Method for modifying air provided for regeneration
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0175060
(2008-07-17)
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등록번호 |
US-8091346
(2012-01-10)
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발명자
/ 주소 |
- Kapparos, David Joseph
- Cox, Glenn Brian
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출원인 / 주소 |
|
대리인 / 주소 |
Finnegan, Henderson, Farabow, Garrett & Dunner LLP
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인용정보 |
피인용 횟수 :
2 인용 특허 :
10 |
초록
▼
A method for regenerating a filtering device is disclosed. The method may include creating a flow of exhaust with a power source and providing air to a combustion device configured to heat the flow of exhaust. The method may also include determining if a parameter is above a threshold. The parameter
A method for regenerating a filtering device is disclosed. The method may include creating a flow of exhaust with a power source and providing air to a combustion device configured to heat the flow of exhaust. The method may also include determining if a parameter is above a threshold. The parameter may be indicative of an amount of air provided to the combustion device. The method may further include modifying an operating condition of the power source if the parameter is above the threshold, where modifying the operating condition affects the parameter.
대표청구항
▼
1. An emissions control system having a filtering device, the emissions control system comprising: a first passageway configured to receive an exhaust flow from a power source;a second passageway having an input in fluid communication with air compressed by a turbocharger;a combustion device configu
1. An emissions control system having a filtering device, the emissions control system comprising: a first passageway configured to receive an exhaust flow from a power source;a second passageway having an input in fluid communication with air compressed by a turbocharger;a combustion device configured to heat the exhaust flow in the first passageway, the combustion device being configured to receive air from the second passageway; anda controller configured to: calculate if a parameter is above a threshold, the parameter being indicative of an amount of air provided to the combustion device; andmodify a parasitic load on the power source if the parameter is above the threshold to increase the amount of air provided to the combustion device, wherein the controller is configured to modify the parasitic load until the parasitic load exceeds a threshold parasitic load and then increase the speed of the power source. 2. The emissions control system of claim 1, wherein the turbocharger is connected to the first passageway and the second passageway. 3. The emissions control system of claim 1, wherein the parameter is at least one of an equivalence ratio or a combustion air sufficiency. 4. The emissions control system of claim 3, wherein the threshold for the equivalence ratio has a value of approximately 2.5. 5. The emissions control system of claim 4, wherein the threshold is an upper threshold, and further including a valve configured to restrict the air received by the combustion device, wherein the controller restricts the air if the equivalence ratio is below a lower threshold of approximately 0.5. 6. The emissions control system of claim 1, the combustion device being configured to regenerate the filtering device when the parameter is below the threshold. 7. A method of regenerating a filtering device, the method comprising: creating a flow of exhaust with a power source;providing air to a combustion device configured to heat the flow of exhaust after the flow of exhaust has exited the power source;determining if a parameter is above a threshold, the parameter being indicative of an amount of air provided to the combustion device; andif the parameter is above the threshold, modifying with a controller a parasitic load of the power source until the parasitic load exceeds a threshold parasitic load and then increasing the speed of the power source. 8. The method of claim 7, wherein the speed of the power source to affects the parameter. 9. The method of claim 8, wherein the parameter is an equivalence ratio. 10. The method of claim 9, wherein the threshold for the equivalence ratio has a value of approximately 2.5. 11. The method of claim 10, wherein the threshold is an upper threshold, and further including restricting the input air if the equivalence ratio is below a lower threshold of approximately 0.5. 12. The method of claim 8, further including regenerating the filtering device when the parameter is below the threshold. 13. The method of claim 8, further including compressing the air prior to providing the air, wherein an increase in the speed of the power source or the parasitic load results in an increased compression of the air. 14. The method of claim 8, wherein the threshold parasitic load is set at a maximum operating setting for a parasitic device producing the parasitic load. 15. The method of claim 8, wherein the parameter is a combustion air sufficiency. 16. A method of regenerating a filtering device, the method comprising: driving a turbocharger to compress air with a flow of exhaust generated by a power source;providing air compressed by the turbocharger to a combustion device configured to heat the flow of exhaust;determining if a parameter is within a range of acceptable values, the parameter being indicative of an amount of air provided to the combustion device; andmodifying a parasitic load on the power source, if the parameter is above the range, to increase the air compressed by the turbocharger and increase the amount of air provided to the combustion device, wherein modifying the parasitic load includes modifying the parasitic load until the parasitic load exceeds a threshold parasitic load and then increasing the speed of the power source. 17. The method of claim 16, wherein increasing the speed of the power source increases the air compressed by the turbocharger and increases the amount of air provided to the combustion device. 18. The method of claim 17, wherein the parameter is at least one of an equivalence ratio or a combustion air sufficiency.
이 특허에 인용된 특허 (10)
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Langen Herbert (Altbach DEX), Device for the thermal regeneration of particle filters for diesel engine exhaust gas.
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Yahata, Shigeto; Saito, Makoto; Kuboshima, Tsukasa; Okugawa, Shinichiro; Kinugawa, Masumi, Exhaust gas filtering system having particulate filter for internal combustion engine.
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Sisken,Kevin Dean; Pavlova MacKinnon,Zornitza Pavlinova, Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter.
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Strom,Hans; Koopmans,Lucien, Method for auto-ignition operation and computer readable storage device for use with an internal combustion engine.
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Kuenstler, Johannes; Moraal, Paul Eduard; Christen, Urs; Yacoub, Yasser Mohamed Sayed, Method for regenerating a diesel particulate filter.
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Achleitner Erwin (Regensburg DEX) Koch Achim (Tegerheim DEX), Process for checking a burner system for heating a catalytic converter.
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Nakano,Masahiko; Kawashima,Junichi; Tsutsumoto,Naoya; Ootake,Makoto; Kondo,Terunori; Ueno,Shouichirou; Koga,Toshimasa, Regeneration of diesel particulate filter.
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Goerlich Dieter (Emmering DEX), Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine.
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Jackson Barry N. (De Pere WI), Sound suppressor for fluid flow lines.
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Gomulka, Ted G., System and method for regenerating exhaust system filtering and catalyst components.
이 특허를 인용한 특허 (2)
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Kleinfeld, Christopher J., Bypass fluid system for exhaust aftertreatment.
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Görgen, Michael; Sonner, Markus, Method for operating a drive device and corresponding drive device.
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