[특허]Exhaust system having 3-way valve

Caterpillar Inc.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Exhaust system having 3-way valve

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-037/16
미국특허분류(USC)	060/605.2; 060/612; 137/625.47; 137/625.5; 137/872
출원번호	US-0222010 (2008-07-31)
등록번호	US-8176737 (2012-05-15)
발명자 / 주소	Pierpont, David Andrew Timmons, John Parker Easley, Jr., William L.
출원인 / 주소	Caterpillar Inc.
대리인 / 주소	Finnegan, Henderson, Farabow, Garrett & Dunner LLP
인용정보	피인용 횟수 : 5 인용 특허 : 43

초록
▼

An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold, a second exhaust manifold, and an exhaust gas recirculation circuit. The exhaust system may also have a fixed geometry turbocharger with a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold. The exhaust system may also have a recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust man...

대표
청구항
▼

1. An exhaust system for an engine, comprising:a first exhaust manifold configured to receive exhaust from the engine;a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold;an exhaust gas recirculation circuit;a fixed geometry turbocharger having a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold; anda recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold, and the exhaust gas recirculation circuit, the recirculation control valve having a valve element movable to selectively adjust a flow of exhaust in the first and second volute, while directing an additional flow from the recirculation control valve to the exhaust gas recirculation circuit, the valve element having a closed position blocking the additional flow from passing to the exhaust gas recirculation circuit. 2. The exhaust system of claim 1, wherein the valve element is movable to selectively allow exhaust entering the recirculation control valve from the first exhaust manifold to pass to only the exhaust gas recirculation circuit, to allow exhaust entering the recirculation control valve from the first exhaust manifold to pass to both the exhaust gas recirculation circuit and the second exhaust manifold, or to allow exhaust entering the recirculation control valve from the first exhaust manifold to pass to only the second exhaust manifold. 3. The exhaust system of claim 1, wherein the recirculation control valve is a proportional control valve and the valve element is selectively movable to adjust a flow restriction on exhaust passing through the second exhaust manifold and the exhaust gas recirculation circuit simultaneously. 4. The exhaust system of claim 3, wherein a flow restriction adjustment affects a flow rate of exhaust passing to the exhaust gas recirculation circuit. 5. The exhaust system of claim 1, wherein the valve element is a normally closed element biased to allow exhaust from the first exhaust manifold to pass to only the exhaust gas recirculation circuit. 6. The exhaust system of claim 5, wherein a greater opening of the valve element results in less exhaust passing through the exhaust gas recirculation circuit. 7. The exhaust system of claim 1, wherein exhaust from the first exhaust manifold passing through the recirculation control valve mixes with exhaust from the second exhaust manifold before passing through the turbocharger. 8. The exhaust system of claim 1, wherein the recirculation control valve is separate from the turbocharger. 9. The exhaust system of claim 1, wherein the first volute has a greater restriction than the second volute to drive exhaust flow through the exhaust gas recirculation circuit. 10. The exhaust system of claim 1, further including a cooler located within the exhaust gas recirculation circuit downstream of the recirculation control valve. 11. The exhaust system of claim 10, further including a flow sensor located within the exhaust gas recirculation circuit downstream of the cooler. 12. The exhaust system of claim 10, further including a check valve located within the exhaust gas recirculation circuit downstream of the cooler at a location where exhaust mixes with ambient air. 13. The exhaust system of claim 1, the valve element having an open position, wherein moving the valve element from the open position toward the closed position simultaneously increases a flow of exhaust from the first exhaust manifold to the second exhaust manifold and decreases a flow of the additional flow passing to the exhaust gas recirculation circuit. 14. A method for controlling the pressure of exhaust gas in a recirculation circuit, comprising: receiving exhaust from a first plurality of combustion chambers and from a second plurality of combustion chambers;directing exhaust received from the first plurality of combustion chambers, through a valve, to the recirculation circuit;directing exhaust received from the first plurality of combustion chambers through a first portion of a turbocharger to simultaneously increase an exhaust pressure of the recirculation circuit, increase a pressure of exhaust directed to the first portion, and decrease a pressure of exhaust directed to a second portion of the turbocharger;selectively directing exhaust received from the first plurality of combustion chambers through the valve to mix with exhaust received from the second plurality of combustion chambers, form a mixed exhaust, and adjust the exhaust pressure of the recirculation circuit; anddirecting the mixed exhaust through the turbocharger without passing the mixed exhaust through the recirculation circuit. 15. The method of claim 14, further including selectively adjusting an amount of exhaust directed through the recirculation circuit by changing a restriction on the exhaust directed to mix with exhaust received from the second plurality of combustion chambers. 16. The method of claim 15, wherein the restriction is infinitely changeable. 17. The method of claim 16, further including: sensing the amount of exhaust directed through the recirculation circuit; andchanging the restriction based on the sensed amount. 18. The method of claim 15, wherein an increase in the restriction results in an increase in the amount of exhaust directed through the recirculation circuit. 19. The method of claim 14, wherein the pressure increase caused by exhaust received from the first plurality of combustion chambers being directed through the turbocharger drives exhaust through the recirculation circuit. 20. The method of claim 14, further including cooling the exhaust directed through the recirculation circuit. 21. The method of claim 14, wherein the first portion of the turbocharger receives exhaust from the first plurality of combustion chambers via a direct fluid connection extending from a first manifold fluidly connected to the first plurality of combustion chambers to the first portion, and wherein the mixed exhaust is directed through the second portion of the turbocharger. 22. The method of claim 14, further including increasing a pressure of the mixed exhaust with the valve while simultaneously decreasing the exhaust pressure of the recirculation circuit with the valve. 23. A power system, comprising: a combustion engine having a first plurality of combustion chambers and a second plurality of combustion chambers;a first exhaust manifold configured to receive exhaust from the first plurality of combustion chambers;a second exhaust manifold configured to receive exhaust from the second plurality of combustion chambers in parallel with the first exhaust manifold;an exhaust gas recirculation circuit;a fixed geometry turbocharger having a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold;a proportional recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold, and the exhaust gas recirculation circuit, the proportional recirculation control valve having a single inlet, and a valve element movable to selectively adjust a flow of exhaust in the exhaust gas recirculation circuit, the first volute, and the second volute; anda cooler located within the exhaust gas recirculation circuit downstream of the proportional recirculation control valve. 24. The power system of claim 23, further including a passage directing exhaust from the first exhaust manifold to the first volute without passing through the proportional recirculation control valve.

이 특허에 인용된 특허 (43)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Exhaust system having 3-way valve

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (43)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Exhaust system having 3-way valve

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (43)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼