公开(公告)号：US20030136355A1

公开(公告)日：2003-07-24

申请号：US10322748

申请日：2002-12-19

申请人： Marwal Systems

发明人： Christophe Gouzou ,  Daniel Brunel ,  Jean Filjak

IPC分类号： F02M025/00

CPC分类号： F02M25/00 ,  B60K15/00 ,  B60K2015/03118 ,  B60K2015/03348 ,  F02M37/0076 ,  F02M37/10

摘要： The invention provides a system for feeding fuel additive on board a motor vehicle, the system comprising an additive tank and a metering pump suitable for sucking in a controlled quantity of additive from said tank, under the control of control means in order to deliver said quantity into the fuel of said vehicle. The system is remarkable in that said metering pump is integrated in a fuel-drawing module placed inside a fuel tank of the vehicle. This saves space. The invention is applicable to the automotive industry.

摘要翻译： 本发明提供了一种用于在汽车上载入燃料添加剂的系统，该系统包括一个适用于在控制装置的控制下从所述罐吸入受控量的添加剂的添加剂罐和计量泵，以便将所述量 进入所述车辆的燃料。 该系统是显着的，因为所述计量泵集成在放置在车辆的燃料箱内的燃料吸收模块中。 这样可以节省空间。 本发明适用于汽车工业。

公开(公告)号：US20030118455A1

公开(公告)日：2003-06-26

申请号：US10323898

申请日：2002-12-20

申请人： Marwal Systems

发明人： Frederico Vilela ,  Laurent Aubree

IPC分类号： F04F005/48

CPC分类号： F04F5/461 ,  F04F5/48 ,  Y10T137/2562 ,  Y10T137/87643

摘要： The invention provides a jet pump comprising a housing containing a nozzle into which an injected fluid is introduced, the housing also possessing a suction orifice, the pump comprising, upstream from the outlet of the nozzle, an auxiliary chamber associated with two sealing elements, each sealing element being adapted to open when the pressure of the injected fluid exceeds a predetermined level, the first sealing element opening at a first pressure level, the second sealing element opening at a second pressure level greater than or equal to the first.

摘要翻译： 本发明提供了一种喷射泵，其包括容纳喷嘴的壳体，其中引入注入的流体，所述壳体还具有吸入孔，所述泵在喷嘴的出口的上游包括与两个密封元件相关联的辅助室，每个 密封元件适于当注射流体的压力超过预定水平时打开，第一密封元件在第一压力水平下打开，第二密封元件在大于或等于第一压力水平的第二压力水平处打开。

公开(公告)号：US20030140696A1

公开(公告)日：2003-07-31

申请号：US10324103

申请日：2002-12-20

申请人： Marwal Systems

发明人： Karim Benghezal ,  Olivier Vaillant ,  Christophe Gouzou

IPC分类号： G01F023/00 ,  G01L007/00

CPC分类号： G01F23/2962 ,  G01F23/2968

摘要： The invention provides a piezoelectric liquid gauge system in particular for a motor vehicle fuel tank, the system comprising piezoelectric means suitable for transmitting a sound wave in a liquid and for detecting said wave in order to determine the distance traveled by the wave in the liquid on the basis of the time between transmission and reception, said piezoelectric means comprising two distinct active piezoelectric portions suitable respectively for directing a sound wave towards a reference obstacle and a sound wave towards the surface of the liquid to be gauged, the system being wherein the pellet is contained in a housing suitable for being fixed in position in the tank in which measurement is to be performed, the reference obstacle extending over a face of the housing which faces one of the active portions, said face also having a measurement opening placed facing the other active portion and suitable for allowing the measurement sound waves to pass through.

摘要翻译： 本发明提供了一种特别用于机动车辆燃料箱的压电液体计量系统，该系统包括适于在液体中传输声波并用于检测所述波的压电装置，以便确定波中的波在液体中行进的距离 所述压电装置包括两个不同的有源压电部分，所述两个不同的有源压电部分分别适合于将声波朝向参考障碍物引导，并且声波朝向要测量的液体的表面引导， 被容纳在适于固定在要进行测量的罐中的适当位置的壳体中，所述参考障碍物延伸到所述壳体的面向所述有效部分之一的面上，所述面还具有面向所述活动部分的测量开口 其他有效部分并且适于允许测量声波通过。