🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsРусскийالعربية中文EntityQ690641· pop 9· linked from 61 articlesLenoir cyclebasis of the first commercially produced internal combustion engineAvailable in 9 languagesEspañolFrançaisРусскийPortuguêsالعربيةHungarianNederlandsUkrainianvia Wikidata sitelinks · CC0Connectionsregenerative coolingEntityMax PlanckEntityCategoriesBelgian inventionsThermodynamic cycles