A vapor generating system in which a furnace section is provided that is formed by four upright walls. A plurality of openings are formed in one of the walls, and a plurality of gasifiers extend adjacent said one wall and surround the openings so that the respective interiors of the gasifiers communicate...http://www.google.fr/patents/US4430094?utm_source=gb-gplus-shareBrevet US4430094 - Vapor generating system having a plurality of integrally formed gasifiers extending to one side of an upright wall of the generator
Vapor generating system having a plurality of integrally formed gasifiers ...
