Title:
ELECTRIC-HYDRAULIC OPERATION DRIVING DEVICE
Document Type and Number:
Japanese Patent JPS58102807
Kind Code:
A
Abstract:
1. Electrohydraulic positioning drive having a reversible pump (11) which is driven by an electric motor (10) and delivers pressure medium, in each case via one of two pressure lines (12, 13), to a double-acting adjusting member (16), an adjustable throttle means (22, 25) being connected onto the pressure lines, by means of which throttle means (22, 25) a connection can be made to a chamber of low pressure, characterised in that the adjusting member is a directional control valve (16), the slide valve (17) of which is acted upon on both sides by centering springs (18, 19), in that a throttle valve (22, 25) is connected on each directional control valve chamber (14, 15) acted upon by the pump, which throttle valve (22, 25) is connected to a chamber (21) of lower pressure, and in that the throttle valves are coupled and are adjustable in opposite directions.
Inventors:
EGON REHINERU
JIIKUFURIITO MAIERU
DEIITERU BUAIKURE
JIIKUFURIITO MAIERU
DEIITERU BUAIKURE
Application Number:
JP20624482A
Publication Date:
June 18, 1983
Filing Date:
November 26, 1982
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
F15B11/08; F15B7/00; F15B13/04; F15B13/042; (IPC1-7): F15B11/08
Attorney, Agent or Firm:
Osamu Nakahira