摘要:
A unitary sump frame (30) made from a continuous material is disclosed. A substantially planar and continuous flange (40) has an inner perimeter defining an opening in the frame and an outer perimeter. A lip (50) is integrally connected to the flange and extends downwardly from the flange. The lip includes a securing mechanism that is operative to attach a component to the frame. A lug (60) is integrally connected to the lip and extends away from the opening. The lug (60) is operative for anchoring the frame (30).
摘要:
A vapor recovery valve (60) that includes two mechanisms for opening the valves is disclosed. The first mechanism opens the valve (60) when fuel is being dispensed by a fuel delivery system (10). The second mechanism selectively opens the valve (60) independent of whether the fuel delivery system (10) is dispensing fuel. A method for dry testing a vapor recovery system is also disclosed. The method involves disabling the fuel dispensing capability of the fuel delivery system (10), and then operating the vapor recovery system at a rate that corresponds to a predetermined imaginary fuel dispensing rate. Next, the vapor recovery path (30) is opened, and its operation is measured, followed by determining if it is sufficient for the imaginary fuel delivery rate.
摘要:
A breakaway coupling (10) including first and second coupling parts (11,12) secured together by releasable means (14), the releasable means permitting separation of the coupling parts (11,12) in a given direction when exposed to a separating force in excess of a predetermined force in said direction, at least one of the coupling parts (11,12) including valve means (60), the valve means (60) being normally retained at an open position and being movable to a closed position when said coupling parts (11,12) move apart in said direction, the valve means (60) comprising an annular valve seat (62) formed in said one coupling part (11,12), a valve element (67) which when seated on the valve seat (62) prevents fluid flow through said one coupling part (11,12), the valve element (67) being movably mounted within the coupling part (11,12) for movement between open and closed positions, the valve element (67) when at said open position being spaced from the valve seat (62) to permit flow of fluid through the coupling part (11,12) and when at said closed position being seated upon the valve seat (62) to prevent fluid flow through the coupling part (11,12), the valve element (67) being pivotally mounted on an elongate support (70) for movement from the open position to an intermediate position whereat it is opposed to said valve seat (62) but spaced therefrom in said given direction, the support (70) extending longitudinally in said given direction and being movable in said given direction between a first position whereat the support (70) locates the valve element (67) at its open position and a second position whereat the support (70) locates the valve element (67) at its closed position, trigger release means (80) for retaining the support (70) at its first position, the valve element (67) being co-operable with the trigger release means (80) to cause release of the support (70) when the valve element (67) moves to its intermediate position to thereby enable the support (70) to move to its second position and the valve element (67) to move to its closed position.
摘要:
A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows (48) which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout (34) to define a vapor return flow path (52) which extends through a nozzle body. The body of the nozzle is compositely formed by a body member (32) and a vapor path cap (54) which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve (38) which may be opened, or maintained opened, by an operating lever (40) only when a trip mechanism stem (42) is latched in an operative position. A mechanical interlock (44) 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.
摘要:
A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows (48) which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout (34) to define a vapor return flow path (52) which extends through a nozzle body. The body of the nozzle is compositely formed by a body member (32) and a vapor path cap (54) which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve (38) which may be opened, or maintained opened, by an operating lever (40) only when a trip mechanism stem (42) is latched in an operative position. A mechanical interlock (44) 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.
摘要:
A fluid nozzle (1) for dispensing high pressure fluids includes an outer sleeve, a nozzle inlet (3) for receiving a high pressure fluid and a nozzle outlet (4) for discharging the high pressure fluid, an inner pipe in fluid communication with the nozzle inlet and the nozzle outlet, a valve biased to close the fluid flow passage through the inner pipe, a piston (6), and a plurality of radially movable connecting jaws (5) positioned about the periphery of the outlet (4). The connecting jaws (5) have first ends engaging the piston (6) and second ends for engaging an inlet of a fluid receptacle (2). In the connected position, the pressure exerted by the fluid causes the connecting jaws (5), the piston (6), and the inner pipe to move axially relative to the outer sleeve and in turn causes the valve to open, permitting passage of the high pressure fluid through the nozzle.