[특허]Systems and methods for closed crankcase ventilation and air filtration

Systems and methods for closed crankcase ventilation and air filtration 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-077/00 F02M-025/06 F01M-013/04 F01M-013/02
출원번호	US-0610303 (2015-01-30)
등록번호	US-9650927 (2017-05-16)
발명자 / 주소	Subedi, Yashpal Schwandt, Brian W. Schwartz, Scott W.
출원인 / 주소	CUMMINS FILTRATION IP, INC.
대리인 / 주소	Foley & Lardner LLP
인용정보	피인용 횟수 : 0 인용 특허 : 22

초록 ▼

A system for providing air to an internal combustion engine is described. The system includes a crankcase ventilation unit that separates oil from the unrefined blowby gas and discharges refined blowby gas. A conduit delivers the refined blowby gas to an air cleaner housing. The air cleaner housing includes a first chamber that receives intake air through a first port, a second chamber that receives intake air from the first chamber and refined blowby gas from the conduit through a second port, and a third chamber that receives a mixture of intake air and refined blowby gas from the second chamber and discharges the mixture through a third port. A primary filter element filters the intake air as it passes from the first chamber to the second chamber. A secondary filter element filters the mixture as it passes from the second chamber to the third chamber.

대표청구항 ▼

1. A system for providing combustion air to an internal combustion engine, the system comprising: a crankcase ventilation unit that receives unrefined blowby gas from a crankcase of the internal combustion engine, that separates oil from the unrefined blowby gas with an air-oil separator, and that discharges refined blowby gas;an air cleaner housing having a flowpath therethrough from upstream to downstream; anda conduit that connects the crankcase ventilation unit to the air cleaner housing so as to deliver the refined blowby gas to the air cleaner housing, thereby forming a closed crankcase ventilation system;wherein the air cleaner housing comprises: a first chamber that receives intake air through a first port;a second chamber downstream of the first chamber that receives intake air from the first chamber and that receives refined blowby gas from the conduit through a second port;a third chamber downstream of the second chamber that receives a mixture of intake air and refined blowby as from the second chamber and that discharges the mixture through a third port;a primary filter element that filters the intake air as it passes from the first chamber to the second chamber; anda secondary filter element that filters the mixture as it passes from the second chamber to the third chamber. 2. The system of claim 1, further comprising a forced induction device downstream of the air cleaner housing that pressurizes the mixture before it reaches the internal combustion engine. 3. The system of claim 2, wherein the secondary filter element prevents debris from reaching the forced induction device. 4. The system of claim 3, wherein the secondary filter element prevents ice fumed from mixing relatively colder intake air with relatively hotter refined blowby gas from reaching the forced induction device. 5. The system of claim 1, wherein the secondary filter element further separates oil from the refined blowby gas. 6. The system of claim 5, wherein the secondary filter element comprises a coalescing filter. 7. The system of claim 6, wherein the secondary filter element comprises a rotating coalescing filter. 8. The system of claim 1, wherein the secondary filter element comprises foam. 9. The system of claim 1, wherein the secondary filter element comprises an oleophobic medium. 10. The system of claim 1, wherein the air cleaner housing further comprises a mass air flow sensor located downstream of the first port and upstream of the second port. 11. The system of claim 10, wherein the mass air flow sensor is located downstream of the primary filter element.

이 특허에 인용된 특허 (22)

Holmes,Lester E.; Jones,Steven R.; Haggard,Clifford D., Air filter assembly system and method.
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Dickson Gary, Air filter for an internal combustion engine having a primary air region and a secondary air region.
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Liu, Benjamin Y. H.; Sun, James J., Automatic condensed oil remover.
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Walker ; Jr. Robert A., Combination air-filter/air-oil separator with integral vacuum regulator.
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Burgess, Stephen F., Crankcase emission control system for crankcase breather.
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Enright Bernard F. (Wauwatosa WI), Crankcase pressure regulation system for an internal combustion engine.
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Holzmann, Mark V.; Rutzinski, Ryan W.; Conner, Michael J.; Holm, Christopher E.; Clark, Bradley T., Crankcase ventilation system with engine driven pumped scavenged oil.
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Herman, Peter K.; Connor, Michael J.; Holm, Christopher E.; Holzmann, Mark V., Crankcase ventilation system with pumped scavenged oil.
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Herman, Peter K.; Connor, Michael J.; Holm, Christopher E.; Holzmann, Mark V., Crankcase ventilation system with pumped scavenged oil.
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Mayer, Andreas; Stussi, Rudolf, Device for returning the blow-by rate from the crankcase into the system of a supercharged internal combustion engine.
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Feuling James J. (2521 Palma Ventura CA 93003), Engine air intake filter and crankcase breather oil collection assembly.
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Heckel, Scott P.; Moy, Jerald J.; Schwartz, Scott W.; Perr, Andrew P.; Holzmann, Mark V.; Herman, Peter K.; Zuroski, Michael T.; Schwandt, Brian W., Engine air management system.
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Heckel, Scott P.; Moy, Jerald J.; Schwartz, Scott W.; Perr, Andrew P.; Holzmann, Mark V.; Herman, Peter K.; Zuroski, Michael T.; Schwandt, Brian W., Engine air management system.
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Heckel, Scott P.; Moy, Jerald J.; Schwartz, Scvott W.; Perr, Andrew P.; Holzmann, Mark V.; Herman, Peter K.; Zuroski, Michael T.; Schwandt, Brian W., Engine air management system.
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Mitsuda, Masataka; Onodera, Takayuki, Engine device.
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Burgess Stephen F., Filter assembly with sump and check valve.
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Burgess, Stephen F.; Tomchak, Thomas M., Filter element and assembly with continuous drain.
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Frazier, Jr., Ronald G.; Tice, David, Filter for a crankcase ventilation system.
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Kolstad,Owen Charles; Iyer,Kartik Ganesan; Delvecchio,Kerry Allen; Williams,Joanna Louise, Particulate trap.
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Burgess, Stephen F., Safety shut-off valve for crankcase emission control system.
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Subedi, Yashpal; Schwandt, Brian W.; Schwartz, Scott W., Systems and methods for closed crankcase ventilation and air filtration.
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Holzmann, Mark V.; Holm, Christopher E.; Schwandt, Brian W., Two stage drainage gas-liquid separator.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Systems and methods for closed crankcase ventilation and air filtration 원문보기

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Systems and methods for closed crankcase ventilation and air filtration 원문보기

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