Patent ID: 6089024
Filing Date: 2000-07-18
Classification: F01K,F02C,F05D,Y02T

Abstract:
A stem-augmented engine system, comprising:compressor means for receiving air and discharging a first compressed air flow mass;first direct contact steam generation combustor means composed of a compressed air intake chamber, a direct contact steam generation section for receiving feed water to generate steam, and a combustion chamber for receiving said first compressed air flow mass, fuel and said steam to generate first high pressure and temperature working fluid composed of combined steam and combustion products;first expansion means for receiving and expanding said first working fluid to generate a first power output for powering said compressor means and for discharging an expanded combustion product;second direct contact steam generation combustor means for receiving said product, fuel and feed water for generating second high pressure and temperature working fluid composed of combined steam and combustion product;second expansion means for receiving and expanding said second working fluid to generate a second power output and for discharging an exhaust product;heat recovery evaporator means for recovering heat from said exhaust product to generate a third high pressure working fluid from a combined organic mixture having a low boiling point;third expansion means for receiving and expanding said third working fluid to generate a third power output and discharging an expanded product;condensor means for receiving said expanded product and condensing the same to produce a liquid of said combined organic mixture;a first feed pump for feeding said liquid under pressure to said evaporator means;regenerator means connected between said evaporator means and said first feed pump for receiving said exhaust product whereby said liquid is preheated while the steam contained in said exhaust product is condensed to provide feed water so that dry exhaust product is rejected from said regenerator means to atmosphere; anda second feed pump for feeding said feed water under pressure to said first and second combustor means.