Global Patent Index - EP 1299644 B1

EP 1299644 B1 20050202 - HYDRAULIC TRANSFORMER

Title (en)

HYDRAULIC TRANSFORMER

Title (de)

HYDROTRANSFORMATOR

Title (fr)

TRANSFORMATEUR HYDRAULIQUE

Publication

EP 1299644 B1 20050202 (DE)

Application

EP 01953814 A 20010628

Priority

  • DE 0102387 W 20010628
  • DE 10034238 A 20000713

Abstract (en)

[origin: WO0206669A1] The invention relates to a hydraulic transformer in which a plurality of displacers are guided in a displacer section. The travel of the displacer is determined by a lifting element, the pressure supply and discharge being controlled by a control element comprising at least three control grooves. According to the invention, either the displacer section, the lifting element or the control element can be driven while depending on the component driven the lifting element or the displacer section is positioned in such a way that it is freely adjustable, and the third, remaining component is positioned in such a way that it is fixed to the housing.

IPC 1-7

F04B 1/12; F04B 9/10; F04C 15/04; F04B 1/30; F04B 1/28

IPC 8 full level

F01B 3/02 (2006.01); F01B 25/02 (2006.01); F01C 1/344 (2006.01); F01C 20/00 (2006.01); F01C 21/18 (2006.01); F04B 1/12 (2006.01); F04B 1/28 (2006.01); F04B 1/30 (2006.01); F04B 9/10 (2006.01); F04C 2/344 (2006.01); F04C 14/18 (2006.01)

CPC (source: EP US)

F04B 1/12 (2013.01 - EP US); F04B 1/28 (2013.01 - EP US); F04B 1/328 (2013.01 - EP US); F04B 9/10 (2013.01 - EP US); F04C 14/18 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0206669 A1 20020124; DE 10034238 A1 20020131; DE 50105252 D1 20050310; EP 1299644 A1 20030409; EP 1299644 B1 20050202; JP 2004504535 A 20040212; US 2003113212 A1 20030619; US 6887045 B2 20050503

DOCDB simple family (application)

DE 0102387 W 20010628; DE 10034238 A 20000713; DE 50105252 T 20010628; EP 01953814 A 20010628; JP 2002512540 A 20010628; US 33287303 A 20030113