Global Patent Index - EP 1504191 A1

EP 1504191 A1 20050209 - REGULATING DEVICE FOR HYDROSTATIC PISTON MACHINES

Title (en)

REGULATING DEVICE FOR HYDROSTATIC PISTON MACHINES

Title (de)

VERSTELLVORRICHTUNG FÜR HYDROSTATISCHE KOLBENMASCHINEN

Title (fr)

DISPOSITIF DE REGLAGE POUR DES MACHINES A PISTON HYDROSTATIQUES

Publication

EP 1504191 A1 20050209 (DE)

Application

EP 03727295 A 20030411

Priority

  • DE 10220889 A 20020510
  • EP 0303793 W 20030411

Abstract (en)

[origin: WO03095831A1] The invention relates to a regulating device for hydrostatic piston machines consisting of an actuating piston (2) which can be moved between two end positions and which can be impinged upon by actuating pressure exerted thereon in an opposite direction. An actuating pressure regulating valve (5) is used to regulate the actuating pressure. The actuating regulating valve (5), which is used to regulate the actuating pressure, comprises a regulating piston which can be shifted from a neutral position and which can be impinged upon with a regulating force which is dependent on the position of the actuating piston (2). The regulating force is directed counter to a control force acting upon the regulating piston (6) and the regulating force is zero when the regulating device (1) is in a rest position. When the regulating device (1) is in a rest position, the regulating piston (6) is in a neutral position and the actuating piston (2) is a specific end position.

IPC 1-7

F04B 1/32; F04B 49/00

IPC 8 full level

F04B 1/32 (2006.01); F04B 49/00 (2006.01)

CPC (source: EP US)

F04B 1/324 (2013.01 - EP US); F04B 49/002 (2013.01 - EP US)

Citation (search report)

See references of WO 03095831A1

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

WO 03095831 A1 20031120; WO 03095831 A9 20041021; DE 10220889 B3 20040212; DE 10220889 C5 20090528; DE 50311633 D1 20090806; EP 1504191 A1 20050209; EP 1504191 B1 20090624; US 2005252369 A1 20051117; US 7171887 B2 20070206

DOCDB simple family (application)

EP 0303793 W 20030411; DE 10220889 A 20020510; DE 50311633 T 20030411; EP 03727295 A 20030411; US 51454805 A 20050714