Global Patent Index - EP 2771571 A1

EP 2771571 A1 20140903 - HYDROSTATIC PISTON MACHINE

Title (en)

HYDROSTATIC PISTON MACHINE

Title (de)

HYDROSTATISCHE KOLBENMASCHINE

Title (fr)

MACHINE À PISTONS HYDROSTATIQUE

Publication

EP 2771571 A1 20140903 (DE)

Application

EP 12772109 A 20121011

Priority

  • DE 102011117081 A 20111027
  • EP 2012070103 W 20121011

Abstract (en)

[origin: WO2013060576A1] A hydrostatic piston machine, in particular an axial piston machine, is disclosed which has a plurality of piston spaces, in which pistons perform a reciprocating movement. Here, a respective piston space can be connected alternately via a control opening in each case to a low-pressure opening and a high-pressure opening. Reversing regions are provided between the low-pressure opening and the high-pressure opening, via which reversing regions a respective piston space is moved in the transition between the low-pressure opening and the high-pressure opening. A mouth is provided in a respective reversing region, via which mouth a respective piston space can be connected to an accumulator element, in particular a pre-compression volume, when the control opening thereof overlaps with one of the mouths during operation of the piston machine.

IPC 8 full level

F04B 1/20 (2006.01); F04B 11/00 (2006.01)

CPC (source: EP)

F04B 1/2042 (2013.01); F04B 11/0016 (2013.01); F04B 2205/08 (2013.01)

Citation (search report)

See references of WO 2013060576A1

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 102011117081 A1 20130502; CN 103958893 A 20140730; CN 103958893 B 20160928; EP 2771571 A1 20140903; WO 2013060576 A1 20130502

DOCDB simple family (application)

DE 102011117081 A 20111027; CN 201280058300 A 20121011; EP 12772109 A 20121011; EP 2012070103 W 20121011