[특허]Minimizing alcohol use in high efficiency alcohol boosted gasoline engines

Ethanol Boosting Systems, LLC

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특허 상세정보

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Minimizing alcohol use in high efficiency alcohol boosted gasoline engines

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-007/00 F02B-013/00 F02M-043/00 F02D-045/00 F02B-017/00 F02D-019/08 F02D-019/12 F02D-035/02 F02D-041/00 F02M-025/022 F02P-005/152 F02D-019/06 F02B-075/12 F02D-013/02 F02D-015/00 F02D-031/00 F02D-037/02 F02M-037/00
미국특허분류(USC)	123/577; 123/304; 123/575
출원번호	US-0249706 (2014-04-10)
등록번호	US-8919330 (2014-12-30)
발명자 / 주소	Bromberg, Leslie Cohn, Daniel R.
출원인 / 주소	Ethanol Boosting Systems, LLC
대리인 / 주소	Nields, Lemack & Frame, LLC
인용정보	피인용 횟수 : 1 인용 특허 : 104

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 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.

대표
청구항
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1. A spark ignition engine system, where a first fluid is introduced into said engine from a first source and a second fluid, which is alcohol, 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 wherein the engine operation modification allows a reduction in an amount of said second fluid that would otherwise be used over a prolonged period of time without causing knock, based on a change in vehicle operating condition wherein said change comprises operation at a higher average value of torque over said prolonged period of time. 2. The spark ignition engine of claim 1, wherein the second fluid is directly injected. 3. The spark ignition engine system of claim 1, wherein said engine operation modification comprises an increase in spark retard timing. 4. The spark ignition engine system of claim 1, wherein said engine operation 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 engine operation modification comprises a change in the ratio of said first fluid to air. 6. The spark ignition engine system of claim 1, wherein said engine operation modification comprises an increase in RPM. 7. The spark ignition engine system of claim 6, further comprising a transmission, wherein said controller instructs said transmission to upspeed. 8. The spark ignition engine system of claim 1, wherein said engine operation 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, 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 engine operation modification is initiated 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 engine operation modification is initiated 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 engine operation 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 first fluid comprises gasoline. 16. The spark ignition engine system of claim 1 where said first fluid comprises natural gas. 17. The spark ignition engine system of claim 1 wherein said modification comprises increased spark retard and upspeeding. 18. The spark ignition engine system of claim 1, wherein said first fluid comprises premium gasoline 19. The spark ignition engine of claim 1, where the first fluid is directly injected. 20. The spark ignition engine of claim 2, where the first fluid is directly injected. 21. A spark ignition engine system, where fuel is introduced into said engine by port injection from a first fueling system and fuel in a liquid state is directly injected into said engine from a second fueling system and provides vaporization cooling resulting in octane enhancement and wherein the ratio of fuel from the second fueling system to fuel from the first fueling system varies with engine torque so as to prevent knock, comprising: a controller configured to modify the operation of said engine so that the engine operation modification allows a reduction in an amount of fuel from the second fueling system that would otherwise be used over a prolonged period of time without causing knock, based on a change in vehicle operating condition wherein said change comprises operation at a higher average value of torque over said prolonged period of time. 22. The spark ignition engine system of claim 21, wherein said engine operation modification comprises an increase in spark retard timing. 23. The spark ignition engine system of claim 21, wherein said fuel from the first fueling system is mixed with air prior to being introduced into said engine and said engine operation modification comprises a change in the ratio of said fuel from the first fueling system to air. 24. The spark ignition engine system of claim 21, wherein said engine operation modification comprises an increase in RPM. 25. The spark ignition engine system of claim 24, further comprising a transmission, wherein said controller instructs said transmission to upspeed. 26. The spark ignition engine system of claim 21, further comprising a knock sensor, wherein said knock sensor provides input to said controller to modify said operation of said engine. 27. The spark ignition engine system of claim 21, wherein said engine operation modification comprises increased spark retard and upspeeding.

이 특허에 인용된 특허 (104)

이 특허를 인용한 특허 피인용횟수: 1

Bromberg, Leslie; Cohn, Daniel R.. Minimizing alcohol use in high efficiency alcohol boosted gasoline engines. USP2016039273618.

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Minimizing alcohol use in high efficiency alcohol boosted gasoline engines

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Minimizing alcohol use in high efficiency alcohol boosted gasoline engines

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이 특허에 인용된 특허 (104)

이 특허를 인용한 특허 피인용횟수: 1

IPC 상위 출원인

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