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：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).