[특허]Fuel cell system and method for controlling same

NISSAN MOTOR CO., LTD.

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

Fuel cell system and method for controlling same

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-008/04 H01M-008/04089(2016.01) H01M-008/0438 H01M-008/04746(2016.01) H01M-008/04119(2016.01) H01M-008/0432 H01M-008/1018
출원번호	US-0129986 (2009-11-16)
등록번호	US-9786931 (2017-10-10)
우선권정보	JP-2008-298191 (2008-11-21); JP-2008-302465 (2008-11-27)
국제출원번호	PCT/JP2009/069425 (2009-11-16)
§371/§102 date	20110802 (20110802)
국제공개번호	WO2010/058747 (2010-05-27)
발명자 / 주소	Ichikawa, Yasushi Ikezoe, Keigo Goto, Kenichi Nakayama, Ken Kumada, Mitsunori Tomita, Yousuke
출원인 / 주소	NISSAN MOTOR CO., LTD.
대리인 / 주소	Foley & Lardner LLP
인용정보	피인용 횟수 : 0 인용 특허 : 5

초록
▼

A fuel cell system 100 includes: a fuel cell 1 for generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode 34 and a fuel gas supplied to a fuel electrode 67; a fuel gas supplier HS for supplying the fuel gas to the fuel electrode 67; and a controller 40 for controlling the fuel gas supplier HS to thereby supply the fuel gas to the fuel electrode 67, the controller 40 being configured to implement a pressure change when an outlet of the fuel electrode 67 side is closed, wherein based on a first pre...

대표
청구항
▼

1. A fuel cell system comprising: a fuel cell for generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode and a fuel gas supplied to a fuel electrode;a fuel gas supplier for supplying the fuel gas to the fuel electrode, the fuel gas supplier including a fuel electrode inlet flow channel and a valve provided in the fuel electrode inlet flow channel, wherein the fuel gas is supplied to the fuel electrode through the fuel electrode inlet flow channel and the valve;a fuel electrode off-gas flow channel led directly from the fuel electrode for discharging a fuel electrode off-gas to atmosphere, wherein the fuel electrode off-gas flow channel includes a limiter for limiting a return of the fuel electrode off-gas to the fuel electrode inlet flow channel, and wherein the limiter includes a buffer device and a purge valve that are disposed in the fuel electrode off-gas flow channel; anda controller for controlling the fuel gas supplier, wherein the controller is programmed to control a valve opening degree of the valve provided in the fuel electrode inlet flow channel such that a pressure of the fuel gas at the fuel electrode changes in a first pressure change pattern and in a second pressure change pattern, wherein the first pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a first pressure range, and wherein the second pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a second pressure range which is larger than the first pressure range and has a lower implementation frequency than an implementation frequency of the first pressure change pattern. 2. The fuel cell system according to claim 1, wherein: the buffer device has a space of a predetermined capacity, andthe purge valve is disposed on a downstream side of the buffer device in the fuel electrode off-gas flow channel and configured to shut the fuel electrode off-gas flow channel. 3. The fuel cell system according to claim 1, wherein the controller implements the second pressure change pattern after implementing a plurality of the first pressure change patterns. 4. The fuel cell system according to claim 1, wherein in a state that the power generation of the fuel cell is implemented by supplying the fuel gas from the fuel gas supplier at a predetermined operation pressure, the controller stops supplying the fuel gas to the fuel cell, and in a condition that the fuel gas pressure at the fuel electrode is decreased by a predetermined pressure range, the controller restarts supplying the fuel gas to the fuel cell, to thereby change the fuel gas pressure in the fuel electrode. 5. The fuel cell system according to claim 1, wherein the lower an operation temperature of the fuel cell is, the smaller the controller sets a supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change. 6. The fuel cell system according to claim 1, further comprising: an oxidant gas supplier for supplying the oxidant gas to the oxidant electrode,wherein the smaller an operation pressure of the oxidant gas in the oxidant electrode is, the smaller the controller sets a supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change. 7. The fuel cell system according to claim 1, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets longer an implementation period of the pressure change. 8. The fuel cell system according to claim 5, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets longer an implementation period of the pressure change. 9. The fuel cell system according to claim 6, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets longer an implementation period of the pressure change. 10. The fuel cell system according to claim 1, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets smaller a pressure range. 11. The fuel cell system according to claim 5, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets smaller a pressure range. 12. The fuel cell system according to claim 6, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller sets smaller a pressure range. 13. The fuel cell system according to claim 1, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller decreases an implementation frequency of the second pressure change pattern relative to the first pressure change pattern. 14. The fuel cell system according to claim 5, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller decreases an implementation frequency of the second pressure change pattern relative to the first pressure change pattern. 15. The fuel cell system according to claim 6, wherein when the controller sets smaller the supply quantity of the fuel gas supplied to the fuel electrode attributable to the pressure change, the controller decreases an implementation frequency of the second pressure change pattern relative to the first pressure change pattern. 16. The fuel cell system according to claim 1, further comprising: an output takeout device for taking out an output from the fuel cell,wherein, the controller so controls the output takeout device as to take out an output from the fuel cell where the output corresponds to a required load required for the fuel cell system, and the controller controls fuel gas supply-and-stop by the fuel gas supplier based on a predetermined control pattern to thereby supply the fuel gas in such a manner as to periodically change the pressure at the fuel electrode,the predetermined control pattern includes: a first process for decreasing the pressure of the fuel electrode from an upper limit pressure to a lower limit pressure, anda second process for returning the pressure of the fuel electrode from the lower limit pressure to the upper limit pressure, andwhen the required load is high, the controller increases the fuel gas supply quantity in one implementation period of the predetermined control pattern compared with when the required load is low. 17. The fuel cell system according to claim 16, wherein a first keeping time for keeping the pressure of the fuel electrode at the upper limit pressure before the first process is implemented or a second keeping time for keeping the pressure of the fuel electrode at the lower limit pressure before the second process is implemented can be set to the predetermined control pattern, andthe higher the required load is, the longer the controller sets the first keeping time or the second keeping time. 18. The fuel cell system according to claim 16, wherein a first keeping time for keeping the pressure of the fuel electrode at the upper limit pressure before the first process is implemented can be set to the predetermined control pattern, andthe higher the required load is, the longer the controller sets the first keeping time. 19. The fuel cell system according to claim 17, wherein the higher the required load is in a region from a low load to an intermediate load, the longer the controller sets the second keeping time. 20. The fuel cell system according to claim 17, wherein the higher the required load is in a region from an intermediate load to a high load, the longer the controller sets the first keeping time. 21. The fuel cell system according to claim 16, wherein a first keeping time for keeping the pressure of the fuel electrode at the upper limit pressure before the first process is implemented can be set to the predetermined control pattern, andthe higher an impurity concentration in the fuel electrode is, the longer the controller sets the first keeping time. 22. The fuel cell system according to claim 16, wherein the higher an impurity concentration in the fuel electrode is, the larger the controller sets the upper limit pressure. 23. The fuel cell system according to claim 22, wherein when the required load is low, the controller sets large a pressure drop speed in the first process. 24. The fuel cell system according to claim 16, wherein the more a liquid water quantity in the fuel electrode is, the smaller the controller sets the lower limit pressure. 25. A method of controlling a fuel cell system, comprising: generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode and a fuel gas supplied to a fuel electrode;supplying the fuel gas to the fuel electrode through a fuel electrode inlet flow channel and a valve provided in the fuel electrode inlet flow channel;discharging a fuel electrode off-gas to atmosphere through a fuel electrode off-gas flow channel led directly from the fuel electrode, wherein the fuel electrode off-gas flow channel includes a limiter for limiting a return of the fuel electrode off-gas to the fuel electrode inlet flow channel, and the limiter includes a buffer device and a purge valve that are disposed in the fuel electrode off-gas flow channel; andcontrolling the supplying operation of the fuel gas by controlling a valve opening degree of the valve provided in the fuel electrode inlet flow channel such that a pressure of the fuel gas at the fuel electrode changes in a first pressure change pattern and in a second pressure change pattern, wherein the first pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a first pressure range, and wherein the second pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a second pressure range which is larger than the first pressure range and has a lower implementation frequency than an implementation frequency of the first pressure change pattern. 26. A fuel cell system comprising: a fuel cell for generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode and a fuel gas supplied to a fuel electrode;means for supplying the fuel gas to the fuel electrode that includes a fuel electrode inlet flow channel and a valve provided in the fuel electrode inlet flow channel, wherein the fuel gas is supplied to the fuel electrode through the fuel electrode inlet flow channel and the valve;means for discharging a fuel electrode off-gas to atmosphere that is led directly from the fuel electrode and includes a limiter for limiting a return of the fuel electrode off-gas to the fuel electrode, and wherein the limiter includes a buffer device and a purge valve that are disposed in the means for discharging the fuel electrode off-gas; andmeans for controlling the supplying means by controlling a valve opening degree of the valve provided in the fuel electrode inlet flow channel such that a pressure of the fuel gas at the fuel electrode changes in a first pressure change pattern and in a second pressure change pattern, wherein the first pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a first pressure range, and wherein the second pressure change pattern comprises periodical changes in the pressure of the fuel gas at the fuel electrode over a second pressure range which is larger than the first pressure range and has a lower implementation frequency than an implementation frequency of the first pressure change pattern.

이 특허에 인용된 특허 (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

Fuel cell system and method for controlling same

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (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

Fuel cell system and method for controlling same

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (5)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼