EP 2422072 B1 20121226 - HIGH-PRESSURE PUMP
Title (en)
HIGH-PRESSURE PUMP
Title (de)
HOCHDRUCKPUMPE
Title (fr)
POMPE À HAUTE PRESSION
Publication
Application
Priority
- EP 2010052373 W 20100225
- DE 102009002518 A 20090421
Abstract (en)
[origin: WO2010121857A1] A high-pressure pump (1), in particular serving as a radial piston pump or in-line piston pump for fuel injection systems of air-compressing auto-ignition internal combustion engines, has a pump assembly (13) and a driving shaft (6). The pump assembly (13) comprises a pump piston (16) guided in a cylinder bore (15) along an axis (17) of the cylinder bore (15), which can be driven by the driving shaft (6). Furthermore, a front surface (19) of the pump piston (16) in the cylinder bore (15) defines a pump working chamber (20). The pump piston (16) is made of a material which has an anisotropic elastic modulus. Thus having a high-pressure in the pump working chamber (20) causing the expansion of the cylinder bore (15), a radial deformation of the pump piston (16) can be reached, compensating the expansion of the cylinder bore (15).
IPC 8 full level
F02M 63/02 (2006.01); F02M 59/02 (2006.01); F02M 59/44 (2006.01); F04B 1/04 (2006.01); F04B 53/00 (2006.01)
CPC (source: EP)
F02M 59/02 (2013.01); F02M 59/445 (2013.01); F02M 63/0265 (2013.01); F04B 1/0408 (2013.01); F05C 2251/02 (2013.01)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009002518 A1 20101028; CN 102414434 A 20120411; CN 102414434 B 20140212; EP 2422072 A1 20120229; EP 2422072 B1 20121226; WO 2010121857 A1 20101028
DOCDB simple family (application)
DE 102009002518 A 20090421; CN 201080017940 A 20100225; EP 10706987 A 20100225; EP 2010052373 W 20100225