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).