Patent ID: 6089020
Filing Date: 2000-07-18
Classification: F01K,F01N,F02B,F02F,F02G,F28F,Y02E,Y02T,Y10S

Abstract:
A heat recovering apparatus for a cogeneration system with an engine comprising:a turbocharger driven by an exhaust gas from an engine and provided in an exhaust gas passage,an energy recovering turbine provided in the portion of said exhaust gas passage which is on the downstream side of said turbocharger and having a first generator, anda heat exchanger provided in the portion of said exhaust gas passage which is on the downstream side of said energy recovering turbine,said energy recovering turbine being provided with a gas turbine driven by an exhaust gas discharged from said turbocharger, and a steam turbine driven by steam generated in said heat exchanger,said heat exchanger comprising a casing joined to said exhaust gas passage, oxidation resisting ceramic pipes, through which water and steam flow, provided in said casing, and oxidation resisting ceramic porous members, through which said exhaust gas can flow, provided in the portions of the interior of said casing which are on the outer sides of said ceramic pipes so as to unitarily combined with said ceramic pipes,wherein at least one of lattices and porous materials is provided in said ceramic pipes in said heat exchanger.