IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0804590
(2010-07-26)
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등록번호 |
US-8151553
(2012-04-10)
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발명자
/ 주소 |
|
출원인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
7 |
초록
▼
An internal-combustion engine receives no air from outside atmosphere and it discharges no gas into outside atmosphere. The engine receives fuel, oxygen and recycled combustion gas and its exhaust consists mostly of carbon dioxide and water vapor. Most of the gas exhausted from the engine is recycle
An internal-combustion engine receives no air from outside atmosphere and it discharges no gas into outside atmosphere. The engine receives fuel, oxygen and recycled combustion gas and its exhaust consists mostly of carbon dioxide and water vapor. Most of the gas exhausted from the engine is recycled back into the engine intake, and the remaining gas is cooled and condensed into liquid carbon dioxide and water. Discharge of greenhouse gas into environment and emission of other harmful air pollutants are eliminated.
대표청구항
▼
1. A method for operating an internal-combustion engine system, said method comprising the steps of: (a) providing an internal-combustion engine that uses recycled combustion gas and oxygen instead of air, said engine including at least one cylinder, a cylinder chamber within said at least one cylin
1. A method for operating an internal-combustion engine system, said method comprising the steps of: (a) providing an internal-combustion engine that uses recycled combustion gas and oxygen instead of air, said engine including at least one cylinder, a cylinder chamber within said at least one cylinder and a piston that can reciprocate in said at least one cylinder, said engine receiving recycled combustion gas, oxygen and fuel and exhausting hot combustion gas containing carbon dioxide and water vapor,(b) providing a gas-flow-splitting means for a controllable splitting of flow of said hot combustion gas into two flows: a flow of recycled combustion gas and a flow of excess combustion gas,(c) providing a gas-flow-controlling means for controlling said splitting of said hot combustion gas and for controlling the pressure of said recycled combustion gas,(d) providing a gas-exhaust means for connecting said engine to said gas-splitting means and for discharging hot combustion gas from said engine into said gas-splitting means,(e) providing a gas-cooling means for receiving, cooling and discharge of said recycled combustion gas,(f) providing a gas-intake means for connecting said engine to said gas-cooling means and for receiving cooled recycled combustion gas from said gas-cooling means into said engine,(g) providing a source of oxygen and an oxygen-delivery means for adding oxygen to said recycled combustion gas,(h) providing a source of fuel and a fuel-delivery means for adding fuel to said recycled combustion gas,(i) providing a gas-condensation means for receiving said excess combustion gas and for cooling and condensing water vapor and carbon-dioxide gas contained in said excess combustion gas,(j) providing a water-storage means for collecting and storing water condensed in said gas-condensation means,(k) providing a carbon-dioxide-storage means for collecting and storing liquid carbon dioxide condensed in said gas-condensation means,(l) providing a control means for controlling the operation of said internal-combustion engine system in response to operator's demands and in accordance with a control program incorporated in said control means,(m) operating said engine in a gas-recycling mode by repeatedly performing an engine cycle that includes the steps of: (1) cooling said recycled combustion gas in said gas-cooling means, whereby said hot recycled combustion gas turns into cooled recycled combustion gas,(2) receiving said cooled recycled combustion gas from said gas-cooling means into said engine,(3) adding oxygen and fuel to said cooled recycled combustion gas, whereby a combustible mixture forms,(4) using said combustible mixture to perform an internal-combustion cycle in said engine, said internal-combustion cycle including gas compression, combustion and gas expansion, whereby said combustible mixture turns into a hot combustion gas that performs work on said piston,(5) discharging said hot combustion gas from said engine into said gas-flow-splitting means,(6) splitting the flow of said hot combustion gas into two flows: a flow of recycled combustion gas and a flow of excess combustion gas, and(7) receiving said recycled combustion gas from said gas-flow-splitting means into said gas-cooling means,(n) receiving said excess combustion gas from said gas-flow-splitting means into said gas-condensation means,(o) condensing water vapor contained in said excess combustion gas and collecting water in said water-storage means,(p) condensing carbon-dioxide gas contained in said excess combustion gas and collecting liquid carbon dioxide in said carbon-dioxide-storage means,(q) using said control means for control of operation of said internal-combustion engine system, and(r) periodically removing water collected in said water-storage means and carbon dioxide collected in said liquid-carbon-dioxide-storage means, whereby said engine operates without receiving any air from outside atmosphere and without discharging any gas into outside atmosphere, and whereby no greenhouse gas and no other harmful pollutants are released into outside atmosphere during said engine operation. 2. The method of claim 1 wherein: (a) said gas-flow-controlling means includes a controllably-variable restriction to the flow of said excess combustion gas, and(b) said control of operation of said internal-combustion engine includes controlling said controllably-variable restriction, whereby pressure of said recycled combustion gas is controlled, whereby pressure of said cooled recycled combustion gas is controlled, whereby the mass of said recycled combustion gas is controlled, and whereby said engine can be controllably supercharged. 3. The method of claim 1 wherein: (a) said gas-cooling means includes a flow of cooling fluid through said gas-cooling means and a means for control of operation of said gas-cooling means by controlling said flow of cooling fluid, and(b) said control of operation of said gas-cooling means includes controlling said flow of cooling fluid, whereby amount of heat taken out from said recycled combustion gas is controlled, whereby temperature of said recycled combustion gas is controlled, and whereby amount of water vapor condensed in said gas-cooling means can be controlled. 4. The method of claim 1 further including the steps of (a) providing a means for flowing excess oxygen from said gas-condensation means into said oxygen-delivery means, and(b) flowing excess oxygen from said gas-condensation means into said oxygen-delivery means. 5. The method of claim 1 further including the steps of: (a) providing a means for flowing residual carbon-dioxide gas from said gas-condensation means into said gas-intake means, and(b) flowing said residual carbon-dioxide gas from said gas-condensation means into said gas-intake means. 6. The method of claim 1 further including the steps of: (a) providing a means for collecting water condensed in said gas-cooling means,(b) providing a heat-exchange means for heating and boiling said water condensed in said gas-cooling means, and(c) using the heat of said recycled combustion gas for heating and boiling said water condensed in said gas-cooling means in said heat-exchange means, whereby said recycled combustion gas is cooled and a high-pressure steam is generated in said heat-exchange means. 7. The method of claim 6 further including the steps of: (a) providing a means for adding said water condensed in said gas-cooling means to gas in said cylinder chamber, and(b) adding a charge of said water condensed in said gas-cooling means to gas in said cylinder chamber during said gas compression, whereby work of said gas compression is reduced and said engine fuel efficiency is improved. 8. The method of claim 6 further including the steps of: (a) providing means for adding said steam to gas in said cylinder chamber, and(b) adding a charge of said steam to gas in said cylinder chamber during said gas expansion, whereby work of said gas expansion is increased and said engine fuel efficiency is improved. 9. The method of claim 1 wherein said source of oxygen is a source of liquid oxygen and wherein the step of condensing carbon-dioxide gas further includes the step of using said liquid oxygen to cool said excess combustion gas in said gas-condensation means, whereby said liquid oxygen evaporates and said carbon-dioxide gas contained in said excess combustion gas is condensed into liquid carbon dioxide. 10. The method of claim 1 further including the step of converting said carbon dioxide into solid carbon dioxide, whereby a smaller volume of said carbon-dioxide-storage means is needed. 11. An internal-combustion-engine system that discharges no gas into outside atmosphere, said system comprising: (a) a reciprocating-piston-type internal-combustion engine that uses recycled combustion gas and oxygen instead of air for its operation, said engine receiving fuel, oxygen and recycled combustion gas and exhausting combustion gas containing mostly carbon dioxide and water vapor,(b) a gas-flow-splitting means for receiving said combustion gas and for controllable splitting of flow of said combustion gas into two flows: a flow of said recycled gas and a flow of excess gas,(c) a gas-cooling means for receiving, cooling and discharge of said recycled combustion gas,(d) a gas-condensation means for receiving said excess combustion gas and for cooling and condensing water vapor and carbon-dioxide gas contained in said excess combustion gas,(e) a liquid-carbon-dioxide-storage means for collecting and storing liquid carbon dioxide condensed in said gas-condensation means, and(f) a source of fuel, a source of oxygen and a means for adding fuel and oxygen to said recycled combustion gas. 12. The system of claim 11 wherein said gas-flow-splitting means includes a means for controlling pressure of said recycled combustion gas. 13. The system of claim 12 wherein said means for controlling pressure of said recycled combustion gas includes a controllably-variable restriction to the flow of said excess combustion gas. 14. The system of claim 11 wherein said gas-cooling means further includes a means for controlling the temperature of gas received into said engine. 15. The system of claim 11 further comprising a means for flowing excess oxygen from said gas-condensing means back into said engine. 16. The system of claim 11 further comprising a means for flowing residual carbon-dioxide gas from said gas-condensing means back into said engine. 17. The system of claim 11 further comprising a means for condensing water vapor contained in said recycled combustion gas into liquid water and for collecting said water in a water collector. 18. The system of claim 17 further comprising a means for injecting said water into said engine during said engine operation. 19. The system of claim 17 further comprising a means for using heat of said recycled gas to convert said water into steam and for injecting said steam into said engine during said engine operation. 20. A method for operating a piston-type internal-combustion engine that inducts no air from outside atmosphere and discharges no gas into outside atmosphere, said method including operating said engine in a gas-recycling mode wherein said engine receives fuel, oxygen and recycled combustion gas and it exhausts combustion gas containing mostly water vapor and carbon-dioxide gas, one part of said combustion gas being used as said recycled combustion gas, and another part of said combustion gas being converted into water and liquid carbon dioxide that are separately stored until removal at a later time.
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