Global Patent Index - EP 3234345 A1

EP 3234345 A1 2017-10-25 - DECOUPLING ELEMENT FOR A FUEL INJECTION DEVICE

Title (en)

DECOUPLING ELEMENT FOR A FUEL INJECTION DEVICE

Title (de)

ENTKOPPLUNGSELEMENT FÜR EINE BRENNSTOFFEINSPRITZVORRICHTUNG

Title (fr)

ÉLÉMENT DE DÉSACCOUPLEMENT POUR DISPOSITIF D'INJECTION DE CARBURANT

Publication

EP 3234345 A1 (DE)

Application

EP 15781373 A

Priority

  • DE 102014225988 A
  • EP 2015074144 W

Abstract (en)

[origin: WO2016096200A1] The invention relates to a decoupling element for a fuel injection device, said decoupling element being characterized in that it has a low-noise and pivotable design. The fuel injection device comprises at least one fuel injection valve (1) and a receiving bore (20) in a cylinder head (9) for the fuel injection valve (1) as well as the decoupling element (25) between a valve housing (22) of the fuel injection valve (1) and a wall of the receiving bore (20). The decoupling element (25) has an annular design, in particular in the form of a closed ring, which has a lower end surface (26) that rests on a shoulder (23) of the receiving bore (20) and an upper end face (27) which extends in a conically rising manner from radially outwards to radially inwards and has a bearing contact with a spherically curved shoulder face (21) of the valve housing (22) of the fuel injection valve (1). The fuel injection device is especially suitable for direct injection of fuel into a combustion chamber of a mixture-compressing, spark-ignited internal combustion engine.

IPC 8 full level (invention and additional information)

F02M 61/14 (2006.01); F02M 61/16 (2006.01)

CPC (invention and additional information)

F02M 63/026 (2013.01); F02D 41/3845 (2013.01); F02M 55/04 (2013.01); F02M 61/14 (2013.01); F02M 61/166 (2013.01); F02M 61/168 (2013.01); F02M 55/004 (2013.01); F02M 69/38 (2013.01); F02M 2200/09 (2013.01); F02M 2200/50 (2013.01)

Citation (search report)

See references of WO 2016096200A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

DE 102014225988 A1 20160616; CN 107110099 A 20170829; EP 3234345 A1 20171025; JP 2018500499 A 20180111; KR 20170093851 A 20170816; US 2017328325 A1 20171116; WO 2016096200 A1 20160623

INPADOC legal status


2018-03-28 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170717

2017-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-25 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA

2017-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME