公开(公告)号：EP0514993A1

公开(公告)日：1992-11-25

申请号：EP92201444.4

申请日：1992-05-21

申请人： NUOVOPIGNONE INDUSTRIE MECCANICHE E FONDERIA S.p.A.

发明人： Bergamini, Giorgio ,  Paris, Ernesto

IPC分类号： B67D5/06 ,  B67D5/378

CPC分类号： B67D7/0476 ,  Y10T137/86324

摘要： A vapour recovery system for a fuel filling installation in which the submerged end (15') of the discharge pipe (15) from the variable speed positive displacement pump (10) is connected to a closed tube (16) which extends along the bottom of said underground tank (2) and has a porosity (20-22) such as to generate very small bubbles from the recovered air-vapour mixture, the vent pipe (25) of the underground tank (2) having a large cross-section and being provided with baffles (26) in its interior; particular embodiments are also provided.

摘要翻译： 一种用于燃料充填装置的蒸汽回收系统，其中来自变速容积式泵（10）的排放管（15）的浸没端（15'）连接到封闭管（16），所述封闭管（16）沿着 所述地下储罐（2）具有孔隙度（20-22），以从回收的空气 - 蒸气混合物中产生非常小的气泡，地下罐（2）的排气管（25）具有大截面， 在其内部设有挡板（26）; 还提供了具体实施例。

公开(公告)号：EP0751095A1

公开(公告)日：1997-01-02

申请号：EP96112396.5

申请日：1993-07-01

申请人： NUOVOPIGNONE INDUSTRIE MECCANICHE E FONDERIA S.p.A.

发明人： Bergamini, Giorgio ,  Paris, Ernesto

IPC分类号： B67D5/04

CPC分类号： B67D7/0486

摘要： A system for effective vapour recovery in fuel filling installations (1,2) without seal members between the delivery gun (11) and the filler pipe (3) of the vehicle to be refuelled, comprising control means (15) which consist in a pulse converter (22) which is fed at its input by the electrical pulses of frequency proportional to the variable volumetric delivery rate, to give at its output a corresponding series of electrical pulses having the same said frequency but of constant but adjustable set duration, which are fed to the input of an operational unit which at its output provides their mean value indicative of the volumetric rate of delivery, this being fed as first input signal to a comparator together with a second analog signal indicative of the speed of rotation of a positive displacement pump drive motor (17) and hence indicative of the volumetric flow rate of the draw-in vapour, the output of said comparator being fed to the control unit of said motor to maintain the motor speed constant when said two input signals to the comparator are of equal value and to increase or reduce said speed when said first signal is respectively greater or less than said second signal.

摘要翻译： 一种用于在燃料填充装置（1,2）中有效蒸汽回收的系统，其不需要在要加油的车辆的输送枪（11）和加油管（3）之间的密封构件，包括控制装置（15） 转换器（22），其通过与可变容积传送速率成比例的频率的电脉冲在其输入端馈送，以在其输出端给出具有相同的所述频率但具有恒定但可调节的设定持续时间的相应的一系列电脉冲， 馈送到操作单元的输入端，其在其输出端提供其指示体积传送速率的平均值，其作为第一输入信号与指示正位移的转速的第二模拟信号一起馈送到比较器 泵驱动马达（17），因此指示吸入蒸汽的体积流量，所述比较器的输出被馈送到所述马达的控制单元以保持马达 当所述比较器的两个输入信号为相等值时，速度恒定，并且当所述第一信号分别大于或小于所述第二信号时增加或减小所述速度。

公开(公告)号：EP0514993B1

公开(公告)日：1995-03-29

申请号：EP92201444.4

申请日：1992-05-21

申请人： NUOVOPIGNONE INDUSTRIE MECCANICHE E FONDERIA S.p.A.

发明人： Bergamini, Giorgio ,  Paris, Ernesto

IPC分类号： B67D5/06 ,  B67D5/378

CPC分类号： B67D7/0476 ,  Y10T137/86324