EP 1776520 B1 20130515 - TEST METHOD
Title (en)
TEST METHOD
Title (de)
PRÜFVERFAHREN
Title (fr)
PROCEDE DE CONTROLE
Publication
Application
Priority
- EP 2005052705 W 20050613
- DE 102004037963 A 20040805
Abstract (en)
[origin: WO2006015893A1] The invention relates to a method for testing the function of a high-pressure pump (20) comprising several pump elements (24-26), each of which delimits a working chamber (28-30), which is connected by a suction valve (32-34) to a low-pressure area (38), from which fuel can be siphoned and by a pressure valve (40-42) to a high-pressure area, which comprises a central high-pressure fuel accumulator (44) for supplying fuel to an internal combustion engine. The high-pressure pump (20) transports the siphoned fuel from the low-pressure area (38) into the high-pressure fuel accumulator and the pressure of the fuel is detected by a rail pressure sensor (55). To provide a simple, cost-effective test method, the values detected by the rail pressure sensor (55) are used during the operation of the internal combustion engine to test the function of the high-pressure pump (20), when the latter is installed.
IPC 8 full level
F02D 41/38 (2006.01); G01M 99/00 (2011.01); F02D 41/22 (2006.01)
CPC (source: EP US)
F02D 41/22 (2013.01 - EP US); F02D 41/38 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 2006015893 A1 20060216; DE 102004037963 A1 20060316; EP 1776520 A1 20070425; EP 1776520 B1 20130515; JP 2008509315 A 20080327; JP 4605812 B2 20110105; US 2007243077 A1 20071018; US 7775102 B2 20100817
DOCDB simple family (application)
EP 2005052705 W 20050613; DE 102004037963 A 20040805; EP 05756927 A 20050613; JP 2007524308 A 20050613; US 65935805 A 20050613