Global Patent Index - EP 2006544 B1

EP 2006544 B1 20110112 - Piston pump with variable eccentricity

Title (en)

Piston pump with variable eccentricity

Title (de)

Kolbenpumpe mit variabler Exzentrizität

Title (fr)

Pompe à pistons avec excentricité variable

Publication

EP 2006544 B1 20110112 (DE)

Application

EP 08005400 A 20080322

Priority

AT 9372007 A 20070618

Abstract (en)

[origin: EP2006544A2] The pump has displacing units (6) movable from a mantle surface (18) of an eccentric sleeve (17) against fluid pressure, where the displacing units are movable radial to a main axis (16) of the pump. A spring unit (39) acts on the eccentric sleeve in an axial direction, and a pump shaft section (23) is formed as a narrow eccentric pin (24) with an eccentric pin axis (25), which runs to the main axis at an angle of inclination (26). The eccentric sleeve is guided to the eccentric pin and has a cylindrical mantle surface whose ends (20) run parallel to the main axis. An independent claim is also included for a method for driving a fluid driven motor of a hydraulic cylinder or a hydraulic motor.

IPC 8 full level

F04B 49/20 (2006.01)

CPC (source: EP US)

F04B 49/125 (2013.01 - EP); Y10T 83/869 (2015.04 - EP US)

Designated contracting state (EPC)

AT DE FR GB NL

DOCDB simple family (publication)

EP 2006544 A2 20081224; EP 2006544 A3 20090218; EP 2006544 B1 20110112; AT 495364 T 20110115; AT 505439 A1 20090115; AT 505439 B1 20110315; DE 502008002260 D1 20110224; US 2010170377 A1 20100708; US 8322997 B2 20121204; WO 2008154665 A2 20081224; WO 2008154665 A3 20090219

DOCDB simple family (application)

EP 08005400 A 20080322; AT 08005400 T 20080322; AT 2008000199 W 20080606; AT 9372007 A 20070618; DE 502008002260 T 20080322; US 66497109 A 20090606