Title:
ELECTROMOTIVE HYDRAULIC DRIVE, AND METHOD FOR PROVIDING A DEFINED HYDRAULIC PRESSURE AND/OR VOLUME
Document Type and Number:
WIPO Patent Application WO/2011/026944
Kind Code:
A9
Abstract:
The present invention discloses an electromotive hydraulic drive (1) for a hydraulically operable component (90), in particular for a setting unit. The hydraulic drive (1) comprises a hydraulic cylinder (10) with a piston (20) which can be moved rectilinearly within the hydraulic cylinder (10) by means of a rotational movement of an electrically driven spindle (50). The piston (20) divides the cylinder (10) into a working chamber (12) facing away from the spindle and a working chamber (14) facing toward the spindle. The working chamber (12) facing away from the spindle has a first hydraulic opening (44) and the working chamber (14) facing toward the spindle has a second hydraulic opening (46). By means of said hydraulic openings (44, 46), the component (90) can be operated with hydraulics in a targeted manner.
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Inventors:
NOBBENHUIS ANDRE HERMANN (DE)
Application Number:
PCT/EP2010/062970
Publication Date:
November 10, 2011
Filing Date:
September 03, 2010
Export Citation:
Assignee:
BOELLHOFF VERBINDUNGSTECHNIK (DE)
NOBBENHUIS ANDRE HERMANN (DE)
NOBBENHUIS ANDRE HERMANN (DE)
International Classes:
B21J15/02; B21J15/10; B21J15/20; B21J15/26; F04B9/04; F15B7/00; F15B7/08
Attorney, Agent or Firm:
HEYER, Volker (Elsenheimerstrasse 49, München, DE)
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