EP 1727983 B1 20091118 - HIGH-PRESSURE PUMP, IN PARTICULAR FOR A FUEL-INJECTION DEVICE IN AN INTERNAL COMBUSTION ENGINE
Title (en)
HIGH-PRESSURE PUMP, IN PARTICULAR FOR A FUEL-INJECTION DEVICE IN AN INTERNAL COMBUSTION ENGINE
Title (de)
HOCHDRUCKPUMPE, INSBESONDERE FÜR EINE KRAFTSTOFFEINSPRITZEINRICHTUNG EINER BRENNKRAFTMASCHINE
Title (fr)
POMPE HAUTE PRESSION, NOTAMMENT DESTINEE A UN DISPOSITIF D'INJECTION DE CARBURANT D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- EP 2005050193 W 20050118
- DE 102004013244 A 20040318
Abstract (en)
[origin: WO2005090790A1] The inventive high-pressure pump comprises at least one pump element (18) comprising a pump plunger (20), which is displaceably configured in a cylinder bore (28) of a housing part (22) of the high-pressure pump, is driven to perform a stroke and which delimits a pump working chamber (30) in the cylinder bore (28), whereby fuel is sucked into said chamber via an inlet valve (34) during the intake stroke of the pump plunger (20). The inlet valve (34) comprises a plunger-shaped valve member (56), which co-operates with a sealing surface (60) comprising a valve seat (52) for controlling the connection of the pump working chamber (30) to the fuel supply line (32). The valve member (56) is equipped with a head (58), on which the sealing surface (60) is configured, and is located in the pump working chamber (30). A shaft (62) that adjoins the head (58) protrudes from the pump working chamber (30). The valve seat (52) is configured in the housing part (22) in a transition zone between the cylinder bore (28) and a smaller bore (50) that adjoins the latter and has a smaller diameter. The shaft (62) of the valve member (56) projects through the bore (50) into a region (54) of the housing part (22) that faces away from the pump working chamber (30). A closing spring (64) that engages with the shaft (62) of the valve member (56) is located in said region.
IPC 8 full level
F04B 53/10 (2006.01); F04B 1/04 (2006.01); F04B 39/10 (2006.01); F04B 39/12 (2006.01); F04B 53/16 (2006.01)
CPC (source: EP US)
F02M 59/464 (2013.01 - EP US); F02M 59/485 (2013.01 - EP US); F04B 1/0452 (2013.01 - EP US); F04B 53/102 (2013.01 - EP US); F04B 53/1087 (2013.01 - EP US); F04B 53/16 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005090790 A1 20050929; AT E449260 T1 20091215; CN 100417814 C 20080910; CN 1934357 A 20070321; DE 102004013244 A1 20051006; DE 502005008539 D1 20091231; EP 1727983 A1 20061206; EP 1727983 B1 20091118; JP 2007529675 A 20071025; JP 4395534 B2 20100113; US 2007215113 A1 20070920; US 7363913 B2 20080429
DOCDB simple family (application)
EP 2005050193 W 20050118; AT 05707796 T 20050118; CN 200580008710 A 20050118; DE 102004013244 A 20040318; DE 502005008539 T 20050118; EP 05707796 A 20050118; JP 2007503314 A 20050118; US 59332605 A 20050118