WORKING GAS CIRCULATION ENGINE

摘要

Engine (10) feeds a gas composed of oxygen, hydrogen as fuel and argon as working gas to combustion chamber (21). Upstream condenser unit (70) condenses steam contained in the exhaust gas from the combustion chamber by heat exchange thereof with atmospheric air to thereby obtain a primary condensed water and discharges the gas having the primary condensed water separated therefrom as a gas after primary condensed water separation. The primary condensed water is held in water storage tank (100). Downstream condenser unit (80) further condenses any steam contained in the gas after primary condensed water separation by the use of vaporization latent heat of condensed water held in the water storage tank (100) to thereby obtain a secondary condensed water. By discharging of the gas resulting from separation of the secondary condensed water from the gas after primary condensed water separation, there can be avoided any marked lowering of specific heat ratio of working gas.