French inventor Henri Giffard (born 1825) invented the injector and the Giffard dirigible, an airship that was powered by a steam engine and weighed more than 400 pounds. The illustration pictured here dates to the 1870s and shows an injector. Injectors make pumps unnecessary. A steam injector, as invented by Giffard, is typically used to deliver cold water to a boiler against its own pressure by using its own live or exhaust steam and thereby replacing any mechanical pump. The letters designate the following: A (steam from boiler), B (needle valve), C (needle valve handle), D (steam and water combine), E (water feed), F (combining cone), G (delivery nozzle and cone), H (delivery chmaber and pipe), K (check vlave), L (overflow).
Légende

French inventor Henri Giffard (born 1825) invented the injector and the Giffard dirigible, an airship that was powered by a steam engine and weighed more than 400 pounds. The illustration pictured here dates to the 1870s and shows an injector. Injectors make pumps unnecessary. A steam injector, as invented by Giffard, is typically used to deliver cold water to a boiler against its own pressure by using its own live or exhaust steam and thereby replacing any mechanical pump. The letters designate the following: A (steam from boiler), B (needle valve), C (needle valve handle), D (steam and water combine), E (water feed), F (combining cone), G (delivery nozzle and cone), H (delivery chmaber and pipe), K (check vlave), L (overflow).

Crédit

Photo12/Universal Images Group/Ivy Close Images

Notre référence

UMG25A05_320

Licence

Droits gérés

Format disponible

41,5Mo (1,4Mo) / 43,2cm x 24,1cm / 5100 x 2843 (300dpi)

Mots clés

Henri Giffard Giffard injector steam engine injector Industrial Revolution steam engine French inventor dirigible 1850s 19th century

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