EP 1687524 B1 20080702 - HIGH PRESSURE FEED PUMP FOR INTERNAL COMBUSTION ENGINES
Title (en)
HIGH PRESSURE FEED PUMP FOR INTERNAL COMBUSTION ENGINES
Title (de)
HOCHDRUCKFÖRDERPUMPE FÜR VERBRENNUNGSMOTOREN
Title (fr)
POMPE D'ALIMENTATION HAUTE PRESSION DESTINEE A DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- CH 2004000665 W 20041104
- CH 20352003 A 20031128
Abstract (en)
[origin: WO2005052357A1] The invention relates to a high pressure feed pump (10) comprising a number of pump cylinders (12.1, 12.2) that are fixed to a housing and provided with a cylinder body (16) and admission valves (40.1, 40.2) and discharge valves arranged in the cylinder head (14). The admission valves (40.1, 40.2) of respectively two pump cylinders (12.1, 12.2), in the case of a radial piston pump, or three pump cylinders, in the case of an axial piston pump, that are respectively provided with two plungers (18.1, 18.2) moving out-of-phase in relation to each other about 180 DEG , or about 120 DEG for respectively three plungers, are mechanically interconnected by means of a pivotable rocker (42.1). The position of the rocker (42.1) is controlled by a single actuator (44.1). During the delivery stroke of a plunger (18.1, 18.2), the admission valves (40.1, 40.2) associated with the rocker (42.1) and located in an open position are closed by means of a pulse-type excitation of the actuator (44.1) and a resulting displacement of the rocker (42.1).
IPC 8 full level
F02M 59/36 (2006.01); F04B 1/04 (2006.01); F04B 7/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP)
F02M 59/366 (2013.01); F04B 1/0404 (2013.01); F04B 7/0038 (2013.01); F04B 7/0076 (2013.01); F02M 63/0225 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005052357 A1 20050609; AT E399936 T1 20080715; DE 502004007514 D1 20080814; EP 1687524 A1 20060809; EP 1687524 B1 20080702
DOCDB simple family (application)
CH 2004000665 W 20041104; AT 04797222 T 20041104; DE 502004007514 T 20041104; EP 04797222 A 20041104