Global Patent Index - EP 2140140 A1

EP 2140140 A1 20100106 - RECIPROCATING PUMP FOR A HIGH-PRESSURE CLEANING DEVICE

Title (en)

RECIPROCATING PUMP FOR A HIGH-PRESSURE CLEANING DEVICE

Title (de)

KOLBENPUMPE FÜR EIN HOCHDRUCKREINIGUNGSGERÄT

Title (fr)

POMPE À PISTONS DESTINÉE À UN NETTOYEUR HAUTE PRESSION

Publication

EP 2140140 A1 20100106 (DE)

Application

EP 08735205 A 20080412

Priority

  • EP 2008002920 W 20080412
  • DE 102007020300 A 20070420

Abstract (en)

[origin: WO2008128667A1] The invention relates to a reciprocating pump for a high-pressure cleaning device comprising at least one pump chamber, into which a reciprocating piston plunges and which is connected via a suction valve to a suction line for drawing in fluid and connected via a pressure valve to a pressure line for discharging pressurized fluid, wherein the at least one piston is displaceably held on a piston guide. In order to refine the reciprocating pump such that the danger of a piston seizure is reduced, it is proposed according to the invention that the reciprocating pump comprise a piston chamber for each piston, a piston guide having two guide surfaces aligned true with one another being provided in the piston chamber, the piston making sliding contact with said surfaces.

IPC 8 full level

F04B 1/12 (2006.01); F04B 1/14 (2006.01); F04B 39/12 (2006.01); F04B 53/16 (2006.01)

CPC (source: EP)

F04B 1/122 (2013.01); F04B 1/143 (2013.01); F04B 39/126 (2013.01); F04B 53/166 (2013.01)

Citation (search report)

See references of WO 2008128667A1

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 MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102007020300 A1 20081023; EP 2140140 A1 20100106; WO 2008128667 A1 20081030

DOCDB simple family (application)

DE 102007020300 A 20070420; EP 08735205 A 20080412; EP 2008002920 W 20080412