EP 1135604 B1 20050420 - METHOD FOR ADJUSTING THE AMOUNT OF FLOW AT A FUEL INJECTION VALVE
Title (en)
METHOD FOR ADJUSTING THE AMOUNT OF FLOW AT A FUEL INJECTION VALVE
Title (de)
VERFAHREN ZUM EINSTELLEN DER STRÖMUNGSMENGE AN EINEM BRENNSTOFFEINSPRITZVENTIL
Title (fr)
PROCEDE POUR AJUSTER LE DEBIT AU NIVEAU D'UNE SOUPAPE D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 0003451 W 20000929
- DE 19947780 A 19991002
Abstract (en)
[origin: DE19947780A1] The invention relates to a method for adjusting the amount of flow at a fuel injection valve which is provided with an excitable actuating element and a valve closing element that can be axially moved along a longitudinal axis of the valve and engages with a solid valve seat for opening and closing the valve, whereby said valve seat is embodied on a valve seat element (26). The fuel injection valve is also provided with a multi-layer or multi-disc perforated disc (30) that is arranged downstream in relation to the valve seat. Said fuel injection valve is characterised in that the amount of fuel conveyed is measured in a first procedure step, whereby said amount pertains to the opened fuel injection valve. In a second procedure step, a lower bottom layer (62) of the perforated disc (30) is formed in the direction towards the valve seat and into a free cross-section of the flow, whereby said cross-section pertains to the layer (61) lying above. The free cross-section of flow in the perforated disc (30) is changed until the real amount conveyed matches with the pre-determined desired amount.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/16 (2006.01); F02M 61/18 (2006.01); F02M 65/00 (2006.01)
CPC (source: EP US)
F02M 61/162 (2013.01 - EP US); F02M 61/168 (2013.01 - EP US); F02M 61/1853 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19947780 A1 20010412; CN 1131939 C 20031224; CN 1327514 A 20011219; CZ 20011926 A3 20020313; DE 50010102 D1 20050525; EP 1135604 A1 20010926; EP 1135604 B1 20050420; JP 2003511609 A 20030325; US 6755347 B1 20040629; WO 0125620 A1 20010412
DOCDB simple family (application)
DE 19947780 A 19991002; CN 00802138 A 20000929; CZ 20011926 A 20000929; DE 0003451 W 20000929; DE 50010102 T 20000929; EP 00972606 A 20000929; JP 2001528328 A 20000929; US 85733401 A 20011001