Gas mixture preparation system and method
AssigneeMaK Motoren GmbH & Co. KG
InventorHerbert Zeretzke
Life of this patent
Estimating the term…
Abstract
A system for preparing gas mixtures for combustion, reducing emissions during combustion and treating and purifying resultant exhaust gas mixtures includes an exhaust gas scrubbing and condensing heat exchanger which cleans, cools and dries an exhaust gas mixture, a source of clean water which supplies clean water for heating and humidifying, a steam producer for converting clean water to steam, a steam boiler for increasing the energy of the steam and the energy of a fluid compound gas. An exhaust gas turbine, a steam turbine, and a fluid compound gas turbine all mounted on a common shaft are operative to convert energy in the exhaust gas mixture, the steam, and the fluid compound gas to mechanical energy on the common shaft. The system is particularly suited for use with an internal combustion engine.
Claims48
A method of preparing gas mixtures of an internal combustion engine, comprising the steps of:
- delivering an exhaust gas mixture of combustion gases, air and moisture from a combustion chamber outlet of the internal combustion engine to an exhaust gas turbine, from the exhaust gas turbine to an exhaust gas boiler, and from the exhaust gas boiler to an exhaust gas scrubbing and condensing heat exchanger;
- delivering a steam from a steam producer to the exhaust gas boiler and increasing the energy level of the steam in the exhaust gas boiler by increasing the temperature and pressure of the steam;
- delivering said steam at said increased energy level from the exhaust gas boiler to a steam turbine and expanding the steam;
- delivering the expanded steam to the exhaust gas scrubbing and condensing heat exchanger containing water therein;
- combining the expanded steam with the exhaust gas mixture, condensing the expanded steam to water, aerating the water in the exhaust gas scrubbing and condensing heat exchanger, and cleaning the exhaust gas mixture by transferring the undesirable substances in the exhaust gas mixture to the aerated water.
A gas mixture preparation system for an internal combustion engine, comprising:
- an exhaust conduit being connected in fluid communication with a combustion chamber outlet of the internal combustion engine and passing an exhaust gas mixture from the combustion chamber outlet;
- an exhaust gas turbine being connected in fluid communication with the exhaust conduit and receiving said exhaust gas mixture from the combustion chamber outlet, said exhaust gas turbine rotating in response to receiving said exhaust gas mixture and passing said exhaust gas mixture therefrom;
- an exhaust gas boiler being connected in fluid communication with the exhaust gas turbine and receiving said exhaust gas mixture passed from the exhaust gas turbine;
- a steam producer being connected in fluid communication with said exhaust gas boiler and delivering a steam to the exhaust gas boiler, said exhaust gas boiler receiving said steam and increasing the energy level of the steam by increasing the temperature and pressure of the steam, said exhaust gas boiler passing the exhaust gas mixture;
- an exhaust gas scrubbing and condensing heat exchanger having a water aerator and containing a water therein is connected in fluid communication with the exhaust gas boiler, said exhaust gas scrubbing and condensing heat exchanger being adapted to receive the exhaust gas mixture being passed from the exhaust gas boiler;
- a steam turbine being connected in fluid communication with the exhaust gas boiler and the exhaust gas scrubbing and condensing heat exchanger, said steam turbine being connected by a common shaft to the exhaust gas turbine, said steam turbine and exhaust gas turbine being rotatable together, said steam turbine receiving said steam at said increased energy level and rotating in response thereto, said steam turbine expanding the steam and delivering the expanded steam to the exhaust gas scrubbing and condensing heat exchanger;
- said exhaust gas scrubbing and condensing heat exchanger combining the expanded steam with the exhaust gas mixture, condensing the expanded steam to water, aerating the water to produce aerated water, cleaning the exhaust gas mixture by transferring an undesirable substances in the exhaust gas mixture to the aerated water and drying the cleaned exhaust gas mixture by condensing.
Dependencies are inferred from the claim text.