公开(公告)号：EP1391605A1

公开(公告)日：2004-02-25

申请号：EP02019450.2

申请日：2002-08-30

申请人： WALBRO CORPORATION

发明人： Galka, William E. ,  Hilbig, Bradley L. ,  Roche, Ronald H. ,  Van Allen, James E.

IPC分类号： F02M17/04

CPC分类号： F02M17/04 ,  F02M19/00 ,  Y10S261/68

摘要： A fuel metering system for a combustion engine carburetor utilizes a non-convoluted, planar, flexible diaphragm which does not require a molding process to form a traditional convolution. The diaphragm defines in part a pressure controlled fuel metering chamber on one side and a reference chamber at atmospheric pressure on the other side. During operation of the engine, sub-atmospheric pressure within a fuel and air mixing passage draws fuel from the metering chamber to mix with air for combustion within the engine. As pressure within the metering chamber thus decreases, the diaphragm flexes into metering chamber. The displacement of the diaphragm actuates a flow control valve of the metering system which flows pressurized make-up fuel into the metering chamber until the diaphragm returns to its datum position. Preferably, hardware of the flow control valve which is in direct contact with a surface of the diaphragm exposed to the metering chamber does not penetrate the diaphragm as the traditional rivet and washer assembly would. Therefore, manufacturing costs are reduced and any opportunity of leakage between the fuel metering chamber and reference chamber is eliminated. Preferably, the carburetor is of a manual external purge type in order to exert sufficient vacuum within the metering chamber to displace the metering diaphragm thus opening the flow control valve to purge the carburetor of unwanted fuel vapor and air prior to starting the engine. The novel planar diaphragm thereby resolves problems associated with traditional metering diaphragms such as variation in convolution datum height affecting flow control valve lever/diaphragm clearances, non-symmetric convolution axis or distorted convolution affecting diaphragm pressure response and recovery.

摘要翻译： 用于内燃机化油器的燃料计量系统利用无卷曲的平面柔性隔膜，其不需要模制工艺来形成传统的卷绕。 隔膜部分地在一侧限定压力控制的燃料计量室，在另一侧限定在大气压力下的参考室。 在发动机运行期间，燃料和空气混合通道内的低于大气压的压力从计量室吸取燃料以与空气混合以在发动机内燃烧。 随着计量室内的压力因此减小，膜片弯曲进入计量室。 隔膜的位移启动计量系统的流量控制阀，使流量增加的补充燃料流入计量室，直到隔膜返回到其基准位置。 优选地，流量控制阀的与暴露于计量腔室的隔膜的表面直接接触的硬件不像传统的铆钉和垫圈组件那样穿透隔膜。 因此，制造成本降低并且燃料计量室和参考室之间的任何泄漏机会被消除。 优选地，化油器为手动外部净化类型，以便在计量室内施加足够的真空以移动计量膜片，从而打开流量控制阀以在起动发动机之前清除化油器中不想要的燃料蒸气和空气。 从而解决了与传统计量膜片相关的问题，例如影响流量控制阀杆/膜片间隙的卷积基准高度的变化，不对称卷积轴或扭曲卷积，影响膜片压力响应和恢复。

公开(公告)号：EP1031725A3

公开(公告)日：2001-05-23

申请号：EP00103801.7

申请日：2000-02-23

申请人： WALBRO CORPORATION

发明人： Graham, Joseph M. ,  Kuperus, Peter P. ,  Roche, Ronald H. ,  Tuckey, Charles H. ,  Werner, Matthew L.

IPC分类号： F02M37/10

CPC分类号： F02M25/0854 ,  B60K15/03 ,  B60K2015/03557 ,  F02D33/003 ,  F02D41/266 ,  F02M25/089 ,  F02M37/103 ,  F02M2037/082 ,  Y10T137/86035 ,  Y10T137/86067 ,  Y10T137/86228

摘要： A vehicle fuel system has an electronic control module received within a fuel tank to send data to and receive data from the electronic control unit (ECU) for the vehicle engine and other vehicle control systems, to provide an electronic control of the vehicle fuel system and to receive signals from one or more sensors mounted within the fuel tank which provide information about the operation of the fuel system. The fuel system integrates a plurality of components into the vehicle fuel tank to reduce the number of openings through the vehicle fuel tank and the number of eternal connections which must be made in assembly of the fuel system into a vehicle. By disposing a fuel vapor canister within the fuel tank, each vapor vent valve within the fuel tank can communicate completely within the tank with the vapor canister with a single outlet extending from the fuel tank to communicate fuel vapor from the canister with an intake manifold of the engine. Desirably, this outlet may extend through the same opening in the fuel tank through which the fuel pump, vapor canister, electronic control module and other components of the vehicle fuel system are inserted into the fuel tank. Notably, the number of openings in the tank is reduced and in one embodiment, only two openings are used in the tank, one for a fill pipe through which fuel is introduced into the tank and the other for the insertion of the various fuel system components into the tank.

公开(公告)号：EP1031725B1

公开(公告)日：2004-12-29

申请号：EP00103801.7

申请日：2000-02-23

申请人： WALBRO CORPORATION

发明人： Graham, Joseph M. ,  Kuperus, Peter P. ,  Roche, Ronald H. ,  Tuckey, Charles H. ,  Werner, Matthew L.

IPC分类号： F02M37/10

CPC分类号： F02M25/0854 ,  B60K15/03 ,  B60K2015/03557 ,  F02D33/003 ,  F02D41/266 ,  F02M25/089 ,  F02M37/103 ,  F02M2037/082 ,  Y10T137/86035 ,  Y10T137/86067 ,  Y10T137/86228

摘要： A vehicle fuel system has an electronic control module received within a fuel tank to send data to and receive data from the electronic control unit (ECU) for the vehicle engine and other vehicle control systems, to provide an electronic control of the vehicle fuel system and to receive signals from one or more sensors mounted within the fuel tank which provide information about the operation of the fuel system. The fuel system integrates a plurality of components into the vehicle fuel tank to reduce the number of openings through the vehicle fuel tank and the number of eternal connections which must be made in assembly of the fuel system into a vehicle. By disposing a fuel vapor canister within the fuel tank, each vapor vent valve within the fuel tank can communicate completely within the tank with the vapor canister with a single outlet extending from the fuel tank to communicate fuel vapor from the canister with an intake manifold of the engine. Desirably, this outlet may extend through the same opening in the fuel tank through which the fuel pump, vapor canister, electronic control module and other components of the vehicle fuel system are inserted into the fuel tank. Notably, the number of openings in the tank is reduced and in one embodiment, only two openings are used in the tank, one for a fill pipe through which fuel is introduced into the tank and the other for the insertion of the various fuel system components into the tank.

公开(公告)号：EP1031725A2

公开(公告)日：2000-08-30

申请号：EP00103801.7

申请日：2000-02-23

申请人： WALBRO CORPORATION

发明人： Graham, Joseph M. ,  Kuperus, Peter P. ,  Roche, Ronald H. ,  Tuckey, Charles H. ,  Werner, Matthew L.

IPC分类号： F02M37/10

CPC分类号： F02M25/0854 ,  B60K15/03 ,  B60K2015/03557 ,  F02D33/003 ,  F02D41/266 ,  F02M25/089 ,  F02M37/103 ,  F02M2037/082 ,  Y10T137/86035 ,  Y10T137/86067 ,  Y10T137/86228

摘要： A vehicle fuel system has an electronic control module received within a fuel tank to send data to and receive data from the electronic control unit (ECU) for the vehicle engine and other vehicle control systems, to provide an electronic control of the vehicle fuel system and to receive signals from one or more sensors mounted within the fuel tank which provide information about the operation of the fuel system. The fuel system integrates a plurality of components into the vehicle fuel tank to reduce the number of openings through the vehicle fuel tank and the number of eternal connections which must be made in assembly of the fuel system into a vehicle. By disposing a fuel vapor canister within the fuel tank, each vapor vent valve within the fuel tank can communicate completely within the tank with the vapor canister with a single outlet extending from the fuel tank to communicate fuel vapor from the canister with an intake manifold of the engine. Desirably, this outlet may extend through the same opening in the fuel tank through which the fuel pump, vapor canister, electronic control module and other components of the vehicle fuel system are inserted into the fuel tank. Notably, the number of openings in the tank is reduced and in one embodiment, only two openings are used in the tank, one for a fill pipe through which fuel is introduced into the tank and the other for the insertion of the various fuel system components into the tank.

摘要翻译： 车辆燃料系统具有容纳在燃料箱内的电子控制模块，用于向车辆发动机和其他车辆控制系统的电子控制单元（ECU）发送数据并从其接收数据，以提供车辆燃料系统的电子控制， 以接收来自安装在燃料箱内的一个或多个传感器的信号，该传感器提供关于燃料系统的操作的信息。 燃料系统将多个部件集成到车辆燃料箱中，以减少通过车辆燃料箱的开口的数量以及在将燃料系统组装到车辆中时必须进行的永久连接的数量。 通过在燃料箱内设置燃料蒸汽罐，燃料箱内的每个蒸汽排放阀可以与罐体完全在罐内与蒸汽罐连通，单个出口从燃料箱延伸出来，以使来自罐的燃料蒸汽与一个进气歧管 引擎。 理想地，该出口可以延伸穿过燃料箱中的相同开口，燃料泵，蒸气罐，电子控制模块和车辆燃料系统的其它部件通过该开口插入燃料箱。 值得注意的是，罐中的开口数量减少，在一个实施例中，罐中仅使用两个开口，一个用于填充管，通过该填充管将燃料引入罐中，另一个用于插入各种燃料系统部件 进入坦克