[특허]Vapor recovery pump

Dresser, Inc.

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

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

안녕하세요!
ScienceON 챗봇입니다.
궁금한 것은 저에게 물어봐주세요.

특허 상세정보

MyON담기

내보내기

Vapor recovery pump

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-035/04 F04B-017/04
미국특허분류(USC)	417/418;
출원번호	US-0557339 (2006-11-07)
등록번호	US-8425209 (2013-04-23)
우선권정보	EP-05110415 (2005-11-07)
발명자 / 주소	Larsson, Bengt I.
출원인 / 주소	Dresser, Inc.
대리인 / 주소	Hiscock & Barclay LLP
인용정보	피인용 횟수 : 0 인용 특허 : 16

초록

A vapor recovery pump for a fuel dispensing unit, comprising a housing with two chambers each having a vapor inlet valve and a vapor outlet valve, respectively, the chambers being separated by a movable piston arranged to move a distance between a first and a second end position inside the housing for continuously decreasing and increasing the volume of the chambers. A control element is arranged to selectively vary the location of the first end position.

대표
청구항
▼

1. A vapor recovery pump for a fuel dispensing unit, the vapor recovery pump comprising: a housing having a first end wall and a second end wall;a movable piston arranged to move inside the housing alternately towards a selectively variable first end position and a selectively variable second end position, the movable piston and the first end wall defining a first chamber having a first variable volume and the movable piston and the second end wall defining a second chamber having a second variable volume;a first vapor inlet valve and a first vapor outlet valve connected to the first chamber, the first vapor inlet valve and the first vapor outlet valve opening and closing in response to pressure of the vapor in the first chamber;a second vapor inlet valve and a second vapor outlet valve connected to the second chamber, the second vapor inlet valve and the second vapor outlet valve opening and closing in response to pressure of the vapor in the second chamber;a first vapor flow line coupled to the first vapor inlet valve;a second vapor flow line coupled to the second vapor inlet valve;a first vapor flow measuring device disposed on the first vapor flow line to measure a first vapor flow;a second vapor flow measuring device disposed on the second vapor flow line to measure a second vapor flow; anda control element configured to set a location of the selectively variable first end position of the movable piston relative to the first end wall of the housing, and regulate the movable piston based on the first vapor flow and the second vapor flow, such that the pressure of the vapor in the first chamber is not changed sufficiently to open the first vapor inlet valve and the first vapor outlet valve. 2. A vapor recovery pump according to claim 1, wherein the control element is arranged to selectively vary the location of the selectively variable second end position relative to the second end wall of the housing. 3. A vapor recovery pump according to claim 1, wherein the control element is arranged to oscillate the movable piston between the selectively variable first end position and the selectively variable second end position. 4. A vapor recovery pump according to claim 1, wherein the first vapor outlet valve of the first chamber is arranged to open in response to the pressure within the first chamber exceeding a specific level. 5. A vapor recovery pump according to claim 1, wherein the first vapor inlet valve is arranged to open in response to the pressure within the first chamber falling below a specific level. 6. A vapor recovery pump according to claim 1, wherein the control element is arranged to set the location of the selectively variable first end position and selectively variable second end position, and to move the movable piston between the set location of the selectively variable first end position and set location of the selectively variable second end position to continuously increase and decrease the pressure within the first chamber and the second chamber, so that the second vapor inlet valve and the second vapor outlet valve are continuously opened and closed, respectively, while the first vapor inlet valve and the second vapor inlet valve remain closed. 7. A vapor recovery pump according to claim 1, wherein the control element comprises a magnetic control element for moving the movable piston between the selectively variable first end position and the selectively variable second end position. 8. A vapor recovery pump according to claim 7, wherein the movable piston is magnetic and the magnetic control element comprise coils arranged around the housing, and a control unit arranged to selectively feed the coils with an electric current for moving the movable piston between the selectively variable first end position and the selectively variable second end position. 9. A vapor recovery pump according to claim 1, wherein the control element comprise a rotatable screw-threaded axle passing through a screw-threaded hole in the movable piston, and a control unit arranged to selectively vary the rotation of the rotatable screw-threaded axle for moving the movable piston between the selectively variable first end position and the selectively variable second end position. 10. A vapor recovery pump according to claim 1, wherein the control element comprise an intelligent device having a software application for selectively varying the location of the selectively variable first end position and the selectively variable second end position. 11. A vapor recovery pump according to claim 1, further comprising a vapor flow return line for recirculation of vapor, said vapor flow return line comprising a vapor flow control valve. 12. A vapor recovery pump according to claim 11, wherein the vapor flow return line is connected at least to the first vapor inlet valve and the second vapor outlet valve. 13. A fuel dispensing unit comprising: a vapor recovery pump comprising: a housing having a first end wall and a second end wall;a movable piston arranged to move inside the housing alternately towards a first end position and a second end position, the movable piston and the first end wall defining a first chamber having a first variable volume and the second end wall and the movable piston defining a second chamber having a second variable volume;a first vapor inlet valve and a first vapor outlet valve connected to the first chamber, the first vapor inlet valve and the first vapor outlet valve opening and closing in response to pressure of the vapor in the first chamber;a second vapor inlet valve and a second vapor outlet valve connected to the second chamber, the second vapor inlet valve and the second vapor outlet valve opening and closing in response to pressure of the vapor in the second chamber;a first vapor flow line coupled to the first vapor inlet valve;a second vapor flow line coupled to the second vapor inlet valve;a first vapor flow measuring device disposed on the first vapor flow line to measure a first vapor flow;a second vapor flow measuring device disposed on the second vapor flow line to measure a second vapor flow; and a control element configured to set a location of the first end position of the movable piston relative to the first end wall of the housing, and regulate the movable piston based on the first vapor flow and the second vapor flow, such that the pressure of the vapor in the first chamber is not changed sufficiently to open the first vapor inlet valve and the first vapor outlet valve. 14. A fuel dispensing unit according to claim 13, wherein a first vapor suction nozzle is connected, via a first vapor flow line, to the first vapor inlet valve of the vapor recovery pump, and a second vapor suction nozzle is connected, via a second vapor flow line, to the second vapor inlet valve. 15. A fuel dispensing unit according to claim 14, wherein at least one of the first and second vapor flow lines comprises a control valve. 16. A fuel dispensing unit according to claim 13, wherein the at least one vapor suction nozzle is connected, via a manifold, to the first vapor inlet valve and the second vapor inlet valve. 17. A fuel dispensing unit according to claim 13, wherein the control element is arranged to selectively vary the location of the second end position relative to the second end wall of the housing. 18. A fuel dispensing unit according to claim 13, wherein the control element is arranged to oscillate the movable piston between the first and second end positions. 19. A fuel dispensing unit according to claim 13, wherein the control element is arranged to set the location of the first end position and the second end position, and to move the movable piston between the first end position and the second end position based on the first vapor flow and second vapor flow to continuously increase and decrease the pressure within the first and second chamber, so that the second vapor inlet valve and the second vapor outlet valve are continuously opened and closed, respectively, while the first vapor outlet valve and the first vapor inlet valve remain closed.

이 특허에 인용된 특허 (16)

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

특허 상세정보

Vapor recovery pump

초록

대표
청구항
▼

이 특허에 인용된 특허 (16)

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

특허 상세정보

Vapor recovery pump

초록

대표청구항 ▼

이 특허에 인용된 특허 (16)

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

대표
청구항
▼