 - かんしきじゅんかつ
Dry lubrication

…Most oil pumps use a forced oil supply system, with two main oil paths: one that runs from the oil pump through the main oil pipe to the crankshaft bearings and cylinder walls before returning to the oil sump, and the other that runs from the main oil pipe to the valve drive mechanism and various auxiliary machinery before returning to the oil sump. In automobile and construction engines, the bottom of the engine is the oil tank (wet lubrication), while in aircraft engines and large diesel engines, the oil is returned to an oil tank outside the engine by a drain pump (dry lubrication). A wire mesh oil strainer is attached to the suction side of the oil pump, and an oil filter is attached to the discharge side to prevent foreign matter from entering. …

*Some of the terminology that refers to "dry lubrication" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ほとんどがオイルポンプによる強制給油方式で,おもな油の通路は,油ポンプから主油管を経てクランク系軸受,シリンダー壁に至り油だめにもどるものと,主油管から弁駆動機構および各種補機を回って油だめにもどるものの二つである。自動車用・建設用機関などは機関の底が油タンクとなっており(湿式潤滑),航空用機関や大型ディーゼルエンジンでは油を排油ポンプにより機関外部の油タンクにもどしている(乾式潤滑)。オイルポンプの吸入側には金網製のオイルストレーナーを,吐出側にはオイルフィルターを取り付け,異物の混入を防止している。…

※「乾式潤滑」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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