🌐EnglishEnglishFrançaisItalianoNederlandsPortuguêsالعربية中文日本語EntityQ3866370· pop 7· linked from 56 articlesStoddard engineheat engineWikidata factsImageStoddardEnginePatentDrawing1919.jpgvia Wikidata · CC0Available in 6 languagesPortuguêsItalianoالعربيةNederlandsTamilvia Wikidata sitelinks · CC0Connectionsheat exchangerEntityregenerative coolingEntityCategories1919 introductions1933 introductionsCooling technologyCryogenicsHeat pumpsHot air enginesPiston enginesThermodynamic cycles