EP 0774069 B1 20010926 - FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (de)
BRENNSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
Title (fr)
SOUPAPE D'INJECTION DE CARBURANT POUR MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 9600053 W 19960117
- DE 19503269 A 19950202
Abstract (en)
[origin: DE19503269A1] In prior art injection valves, when the internal combustion engine is hot, especially on hot-starting or hot idling, fuel evaporates off upstream of the injection nozzle disc and at the injection nozzles, as a result of which the running is adversely affected owing to the low fuel supply. The running of the engine is therefore to be improved by preventing the formation of vapour bubbles. The provision of a transition component reducing the heat transfer between the valve seat body (16) and the injection nozzle disc (21) in the form of a raised step (18) formed on the valve seat body (16) ensures that the injection nozzle disc cools off as a result of the drawn-off heat of evaporation of the injected fuel, thus reducing the risk of the formation of vapour bubbles at or upstream of the injection nozzles (25). The fuel injection valve is especially suitable for fuel injection systems in mixture-compressing spark-ignition internal combustion engines.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 53/04 (2006.01); F02M 61/14 (2006.01); F02M 61/16 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP KR US)
F02M 51/0671 (2013.01 - EP US); F02M 61/18 (2013.01 - KR); F02M 61/1853 (2013.01 - EP US); Y10S 239/90 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19503269 A1 19960808; BR 9605297 A 19970916; CN 1062335 C 20010221; CN 1145655 A 19970319; DE 59607762 D1 20011031; EP 0774069 A1 19970521; EP 0774069 B1 20010926; ES 2164862 T3 20020301; JP 3625838 B2 20050302; JP H09511308 A 19971111; KR 100441813 B1 20041108; KR 970702431 A 19970513; RU 2151905 C1 20000627; US 5862991 A 19990126; WO 9623968 A1 19960808
DOCDB simple family (application)
DE 19503269 A 19950202; BR 9605297 A 19960117; CN 96190012 A 19960117; DE 59607762 T 19960117; DE 9600053 W 19960117; EP 96900279 A 19960117; ES 96900279 T 19960117; JP 52315596 A 19960117; KR 19960705533 A 19960930; RU 96120162 A 19960117; US 71858196 A 19961002