公开(公告)号：EP0110699A1

公开(公告)日：1984-06-13

申请号：EP83307236.6

申请日：1983-11-28

申请人： SOLEX (U.K.) LIMITED - IN LIQUIDATION

发明人： Pagdin, Brian Colin ,  Marriage, David John

IPC分类号： F02D5/02 ,  F02D19/02

CPC分类号： F02D41/365 ,  F02D19/024 ,  F02D41/0027 ,  F02D41/08 ,  F02D41/10 ,  F02M21/0212 ,  F02M21/0239 ,  F02M21/0254 ,  F02M21/0266 ,  F02M21/0278 ,  F02M21/0284 ,  Y02T10/32

摘要： @ An air/fuel induction system includes a pair of solenoid valves injecting fuel into an induction passage of a multicylinder engine. The valves supply fuel upstream of the inlet manifold to the engine and do not therefore direct fuel to specific cylinders. The solenoids (36, 36a) operate alternetely through pulses developed by drive units controlled by a microprocessor-based control unit (19). Each valve is independently timed by a respective timer-counter (44, 45) and valve operation overlaps in some circumstances. This allows smaller valves to be used and overcomes the problem of gusting at low speeds. The system may be applied to an LGP fuel system used as an additional fuel supply.

公开(公告)号：EP0112089A1

公开(公告)日：1984-06-27

申请号：EP83307277.0

申请日：1983-11-29

申请人： SOLEX (U.K.) LIMITED - IN LIQUIDATION

发明人： Pagdin, Brian Colin

IPC分类号： F02D19/02

CPC分类号： F02D41/365 ,  F02D19/024 ,  F02D41/0027 ,  F02D41/08 ,  F02D41/10 ,  F02M21/0212 ,  F02M21/0239 ,  F02M21/0254 ,  F02M21/0266 ,  F02M21/0278 ,  F02M21/0284 ,  Y02T10/32

摘要： A motor vehicle LPG fuel system includes a pair of digital injection valves in a body (23) having a common inlet (17), a common outlet (18) and an outlet chamber into which the gaseous LPG is injected alternately by the two valves. The metered pulsed outputs of the two valves collected in the outlet chamber is conveyed as a single gaseous fuel supply to the carburetter induction passage (10). The injection valves can be located spaced from the carburetter (11) whereby to avoid excessive heating. An electronic control unit (19) including a microprocessor and a data store matrix responds to certain engine operating conditions, including engine speed and engine loading, and controls alternate operation of the valves in synchronism with the engine ignition firing sequence. Under certain conditions one of the valves may open before the other closes.

摘要翻译： 机动车辆液化石油气燃料系统包括在主体（23）中的一对数字喷射阀，其具有共同的入口（17），公共出口（18）和出口室，气态LPG由两个阀交替地喷射到其中。 收集在出口室中的两个阀的计量脉冲输出作为单个气体燃料供应被输送到化油器诱导通道（10）。 喷射阀可以与化油器（11）间隔开，从而避免过度加热。 包括微处理器和数据存储矩阵的电子控制单元（19）响应于包括发动机转速和发动机负载在内的某些发动机工作条件，并且控制与发动机点火点火顺序同步的阀的交替操作。 在某些情况下，一个阀门可能会在另一个阀门关闭之前打开。

公开(公告)号：EP0084219A1

公开(公告)日：1983-07-27

申请号：EP82306361.5

申请日：1982-11-30

申请人： SOLEX (U.K.) LIMITED - IN LIQUIDATION

发明人： Ullman, Thomas James ,  Shadbolt, Colin Francis ,  Pagdin, Brian Colin ,  Clarke, Peter John ,  Marriage, David John ,  Sheppard, Ian John

IPC分类号： F02D19/02

CPC分类号： F02D19/023 ,  F02M21/0212 ,  F02M21/0233 ,  F02M21/0239 ,  Y02T10/32 ,  Y10T137/0318

摘要： A motor vehicle fuel system operable selectively to supply metered quantities of either petrol or LPG in its gaseous state to a carburetter induction passage (15). The LPG system (18) includes a single stage pressure regulator and an injection valve (26). The regulator operates to vary the pressure of gaseous LPG with variations in engine loading by referring that pressure across a single diaphragm to the pressure established in the induction passage (15) downstream of the throttle valve (16) by operation of the engine (100), whilst maintaining that regulated pressure above that subsisting in the induction passage (15) upstream of the throttle valve (16). An electronic control system (19) responds to certain engine operating conditions and controls operation of the injection valve (26) whereby the latter injects metered quantities of gaseous LPG for presentation to the induction passage (15) upstream of the throttle valve (16) in accordance with the requirements of the engine (100).