Global Patent Index - EP 2603690 B1

EP 2603690 B1 20170927 - NOISE OPTIMIZED HIGH PRESSURE PUMP

Title (en)

NOISE OPTIMIZED HIGH PRESSURE PUMP

Title (de)

GERÄUSCHOPTIMIERTE HOCHDRUCKPUMPE

Title (fr)

POMPE HAUTE PRESSION À NIVEAU SONORE OPTIMISÉ

Publication

EP 2603690 B1 20170927 (DE)

Application

EP 11733854 A 20110719

Priority

  • DE 102010039113 A 20100810
  • EP 2011062301 W 20110719

Abstract (en)

[origin: WO2012019881A1] The invention relates to a high pressure pump of a fuel injection system of an internal combustion engine, having a pump housing 1 in which a pump camshaft 2 is rotatably mounted and interacts with a pump piston base 15 of a pump piston 5 by means of a roller tappet 4 disposed in a tappet body 10 and engaged with an inner annular flange 18 of the tappet body 10, said pump piston being displaceable up and down in a pump cylinder 8 disposed in the pump housing 1 and covered by a pump cylinder head 7, forming a pump working chamber 6. A spring disc 16,16a rests on the inner annular flange 18 opposite the roller tappet 4 and encloses the pump piston base 15, and a pump spring 17 is disposed between the spring disc 16,16a and the pump cylinder head 7. According to the invention, noise emission behavior of a generic high pressure pump is improved. Said aim is achieved in that a clearance compensation device is provided for compensating for a clearance between the pump piston base 15, the roller shoe 12, and the spring disc 16,16a.

IPC 8 full level

F02M 59/10 (2006.01); F02M 59/44 (2006.01)

CPC (source: EP)

F02M 59/102 (2013.01); F02M 59/445 (2013.01); F04B 1/0426 (2013.01); F02M 2200/09 (2013.01)

Citation (examination)

None

Designated contracting state (EPC)

AL 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 RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102010039113 A1 20120216; EP 2603690 A1 20130619; EP 2603690 B1 20170927; WO 2012019881 A1 20120216

DOCDB simple family (application)

DE 102010039113 A 20100810; EP 11733854 A 20110719; EP 2011062301 W 20110719