IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0453012
(1995-05-30)
|
발명자
/ 주소 |
- Leininger Donald L. (Cincinnati OH) Guertin Robert W. (Cincinnati OH) Baker Bruce P. (Cincinnati OH)
|
출원인 / 주소 |
- Dover Corporation (New York NY 02)
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
0 |
초록
▼
A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path
A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve which may be opened, or maintained opened, by an operating lever only when a trip mechanism stem is latched in an operative position. A mechanical interlock prevents latching of the trip mechanism stem unless the bellows is compressed in sealing engagement with a fill pipe. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, the trip stem is also unlatched. A vapor valve is provided in the bellows to prevent the escape of fuel vapors when the nozzle is in a rest position. Angular relationships of the bellows and the spout facilitate obtaining a seal with a fill pipe. A groove is formed in the spout outwardly of and adjacent the vapor seal so that the vapor seal maintains its integrity in the event the spout is broken when inserted in a fill pipe. A trip mechanism sub-assembly, a spout sub-assembly and a bellows sub-assembly facilitate rebuilding, as well as the original assembly, of the nozzle.
대표청구항
▼
A vapor recovery nozzle comprising a body having a fuel passage, a vapor passage, a fuel inlet end and a fuel outlet end, said fuel inlet end of the nozzle body being adapted for attachment to hose means for conveying fuel to the nozzle and returning vapor to a storage tank, a spout, in flow communi
A vapor recovery nozzle comprising a body having a fuel passage, a vapor passage, a fuel inlet end and a fuel outlet end, said fuel inlet end of the nozzle body being adapted for attachment to hose means for conveying fuel to the nozzle and returning vapor to a storage tank, a spout, in flow communication with the fuel passage, projecting from the outlet end of the body, a vapor return passage inlet portion having a distal entrance for receiving vapors and in flow communication with the vapor passage of the body, a normally closed, fuel control valve interposed in said fuel passage, a trip stem slidable to and from an operative position, lever means connected to the trip stem and effective to open the control valve, to maintain it open, only when the trip stem is in its operative position, means, engageable with said trip stem, for latching it in its operative position, said nozzle having a delivery position in which the vapor return passage inlet portion and its distal entrance are positioned to capture vapors displaced from the fuel tank, characterized in that the nozzle body is compositely formed and comprises a main body member in which the fuel passage is formed and within which the control valve trip stem, and latching means are mounted, and a vapor passage cap, separably attached to said main body member to form said compositely formed nozzle body, and extending along the upper surface of the main body member from adjacent the inlet end of the nozzle body to a point adjacent the outlet end of the nozzle body, in overlying relation to both the trip stem and the fuel valve, and defining the upper and side surfaces of the portions of the compositely formed nozzle body that are in overlying relation to said trip stem and fuel valve, along substantially the full length of the vapor passage cap, said vapor passage being compositely formed in said main body member and said vapor passage cap, with a portion of the vapor passage extending substantially the full length of the vapor passage cap.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.