EP 1799996 B1 20100324 - FUEL INJECTION VALVE
Title (en)
FUEL INJECTION VALVE
Title (de)
BRENNSTOFFEINSPRITZVENTIL
Title (fr)
SOUPAPE D'INJECTION DE CARBURANT
Publication
Application
Priority
- EP 2005054698 W 20050920
- DE 102004049280 A 20041009
Abstract (en)
[origin: WO2006040246A1] Disclosed is a fuel injection valve which is characterized in that a perforated disk (23) that is provided with a plurality of discharge ports (24) is disposed downstream of a valve seat member (16) comprising a fixed valve seat (29). An inlet port (19) encompassing an annular hollow inflow space (26) is provided directly upstream of the discharge ports (24). The valve seat member (16) covers the hollow inflow space (26) in such a way that the discharge ports (24) of the perforated disk (23) which are located downstream are covered up. Each discharge port (24) is provided with one inlet zone (33) whose diameter D1 is significantly greater than the diameter D2 of a zone which is located immediately downstream thereof at a sharp angle and forms the narrowest cross section of the discharge port (24), the discharge port (24) expanding in a trumpet-shaped fashion to a diameter D3 from said zone in the direction of flow. The inventive fuel injection valve is particularly suitable for use in fuel injection systems of mixture-compressing spark-ignited internal combustion engines.
IPC 8 full level
F02M 61/18 (2006.01)
CPC (source: EP US)
F02M 61/1853 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
DE 102004049280 A1 20060413; CN 101035980 A 20070912; CN 101035980 B 20101229; DE 502005009285 D1 20100506; EP 1799996 A1 20070627; EP 1799996 B1 20100324; JP 2008516136 A 20080515; JP 4646256 B2 20110309; US 2009200402 A1 20090813; WO 2006040246 A1 20060420
DOCDB simple family (application)
DE 102004049280 A 20041009; CN 200580034185 A 20050920; DE 502005009285 T 20050920; EP 05794491 A 20050920; EP 2005054698 W 20050920; JP 2007535135 A 20050920; US 66485805 A 20050920