[특허]Fuel pump

Fuel pump 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-053/02 F04B-053/14 F02M-059/10 F04B-001/04 F02M-059/44
출원번호	US-0195550 (2008-08-21)
등록번호	US-9151289 (2015-10-06)
발명자 / 주소	Crofts, John D. Simmons, Scott R. Thayer, Wesley R. Doszpoly, Bela Rix, David M. Shaull, Anthony A. Buchanan, David L.
출원인 / 주소	Cummins Inc.
대리인 / 주소	Faegre Baker Daniels LLP
인용정보	피인용 횟수 : 0 인용 특허 : 26

초록 ▼

A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove.

대표청구항 ▼

1. A fuel pump, comprising: a fuel pump barrel including a stepped region that transitions an upper portion to a smaller diameter lower portion and a spring disposed about at least a portion of the lower portion, said fuel pump barrel including a bore having first and second ends separated by a length of the bore, said fuel pump barrel including an annular drain groove positioned within the at least a portion of the lower portion, and a drain duct fluidically coupled between said drain groove and a fuel storage vessel, said second bore end forming an opening;a plunger positioned in said bore and extending through said bore opening to form a pumping chamber, said plunger having an outer diameter slightly less than the bore diameter to form a clearance to facilitate reciprocating movement within said bore;a first annular seal positioned adjacent said drain groove and located within the at least a portion of the lower portion between said annular drain groove and said opening to define a maximum seal length along the plunger between the pumping chamber and the annular drain groove;a second annular seal positioned between said first annular seal and said opening forming a cavity between said first annular seal and said second annular seal;a leakage fluid reservoir for receiving leakage fluid from said cavity;a leakage duct fluidically coupled between said cavity and said leakage fluid reservoir; anda seal support configured to retain said first and second annular seals in position;wherein the opening has a diameter that is less than a diameter of the annular drain groove; andwherein combined leakage fluid from said bore and leakage fluid from the pumping chamber in said cavity is drained to said leakage fluid reservoir by said leakage duct, anda cooling duct, formed by said fuel pump barrel, having a lower end which directly opens into the drain groove, and fluidically coupled to said drain groove, configured to permit fuel flow through the fuel pump barrel to the drain groove. 2. The fuel pump of claim 1, wherein said drain groove is substantially at drain pressure. 3. The fuel pump of claim 1, wherein said reservoir comprises a graduated vessel with indication of maximum allowable leakage, an input port, a resealable drain, and an overflow vent. 4. The fuel pump of claim 3, further comprising: a level sensor and alarm for providing indication of leakage fluid level within said reservoir. 5. The fuel pump of claim 1, wherein said seal support comprises an annular structure having an inner diameter different from that of the bore. 6. The fuel pump of claim 1, wherein said first seal and said drain groove are positioned immediately adjacent one another so that the first seal forms a lower wall of the drain groove. 7. The fuel pump of claim 1, wherein the annular drain groove has a circumference along the length of the bore that is greater than the clearance between the bore diameter and the outer diameter of the plunger.

이 특허에 인용된 특허 (26)

Bovina, Luca; Medico, Giuseppe, Actuation system for a servo-assisted mechanical transmission with oil leakage recovery.
상세보기
Schmitz, Geoffrey W., Apparatus, system and method for monitoring fluid flows and/or filter conditions and/or distributing a single fluid.
상세보기
Cavanagh Mark S. ; Swank Bryan W. ; Pataki Arpad M. ; Doszpoly Bela ; Lane John D. ; Shields Kent V. ; Kraus Richard D. ; Delano W. Beale ; Perr Julius P. ; Sah Jy-Jen Frank ; Guluk Alexander ; Peter, Compact high performance fuel system with accumulator.
상세보기
Bowman, Gary M.; Burdick, Wade A., Control valve with integrated electro-hydraulic actuator.
상세보기
Flynn Robert E. (953 N. Greer Ave. Covina CA 91724), Engine conditioning apparatus and method.
상세보기
Toelle Alvin D. (Fenton MI), Fluid control valve.
상세보기
Oguchi Tetsuro,JPX ; Naoi Hisao,JPX ; Ito Takumi,JPX ; Iijima Tadashi,JPX, Fuel injection device with oil seal.
상세보기
Oelerich, Wolfgang, Fuel leakage vent for fuel source and valve interface.
상세보기
Askew James M. A. (Gloucester GB2) Thomas Gerald S. (Gloucester GB2), Fuel pump.
상세보기
Tortu Matthew P. (P.O. Box 1008 Delran NJ 08075) Ross Jay (Pennington NJ), Fuel recovery system.
상세보기
Osborn J. Christopher ; Black John W., High pressure fuel pump assembly.
상세보기
Usui, Satoshi; Yamada, Hiroyuki; Onose, Toru; Saito, Atsuji; Abe, Masami; Kotaki, Masayoshi; Odakura, Hiroshi, High pressure fuel pump for internal combustion engine.
상세보기
Inoue, Hiroshi, High pressure pump having plunger.
상세보기
Inoue, Hiroshi, High pressure pump having plunger.
상세보기
Inoue, Hiroshi, High pressure pump having plunger.
상세보기
Inoue, Hiroshi, High pressure pump having plunger.
상세보기
Kraemer Manfred,DEX, High pressure pump with solenoid operated valve.
상세보기
Isozumi Shuzo,JPX ; Miyaji Wakaki,JPX, High-pressure fuel pump unit for in-cylinder injecting type engine.
상세보기
Kramer Otmar (Lohr/Main DEX), Hydraulic drive apparatus comprising a cylinder.
상세보기
Yokoi Keiji (Tokyo JPX) Minami Yoshio (Kanagawa JPX), Plunger pump.
상세보기
Stockner, Alan R.; Shafer, Scott F., Pumping element for a fluid pump and method.
상세보기
Brken Erich (Im Moddenfelde 24 D-4902 Bad Salzuflen 1 DEX), Sealing bush unit for sealing reciprocating machine parts.
상세보기
Balzano Lucien D. (Jouars Pounchar Vrain FRX) Lepretre Marc V. A. (Bois-Colombes FRX), Sealing device for hydraulic piston mechanism.
상세보기
Nagel, Robert W., System for backup rod seal for hydraulic cylinder.
상세보기
Buchberger Anton H. (16713 - 127th Ave. SE. Renton WA 98058) Tremoulet ; Jr. Olivier L. (18334 Andover St. Edmonds WA 98020) Mordre Sigurd C. (P.O. Box 5087 Vashon Island WA 98070), Vented static seal assembly.
상세보기
Bender, David J.; Stapp, Jason R., Visual fuel system for an engine welder.
상세보기

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

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

Fuel pump 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (26)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Fuel pump 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (26)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트