EP 2698527 A1 20140219 - Valve assembly for an injection valve and injection valve
Title (en)
Valve assembly for an injection valve and injection valve
Title (de)
Ventilanordnung für ein Einspritzventil und Einspritzventil
Title (fr)
Ensemble de soupape pour soupape d'injection et soupape d'injection
Publication
Application
Priority
EP 12180630 A 20120816
Abstract (en)
Valve assembly (14) of an injection valve (10), the valve assembly (14) comprising a valve body (20) including a central longitudinal axis (A), the valve body (20) comprising a cavity (24) with a fluid outlet portion (28), a valve needle (22) axially movable in the cavity (24), the valve needle (22) preventing a fluid flow through the fluid outlet portion (28) in a closing position and releasing the fluid flow through the fluid outlet portion (28) in further positions. The valve needle (22) has a guide portion (40) being designed to guide the valve needle (22) in the valve body (20), a tip portion (50) being designed to act together with the valve body (20) to prevent the fluid flow through the fluid outlet portion (28), and a lower needle portion (42) being arranged axially between the guide portion (40) and the tip portion (50). The lower needle portion (42) comprises a recess (44). The recess (44) enables a fluid flow to the fluid outlet portion (28). A flow resistance element (52) is arranged in the recess (44) radially between the lower needle portion (42) and the valve body (20). The flow resistance element (52) is shaped in a manner that at least in an axial portion of the recess (44) the recess (44) has a cross-section area with a given axially asymmetric shape.
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/18 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 51/0603 (2013.01); F02M 61/08 (2013.01); F02M 61/1893 (2013.01); F02M 2200/707 (2013.01)
Citation (search report)
- [X] US 4082224 A 19780404 - MANGUS ERVIN E
- [X] DE 10254681 A1 20040609 - SIEMENS AG [DE]
- [A] EP 0891851 A1 19990120 - FISA CORP [JP]
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 12180630 A 20120816; EP 2013066398 W 20130805