Minimizing alcohol use in high efficiency alcohol boosted gasoline engines
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-007/00
F02B-013/00
F02M-043/00
출원번호
US-0956782
(2013-08-01)
등록번호
US-8707938
(2014-04-29)
발명자
/ 주소
Bromberg, Leslie
Cohn, Daniel R.
출원인 / 주소
Ethanol Boosting Systems, LLC
대리인 / 주소
Nields, Lemack & Frame, LLC
인용정보
피인용 횟수 :
2인용 특허 :
102
초록▼
A number of systems and methods are disclosed which increase the replenishment interval for anti-knock fluid. This is especially important during activities which require a large amount of anti-knock fluid, such as towing. In some embodiments, the systems and methods are used to reduce anti-knock fl
A number of systems and methods are disclosed which increase the replenishment interval for anti-knock fluid. This is especially important during activities which require a large amount of anti-knock fluid, such as towing. In some embodiments, the systems and methods are used to reduce anti-knock fluid consumption. For example, changes to engine operation, such as rich operation, spark retarding, upspeeding, and variable valve timing, all serve to reduce the amount of anti-knock fluid required to eliminate knocking. In other embodiments, the composition of the anti-knock fluid is modified, such as by using a higher octane fluid, or through the addition of water to the anti-knock fluid. In other embodiments, the replenishment interval is increased through a larger anti-knock fluid storage capacity. In one embodiment, a three tank system is used where the third tank can be used to store gasoline or anti-knock fluid, depending on the driving conditions.
대표청구항▼
1. A spark ignition engine system, where a first fluid is introduced into said engine from a first source and a second fluid is introduced into said engine from a second source and wherein the ratio of said second fluid to said first fluid varies with engine torque so as to prevent knock, comprising
1. A spark ignition engine system, where a first fluid is introduced into said engine from a first source and a second fluid is introduced into said engine from a second source and wherein the ratio of said second fluid to said first fluid varies with engine torque so as to prevent knock, comprising: a controller configured to modify the operation of said engine so as to reduce an amount of said second fluid that would otherwise be used to prevent knock, based on a change in vehicular operating condition, wherein said change comprises prolonged use at high torque. 2. The spark ignition engine system of claim 1, wherein said change in vehicular operating condition is due to prolonged towing. 3. The spark ignition engine system of claim 1, wherein said modification comprises an increase in spark retard timing. 4. The spark ignition engine system of claim 1, wherein said modification comprises use of variable valve timing. 5. The spark ignition engine system of claim 1, wherein said first fluid is mixed with air prior to being introduced into said engine and said modification comprises a change in the ratio of said first fluid to air. 6. The spark ignition engine system of claim 1, wherein said modification comprises an increase in RPM. 7. The spark ignition engine system of claim 1, further comprising a transmission, wherein said controller instructs said transmission to upspeed. 8. The spark ignition engine system of claim 1, wherein said modification comprises charge stratification, wherein a non-uniform distribution of said second fluid is directly injected into said engine. 9. The spark ignition engine system of claim 1, wherein an operator provides input to said controller regarding said change to said vehicular operating condition thereby causing said controller to modify said operation of said engine. 10. The spark ignition engine system of claim 1, further comprising a knock sensor, wherein said knock sensor provides input to said controller to modify said operation of said engine. 11. The spark ignition engine system of claim 1, wherein said change in vehicular operating condition is determined based on the consumption rate of said second fluid. 12. The spark ignition engine system of claim 11, wherein said consumption rate is averaged over a predetermined time period. 13. The spark ignition engine system of claim 1, wherein said change in vehicular operating condition is determined based on the ratio of the consumption rate of said second fluid to the consumption rate of said first fluid. 14. The spark ignition engine system of claim 1, wherein said modification to said engine operation lowers the efficiency of said engine with respect to said first fluid. 15. The spark ignition engine system of claim 1, where said second fluid comprises alcohol. 16. The spark ignition engine system of claim 1, where said second fluid comprises water. 17. The spark ignition engine system of claim 1, where said first fluid comprises gasoline. 18. The spark ignition engine system of claim 1, where said first fluid comprises natural gas. 19. The spark ignition engine system of claim 1, wherein said modification comprises increased spark retard and upspeeding. 20. The spark ignition engine system of claim 1, wherein said second fluid comprises alcohol and said modification comprises direct injection of water with said second fluid. 21. The spark ignition engine system of claim 1, wherein said first fluid comprises premium gasoline.
Krauja Ziedonis I. (East Peoria IL) Krieger Jeffrey J. (Peoria IL) Shafer Scott F. (Peoria IL) Kroeger Craig A. (East Peoria IL), Flame incubating and propagating apparatus for a fuel combustion system.
Kobayashi,Tatsuo, Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine.
Kobayashi,Tatsuo, Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine.
Binions,Greg, Liquid fuel composition having aliphatic organic non-hydrocarbon compounds, an aromatic hydrocarbon having an aromatic content of less than 15% by volume, an oxygenate, and water.
Simko Aladar O. (Dearborn Heights MI) Havstad Peter H. (Livonia MI) Harrington Joseph A. (Naperville IL), Method of operating an engine with a high heat of vaporization fuel.
Stokes Richard A. (112 E. Fourth St. ; Apt. B-1 Aberdeen WA 98520), Methods and apparatus for vaporizing and utilizing fuels of various octane ratings.
zur Loye, Axel O; Brackney, Larry J; Chenanda, Cariappa M; Hurst, Robert M; Peters, Lester L; Pierz, Patrick M; Wright, John F, Multiple operating mode engine and method of operation.
zur Loye Axel O. ; Akinyemi Omowoleola C. ; Durrett Russ P. ; Flynn Patrick F. ; Hunter Gary L. ; Moore Greg A. ; Mudd Jackie M. ; Muntean George G. ; Wagner Julie A. ; Wright John F., Premixed charge compression ignition engine with optimal combustion control.
Mitsumoto Hisashi (Ebina JPX), Spark ignition timing control system for internal combustion engine adapted to mixture fuel of more than one individual.
Kuo,Tang Wei; Brown,Barry L.; Najt,Paul M.; Eng,James A., Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engine.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.