IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0378903
(2006-03-17)
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등록번호 |
US-7665452
(2010-04-09)
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발명자
/ 주소 |
- Russell, John D.
- Andri, Michael
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출원인 / 주소 |
- Ford Global Technologies, LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
97 |
초록
▼
An engine system, comprising of a combustion chamber; a first spark plug configured to perform a spark within the combustion chamber, said first plug configured to have a first heat range; a second spark plug configured to produce a spark within the combustion chamber, said second plug configured to
An engine system, comprising of a combustion chamber; a first spark plug configured to perform a spark within the combustion chamber, said first plug configured to have a first heat range; a second spark plug configured to produce a spark within the combustion chamber, said second plug configured to have a second heat range different from said first heat range of said first plug; and a delivery system configured to deliver a hydrocarbon fuel and a fluid including an alcohol to the combustion chamber in varying resulting ratios.
대표청구항
▼
The invention claimed is: 1. An engine system, comprising: a combustion chamber; a first spark plug configured to perform a spark within the combustion chamber, said first plug configured to have a first heat range; a second spark plug configured to produce a spark within the combustion chamber, sa
The invention claimed is: 1. An engine system, comprising: a combustion chamber; a first spark plug configured to perform a spark within the combustion chamber, said first plug configured to have a first heat range; a second spark plug configured to produce a spark within the combustion chamber, said second plug configured to have a second heat range different from said first heat range of said first plug; and a delivery system configured to deliver a hydrocarbon fuel and a fluid including an alcohol to the combustion chamber in varying resulting ratios. 2. The engine system of claim 1, wherein the first spark plug has a first ceramic portion and the second spark plug has a second ceramic portion, said second ceramic portion having a different size than said first ceramic portion. 3. The engine system of claim 1, wherein the first spark plug is configured to transfer heat at a different rate than the second spark plug. 4. The engine system of claim 1, wherein the first spark plug has a different shape than the second spark plug and wherein the combustion chamber is configured to receive the first and the second spark plug. 5. The engine system of claim 1, wherein the first spark plug has a different size than the second spark plug and wherein the combustion chamber is configured to receive the first and the second spark plug. 6. The engine system of claim 5, wherein the first spark plug projects further into the combustion chamber than the second spark plug. 7. The engine system of claim 1, wherein at least an insulating portion of the first spark plug comprises a different material than an insulating portion of the second spark plug. 8. The engine system of claim 1, further comprising a control system configured to during a first condition, initiate combustion within the combustion chamber via only the first spark plug; and during a second condition, initiate combustion within the combustion chamber via only the second spark plug. 9. The engine system of claim 1, wherein the control system is configured to during a third condition, operate the first spark plug to perform at least one spark and operate the second spark plug to perform at least one spark during a cycle of the combustion chamber. 10. An engine system, comprising: a combustion chamber configured to receive a first spark plug and a second spark plug; a first spark plug configured to perform a spark within the combustion chamber, said first plug at a first location in the combustion chamber; a second spark plug configured to produce a spark within the combustion chamber; said second plug at a second location in the combustion chamber having a greater heat transfer than the first spark plug located at the first location; and a delivery system configured to deliver a hydrocarbon fuel and a fluid including alcohol to the combustion chamber in varying resulting ratios. 11. The engine system of claim 10, further comprising a control system configured to during a first condition, initiate combustion via only the first spark plug; and during a second condition, initiate combustion via only the second spark plug. 12. The engine system of claim 10, wherein the first spark plug is configured for a first heat range and the second spark plug is configured for a second heat range, wherein the first heat range and the second heat range are substantially similar. 13. The engine system of claim 10, wherein the first spark plug is configured for a first heat range and the second spark plug is configured for a second heat range, wherein the first heat range is different than the second heat range. 14. The engine system of claim 10, wherein the first location and the second location are asymmetrically arranged about a centerline of the combustion chamber. 15. The engine system of claim 10, wherein the combustion chamber is configured such that the tip of the first spark plug is at a higher temperature than the tip of the second spark plug. 16. The engine system of claim 10, wherein the combustion chamber includes a coolant system configured to transfer heat from at least one of the first and the second spark plugs, wherein the coolant system is configured to transfer more heat from the first spark plug than the second spark plug so that the first spark plug is at a lower temperature during a condition of the combustion chamber. 17. An engine system, comprising: a combustion chamber; a first spark plug configured to perform a spark within the combustion chamber, said first plug configured to have a first heat range; a second spark plug configured to produce a spark within the combustion chamber; said second plug configured to have a second heat range different from said first heat range of said first plug, so that under an operating condition, the first spark plug is at a higher temperature than the second spark plug; a delivery system configured to deliver a hydrocarbon fuel and a fluid including alcohol to the combustion chamber in varying ratios. 18. The engine system of claim 17, further comprising a control system configured to control the delivery of the hydrocarbon fuel and the fluid responsive to an indication of knock. 19. The engine system of claim 18, wherein the control system is configured to use only the first spark plug during a first ratio of the fuel and the fluid and only the second spark plug during a second ratio of the fuel and the fluid. 20. The engine system of claim 18, wherein at least one of the first spark plug and the second spark plug are used by the control system to detect at least one of preignition within the combustion chamber, spark plug fouling, misfire and knock.
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