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    • 5. 发明授权
    • Multi-compartment spout for fuel dispensing nozzle
    • 用于燃料分配喷嘴的多隔室喷口
    • US5450884A
    • 1995-09-19
    • US215925
    • 1994-03-22
    • Chih-Kun J. ShihDavid J. Parrish
    • Chih-Kun J. ShihDavid J. Parrish
    • B67D7/42B67D7/54B65B57/06B65B57/14
    • B67D7/42B67D7/54B67D2007/545B67D7/52
    • A multi-compartment spout for a fuel dispensing nozzle includes a cylindrical, longitudinally extending outer wall, and at least one interior, longitudinally extending dividing wall. The dividing wall defines a fuel passageway within the spout which communicates with a fuel passageway in the body of the nozzle for dispensing fuel into the fuel tank of a vehicle, and a vapor recovery passageway within the spout which communicates with a vapor recovery passageway in the body of the nozzle for returning fuel vapor to an underground tank and thereby preventing the vapor from escaping into the atmosphere. In a preferred embodiment, the spout includes another interior longitudinally extending dividing wall which defines a shut-off passageway within the spout which communicates with a venturi-vacuum chamber in the nozzle for automatically shutting off the flow of fuel through the nozzle when the vehicle fuel tank is full. The shut-off passageway within the spout has a common interior, longitudinally extending dividing wall with the fuel passageway or the vapor recovery passageway. The spout is extruded of a lightweight metal and the body of the nozzle is molded of a composite resin.
    • 用于燃料分配喷嘴的多隔室喷口包括圆柱形纵向延伸的外壁和至少一个内部纵向延伸的分隔壁。 分隔壁限定出口内的燃料通道,其与喷嘴主体中的燃料通道连通,用于将燃料分配到车辆的燃料箱中,以及在喷口内的蒸气回收通道,其与蒸汽回收通道连通 用于将燃料蒸汽返回到地下罐的喷嘴的主体,从而防止蒸气逸出到大气中。 在优选实施例中,喷口包括另一内部纵向延伸的分隔壁,其限定出口内的切断通道,其与喷嘴中的文丘里真空室连通,用于当车辆燃料时自动关闭通过喷嘴的燃料流 坦克满了 喷嘴内的切断通道具有与燃料通道或蒸汽回收通道相同的内部纵向延伸的分隔壁。 喷嘴被挤出轻质金属,并且喷嘴的主体由复合树脂模制而成。
    • 6. 发明授权
    • Fuel dispensing and vapor recovery nozzle
    • 燃油分配和蒸气回收喷嘴
    • US5390712A
    • 1995-02-21
    • US130277
    • 1993-10-01
    • David J. ParrishChih-Kun ShihJohn L. Johnson
    • David J. ParrishChih-Kun ShihJohn L. Johnson
    • B67D7/38B67D7/54B67D5/00
    • B67D7/38B67D7/54
    • A fuel dispensing and vapor recovery nozzle includes a body portion having a fuel passageway therethrough, a main valve in the fuel passageway for controlling the flow of fuel therethrough, a manually operable valve actuating lever for opening the main valve, a pivot member mounting the lever for pivotal movement, an elongate pivot mounting member carrying the pivot member and mounted for sliding longitudinal movement, a venturi responsive to fuel flow through the fuel passageway for creating a vacuum, a shut-off passageway from the venturi to the spout adapted to be closed when the fuel tank is filled, a locking device normally locking the pivot mounting member against longitudinal movement so that the pivot member is stationary and the lever is operable to open the main valve, a vacuum responsive device for rendering the locking device inoperable upon the shut-off passageway becoming blocked, a vapor recovery passageway in the body portion extending longitudinally therethrough, a vapor recovery passageway in the spout and having a large area inlet in the side of the spout near but spaced from the outer end of the spout and an outlet opening in the side of the spout near but externally of the body portion and vapor confinement and a directing sleeve for confining vapors leaving the outlet opening and directing those vapors into the vapor recovery passageway in the body portion.
    • 燃料分配和蒸汽回收喷嘴包括具有通过其的燃料通道的主体部分,用于控制燃料流动的燃料通道中的主阀,用于打开主阀的可手动操作的阀致动杆,安装杆 为了枢转运动,伸长的枢转安装构件承载枢转构件并且安装成用于滑动纵向运动,文丘里管响应燃料流过燃料通道以产生真空,从文氏管到排出口的切断通道适于关闭 当燃料箱被填充时,锁定装置通常将枢转安装构件锁定在纵向运动上,使得枢转构件是静止的并且杆可操作以打开主阀,真空响应装置用于使锁定装置在关闭时不起作用 通道被堵塞,主体部分中的蒸汽回收通道纵向延伸穿过其中,蒸气回收通道 或回收通道,并且在喷嘴的一侧中具有大的面积入口,其在喷口的外端附近但与喷口的外端隔开,并且在喷嘴的靠近主体部分和外部的出口开口和蒸汽限制以及 引导套管限制离开出口开口的蒸气并将这些蒸气引导到主体部分中的蒸汽回收通道中。