[특허]Diagnostic system for canister purge system

Diagnostic system for canister purge system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-033/02
출원번호	US-0770009 (1991-10-02)
발명자 / 주소	Cook John E. (Chatham CAX)
출원인 / 주소	Siemens Automotive Limited (Chatham CAX 03)
인용정보	피인용 횟수 : 40 인용 특허 : 0

초록 ▼

An on-board diagnostic system determines if there is a leak in the portion of a canister purge system that includes the fuel tank and the canister that collects volatile fuel vapors from the fuel tank\s headspace. A vacuum regulator/sensor placed in the conduit between the CPS valve and the canister, includes a switch providing a signal indicating the presence or absence of a leak. The sensor also indicates both positive and negative pressures relative to a reference pressure such as atmosphere. During diagnostic testing, the switch is closed and if the switch becomes open this indicates a leak in the headspace of fuel tank on the canister.

대표청구항 ▼

A canister purge system comprising a collection canister for collecting volatile fuel vapors from a fuel tank, and means for selectively purging collected fuel vapors from said canister to an internal combustion engine\s intake manifold for entrainment with a combustible mixture that passes from the manifold into combustion chamber space of the engine for combustion therein, said means including a purge flow path between said canister and manifold, characterized by a diagnostic system that detects unacceptable leakage in a portion of the canister purge system which portion includes said canister and tank and that comprises atmospheric vent means for selectively venting and unventing the canister and headspace of the tank to atmosphere and vacuum regulator/sensor means that is disposed in said flow path and that is selectively operable to open and close said flow path, characterized further by means for causing said diagnostic system to perform a multiple-part diagnostic test to determine whether any such leakage is present comprising means for performing one part of the test comprising pressure increase detection means comprising means for operating said atmospheric vent means to unvent said portion of the canister purge system to atmosphere, flow control means disposed in said flow path between said vacuum regulator/sensor means and intake manifold for selectively opening and closing said flow path, and means for obtaining a measurement of increase in the vapor pressure in said portion in consequence of unventing of said portion to atmosphere and of closing of said flow path by said flow control means, and means for performing another part of the test comprising means for performing a leakage test on said portion comprising means for operating said atmospheric vent means to unvent said portion to atmosphere and means for operating said flow control means to open said flow path so as to allow engine intake manifold vacuum to commence drawing vacuum in said portion, said vacuum regulator/sensor means comprises means for closing said flow path upon the drawing of a certain magnitude of vacuum in said portion within a certain measure of time indicative of the absence of a gross unacceptable leak in said portion, means for distinguishing a gross unacceptable leak in said portion from less gross unacceptable leaks by distinguishing the non-attainment of closure of said flow path by said vacuum regulator/sensor means within said measure of time from the attainment of closure of said flow path by said vacuum regulator/sensor means within said measure of time, means effective after the attainment of closure of said flow path by said vacuum regulator/sensor means within said measure of time for operating said flow control means to cause the magnitude of manifold vacuum delivered through said flow path to said vacuum regulator/sensor means to be attenuated from the magnitude that was delivered prior to closure of said flow path by said vacuum regulator/sensor means, and indicator means for indicating the absence of such a less gross unacceptable leak comprising means for indicating whether or not said vacuum regulator/sensor means has, after having closed said flow path, maintained said flow path closed for a certain period of time, and if maintenance of closure of said flow path for said certain period of time is not indicated, for distinguishing between the presence and absence of such a less gross unacceptable leak comprising means for utilizing the measurement obtained from said one test in distinguishing between the presence and absence of such a less gross unacceptable leak.

이 특허를 인용한 특허 (40)

Veinotte, Andre; Perry, Paul, Apparatus and method for preventing resonance in a fuel vapor pressure management apparatus.
상세보기
Veinotte,Andre; Perry,Paul, Apparatus and method of changing printed circuit boards in a fuel vapor pressure management apparatus.
상세보기
Veinotte, Andre; Perry, Paul, Apparatus for fuel vapor pressure management.
상세보기
Perry,Paul D.; Veinotte,Andre, Apparatus, system and method of establishing a test threshold for a fuel vapor leak detection system.
상세보기
Veinotte, Andre; Perry, Paul, Bi-directional flow seal for a fuel vapor pressure management apparatus.
상세보기
Everingham Gary,CAX ; Cook John E.,CAX ; Perry Paul D.,CAX ; Busato Murray F.,CAX, Canister purge system having improved purge valve control.
상세보기
Everingham Gary,CAX ; Cook John E.,CAX ; Perry Paul D.,CAX ; Busato Murray F.,CAX, Canister purge system having improved purge valve control.
상세보기
Masahito Yamaki JP, Diagnosing apparatus for evaporation purge system and pressure sensor.
상세보기
Perry, Paul; Veinotte, Andre, Electrical connections for an integrated pressure management apparatus.
상세보기
Nakatsu Shuichi (Kanagawa JPX), Engine fuel vapor processor.
상세보기
Meiller Thomas Charles ; Covert Charles Henry ; Labine Susan Scott ; Wagner Richard William, Evaporative emission canister with heated adsorber.
상세보기
Dawson Gary D. ; Blomquist William B. ; Booms Chris J., Evaporative emission control for very small leak detection.
상세보기
Mieczkowski Daniel ; Hasenberg Mark J. ; Becker Thomas P. ; Crass Matthew M. ; Braun Robert D. ; Gisske Edward T. ; Caldwell Donald J., Evaporative emission tester.
상세보기
Mieczkowski Daniel ; Hasenberg Mark J. ; Becker Thomas P. ; Crass Matthew M. ; Braun Robert D. ; Gisske Edward T. ; Caldwell Donald J., Evaporative emission tester.
상세보기
Shigetaka Kuroda JP; Kazutomo Sawamura JP; Masayoshi Yamanaka JP; Hiroshi Maruyama JP; Masataka Chikamatsu JP; Shoichi Nemoto JP; Takeshi Suzuki JP, Evaporative fuel-processing system for internal combustion engines.
상세보기
Veinotte,Andre; Boucher,William J., Flow sensor for purge valve diagnostic.
상세보기
Veinotte,Andre, Flow sensor integrated with leak detection for purge valve diagnostic.
상세보기
Veinotte, Andre, Flow-through diaphragm for a fuel vapor pressure management apparatus.
상세보기
Perry, Paul D., Fluid flow through an integrated pressure management apparatus.
상세보기
Ritz, Ronald R.; Lux, Alexander; Mast, Martin, Fuel liquid and vapor pressure sensor.
상세보기
Veinotte,Andre, Fuel system and method for managing fuel vapor pressure with a flow-through diaphragm.
상세보기
Veinotte, Andre; Perry, Paul, Fuel system including an apparatus for fuel vapor pressure management.
상세보기
Perry, Paul; Veinotte, Andre, In-use rate based calculation for a fuel vapor pressure management apparatus.
상세보기
Mamoru Yoshioka JP; Yoshihiko Hyodo JP; Naoya Takagi JP, Malfunction test apparatus for fuel vapor purge system.
상세보기
Jatcko, Joseph D, Method and apparatus for testing the integrity of a tank.
상세보기
Grunwald, Oliver; Ketterer, Alexander, Method for verifying the tightness of a tank bleeding system without using a pressure sensor.
상세보기
Nankee ; II Robert J. (Canton MI) Moote Richard K. (Ann Arbor MI) Dupuis Charles B. (St. Clair Shores MI) Krozek Dennis A. (Canton MI) Huff Shean P. (Ann Arbor MI) Boss Erika J. (Plymouth MI) Schuelk, Method of controlling a vapor storage canister for a purge control system.
상세보기
Veinotte,Andre; Perry,Paul, Method of designing a fuel vapor pressure management apparatus.
상세보기
Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI) Letcher John E. (Glendale AZ) Hope Mark E. (Ann Arbor MI), Method of leak detection for an evaporative emission control system.
상세보기
Perry,Paul D.; Cook,John E., Method of managing pressure in a fuel system.
상세보기
Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI), Method of pinched line detection for an evaporative emission control system.
상세보기
Brown, Robin J.; Fink, Arthur C., ORVR valve assembly.
상세보기
Veinotte, Andre; Perry, Paul, Poppet for a fuel vapor pressure management apparatus.
상세보기
Perry,Paul; Veinotte,Andre, Poppet for an integrated pressure management apparatus and fuel system and method of minimizing resonance.
상세보기
Paul D. Perry CA, Pressure operable device for an integrated pressure management apparatus.
상세보기
Perry,Paul; Veinotte,Andre, Rationality testing for a fuel vapor pressure management apparatus.
상세보기
Perry, Paul D., Sensor arrangement for an integrated pressure management apparatus.
상세보기
Dunkle, Gary L.; Mullins, Josh J.; Frank, Louis T., Small engine carbon canister with check valve.
상세보기
Dawson, Gary D.; Blomquist, William B.; Booms, Chris J.; Kanafani, Fadi S., Small/gross leak check.
상세보기
Paul D. Perry CA, Solenoid for an integrated pressure management apparatus.
상세보기

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

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

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

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

연합인증

Diagnostic system for canister purge system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (40)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 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

연합인증

Diagnostic system for canister purge system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (40)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트